合成材料老化与应用2025，Vol.54Issue(3)：15-17,3.
蒸煮膜用聚丙烯的结构与性能研究
Research on the Structure and Properties of Polypropylene for Cooking Film
张美玲 1王素玉 1钱鑫 2张丁 1张泽鑫1
作者信息
- 1. 北京燕山石化高科技术有限责任公司,北京 102500||中国石油化工股份有限公司北京燕山分公司,北京 102500
- 2. 中国石油化工股份有限公司北京燕山分公司,北京 102500
- 折叠
摘要
Abstract
To address the technical bottleneck of simultaneously enhancing the impact resistance and optical properties of polypropylene for steam cooking films,a systematic study was conducted on the influence mechanism of the phase structure of impact copolymer polypropylene on its macroscopic properties.Commercially available impact copolymer polypropylenes GW-1 and GW-2 were selected as research subjects.Through multi-scale characterization techniques,the regulation laws of ethylene propylene rubber phase content and size distribution on material properties were revealed.It was found that the rubber phase size of GW-1 was less than 0.4 μm,resulting in excellent optical properties with a haze of only 2.1%(for 30 μm film),and GW-1 had a higher crystallinity and relatively lower ethylene propylene rubber content,thus having a higher flexural modulus.GW-2,on the other hand,exhibited higher impact resistance due to its higher ethylene propylene rubber content(16.2%)and larger rubber phase size(predominantly 0.4～0.6 μm).关键词
蒸煮膜/抗冲共聚聚丙烯/相态结构/性能Key words
cooking film/impact copolymerization polypropylene/phase structure/performance分类
化学化工引用本文复制引用
张美玲,王素玉,钱鑫,张丁,张泽鑫..蒸煮膜用聚丙烯的结构与性能研究[J].合成材料老化与应用,2025,54(3):15-17,3.
