本文目录一览:
- 1、PPS塑料有哪些性能和用途
- 2、pps是什么材质 pps简单介绍
- 3、pps是什么材料有没有毒
- 4、pps是什么材料
PPS塑料有哪些性能和用途
PPS塑料,即聚苯硫醚英文,是一种新型高性能热塑性树脂,具有机械强度高、耐高温、耐化学药品性、难燃、热稳定性好、电性能优良等优点。在电子、汽车、机械及化工领域均有广泛应用。
PPS塑料具有机械强度高、耐高温、高阻燃、耐化学药品性能强等优点;具有硬而脆、结晶度高、难燃、热稳定性好、机械强度较高、电性能优良等优点。PPS是工程塑料中耐热性更好的品种之一,热变形温度一般大于260度、抗化学性仅次于聚四氟乙烯,流动性仅次于尼龙。此外,它还具有成型收缩率小(约0.8%),吸水率低(约0.02%),防火性好、耐震动疲乏性好等优点。
PPS塑料特性
电绝缘性(尤其高频绝缘性)优良,白色硬而脆,跌落于地上有金属响声,透光率仅次于有机玻璃,着色性耐水性,化学稳定性良好。有优良的阻燃性,为不燃塑料。强度一般,刚性很好,但质脆,易产生应力脆裂,不耐苯.汽油等有机溶剂。
长期使用温度可达260度,在400度的空气或氮气中保持稳定。通过加玻璃纤维或其它增强材料改性后,可以使冲击强度大为提高,耐热性和其它机械性能也有所提高,密度增加到1.6-1.9,成型收缩率较小到0.15-0.25%适于 *** 耐热件.绝缘件及化学仪器.光学仪器等零件。
pps是什么材质 pps简单介绍
1、PPS是一种新型树脂材料。是新化学工艺的一个衍生品,PPS本质上属于塑料的一种,具有其它塑料所没有的换洗性质,比如说适合在高温的工业环境下工作,质地坚硬,不易折断,也不容易被点燃,总之,PPS材料适合在多种工业环境下使用。
2、广泛应用于电子行业,比如说手机数码等等数码产品,还有汽车等等。PPS的化学性质比较稳定,不容易与其他的化学材料进行反应,并且还具有优良的电性能。
pps是什么材料有没有毒
PPS是聚苯硫醚,一种塑料颗粒,这种属于高性能材料,无毒环保的。186-62670602有。
pps是什么材料
PPS是一种塑料。
pps是分子主链上含有苯硫基的热塑性工程塑料,属聚醚类塑料。它是于1968年在美国进行工业化生产,工业上主要生产 *** 有溶液聚合法和自缩聚法。
pps的分子结构可看出,它是以苯环和硫原子交替排列构成的线性或略带支链的高聚物,分子链规整体性强,由刚性苯环与柔性硫醚链连接起来的主键具有刚柔相济的特点,因此pps可以结晶,熔点高。
其次,由于苯环与硫原子形成共轭。且硫原子尚未处于饱和,经氧化后可使硫醚键变成亚砜基,或使相邻大分子形成氧桥支化或交联,使得热、氧稳定性十分突出;第三,由于硫原子的极性被苯环共轭及高结晶度的束缚,使pps呈现非极性或弱极性的特点。
因此pps的电绝缘性、介电性、及耐化学介质性也很突出;第四,由于pps与众多聚合物和添加剂有良好的相容性,可以采用多种手段进行改性,以提高其力学性能和其它性能。
扩展资料:
主要用途
pps的应用是以其优异的耐热性为中心,兼顾它的减摩自润滑性,化学稳定性、尺寸稳定性,阻燃性和电绝缘性等。
在化工行业pps可用作合成、输送、储存物料的反应罐、管道、阀门、化工泵等,在机械中心pps可 *** 叶轮、叶片、齿轮、偏心轮、轴承、离合器及耐磨零件。
pps的主要用途还是在电子电器领域,如 *** 变压器骨架,高频线圈骨架、插头、插座、接线架、接触器转鼓鼓片及各种精密零件等。
参考资料来源:百度百科--PPS塑胶原料
参考资料来源:百度百科--PPS塑料
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