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Balls - Solid, Thermoplastic
Plastic Balls (solid thermoplastic balls)
Professional Plastics supplies a broad range of industrial plastic balls used in bearings, rollers, and ball seal valves.a wide range of precision ground plastics and rubber balls.
- Low-weight, non conductive, corrosion and chemical resistant. These balls are being used in a wide variety of applications including check valves, flow and liquid level indicators, and unlubricated bearings.
- Please allow 10-14 days for shipping. Select Express Shipping option for faster service.
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Balls - Hollow Plastic PP & HDPE
Hollow Plastic Balls are spheres that can float on surface of liquid in open tank and thereby greatly reduce the exposed liquid surface area - up to 90%. Dramatically diminish objectionable fumes and odors. Blanket of spheres also insulates heated liquid reducing evaporation and heat requirements. Ideal for plating tanks and similar open tank installations where the liquid surface can be covered with a blanket of spheres without impeding access to the tank for process purposes. Spheres are hollow and will float on any liquid. No welt or rim on which chemicals can deposit, and being smooth they ensure a much tighter surface cover.
Types of Hollow Plastic Balls available from Professional Plastics:
- Polypropylene (PP) is non-toxic and able to withstand continuous working temperatures of 110° C (230°F) Polypropylene is suitable for use in most known chemicals.
- High Density Polyethylene (HDPE) generally suitable as above but with a continuous working temperature limitation of 80° C. (176° F) softening point about 110° C (230°F). High density polyethylene has better chemical resistance to certain compounds like oil, and other hydro-carbons. Also less stress cracking at low temperatures than polypropylene. Color white translucent except 100 mm, black for outside use. All sizes are blow molded.
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PTFE Balls
PTFE Balls (Polytetrafluorethylene) Balls. - PTFE is a non-friction material which is resistant to most corrosive agents and is electrically nonconductive. PTFE is particularly suitable for use in apparatus designed to handle cryogenic liquids and acids. Commonly used in ball seal valves.
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Viton Balls
Viton Rubber Balls (Viton balls) are available from Professional Plastics in several sizes.
Seamless Viton Rubber Balls Provide Excellent Sealing in Flow Control Applications such as Pumps and Check- Valves. Viton Balls are Suitable for High Temperature and Harsh Chemical Environments.
Standard color is black.
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Nylon Balls - Solid
Nylon Balls are used in a variety of bearing, and seal applications. These balls are precision ground for tight tolerance & are made of solid, high-quality thermoplastic. Nylon 6/6 offers high strength (especially at elevated temperatures), toughness at low temperatures, stiffness, wear and abrasion resistance, low coefficient of friction and good chemical resistance. All Nylons absorb moisture; this increases flexibility and impact resistance. Use for high impact application requiring strength and rigidity. UV light results in degradation over time. Resists hydrocarbons, aromatics, aliphatic solvents, automotive oils and fuels, and refrigerants. Attacked by strong acids, bases, and phenol. Gradually attacked by hot water. Lightweight -- approximately 1/8 the weight of bronze, 1/7 the weight of cast iron, and 1/2 the weight of aluminum -- which reduces both the inertial and static loads and eases the handling of large components during maintenance or replacement procedures.
- Color: Natural (yellow-cream color)
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Torlon® 4203 Balls
Torlon® balls are used for high-strength, wear-resistant ball bearings.
- Excellent for High-Load Recirculating Ball Bearings.
Automotive Application: Torlon Check Balls for 4-Wheel-Drive Vehicle Transmissions
The durability of high-torque automatic transmissions was improved when Chrysler product development engineers specified Torlon® poly(amide-imide) resin for the check balls. The resin was selected for multiple variations of three- and four-speed transmissions coupled to the Magnum Engine product line. The check
balls withstand system pressures, and provide excellent sealing surfaces without causing metal damage, and without adverse reaction to transmission oil at
temperatures approaching 300°F.
Boating/Sailing Application: Headsail Roller Furlings:
Torlon® ball bearings in each swivel carry the load so that the sail furls freely. An over center halyard attachment can distribute the load uniformly to each ball bearing, providing a smooth rotation.
