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Engineering Resins - Characteristics and Uses of Polymer Plastics

Engineering resins is the term for a group of polymer plastics which exhibit a greater tendency to form crystals in their solid state than their more amorphous cousins. The additional level of long-range order at the molecular scale produces a different set of physical properties which suit the engineering plastic resins to a wide variety of applications that amorphous resins cannot fill. In general, engineering plastic resins are physically stronger and less flexible than amorphous resins and show greater resistance to fatigue, friction and wear.

Acrylonitrile Butadiene Styrene (ABS)

Products made from ABS plastic resin are found virtually everywhere; toys, office equipment, cars and trucks, kitchenware and even cosmetics rely on this engineering resin. This polymer adds the proven strength of plastics derived from acrylonitrile and styrene to the toughness of butadiene rubber.  ABS polymers resist the action of many acids and bases as well as alcohols and oils. Impact resistance, high-temperature stability and good electrical characteristics fill out the ABS engineering plastic resin resume and recommend it for extensive use in manufacturing.

PC water bottles

Polybutylene Terephthalate (PBT)

PBT engineering plastic resins are used to fabricate components found in computer keyboards, appliances, fluid handling systems, cars and trucks, electrical connectors, and industrial systems and controls. This product list is a testament to the versatility of the compound and is a direct result of its many outstanding characteristics. Stability and resistance to temperature extremes, along with a superior ability to be molded into complex or fine shapes makes PBT one of the most important engineering polymers.

Polycarbonate (PC)

Polycarbonate is a transparent engineering plastic resin that finds use in eyeglass lenses, compact discs and DVDs, and the protective coverings for vehicle headlight lamps. Polycarbonate is often used in electrical insulators, and in the manufacturing world, this tough, temperature resistant polymer is used to construct industrial equipment housings and windows that must withstand high temperatures and pressures. Capable of being machined on standard metalworking equipment without chipping or splitting, yet tougher than die-cast aluminum, polycarbonate remains a viable engineering plastic resin.

Whether the application demands low-temperature impact resistance and thermal stability or the ability to be easily processed and hold color well, engineering polymers have the characteristics needed to meet performance requirements while allowing manufacturers to keep production costs to acceptable levels. K Polymers creates engineering resins, plastics and polymer products that make the world go round.

PC / ABS regrind

PC / ABS regrind

PC/ABS

A true industrial thermoplastic, this engineering resins blend combines the most desirable properties of both materials; excellent features of ABS and the superior mechanical properties and heat resistance of polycarbonate. PC-ABS blends are widely used in automotive, electronics and telecommunications applications. This engineering plastic resins blend is ideal for the rapid production of prototypes, tooling and the direct (tool-less) manufacturing of production parts.

PC/PBT

A compounded engineering plastic resins blend of Polycarbonate and PBT. The PC contributes impact, stiffness and heat resistance, while the PBT contributes chemical resistance. The usual moisture sensitivity of the crystalline PBT is overcome by the PC in the blend. Some grades are made using PET instead of PBT engineering resin.

Nylon (NYL) polyamide

A group of linear polymers with repeating amide linkages along the backbone. These engineering plastic resins are produced by an amidation of diamines with dibasic acids, or polymerisation of amino acids. Nylon is strong and tough. It resists abrasion, fatigue and impact. Nylon offers excellent chemical resistance with negligence permeation rates when used with organic solvents. However, these engineering polymers have poor resistance to strong mineral acids, oxidizing agents and certain salts.

Nylon 6 or 66

Nylon 6 or 66 ( filled or unfilled)

Nylon 66 (Polyamide 66) resin

A thermoplastic resin with excellent mechanical, thermal and electrical properties. It is used as raw materials of fiber, film and engineering plastic. Engineering plastic resins are replacing the previous metals at a rapid pace. Nylon has a proven record of outstanding service in a wide range of applications for all industries.

Acetal (ACL) , or polyoxymethylene

A tough, strong material with excellent physical and mechanical properties. This engineering plastic resin is produced by polymerisation of formaldehyde. Acetal retains its dimensions and other properties at elevated temperatures. ACL engineering polymers offer excellent resistance to most organic solvents and fair to good resistance to strong acids and bases. Naturally opaque. Reinforced with glass fibres for increased stiffness when moulded into test tube racks.

Polyethylene Terephthalate G Copolymer (PETG)

Similar to many other engineering plastic resins. However, its glass-like clarity, toughness and excellent gas-barrier properties make it an outstanding choice for storing biologicals. Tests have shown PETG to be biologically equivalent to, or better than Type 1 borosilicate glass bottles for cell culture applications. In tests using a wide variety of cell lines, PETG engineering plastic resin was determined to be non-cytotoxic, and media stored in PETG bottles demonstrated proliferative and morphological characteristics comparable to control media. In fact, the PETG bottles allowed growth of good monolayers directly on the surface of the bottle. PETG can be sterilized with radiation or compatible chemicals but cannot be autoclaved. Chemical resistance is fair.

Polyphenylene Oxides (PPO)

This family of engineering plastic resins is characterized by outstanding dimensional stability at elevated temperatures, broad temperature-use range, outstanding hydrolytic stability and excellent dielectric properties over a wide range of frequencies and temperatures.

Polysulfone (PSF)

Like polycarbonate, PSF is clear, strong, non-toxic and extremely tough engineering plastic resin. PSF is less subject than PC to hydrolytic attack during autoclaving and has a natural straw-coloured cast. PSF is resistant to acids, bases, aqueous solutions, aliphatic hydrocarbons and alcohols. PSFengineering polymer is composed of phenylene units linked by three different chemical groups-isopropylidene, ether and sulfone. Each of the three linkages imparts specific properties to the polymer, such as chemical resistance, temperature resistance and impact strength.

Polyurethane (PUR)

Belongs to the class of thermosetting polymers and contains the characteristic urethane (O-CO-NH) group formed in the typical condensation polymerisation. PUR engineering plastic resins are useful in different types of products as for example elastomers. Polyurethane elastomers have extremely good abrasion resistance and hardness, combined with good elasticity and resistance to greases, oils and solvents.

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