聚甲醛是一种表面光滑、有光泽的硬而致密的材料，淡黄或白色，薄壁部分呈半透明。燃烧特性为容易燃烧，离火后继续燃烧，火焰上端呈黄色，下端呈蓝色，发生熔融滴落，有强烈的刺激性甲醛味、鱼腥臭。聚甲醛为白色粉末，一般不透明，着色性好，比重1.41-1.43克/立方厘米，成型收缩率1.2-3.0%，成型温度170-200℃，干燥条件80-90℃2小时。POM的长期耐热性能不高，但短期可达到160℃，其中均聚POM短期耐热比共聚POM高10℃以上，但长期耐热共聚POM反而比均聚POM高10℃左右。可在-40℃～100℃温度范围内长期使用。POM极易分解，分解温度为280度，分解时有刺激性和腐蚀性气体发生。故模具钢材宜选用耐腐蚀性的材料制作。

杜邦POM Delrin同系列型号介绍

Delrin 100 NC010 High Viscosity Acetal Homopolymer

Delrin 100AL NC010 Lubricated, High Viscosity Acetal Homopolymer

Delrin 100P BK602 High Viscosity Acetal Homopolymer

Delrin 100P NC010 High Viscosity Acetal Homopolymer

Delrin 100PE NC010 High Viscosity Acetal Homopolymer, Very Low Emissions

Delrin 100ST BK602 Super Tough, High Viscosity Acetal Homopolymer

Delrin 100ST NC010 Super Tough, High Viscosity Acetal Homopolymer

Delrin 100T BK602 Toughened, High Viscosity Acetal Homopolymer

Delrin 100T NC010 Toughened, High Viscosity Acetal Homopolymer

Delrin 100TL NC010 High Viscosity Acetal Homopolymer with 1.5% PTFE Micropowder

Delrin 111P BK402 High Viscosity Acetal Homopolymer, Enhanced Crystallization

Delrin 111P NC010 High Viscosity Acetal Homopolymer, Enhanced Crystallization

Delrin 127UV BK701 UV Stabilized Black Acetal Homopolymer, High Viscosity

Delrin 127UV NC010 UV Stabilized Acetal Homopolymer, High Viscosity

Delrin 150 NC010 High Viscosity Acetal Homopolymer for Extrusion

Delrin 150XV BK602 High Viscosity Acetal Homopolymer for Extrusion Void Free in Thick Sections

Delrin 150XV NC010 High Viscosity Acetal Homopolymer for Extrusion Void Free in Thick Sections

Delrin 1700P NC010 Ultra Low Viscosity Acetal

Delrin 1700SL NC010 Low viscosity acetal resin, low wear / low fr