Small Boat Traveller Cars move freely, even under high non-vertical loads. Low-load dinghy cars use Delrin Bearings, while hi-load cars for large dinghies, keel boats and offshore boats to 27 ft (8m) use Torlon® balls to increase working load. Torlon balls provide maximum load carrying ability.
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Vespel® SP-1 Balls
Vespel® SP-1 Balls - Balls made from Vespel® high-performance polyimide offer solutions to the world's most demanding applications. Dupont Vespel offers a broad combination of temperature resistance, chemical resistance, mechanical toughness, natural lubricity,wear-resistance and insulation properties. Parts made from DuPont Vespel SP-1 provide operating temperatures from cryogenic to 300°C (570°F), great plasma resistance, plus a UL rating for minimal electrical and thermal conductivity.
Vespel ® SP-1 is the unfilled base resin grade. SP-1 provides maximum physical strength, elongation, and toughness as well as the best electrical and thermal insulation values.
Professional Plastics stocks a complete inventory of Dupont Vespel Rods, Plates, Tubes, Rings & Bars. Vespel Balls are normally shipped within 10-14 days. Faster service is available upon request. Locations in California, Texas, New York, Washington, Arizona, Utah, Colorado, Georgia, Oregon and Singapore & Taiwan.
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PVC Balls - Solid
Solid PVC Balls are available from Professional Plastics in standard grey color. These precision-ground, solid thermoplastic balls are typically used in applications such as ball seal valves and petrochemical processing applications.
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Delrin® Balls - solid
Delrin® Acetal POM Balls are used in a variety of bearing, and seal applications. These balls are precision ground for tight tolerance & are made of solid, high-quality thermoplastic.
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Tolerance ±.001" for all sizes.
- Color: Natural (white)
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PEEK Balls
PEEK Balls (thermoplastic) PEEK is an abbreviation for PolyEtherEther-Ketone, a high performance engineering thermoplastic. PEEK 450G (aka Victrex PEEK 450G) grades offer chemical and water resistance similar to PPS (PolyPhenylene Sulfide), but can operate at higher temperatures. PEEK can be used continuously to 480°F (250°C) and in hot water or steam without permanent loss in physical properties. For hostile environments, PEEK is a high strength alternative to fluoropolymers. Victrex 450G PEEK carries a V-0 flammability rating and exhibits very low smoke and toxic gas emission when exposed to flame.
- Excellent bearing & seal material in hostile environments.
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Acrylic Balls (Polished)
Acrylic Balls (Polished) - Round Clear Cast Acrylic Polished Balls Acrylics (Polymethyl-Methacrylate) is an amorphous thermoplastic which is optically transparent, unaffected by moisture, and offers a high strength-to-weight ratio. Common trade names of acrylic include Plexiglas®, Lucite®, and Acrylite®.
These acrylic balls offer high light transmittance with a Refractive Index of 1.49 and can be easily heat-formed without loss of optical clarity. Prolonged exposure to moisture, or even total immersion in water, does not significantly effect the mechanical or optical properties of our acrylic balls. These acrylic balls have been UV stabilized for good weatherability and resistance prolonged sunlight exposure. Acrylic balls are unaffected by aqueous solutions of most laboratory chemicals, by detergents, cleaners, dilute inorganic acids, alkalis, and aliphatic hydrocarbons -- however, acrylics are NOT recommended for use with chlorinated or aromatic hydrocarbons, esters, or ketones.
These are beautiful, crystal-clear acrylic spheres. Use as decorative accents, knobs, or feet on acrylic boxes. They have a polished surface that is flawlessly smooth.
Crystal clear highly polished acrylic balls. Great for many types of projects and decorations.
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Torlon® 5030 Balls
Torlon® 5030 balls are available in sizes ranging from 1/8" up to 2" diameter are available from Professional Plastics Plastics. Torlon® Balls offer outstanding corrosion, wear and toughness. They can successfully serve low load applications, and many unlubricated bearing applications. Applications in Frac Balls, Marine Riggings and other harsh environments as well as in fluid handling check balls are common, thousands of others are possible.
- Excellent Frac Ball Material !!
