|本期目录/Table of Contents|

[1]李丽,张鹏,李艳芹,等.高流动抗冲共聚聚丙烯微观结构对其力学与光学性能的影响[J].石化技术与应用,2024,6:426-430.
　LI Li,ZHANG Peng,LI Yan-qin,et al.Effects of microstructure of high flow & impact resistant copolymerized polypropylene on its mechanical and optical properties[J].Petrochemical technology & application,2024,6:426-430.
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高流动抗冲共聚聚丙烯微观结构对其力学与光学性能的影响(PDF)

《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]

期数:
2024年6期
页码:
426-430
栏目:
出版日期:
2024-11-10

文章信息/Info

Title:
Effects of microstructure of high flow & impact resistant copolymerized polypropylene on its mechanical and optical properties
文章编号:
1009-0045（2024）06-0426-05
作者:
李丽1; 张鹏1; 李艳芹1; 樊洁1; 郭义1; 贺育成2; 赵东波2
1.中国石油石油化工研究院 兰州化工研究中心，甘肃 兰州 730060；2.中国石油兰州石化公司 生产技术部，甘肃 兰州 730060
Author(s):
LI Li1; ZHANG Peng2; LI Yan-qin1; FAN Jie1; GUO Yi1; HE Yu-cheng2; ZHAO Dong-bo2
1. Lanzhou Petrochemical Research Center，Petrochemical Research Institute，PetroChina，Lanzhou 730060，China； 2. Production Technology Department，Lanzhou Petrochemical Company，PetroChina，Lanzhou 730060，China
关键词:
高流动抗冲共聚聚丙烯; 力学性能; 光学性能; 橡胶相; 乙烯; 微观结构
Keywords:
high flow &;  impact resistant copolymerized polypropylene;  mechanical properties; optical properties; rubber phase; ethylene; microstructure
分类号:
TQ 325.1+4
DOI:
10.19909/j.cnki.ISSN1009-0045.2024.06.0426
文献标识码:
B
摘要:
利用扫描电子显微镜、差示扫描量热仪、偏光显微镜等分析仪器对3种高流动抗冲共聚聚丙烯（HFIPP）的力学、光学性能进行了表征及测试，探究了其微观结构与力学、光学性能之间的关联。结果表明：HFIPP抗冲击强度随橡胶相含量（质量分数，下同）的增加而增大，HFIPP-1的橡胶相含量仅比HFIPP-2高1.78个百分点，但HFIPP-1的常温抗冲击强度比HFIPP-2的增大了约17%；提高橡胶相的相对分子质量能够弥补其含量降低对HFIPP抗冲击强度的负面影响；在HFIPP生产时加入的成核剂，能够细化晶粒尺寸，提高结晶度，进而提高HFIPP的刚性；橡胶相以颗粒的形态分散在HFIPP中，且橡胶相中的乙烯质量分数越低，橡胶相粒径越小，HFIPP光泽度越高。
Abstract:
The mechanical and optical properties of three types of high flow & impact resistant copolymerized polypropylene (HFIPP) were characterized and tested by means of scanning electron microscopy，differential scanning calorimeter，polarizing microscope，and the correlation between their microstructure，mechanical and optical properties was explored. The results showed that the impact strength of HFIPP increased with the increase of rubber phase content (mass fraction，same below). The rubber phase content of HFIPP-1 was only 1.78 percentage points higher than that of HFIPP-2，but the impact strength of HFIPP-1 at room temperature increased by about 17% in comparison with that of HFIPP-2. Improving the relative molecular weight of the rubber phase could compensate for the negative effects on the impact strength of HFIPP along with the decrease of rubber phase content . The nucleating agent added during HFIPP production could refine the grain size and increase the crystallinity，thus enhanced the rigidity of HFIPP. The rubber phase dispersed within HFIPP in the form of particles，and the lower the mass fraction of ethylene within the rubber phase，then the smaller the rubber phase particle size and the higher the glossiness of HFIPP.

参考文献/References

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2024-11-10