Formaldehyde the scientific name polyoxyalkylene polyoxymethylene (POM), also known as polyoxymethylene (POM) poly race steel, special steel. It is based on formaldehyde as raw materials such as polymerization proceeds. POM-H (polyoxymethylene homopolymer), POM-K (polyoxymethylene copolymer) is the engineering thermoplastics of high density, high degree of crystallinity. Have good physical, mechanical and chemical properties, especially excellent rub resistance. POM is a high density without a side chain crystalline polymer having excellent overall performance. POM plastic picture
POM is a smooth surface, shiny hard and dense material, yellow or white, long-term use in the temperature range of -40 - 100 ° C. Its wear resistance and self-lubricating properties superior than most engineering plastics have good oil, peroxide-resistant performance. Very acid, the intolerant strong base and intolerance of ultraviolet radiation.
Physical properties
Polyoxymethylene a tensile strength of 70MPa, water absorption, dimensional stability, gloss, these properties than nylon, polyoxymethylene is a highly crystalline resin, in the thermoplastic resin is the most tenacious. With heat strength, flexural strength, fatigue resistance of high strength, wear resistance and excellent electrical properties. POM performance: performance numerical proportion of 1.43 melting point of 175 ° C tensile strength (yield) 70MPa Elongation (Yield) 15% (fracture) 15% of the impact strength (unnotched) 108KJ/m2 (notched) 7.6KJ/m2