- Minimum Order Applies - Request Pricing Today
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Frac Balls - Fracturing Balls
Exploiting tight gas reservoirs requires the ability to fracture wells according to production requirements. Most require multiple transverse fractures at specific locations within the horizontal well. In order to maximize productivity, the creation of multiple fractures is of critical importance.
One popular method for creating fractures is the use of frac ports & sliding sleeves. Openhole packers isolate different sections of the horizontal well. A sliding sleeve is placed between each packer pair and is opened by injecting a ball inside the borehole. Typically, a compleiton string is placed inside the well. The string include frac ports and open hole packers spaced to specifications. The spacing between packaers may be up to several hundred feet. The packers are actuated by mechanical, hydraulic or chemical mechanisms. In order to activate each sleeve, a properly sized ball is pumped along with a fracturing fluid inside the well. Each ball is smaller than the opening of all of the previous sleeves, but larger than the sleeve it is intended to open. Seating of the ball exerts pressure at the end of the sliding sleeve assembly, causing it to slide and open the frac ports. Once the port is opened, the fluid is diverted into the openhole space outside of the completion assembly, casuing the formation to fracture.
At the completion of each fracturing stage, the next larger ball is injected into the well, which open the next sleeve, and so on, until all of the sleeves are opened and multiple fractures are created in the well. The main advantage of this completion technique is the speed of operation which also reduces costs.
Typically, ball sizes are staged in .500" or .250" increments. It is improtant to understand that this process is not without risk of failure and should only be undertaken after considerable research and consideration.
Frac plugs are designed to seal from above the plug only. Each plug uses a plastic fracturing ball that seals on top of the mandrel. The fracturing ball is free to float off the mandrel with pressure or flow from below the plug. This allows immediate flowback of all zones following treatment.
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Acetal Balls - Solid
Delrin® Acetal POM Balls are used in a variety of bearing, and seal applications. These balls are precision ground for tight tolerance & are made of solid, high-quality thermoplastic.
- Tolerance ±.001" for all sizes.
- Standard Color: Natural (white). - Black may be produced on a special order basis.
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Cabochons - Acrylic Half Balls
Clear Acrylic Cabochons - (Acrylic Half Balls) These clear acrylic cabochons are lightweight when compared to glass. Acrylic cabochons (cabs) are solid, transparent, polished and void-free. They are flat on one side and convex on the other. They are made of Plexiglass and are produced by injection molding. Injection molding means that each cab has an injection gate mark, or small blemish at one point around the edge.
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Plastics
Plastic is the general common term for a wide range of synthetic or semisynthetic organic amorphous solid materials suitable for the manufacture of industrial products. Plastics are typically polymers of high molecular weight, and may contain other substances to improve performance and/or reduce costs. The word Plastic derives from the Greek (plastikos) meaning fit for molding, and (plastos) meaning molded. It refers to their malleability, or plasticity during manufacture, that allows them to be cast, pressed, or extruded into an enormous variety of shapes—such as films, fibers, plates, tubes, bottles, boxes, and much more. The common word plastic should not be confused with the technical adjective plastic, which is applied to any material which undergoes a permanent change of shape (plastic deformation) when strained beyond a certain point. Aluminum, for instance, is plastic in this sense, but not a plastic in the common sense; in contrast, in their finished forms, some plastics will break before deforming and therefore are not plastic in the technical sense.
There are two types of plastics: Thermoplastics and Thermosets.
- Thermoplastics will soften and melt if enough heat is applied; examples are polyethylene, polystyrene, and PTFE.
- Thermosets do not soften or melt no matter how much heat is applied. Examples: Micarta, GPO, G-10
Overview:
Plastics can be classified by their chemical structure, namely the molecular units that make up the polymer's backbone and side chains. Some important groups in these classifications are the acrylics, polyesters, silicones, polyurethanes, and halogenated plastics. Plastics can also be classified by the chemical process used in their synthesis; e.g., as condensation, polyaddition, cross-linking, etc. Other classifications are based on qualities that are relevant for manufacturing or product design. Examples of such classes are the thermoplastic and thermoset, elastomer, structural, biodegradable, electrically conductive, etc. Plastics can also be ranked by various physical properties, such as density, tensile strength, glass transition temperature, resistance to various chemical products, etc.
