
聚对苯二甲酸丁二醇酯共混改性聚丙烯的耐热性能研究
方丽华, 李非凡, 董茹欣, 陈榛榛, 孙子瑞, 黄世俊, 苏志忠
聚对苯二甲酸丁二醇酯共混改性聚丙烯的耐热性能研究
Study on Heat Resistance of Polypropylene Blending Modified by Polybutylene Terephthalate
为提升聚丙烯(PP)的耐热温度,拓宽PP材料的应用范围,选择马来酸酐接枝氢化苯乙烯-丁二烯嵌段共聚物(SEBS-g-MAH)作为聚对苯二甲酸丁二醇酯(PBT)与PP共混体系的相容剂,并与马来酸酐接枝聚丙烯共聚物(PP-g-MAH)的作用对比,制备PP/PBT共混物。差示扫描量热仪(DSC)、扫描电镜(SEM)分析和力学性能测试结果表明,SEBS-g-MAH有效提升了PP与PBT的相容性,制备的PP/PBT/SEBS-g-MAH(80/20/15)共混物与纯PP相比,热变形温度提升15 ℃,缺口冲击强度提升50%左右。SEBS-g-MAH与PBT的端羧基反应,改变了PBT的分子结构对称性,使PBT的结晶能力下降,同时在PP与PBT之间起到反应增容作用,提升了共混物的综合性能。
In order to improve the heat resistance temperature of polypropylene (PP) and broaden the application range of PP material, maleic anhydride grafted hydrogenated styrene-butadiene block copolymer (SEBS-g-MAH) was selected as the compatibility agent of polybutylene terephthalate (PBT) and PP blending system, and the effect of compatibility agent of SEBS-g-MAH was compared with that of PP-g-MAH to prepare PP/PBT blends. Differential scanning calorimeter (DSC), scanning electron microscopy (SEM) analysis and mechanical properties test results showed that SEBS-g-MAH effectively improved the compatibility of PP and PBT. Compared with pure PP, the heat deflection temperature of the prepared PP/PBT/SEBS-g-MAH (80/20/15) blend was increased by 15 ℃, and the notch impact strength was increased by about 50%. The terminal carboxyl reaction of SEBS-g-MAH and PBT changed the molecular structure symmetry of PBT, reduced the crystallization ability of PBT, increased the reactive compatibilization between PP and PBT, and improved the comprehensive performance of the PP/PBT blend.
聚丙烯 / 聚对苯二甲酸丁二醇酯 / 耐热性能 / 共混改性
Polypropylene / Polybutylene terephthalate / Heat resistance / Blending modification
TQ325.14 / TB332
1 |
|
2 |
|
3 |
|
4 |
沈经纬,黄文艺,左胜武,等.PP/PET原位成纤复合材料的增强效应[J].复合材料学报,2004,21(4):33-39.
|
5 |
刘俊,谷琳,赵典,等.PP/PET/MFIAA/HET原位成纤复合材料的力学性能和熔体流动性[J].中国塑料,2008,22(11):28-32.
|
6 |
|
7 |
张义盛,吴德峰,曹健,等.PET/PP共混体系的熔融及非等温结晶行为[J].塑料科技,2007,35(1):28-31.
|
8 |
沈勇,李瑞海,何贵才.PP/PS合金的研制[J].塑料工业,2003,31(9):15-17, 41.
|
9 |
苏为力,吴旭阳,杨家昕,等.NBR-g-(GMA-co-St)的制备及其对PBT/PP复合材料的性能影响[J].化工新型材料,2023,51(1):118-122, 129.
|
10 |
孟东伟,曹长林,黄宝铨,等.PBT/PP/POE-g-GMA共混体系结晶性能和流变行为研究[J].中国塑料,2015,29(2):32-38.
|
11 |
绍凤娇,赖昂.增容剂对PBT/PP共混物结构性能的影响[J].塑料,2016,45(1):12-19.
|
12 |
张秀芹,朱磊,王笃金,等.PP/PP-g-MAH/PA6共混物结构与可纺性研究[J].高分子学报,2004(1):74-77.
|
13 |
|
14 |
|
15 |
|
16 |
|
17 |
|
18 |
周红军,林轩,尹国强,等.PP/POE-g-GMA/纳米SiO2复合材料性能研究[J].塑料,2009,38(1):74-76.
|
19 |
盛平厚,丁筠,韩朝阳,等.PBT/纳米铜粉抗菌复合材料制备及其纺丝应用[J].工程塑料应用,2020,48(10):35-38.
|
20 |
邹文奇,温变英,张扬.酯交换反应对PBT/PC/Al2O3复合材料导热性能的影响[J].高分子学报,2016(6):606-613.
|
21 |
程慧强,向阳,潘洋,等.聚碳酸酯/聚对苯二甲酸丁二醇酯交替层状复合材料的制备和冲击性能提升[J].高分子材料科学与工程,2023,39(7):123-130.
|
22 |
李锦春,俞强,林明德.PBT/PP-g-MAH 共混体系的形态结构及力学性能[J].现代塑料加工应用,1995,8(1):18-21.
|
23 |
|
24 |
|
25 |
|
26 |
顾书英,马广华,罗源.马来酸酐改性聚丙烯与尼龙66共混物的性能[J].塑料科技,2000,28(4):1-4.
|
27 |
|
28 |
魏无际,刘国智,潘恩黎,等.PS/PP反应性共混研究[J].中国塑料,1995,9(3):23-30.
|
29 |
高宁,叶苗,张景春,等.多单体接枝聚丙烯对PBT/PP 共混体系的形态结构及力学性能影响研究[J].高分子学报,2001,12(6):711-715.
|
30 |
陈兴江,罗筑,刘一春,等.PA6/PBT共混物的增容改性研究[J].塑料科技,2010,38(7):36-38.
|
/
〈 |
|
〉 |