相關標簽:哥倫比亞Polipropileno PP、吉林石化 PP、高六商事 PP塑料粒子、抗伽馬輻射 PP、超高分子量 PP、丁烯共聚單體 PP塑料粒子
聚丙烯分哪些種類?
以丙烯聚合而得到的聚合物稱為聚丙烯,英文縮寫為PP。聚丙烯顆粒外觀為白色蠟狀物,比聚乙烯更輕,透明性也略好。它易燃,燃燒時熔融滴落并發出石油氣味。依據側甲基在空間排列方向的差別,聚丙烯在主體構型上有等規、間規與無規物之分。工業聚丙烯以等規物為主94~98.5%,其等規物含量(等規度)常用不溶于沸騰正庚烷中的聚合物百分數(等規指數)來近似度量。國家標準GB/T2412-80規定了聚丙烯等規指數的測定方法。無規聚丙烯通常是在溶液法生產工業PP的過程中被分離出來的副產物。它是透明的橡膠狀物質,不能用來生產制品。常用于聚丙烯填充母料中作載體樹脂。大多數工業聚丙烯是僅由丙烯一種單體聚合而得到的,即為均聚聚丙烯。有時為了滿足各種性能需要,在聚丙烯合成過程中,常引入少量乙烯單體(或丁烯-1、已烯-1等)進行共聚,等到共聚聚丙烯。共聚聚丙烯中最重要的是乙烯與丙烯的共聚物。 。以上文獻若需轉載請備注出處:pbt塑料 //shanglikaiguan.cn/
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抗沖擊性,工業用的制品 | |
性能項目 | 試驗條件[狀態] | 測試方法 | 測試數據 | |
熔融指數 | 1.0 |
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