Due to their relatively low cost, ease of manufacture, versatility, and imperviousness to water, plastics are used in an enormous and expanding range of products, from paper clips to spaceships. They have already displaced many traditional materials, such as wood; stone; horn and bone; leather; paper; metal; glass; and ceramic, in most of their former uses.
The use of plastics is constrained chiefly by their organic chemistry, which seriously limits their hardness, density, and their ability to resist heat, organic solvents, oxidation, and ionizing radiation. In particular, most plastics will melt or decompose when heated to a few hundred degrees celsius. While plastics can be made electrically conductive to some extent, they are still no match for metals like copper or aluminum.[citation needed] Plastics are still too expensive to replace wood, concrete and ceramic in bulky items like ordinary buildings, bridges, dams, pavement, railroad ties, etc.
Chemical Structure:
Common thermoplastics range from 20,000 to 500,000 in molecular mass, while thermosets are assumed to have infinite molecular weight. These chains are made up of many repeating molecular units, known as repeat units, derived from monomers; each polymer chain will have several thousand repeat units. The vast majority of plastics are composed of polymers of carbon and hydrogen alone or with oxygen, nitrogen, chlorine or sulfur in the backbone. (Some of commercial interests are silicon based.) The backbone is that part of the chain on the main "path" linking a large number of repeat units together. To vary the properties of plastics, both the repeat unit with different molecular groups "hanging" or "pendant" from the backbone, (usually they are "hung" as part of the monomers before linking monomers together to form the polymer chain). This customization by repeat unit's molecular structure has allowed plastics to become such an indispensable part of twenty first-century life by fine tuning the properties of the polymer.
Some plastics are partially crystalline and partially amorphous in molecular structure, giving them both a melting point (the temperature at which the attractive intermolecular forces are overcome) and one or more glass transitions (temperatures above which the extent of localized molecular flexibility is substantially increased). So-called semi-crystalline plastics include polyethylene, polypropylene, poly (vinyl chloride), polyamides (nylons), polyesters and some polyurethanes. Many plastics are completely amorphous, such as polystyrene and its copolymers, poly (methyl methacrylate), and all thermosets.
History of Plastics:
The first human-made plastic was invented by Alexander Parkes in 1855; he called this plastic Parkesine (later called celluloid). The development of plastics has come from the use of natural plastic materials (e.g., chewing gum, shellac) to the use of chemically modified natural materials (e.g., rubber, nitrocellulose, collagen, galalite) and finally to completely synthetic molecules (e.g., bakelite, epoxy, polyvinyl chloride, polyethylene).
Types of Plastics:
Cellulose-based plastics
In 1855, an Englishman from Birmingham named Alexander Parkes developed a synthetic replacement for ivory which he marketed under the trade name Parkesine, and which won a bronze medal at the 1862 World's fair in London. Parkesine was made from cellulose (the major component of plant cell walls) treated with nitric acid and a solvent. The output of the process (commonly known as cellulose nitrate or pyroxilin) could be dissolved in alcohol and hardened into a transparent and elastic material that could be molded when heated. By incorporating pigments into the product, it could be made to resemble ivory.
Bakelite®
The first plastic based on a synthetic polymer was made from phenol and formaldehyde, with the first viable and cheap synthesis methods invented in 1909 by Leo Hendrik Baekeland, a Belgian-born American living in New York state. Baekeland was searching for an insulating shellac to coat wires in electric motors and generators. He found that mixtures of phenol (C6H5OH) and formaldehyde (HCOH) formed a sticky mass when mixed together and heated, and the mass became extremely hard if allowed to cool. He continued his investigations and found that the material could be mixed with wood flour, asbestos, or slate dust to create "composite" materials with different properties. Most of these compositions were strong and fire resistant. The only problem was that the material tended to foam during synthesis, and the resulting product was of unacceptable quality. Baekeland built pressure vessels to force out the bubbles and provide a smooth, uniform product. He publicly announced his discovery in 1912, naming it bakelite. It was originally used for electrical and mechanical parts, finally coming into widespread use in consumer goods in the 1920s. When the Bakelite patent expired in 1930, the Catalin Corporation acquired the patent and began manufacturing Catalin plastic using a different process that allowed a wider range of coloring. Bakelite was the first true plastic. It was a purely synthetic material, not based on any material or even molecule found in nature. It was also the first thermosetting plastic. Conventional thermoplastics can be molded and then melted again, but thermoset plastics form bonds between polymers strands when cured, creating a tangled matrix that cannot be undone without destroying the plastic. Thermoset plastics are tough and temperature resistant. Bakelite® was cheap, strong, and durable. It was molded into thousands of forms, such as radios, telephones, clocks, and billiard balls. Phenolic plastics have been largely replaced by cheaper and less brittle plastics, but they are still used in applications requiring its insulating and heat-resistant properties. For example, some electronic circuit boards are made of sheets of paper or cloth impregnated with phenolic resin. Bakelite® is now a registered trademark of Bakelite GmbH.
