Common engineering plastics and their characteristics

Engineering plastics and properties
Engineering plasticse Characteristics Applications
POM  1.Excellent wear-resistance and slippage.
2.High dimension stability.
3.High hardness and rigidity.
4.Excellent electrical insulation.
5.The working temperature can reach 100℃.
Due to its good dimension stability and excellent workability, POM has become a highly versatile engineering plastic with an extensive range of applications.
Delrin® is a POM material with better mechanical performance.
(Delrin® is the trademark for DuPont)
UPE  1.Low friction coefficient.
2.High slippage and low adhesion.
3.Excellent resistance against chemicals and weathering.
4.Low water absorption.
5.Excellent electrical properties.
Base on its good characteristics, the material is applied in various industries extensively.
PP  1.High heat tolerance and chemical stability.
2.Low density, light weight.
3.Hardness and strength.
4.Vulnerable against impact due to the fragility under 0℃.
5.Excellent electrical insulation.
PP materials contain excellent mechanical properties. They are not only lightweight, but also easy to weld, hence the frequent application as equipment parts in the chemical industry.
MC NYLON  1.Low internal stress.
2.Well wear-resistance.
3.High strength and hardness.
4.Well buffering property.
5.Capable of reaching relative humidity from long-term storage under the atmosphere.
Bearings and slipping components.
PI  1.Low friction coefficient, wear-resistance.
2.Resistant to chemical corrosion.
3.較高的拉伸強Greater tensile strength.
4.High thermal stability.
5.Well high/low-temperature tolerance between -270℃ and 300℃.
6.Excellent isolation and electrical insulation.
Even upon usage at 260℃, the PI material can still maintain ideal strength, dimension stability, and creep resistance. The workability from combining low wearing rate and zero lubrication makes PI material most suitable for friction and wear-resistant environment, where useful life is extended and the maintenance cost can be reduced further. Moreover, the characteristics of highly pure gas and low gas discharge make PI material most suitable for vacuum, aerospace, and semiconductor industries.
Vespel® is the trademark of PI material for DuPont.
PAI  1.Excellent mechanical performances with high tensile strength and fatigue resistance.
2.High-temperature tolerance and capable of continuous use over the long term under a high temperature of 250℃.
3.Outstanding wear-resistance.
4.Outstanding UV ray resistance.
5.Radiation resistant.
Due to the fundamental traits of high-temperature tolerance, dimension stability, and well performance in mechanical processing, the element is often used for manufacturing precision parts of highly technological equipment. Extensive application in the field of electrical components due to the well electrical insulation.
Torlon® PAI is the trademark for Solvay Group.
PCTFE  1.Low temperature tolerance of -205℃ up till 220℃.
2.Well chemical stability.
3.Low water absorption.
4.Excellent electrical characteristic.
5.Extremely low air permeability.
Applicable for an environment of ultra-low temperature, hence suitable to be utilized in aviation and flight vehicles.
PVDF  1.Greater tensile, compressive and impact strengths, but lower smoothness and electrical insulation comparing to fluorides of the same category.
2.With the high strength and toughness under low temperature, the light of such an element goes out automatically.
3.High chemical stability.
4.Corrosion resistance.
5.Well slippage and wear-resistance.
6.Well resistance against UV ray and weathering.
Applicable for corrosive fluid treatment, e.g. pipelines, pipe fittings. The natural flame-retardant characteristic makes the element applicable for fiber-optic cable and jacket.
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