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发明公开
CN102850660A 一种改善抗冲共聚聚丙烯应力发白效应的方法 有权

一种改善抗冲共聚聚丙烯应力发白效应的方法
摘要：
本发明涉及一种改善抗冲共聚聚丙烯应力发白现象的方法；按重量份配比，将100份抗冲共聚聚丙烯粉料与0.05～0.20份抗氧剂168、0.025～0.100份抗氧剂1010、0.05～0.20份中和剂硬脂酸钙以及0.025～0.100份遮盖剂二氧化钛通过高速混合机混合均匀，然后挤出造粒得到应力发白现象改善的抗冲共聚聚丙烯；本方法不影响抗冲共聚聚丙烯原有力学性能和外观，添加量小，经济，成本低，并易于在石化企业聚丙烯聚合生产装置上实现。
摘要（英）：

The invention relates to a method for improving impact-resistant co-polypropylene stress whitening phenomena. The method includes uniformly mixing (by weight share) 100 co-polypropylene powder with 0.05-0.20 antioxidant 168, 0.025-0.100 antioxidant 1010, and 0.05-0.20 neutralizer calcium stearate, and 0.025-0.100 shielding agent titanium dioxide via a high-speed mixer, and extruding for granulation to obtain impact-resistant co-polypropylene with stress whitening phenomena improved. The method does not influence original mechanical property and appearance of impact-resistant co-polypropylene, and has the advantages of small adding amount and low cost. It is economic and easy to be realized in a petroleum and chemical enterprise PP polymerization production device.

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