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一、塑料—橡胶共混体系概述对实际应用的许多聚合物本身而言都是多相的。如聚丙烯,它是部分结晶聚合物,即由90-97%全同立构组成的晶态结构和无规立构组成的非晶态结构所形成的两相结构。随加工成型条件的不同,聚丙烯的结晶度一般大于50%,其结晶态区域的熔点为176℃,而非晶态
First, the plastic - rubber blend system overview Many polymers for practical applications are heterogeneous. Such as polypropylene, which is a partially crystalline polymer, a two-phase structure formed by an amorphous structure consisting of 90-97% isotactic crystalline structure and atactic composition. With the processing of different molding conditions, the polypropylene is generally greater than 50% crystallinity, the melting point of its crystalline state of 176 ° C, and amorphous