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Considerations on detailed analysis and particle growth in high impact polypropylene particles

机译:对高抗冲聚丙烯颗粒进行详细分析和颗粒生长的考虑

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摘要

Detailed analysis of the dispersion of ethylene and propylene copolymer components in high-impact polypropylene particles was performed by the morphological observation, pore volume analysis, and microscopic Fourier transform infrared spectroscopy of SPring-8. The results of the morphological observation and pore volume distribution suggest that copolymer components were formed in particles in such a manner as to fill the gaps of fine homopolypropylene particles. The results of the analysis by microscopic Fourier transform infrared spectroscopy were that the distribution of the amount of ethylene in the particles was homogeneous and indicated that copolymer components were dispersed uniformly within the particles. Moreover, spots with high amounts of ethylene were formed on the particle surface, and when voids existed within the particle, spots with high amounts of ethylene were also formed on the void surface. The structure of the copolymer components existing locally on the surface was practically similar to the structure of the copolymer components within the particles.
机译:通过SPring-8的形态观察,孔体积分析和显微傅里叶变换红外光谱对高抗冲聚丙烯颗粒中乙烯和丙烯共聚物组分的分散性进行了详细分析。形态观察和孔体积分布的结果表明,共聚物组分以填充细均聚丙烯颗粒的间隙的方式形成在颗粒中。显微傅里叶变换红外光谱的分析结果是,颗粒中乙烯含量的分布是均匀的,表明共聚物组分均匀地分散在颗粒中。此外,在颗粒表面上形成有大量乙烯的斑点,并且当颗粒内存在空隙时,在空隙表面上也形成了具有大量乙烯的斑点。表面上局部存在的共聚物组分的结构实际上类似于颗粒内的共聚物组分的结构。

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