Polystyrene & PVC
After the First World War, improvements in chemical technology led to an explosion in new forms of plastics. Among the earliest examples in the wave of new plastics were polystyrene (PS) and polyvinyl chloride (PVC), developed by IG Farben of Germany. Polystyrene is a rigid, brittle, inexpensive plastic that has been used to make plastic model kits and similar knick-knacks. It would also be the basis for one of the most popular "foamed" plastics, under the name styrene foam or Styrofoam. Foam plastics can be synthesized in an "open cell" form, in which the foam bubbles are interconnected, as in an absorbent sponge, and "closed cell", in which all the bubbles are distinct, like tiny balloons, as in gas-filled foam insulation and flotation devices. In the late 1950s, High Impact Styrene was introduced, which was not brittle. It finds much current use as the substance of signage, trays, figurines and novelties. PVC has side chains incorporating chlorine atoms, which form strong bonds. PVC in its normal form is stiff, strong, heat and weather resistant, and is now used for making plumbing, gutters, house siding, enclosures for computers and other electronics gear. PVC can also be softened with chemical processing, and in this form it is now used for shrink-wrap, food packaging, and rain gear.
Nylon
The real star of the plastics industry in the 1930s was polyamide (PA), far better known by its trade name nylon. Nylon was the first purely synthetic fiber, introduced by DuPont Corporation at the 1939 World's Fair in New York City. In 1927, DuPont had begun a secret development project designated Fiber66, under the direction of Harvard chemist Wallace Carothers and chemistry department director Elmer Keiser Bolton. Carothers had been hired to perform pure research, and he worked to understand the new materials' molecular structure and physical properties. He took some of the first steps in the molecular design of the materials. His work led to the discovery of synthetic nylon fiber, which was very strong but also very flexible. The first application was for bristles for toothbrushes. However, Du Pont's real target was silk, particularly silk stockings. Carothers and his team synthesized a number of different polyamides including polyamide 6.6 and 4.6, as well as polyesters.
It took DuPont twelve years and US$27 million to refine nylon, and to synthesize and develop the industrial processes for bulk manufacture. With such a major investment, it was no surprise that Du Pont spared little expense to promote nylon after its introduction, creating a public sensation, or "nylon mania".
Nylon mania came to an abrupt stop at the end of 1941 when the USA entered World War II. The production capacity that had been built up to produce nylon stockings, or just nylons, for American women was taken over to manufacture vast numbers of parachutes for fliers and paratroopers. After the war ended, DuPont went back to selling nylon to the public, engaging in another promotional campaign in 1946 that resulted in an even bigger craze, triggering the so called nylon riots. Subsequently polyamides 6, 10, 11, and 12 have been developed based on monomers which are ring compounds; e.g. caprolactam.nylon 66 is a material manufactured by condensation polymerization. Nylons still remain important plastics, and not just for use in fabrics. In its bulk form it is very wear resistant, particularly if oil-impregnated, and so is used to build gears, bearings, bushings, and because of good heat-resistance, increasingly for under-the-hood applications in cars, and other mechanical parts.
