POMM90-04 工程塑料 (CAS No.None)
- 物化性质
- 聚甲醛是一种高结晶性热塑性工程塑料，密度和结晶度较高，熔点明显，达到熔点后熔体粘度迅速下降。均聚物热稳定性较差，加工温度范围窄（约10℃），对酸碱稳定性略低；共聚物热稳定性好，不易分解，加工温度范围宽（约50℃）。具有很低的摩擦系数、优异的耐磨性和几何稳定性，低温下韧性好，抗蠕变、抗冲击，吸水性小（0.2%~0.5%）。收缩率较高，可达2%~3.5%。铜是POM降解催化剂，接触熔体的部位应避免使用铜或铜材料。
- 技术参数
- 熔点明显，达到熔点后熔体粘度迅速下降，加工温度范围约10℃（均聚物）至50℃（共聚物）。 高结晶度导致收缩率较高，可达2%~3.5%，不同增强型材料收缩率有所差异。 吸水率一般为0.2%~0.5%，通常不需干燥即可加工，潮湿原料需在80℃以上干燥2小时以上。 长期使用温度为-40℃~100℃，具有低摩擦系数和良好的几何稳定性。 具有优异的抗张强度、弯曲强度、耐疲劳强度、耐磨性和电性能，力学性能接近金属。
English description（英文原文，共 2090 字符）
Product Name:POMM90-04 Engineering Plastic
English Name:Polyacetal Resin (POM)
CAS No.:9002-81-7
Aliases:Polyoxymethylene, Acetal Resin, Polyacetal, POM
Molecular Formula:(CH2O)n
Physical Properties:Polyacetal is a highly crystalline thermoplastic engineering plastic with relatively high density and crystallinity. It has a distinct melting point, and once the melting point is reached, melt viscosity drops rapidly. The homopolymer has poorer thermal stability and a narrow processing temperature range (about 10°C), with slightly lower resistance to acids and alkalis; the copolymer has good thermal stability, is not easily decomposed, and has a wide processing temperature range (about 50°C). It features very low friction coefficient, excellent wear resistance and geometric stability, good toughness at low temperatures, resistance to creep and impact, and low water absorption (0.2%-0.5%). Shrinkage is relatively high, up to 2%-3.5%. Copper acts as a degradation catalyst for POM, so contact between copper or copper materials and the melt should be avoided.
Uses:Used for manufacturing electronic and electrical components (such as washing machine parts, juice machine timers), automotive parts (handlebars, electric window parts), mechanical parts (gears, handles, screws), toys, as well as pipe valves, pump housings, and lawn equipment.
Technical Specifications:
Distinct melting point, melt viscosity drops rapidly after melting, processing temperature range is about 10°C (homopolymer) to 50°C (copolymer).
High crystallinity results in relatively high shrinkage, up to 2%-3.5%, varying with different reinforced grades.
Water absorption is generally 0.2%-0.5%, usually no drying is required before processing, but wet materials need to be dried above 80°C for more than 2 hours.
Long-term service temperature ranges from -40°C to 100°C, with low friction coefficient and good geometric stability.
Excellent tensile strength, flexural strength, fatigue resistance, wear resistance and electrical properties, with mechanical properties approaching those of metals.
English Name:Polyacetal Resin (POM)
CAS No.:9002-81-7
Aliases:Polyoxymethylene, Acetal Resin, Polyacetal, POM
Molecular Formula:(CH2O)n
Physical Properties:Polyacetal is a highly crystalline thermoplastic engineering plastic with relatively high density and crystallinity. It has a distinct melting point, and once the melting point is reached, melt viscosity drops rapidly. The homopolymer has poorer thermal stability and a narrow processing temperature range (about 10°C), with slightly lower resistance to acids and alkalis; the copolymer has good thermal stability, is not easily decomposed, and has a wide processing temperature range (about 50°C). It features very low friction coefficient, excellent wear resistance and geometric stability, good toughness at low temperatures, resistance to creep and impact, and low water absorption (0.2%-0.5%). Shrinkage is relatively high, up to 2%-3.5%. Copper acts as a degradation catalyst for POM, so contact between copper or copper materials and the melt should be avoided.
Uses:Used for manufacturing electronic and electrical components (such as washing machine parts, juice machine timers), automotive parts (handlebars, electric window parts), mechanical parts (gears, handles, screws), toys, as well as pipe valves, pump housings, and lawn equipment.
Technical Specifications:
Distinct melting point, melt viscosity drops rapidly after melting, processing temperature range is about 10°C (homopolymer) to 50°C (copolymer).
High crystallinity results in relatively high shrinkage, up to 2%-3.5%, varying with different reinforced grades.
Water absorption is generally 0.2%-0.5%, usually no drying is required before processing, but wet materials need to be dried above 80°C for more than 2 hours.
Long-term service temperature ranges from -40°C to 100°C, with low friction coefficient and good geometric stability.
Excellent tensile strength, flexural strength, fatigue resistance, wear resistance and electrical properties, with mechanical properties approaching those of metals.
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常见问题
- POMM90-04 工程塑料的 CAS 号是多少？
- POMM90-04 工程塑料的 CAS 号是 None。
- POMM90-04 工程塑料的分子式和分子量是什么？
- POMM90-04 工程塑料的分子式为 (CH2O)n。
- POMM90-04 工程塑料的英文名称是什么？
- POMM90-04 工程塑料的英文名称为 Polyacetal Resin (POM)。
- POMM90-04 工程塑料还有哪些别名？
- POMM90-04 工程塑料又称 聚甲醛、聚氧亚甲基、均聚甲醛、POM。
- POMM90-04 工程塑料有哪些供应商和生产厂家？
- 掌上化工当前收录 1 条POMM90-04 工程塑料供应报价，来自 1 家供应商，可按地区、纯度、级别筛选对比。
- POMM90-04 工程塑料的供应商主要分布在哪些地区？
- POMM90-04 工程塑料的供应商主要分布在 上海市（1 条） 等地。
- POMM90-04 工程塑料有哪些级别可选？
- 平台上POMM90-04 工程塑料的供应级别包括 工业级。
- POMM90-04 工程塑料的报价单位是什么？
- POMM90-04 工程塑料的报价单位主要有 千克。
- 哪里可以查到POMM90-04 工程塑料的价格？
- 掌上化工POMM90-04 工程塑料产品页汇总了各供应商的最新报价与规格，地址：/chemicals/pomm90-04-gong-cheng-su-liao/。部分供应商价格为电议，可通过页面上的询价功能直接获取。
以上信息由平台根据收录的产品数据自动生成，数据更新时间 。 价格与库存由供应商自行发布，实际交易请以询价结果为准。
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