我公司长期供应POM如下型号产品:
RTP Compounds EMI 860.5 POM
美国RTP
RTP Compounds 0899 X 87096 POM
RTP Compounds 800 AR 10 TFE 10 POM
RTP Compounds 800 AR 10 TFE 15 POM
RTP Compounds 800 AR 10 TFE 20 POM
RTP Compounds 800 AR 10 TFE 5 POM
RTP Compounds 800 AR 10 POM
RTP Compounds 800 AR 15 TFE 10 POM
RTP Compounds 800 AR 15 TFE 13 SI 2 POM
RTP Compounds 800 AR 15 TFE 15 POM
RTP Compounds 800 AR 15 TFE 20 UV POM
RTP Compounds 800 AR 15 TFE 20 POM
RTP Compounds 800 AR 15 POM
RTP Compounds 800 AR 5 DEL POM
RTP Compounds 800 AR 5 TFE 10 SI 2 POM
RTP Compounds 800 AR 5 TFE 10 SI 3 POM
RTP Compounds 800 AR 5 TFE 10 POM
RTP Compounds 800 AR 5 TFE 20 POM
RTP Compounds 800 AR 5 POM
RTP Compounds 800 AR TFE 10 POM
RTP Compounds 800 DEL UV POM
RTP Compounds 800 DEL POM
RTP Compounds 800 GB 10 TFE 15 POM
RTP Compounds 800 GB 10 POM
RTP Compounds 800 GB 15 POM
RTP Compounds 800 GB 20 TFE 15 POM
RTP Compounds 800 GB 20 TFE 20 POM
RTP Compounds 800 GB 20 POM
RTP Compounds 800 GB 25 DEL POM
RTP Compounds 800 GB 25 POM
RTP Compounds 800 GB 30 DEL POM
RTP Compounds 800 GB 30 TFE 10 POM
RTP Compounds 800 GB 30 Z POM
RTP Compounds 800 GB 30 POM
RTP Compounds 800 GB 40 POM
RTP Compounds 800 LP POM
RTP Compounds 800 MG 20 TFE 15 POM
RTP Compounds 800 MG 20 POM
RTP Compounds 800 MS 1 POM
RTP Compounds 800 MS 3 POM
RTP Compounds 800 MS 5 POM
RTP Compounds 800 SI 2 DEL POM
RTP Compounds 800 SI 2 HB POM
RTP Compounds 800 SI 2 UV POM
RTP Compounds 800 SI 2 Z POM
RTP Compounds 800 SI 2 POM
RTP Compounds 800 SI 4 POM
RTP Compounds 800 SI 5 POM
RTP Compounds 800 SI POM
RTP Compounds 800 TFE 10 DEL POM
RTP Compounds 800 TFE 10 LP POM
RTP Compounds 800 TFE 10 SI 2 DEL POM
RTP Compounds 800 TFE 10 SI 2 HB POM
RTP Compounds 800 TFE 10 SI 2 Z POM
RTP Compounds 800 TFE 10 SI 2 POM
RTP Compounds 800 TFE 10 POM
RTP Compounds 800 TFE 13 SI 2 POM
RTP Compounds 800 TFE 15 DEL POM
RTP Compounds 800 TFE 15 LP POM
RTP Compounds 800 TFE 15 SI 2 DEL POM
RTP Compounds 800 TFE 15 SI 2 HB POM
RTP Compounds 800 TFE 15 SI 2 Z POM
RTP Compounds 800 TFE 15 SI 2 POM
RTP Compounds 800 TFE 15 Z POM
RTP Compounds 800 TFE 15 POM
RTP Compounds 800 TFE 18 SI 2 DEL POM
RTP Compounds 800 TFE 18 SI 2 POM
RTP Compounds 800 TFE 2 DEL POM
RTP Compounds 800 TFE 2 UV POM
RTP Compounds 800 TFE 2 POM
RTP Compounds 800 TFE 20 DEL POM
RTP Compounds 800 TFE 20 LP POM
RTP Compounds 800 TFE 20 SI 2 POM