Natural Rubber
Natural rubber is an elastomer (an elastic hydrocarbon polymer) that was originally derived from latex, a milky colloidal suspension found in the sap of some plants. It is useful directly in this form (indeed, the first appearance of rubber in Europe is cloth waterproofed with unvulcanized latex from Brazil) but, later, in 1839, Charles Goodyear invented vulcanized rubber; this a form of natural rubber heated with, mostly, sulfur forming cross-links between polymer chains (vulcanization), improving elasticity and durability. Plastic is very known in these areas.
Synthetic Rubber
The first fully synthetic rubber was synthesized by Lebedev in 1910. In World War II, supply blockades of natural rubber from South East Asia caused a boom in development of synthetic rubber, notably Styrene-butadiene rubber (a.k.a. Government Rubber-Styrene). In 1941, annual production of synthetic rubber in the U.S. was only 231 tons which increased to 840 000 tons in 1945. In the space race and nuclear arms race, Caltech researchers experimented with using synthetic rubbers for solid fuel for rockets. Ultimately, all large military rockets and missiles would use synthetic rubber based solid fuels, and they would also play a significant part in the civilian space effort.
Polymethyl methacrylate (PMMA), better known as Plexiglass acrylic. Although acrylics are now well known for their use in paints and synthetic fibers, such as fake furs, in their bulk form they are actually very hard and more transparent than glass, and are sold as glass replacements under trade names such as Acrylite, Perspex, Plexiglas and Lucite. These were used to build aircraft canopies during the war, and its main application now is large illuminated signs such as are used in shop fronts or inside large stores, and for the manufacture of vacuum-formed bath-tubs.
Polyethylene (PE), sometimes known as polythene, was discovered in 1933 by Reginald Gibson and Eric Fawcett at the British industrial giant Imperial Chemical Industries (ICI). This material evolved into two forms, Low Density Polyethylene (LDPE), and High Density Polyethylene (HDPE). PEs are cheap, flexible, durable, and chemically resistant. LDPE is used to make films and packaging materials, while HDPE is used for containers, plumbing, and automotive fittings. While PE has low resistance to chemical attack, it was found later that a PE container could be made much more robust by exposing it to fluorine gas, which modified the surface layer of the container into the much tougher polyfluoroethylene.
Polypropylene (PP), which was discovered in the early 1950s by Giulio Natta. It is common in modern science and technology that the growth of the general body of knowledge can lead to the same inventions in different places at about the same time, but polypropylene was an extreme case of this phenomenon, being separately invented about nine times. The ensuing litigation was not resolved until 1989. Polypropylene managed to survive the legal process and two American chemists working for Phillips Petroleum, J. Paul Hogan and Robert Banks, are now generally credited as the primary inventors of the material. Polypropylene is similar to its ancestor, polyethylene, and shares polyethylene's low cost, but it is much more robust. It is used in everything from plastic bottles to carpets to plastic furniture, and is very heavily used in automobiles.
Polyurethane (PU) was invented by Friedrich Bayer & Company in 1937, and would come into use after the war, in blown form for mattresses, furniture padding, and thermal insulation. It is also one of the components (in non-blown form) of the fiber spandex.
Epoxy - In 1939, IG Farben filed a patent for polyepoxide or epoxy. Epoxies are a class of thermoset plastic that form cross-links and cure when a catalyzing agent, or hardener, is added. After the war they would come into wide use for coatings, adhesives, and composite materials. Composites using epoxy as a matrix include glass-reinforced plastic, where the structural element is glass fiber, and carbon-epoxy composites, in which the structural element is carbon fiber. Fiberglass is now often used to build sport boats, and carbon-epoxy composites are an increasingly important structural element in aircraft, as they are lightweight, strong, and heat resistant.
PET, PETE, PETG, PET-P (polyethylene terephthalate)
Two chemists named Rex Whinfield and James Dickson, working at a small English company with the quaint name of the Calico Printer's Association in Manchester, developed polyethylene terephthalate (PET or PETE) in 1941, and it would be used for synthetic fibers in the postwar era, with names such as polyester, dacron, and Terylene.
PET is less gas-permeable than other low-cost plastics and so is a popular material for making bottles for Coca-Cola and other carbonated drinks, since carbonation tends to attack other plastics, and for acidic drinks such as fruit or vegetable juices. PET is also strong and abrasion resistant, and is used for making mechanical parts, food trays, and other items that have to endure abuse. PET films are used as a base for recording tape.
