Distribution of carbon black in semicrystalline polypropylene studied by transmission electron microscopy

被引：20

作者：

Feng, JY ^{[1
]}

Li, JX ^{[1
]}

Chan, CM ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Chem Engn, Adv Engn Mat Facil, Kowloon, Hong Kong, Peoples R China

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2002年 / 85卷 / 02期

关键词：

polypropylene; carbon black; amorphous layer; transmission electron microscopy; semicrystalline polymers;

D O I：

10.1002/app.10611

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polypropylene (PP) samples filled with different carbon blacks (CB) were prepared by the conventional melt-mixing method. The distribution of the CB in the PP matrix was investigated by using the RuO4 vapor-staining technique and transmission electron microscopy (TEM). Our results indicate that amorphous regions of PP are sandwiched between the crystalline lamellae. The thickness of individual amorphous layers is a few nanometers. The amorphous region was measured to be about 45 wt % using a differential scanning calorimeter (DSC). The thickness of the lamellae is much smaller than the dimensions of the CB particles, and the CB particles or aggregates are dispersed inside the spherulites. There is a thin layer of amorphous PP encapsulating the CB particles and aggregates. (C) 2002 Wiley Periodicals, Inc.

引用

页码：358 / 365

页数：8

共 20 条

[1] FLOW INDUCED POLYMER-FILLER INTERACTIONS - BOUND POLYMER PROPERTIES AND BOUND POLYMER-FREE POLYMER PHASE-SEPARATION AND SUBSEQUENT PHASE INVERSION DURING MIXING [J].