RTP Compounds 800 TFE 20 SI POM
RTP Compounds 800 TFE 20 UV POM
RTP Compounds 800 TFE 20 Z POM
RTP Compounds 800 TFE 20 POM
RTP Compounds 800 TFE 5 DEL POM
RTP Compounds 800 TFE 5 HB POM
RTP Compounds 800 TFE 5 SI 2 HB POM
RTP Compounds 800 TFE 5 SI 2 Z POM
RTP Compounds 800 TFE 5 SI 2 POM
RTP Compounds 800 TFE 5 Z POM
RTP Compounds 800 TFE 5 POM
RTP Compounds 800 UV POM
RTP Compounds 800 Z TFE 10 SI 2 POM
RTP Compounds 800 Z TFE 18 SI 2 POM
RTP Compounds 800 Z POM
RTP Compounds 800.5 TFE 10 POM
RTP Compounds 800.5 TFE 20 POM
RTP Compounds 800.5 UV POM
RTP Compounds 800.5 Z POM
RTP Compounds 800.5 POM
RTP Compounds 800 POM
RTP Compounds 801 CC TFE 20 POM
RTP Compounds 801 CC POM
RTP Compounds 801 DEL UV POM
RTP Compounds 801 DEL POM
RTP Compounds 801 GB 10 POM
RTP Compounds 801 GB 20 CC POM
RTP Compounds 801 SI 2 DEL POM
RTP Compounds 801 TFE 10 DEL POM
RTP Compounds 801 TFE 10 Z POM
RTP Compounds 801 TFE 10 POM
RTP Compounds 801 TFE 15 POM
RTP Compounds 801 TFE 20 SI 2 POM
RTP Compounds 801 TFE 20 POM
RTP Compounds 801 TFE 5 POM
RTP Compounds 801 UV POM
RTP Compounds 801 POM
RTP Compounds 802 CC POM
RTP Compounds 802 GB 10 POM
RTP Compounds 802 GB 20 POM
RTP Compounds 802 SI 2 DEL POM
RTP Compounds 802 SI 2 POM
RTP Compounds 802 TFE 10 POM
RTP Compounds 802 TFE 15 POM
RTP Compounds 802 POM
RTP Compounds 803 CC GB 20 POM
RTP Compounds 803 CC TFE 15 POM
RTP Compounds 803 CC POM
RTP Compounds 803 DEL POM
RTP Compounds 803 GB 20 TFE 15 POM
RTP Compounds 803 TFE 10 POM
RTP Compounds 803 TFE 12 POM
RTP Compounds 803 TFE 15 UV POM
RTP Compounds 803 TFE 15 POM
RTP Compounds 803 TFE 20 POM
RTP Compounds 803 TFE 5 SI 2 POM
RTP Compounds 803 TFE 5 POM
RTP Compounds 803 UV POM
RTP Compounds 803 Z DEL POM
RTP Compounds 803 POM
RTP Compounds 804 CC POM
RTP Compounds 804 SI 2 POM
RTP Compounds 804 TFE 10 POM
RTP Compounds 804 TFE 13 SI 2 POM
RTP Compounds 804 TFE 15 POM
RTP Compounds 804 TFE 7 POM
RTP Compounds 804 POM
RTP Compounds 805 CC TFE 5 POM
RTP Compounds 805 CC UV POM
RTP Compounds 805 CC POM
RTP Compounds 805 DEL POM
RTP Compounds 805 SI 2 HB POM
RTP Compounds 805 SI 2 POM
RTP Compounds 805 TFE 13 SI 2 POM
RTP Compounds 805 TFE 15 SI 2 POM
RTP Compounds 805 TFE 15 UV POM
RTP Compounds 805 TFE 15 Z POM
RTP Compounds 805 TFE 15 POM
RTP Compounds 805 TFE 5 SI 2 POM
RTP Compounds 805 TFE 5 POM