PTFE (polytetrafluoroethylene) (aka Teflon®)
One of the most impressive plastics used in the war, and a top secret, was polytetrafluoroethylene (PTFE), better known as Teflon, which could be deposited on metal surfaces as a scratch-proof and corrosion-resistant, low-friction protective coating. The polyfluoroethylene surface layer created by exposing a polyethylene container to fluorine gas is very similar to Teflon. A DuPont chemist named Roy Plunkett discovered Teflon by accident in 1938. During the war, it was used in gaseous-diffusion processes to refine uranium for the atomic bomb, as the process was highly corrosive. By the early 1960s, Teflon adhesion-resistant frying pans were in demand.
Polycarbonate - Lexan is a high-impact polycarbonate originally developed by General Electric. Makrolon® and Tuffak are tradenames high-impact polycarbonate plastic made by Plaskolite.
Biodegradable (Compostable) Plastics
Research has been done on biodegradable plastics that break down with exposure to sunlight (e.g., ultra-violet radiation), water or dampness, bacteria, enzymes, wind abrasion and some instances rodent pest or insect attack are also included as forms of biodegradation or environmental degradation. It is clear some of these modes of degradation will only work if the plastic is exposed at the surface, while other modes will only be effective if certain conditions exist in landfill or composting systems. Starch powder has been mixed with plastic as a filler to allow it to degrade more easily, but it still does not lead to complete breakdown of the plastic. Some researchers have actually genetically engineered bacteria that synthesize a completely biodegradable plastic, but this material, such as Biopol, is expensive at present. The German chemical company BASF makes Ecoflex, a fully biodegradable polyester for food packaging applications. Gehr Plastics has developed ECOGEHR, a full-range of Bio-Polymer Shapes distributed by Professional Plastics.
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PPS - 40% Glass-Filled (Generic)
PPS - Polyphenylene Sulfide (Generic) is available in Virgin (unfilled) or 40% Glass-Filled Grades
Linear polyphenylene sulphide is a partially crystalline material
that provides very high mechanical performance combined with
excellent resistance to heat and chemicals (continuous service
temperature resistance up to approximately + 464 °F), high
dimensional stability and creep strength. Its LOI is one of the
highest among polymers. Excellent hardness and rigidity are other
characteristics of PPS. By virtue of its strength and affordability,
it bridges the gap between the partially crystalline industrial plastics
and PEEK. Thanks to reinforcement with 40% glass fibres,
strengths are attained that are comparable with light metals.
Typical Applications:
Components in equipment construction, pump parts, fan elements, impellers, valve balls/seats/
seals, plastic parts and motor vehicle parts.
- We offer PPS and PPS-40GF rods from in 3/4" to 2" diameters.
- Also see Ryton® R4 (40% Glass-Filled PPS from Solvay)
- Ryton PPS 40% Glass
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Torlon® 5030
Torlon ® 5030 is 30% glass-reinforced, PAI that is typically injection-molded, but can also be compression-molded, OR EXTRUDED into basic shapes. It is ideal for higher load structural or electronic applications. Professional Plastics offers basic shapes on this page as EXTRUDED from Torlon 5030 Resin. Extruded Torlon 5030 offers the lowest CLTE (just 0.90 x 10-5) in a unidirectional pattern along the extrusion direction due to the natural alignment of the glass-fibers during the extrusion process. If a greater multi-directional stability is required, consider Torlon 5530 (compression-molded). Due to the random disbursement of the glass-fibers during the compression-molding process, Torlon 5530 provides greater multidirectional stability, yet less unidirectional stability.
- For compression-Molded Torlon 5530 Plates, see See Torlon 5530
The most cost-effective production method, but offering the least performance, is Injection-Molding. Torlon 5030 injection-molded parts are selected for smaller shapes or when the greatest degree of dimensional control is required. If you require injection-molded parts, please send us your drawing by e-mail to sales@proplas.com
Torlon 5030 is also becoming the material of choice for Frac Balls used in oil & gas exploration Click Here for Torlon 5030 Balls
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