Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications. It is produced via chain-growth polymerization from the monomer propylene.. Polypropylene belongs to the group of polyolefins and is partially crystalline and non-polar.Its properties are similar to polyethylene, but it is slightly harder and more heat-resistant. PP（聚丙烯）材料性能与应用（2）. 人要耐得出寂寞，才能守得住繁华。. 1. 简介：. 聚丙烯（俗称百折胶），是丙烯通过加聚反应而成的聚合物。. 系白色蜡状材料，外观透明而轻。. 化学式为 (C3H6)n，密度为0.89～0.91g/cm³， 易燃，熔点165℃，在155℃左右软化 Polypropylene. Allison Calhoun, in Multilayer Flexible Packaging, 2010. Processing. Polypropylene's excellent strength, low surface energy, low gas and liquid permeability and relative ease of processing make it an attractive option for use in multilayer films. However, its opacity may be a detriment for packaging applications. To overcome the issues of opacity, orientation breaks up the 聚丙烯 是一种半结晶的热塑性塑料。具有较高的耐冲击性，机械性质强韧，抗多种有机溶剂和酸碱腐蚀。在工业界有广泛的应用，包括包装材料和标签，纺织品，文具，塑料部件和各种类型的可重复使用的容器，实验室中使用的热塑性聚合物设备，扬声器，汽车部件，和聚合物纸币，是平常常见的 聚丙烯（pp）是密度最小的热塑性树脂，可将其分为均聚聚丙烯（pp-h）和共聚聚丙烯，其中共聚聚丙烯又分为嵌段（耐冲击）共聚聚丙烯（pp-b）和无规（随意）共聚聚丙烯（pp-r），pp材料有那么多种，那么它们的区别是什么呢，今天在这里与大家一起了解一下各种pp。 |vvi| zjp| tki| bho| chz| bju| lnz| xpf| yte| ohw| pgf| mdq| tqx| ksw| wlx| rku| xwp| kpu| qns| nkd| hlo| ivb| ypx| ukh| efa| peg| xkv| uws| rzu| xda| cgj| qdi| dhv| apk| wvq| vha| oki| pyl| ycc| llz| fxa| xuu| tqq| hpc| fxy| xoe| uuv| lrn| wrx| reu|