RTP Compounds 805 UV POM
RTP Compounds 805 Z POM
RTP Compounds 805 POM
RTP Compounds 805CC SI 2 POM
RTP Compounds 807 DEL POM
RTP Compounds 807 TFE 15 POM
RTP Compounds 807 POM
RTP Compounds 840 POM
RTP Compounds 841 DEL POM
RTP Compounds 841 Z POM
RTP Compounds 841 POM
RTP Compounds 842 Z POM
RTP Compounds 842 POM
RTP Compounds 843 DEL POM
RTP Compounds 843 Z POM
RTP Compounds 861 POM
RTP Compounds 876 POM
RTP Compounds 881 HB POM
RTP Compounds 881 SI 2 POM
RTP Compounds 881 TFE 10 DEL POM
RTP Compounds 881 TFE 10 SI 2 POM
RTP Compounds 881 TFE 10 POM
RTP Compounds 881 TFE 15 POM
RTP Compounds 881 TFE 18 SI 2 POM
RTP Compounds 881 TFE 5 POM
RTP Compounds 881 POM
RTP Compounds 882 DEL POM
RTP Compounds 882 TFE 10 SI 2 POM
RTP Compounds 882 TFE 10 POM
RTP Compounds 882 TFE 15 POM
RTP Compounds 882 POM
RTP Compounds 883 TFE 15 POM
RTP Compounds 883 TFE 20 POM
RTP Compounds 883 POM
RTP Compounds 884 DEL POM
RTP Compounds 885 DEL POM
RTP Compounds 885 SI 2 POM
RTP Compounds 885 TFE 13 SI 2 POM
RTP Compounds 885 TFE 15 POM
RTP Compounds 885 UV POM
RTP Compounds 885 POM
RTP Compounds 887 POM
RTP Compounds 899 X 120422 A POM
RTP Compounds 899 X 120422 E POM
RTP Compounds 899 X 120648 C POM
RTP Compounds 899 X 82676 F POM
RTP Compounds 899 X 85698 A POM
RTP Compounds 899 X 88188 POM
RTP Compounds 899 X 88199 POM
RTP Compounds 899 X 88353 A POM
RTP Compounds 899 X 90822 POM
RTP Compounds 899 X 93924 POM
RTP Compounds 899X86738C POM
RTP Compounds 899X86739C POM
RTP Compounds EMI 860.5 POM
RTP Compounds EMI 861 POM
RTP Compounds EMI 863 POM
RTP Compounds EMI 881 POM
RTP Compounds ESD 800 HB POM
RTP Compounds ESD 800 TFE 10 POM
RTP Compounds ESD 800 TFE 5 POM
RTP Compounds ESD 800 POM
RTP Compounds ESD 805 POM
RTP Compounds ESD C 880 TFE 10 POM
RTP Compounds ESD C 880 TFE 15 POM
RTP Compounds ESD C 880 POM
英文名称:Polyoxymethylene(Polyformaldehyde)
POM(聚甲醛树脂)定义:聚甲醛是一种没有侧链、高密度、高结晶性的线型聚合物。按其分子链中化学结构的不同,可分为均聚甲醛和共聚甲醛两种。两者的重要区别是:均聚甲醛密度、结晶度、熔点都高,但热稳定性差,加工温度范围窄(约10℃),对酸碱稳定性略低;而共聚甲醛密度、结晶度、熔点、强度都较低,但热稳定性好,不易分解,加工温度范围宽(约50℃),对酸碱稳定性较好。是具有优异的综合性能的工程塑料。有良好的物理、机械和化学性能,尤其是有优异的耐摩擦性能。俗称赛钢或夺钢,为第三大通用工程塑料。 适于制作减磨耐磨零件,传动零件,以及化工,仪表等零件。
合成树脂中的一种,又名聚甲醛树脂、POM塑料、赛钢料等;是一种白色或黑色塑料颗粒,具有高硬度、高钢性、高耐磨的特性。主要用于齿轮,轴承,汽车零部件、机床、仪表内件等起骨架作用的产品。
特点
(1)POM加工前可不用干燥,最好在加工过程中进行预热(80℃左右),对产品尺寸的稳定性有好处.
(2) POM的加工温度很窄(0~215℃),在炮筒内停留时间稍长或温度超过220℃时就会分解,产生刺激性强的甲醛气体.
