Tenac? POM homopolymer is a linear polymer with no side chains, high density and high crystallinity. According to the different chemical structures in its molecular chain, it can be divided into homopolyoxymethylene and copolymerized polyoxymethylene. The important differences between the two are: the density, crystallinity and melting point of homopolyoxymethylene are high, but the thermal stability is poor, the processing temperature range is narrow (about 10 ℃), and the stability to acid and alkali is slightly lower; while the density, crystallinity and melting point of polyformaldehyde copolymer The melting point and strength are low, but the heat stability is good, it is not easy to decompose, the processing temperature range is wide (about 50 ℃), and the acid and alkali stability is good. It is an engineering plastic with excellent comprehensive properties. Good physical, mechanical and chemical properties, especially excellent friction resistance
Main properties: (1) Mechanical properties: POM has high strength and rigidity, good elasticity, and good wear resistance. Its mechanical properties are excellent, the specific strength can reach 50.5MPa, and the specific stiffness can reach 2650MPa, which is very close to that of metals. (2) Electrical properties: POM has good electrical insulation and is hardly affected by temperature and humidity; The electrical loss changes little in a wide range of temperature, humidity and frequency; the arc resistance is excellent, and can be maintained at high temperature (3) Environmental performance: POM is not resistant to strong alkalis and oxidants, and has certain resistance to alkene and weak acids. stability. POM has good solvent resistance, can resist hydrocarbons, alcohols, aldehydes, ethers, gasoline, lubricating oil and weak alkali, etc., and can maintain considerable chemical stability at high temperatures. Small water absorption, good dimensional stability (4) Formability: crystallization material, narrow melting range, fast melting and solidification, and crystallization occurs when the material temperature is slightly lower than the melting temperature. Medium mobility. Small moisture absorption, without drying treatment
Asahi Kasei Plastics Tenac 7010 Physical Properties Table Parameters
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