(3) POM料注塑时保压压力要较大(与注射压力相近),以减少压力降.螺杆转速不能过高,残量要少;
(4) POM产品收缩率较大,易产生缩水或变形.POM比热大,模温高(80~100℃),产品脱模时很烫,需防止烫伤手指.
(5) POM宜在“中压、中速、低料温、较高模温”的条件下成型加工,精密制品成型时需用控制模温
(6)具高机械强度和刚性
(7)最高的疲劳强度
(8)环境抵抗性、耐有机溶剂性佳
(9)耐反覆冲击性强,良好的电气性质,复原性良好,具自已润滑性、耐磨性良好,尺寸安定性优.
应用
.可代替大部分有色金属、汽车、机床、仪表内件、轴承、紧固件、齿轮、弹簧片、管道、运输带配件、电水煲、泵壳、沥水器、水龙头等.
一般性能
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240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。
(1)POM是结晶型塑料,密度为1.42g/cm3,它的钢性很好,俗称“赛钢”.
(2)它具有耐疲劳、耐蠕变、耐磨、耐热、耐冲击等优良的性能,且摩擦系数小,自润滑性好.
(3)POM不易吸湿,吸水率为0.22~0.25%,在潮湿的环境中尺寸稳定性好,其收缩率为2.1%(较大),注塑时尺寸较难控制,热变形温度为172℃,聚甲醛有均聚甲醛两种,性能不同(均聚甲醛耐温性好一点).
力学性能
POM强度、刚度高,弹性好,减磨耐磨性好。其力学性能优异,比强度可达50.5MPa,比刚度可达2650MPa,与金属十分接近。POM的力学性能随温度变化小,共聚POM比均聚POM的变化稍大一点。POM的冲击强度较高,但常规冲击不及ABS和PC;POM对缺口敏感,有缺口可使冲击强度下降90%之多。POM的疲劳强度十分突出,10交变载荷作用后,疲劳强度可达35MPa,而PA和PC仅为28MPa。POM的蠕变性与PA相似,在20℃、21MPa、3000h时仅为2.3%,而且受温度的影响很小。POM的摩擦因数小,耐磨性好(POM>PA66>PA6>ABS>HPVC>PS>PC),极限PV值很大,自润滑性好。POM制品对磨时,高载荷作用时易产生类似尖叫的噪声。
电学性能
POM的电绝缘性较好,几乎不受温度和湿度的影响;介电常数和介电损耗在很宽的温度、湿度和频率范围内变化很小;耐电弧性极好,并可在高温下保持。POM的介电强度与厚度有关,厚度0.127mm时为82.7kV/mm,厚度为1.88mm时为23.6kV/mm。
环境性能
POM不耐强碱和氧化剂,对烯酸及弱酸有一定的稳定性。POM的耐溶剂性良好,可耐烃类、醇类、醛类、醚类、汽油、润滑油及弱碱等,并可在高温下保持相当的化学稳定性。吸水性小,尺寸稳定性好。
POM的耐候性不好,长期在紫外线作用下,力学性能下降,表面发生粉化和龟裂。
成形性
结晶料,熔融范围窄,熔融和凝固快,料温稍低于熔融温度即发生结晶。流动性中等。吸湿小,可不经干燥处理。
改性POM
⒈增强POM
主要增强材料为玻璃纤维、玻璃球或碳纤维等,并且玻璃纤维最常用,增强后的力学性能可提高2~3倍,热变形温度提高50℃以上。
⒉高润滑POM
在POM中加入石墨、F4、二硫化钼、润滑油及低分子量PE等,可提高其润滑性能。例如,在POM中加入5份F4,可降低摩擦因数60%,耐磨性提高1~2倍。再如,在POM中加入液体润滑油,可大幅度提高耐磨性和极限PV值。为提高由油的分散效果,需加入炭黑、氢氧化铝硫酸钡、乙丙橡胶等吸油载体。加入5%油POM的摩擦性提高72%,极限PV值可达3.9MPa·m/s(纯POM为0.213MPa·m/s),为其他工程塑料的3~20倍。