[1]蒋晶,李忠兴,何峻巍,等.增容剂对聚丙烯微纤复合材料微观形貌和性能的影响[J].郑州大学学报(工学版),2027,48(XX):1-8.[doi:10.13705/j.issn.1671-6833.2026.02.011]
　JIANG Jing,LI Zhongxing,HE Junwei,et al.Effect of Compatibilizer on Microstructure and Properties of Polypropylene Microfiber Composites[J].Journal of Zhengzhou University (Engineering Science),2027,48(XX):1-8.[doi:10.13705/j.issn.1671-6833.2026.02.011]
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增容剂对聚丙烯微纤复合材料微观形貌和性能的影响()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
48
期数:
2027年XX
页码:
1-8
栏目:
出版日期:
2027-12-10

文章信息/Info

Title:
Effect of Compatibilizer on Microstructure and Properties of Polypropylene Microfiber Composites
作者:
蒋晶 1,2 , 李忠兴 1,2 , 何峻巍 1,2 , 蔡泊志 2 , 李倩2
1 . 郑州大学 机械与动力工程学院,河南 郑州 450001;2. 郑州大学 微纳成型技术国家国际联合研究中心,河南 郑州 450001
Author(s):
JIANG Jing1,2, LI Zhongxing1,2, HE Junwei1,2, CAI Bozhi2, LI Qian2
1 . School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001, China; 2. Micro-Nano Molding Technology National and International Joint Research Center, Zhengzhou University, Zhengzhou 450001,China
关键词:
聚丙烯;  聚对苯二甲酸乙二醇酯;  原位成纤;  增容剂;  微观形貌;  力学性能
Keywords:
polypropylene;  polyethylene glycol terephthalate;  in-situ fibrillation;  compatibilizer;  microstructure;  mechanical properties
分类号:
TQ325. 1+4TB332
DOI:
10.13705/j.issn.1671-6833.2026.02.011
文献标志码:
A
摘要:
为解决聚丙烯(PP)/聚对苯二甲酸乙二醇酯(PET)原位微纤复合材料中PP基体与PET微纤两相相容性差导致的力学性能提升受限问题，基于“熔融共混-高速热拉伸”原位成纤技术，通过添加马来酸酐接枝聚丙烯增容剂(PP-g-MAH)成功制备出PP/PET/PP-g-MAH三相微纤复合材料，分析了增容剂含量对微纤复合材料微观形貌、结晶、流变及力学性能的影响。研究发现，增容剂会显著减小原位成纤前PET球形颗粒的相畴尺寸，改善界面相容性，原位成纤后使PET微纤拉伸比显著提升至14.2，得到包含最小直径202 nm且分散均匀的PP微纤复合材料。PET微纤协同少量增容剂会显著加速PP基体结晶速率、提升熔体黏弹性。相比纯PP拉伸性能，通过添加增容剂、原位成纤工艺分别使复合材料拉伸强度提升11.5%和24.5%，通过两者耦合作用可使强度提升30%，同时拉伸断裂能较两相共混物提高217%。最终证明通过增容剂协同原位成纤技术可实现PP基体的增强增韧。
Abstract:
To address the limitation in mechanical property enhancement caused by the poor compatibility between the polypropylene (PP) matrix and polyethylene terephthalate (PET) microfibers in in-situ microfibrillar PP/PET composites, an “in-situ fibrillation via melt blending-high speed hot stretching” technique was employed in this study, and ternary PP/PET/PP-g-MAH microfibrillar composites were successfully fabricated by introducing maleic anhydride-grafted polypropylene (PP-g-MAH) as a compatibilizer. The effects of compatibilizer content on the microstructure, crystallization behavior, rheological properties, and mechanical performance of the composites were systematically investigated. Results showed that the addition of PP-g-MAH significantly reduced the phase domain size of PET spherical particles before fibrillation and the interfacial compatibility was improved. After in-situ fibrillation, a high draw ratio of 14.2 was achieved by the PET microfibrils, and well-dispersed microfibrils with a minimum diameter of 202 nm were resulted. The synergistic effect of PET microfibrils and a small amount of compatibilizer significantly accelerated the crystallization rate of the PP matrix and the melt viscoelasticity was enhanced. Compared to neat PP, the tensile strength of the composites was improved by 11.5% and 24.5% through compatibilizer addition and in-situ fibrillation, respectively, and by up to 30% through their combined effect. Additionally, the tensile fracture energy was increased by 217% compared to conventional PP/PET blends. It is demonstrated by these findings that the PP matrix is effectively enhanced and toughened by the synergistic approach of using a compatibilizer in conjunction with in-situ fibrillation.

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备注/Memo

备注/Memo:
收稿日期:2025-12-16;修订日期:2025-01 -17
基金项目:国家自然科学基金联合重点项目 ( U1909219)
通信作者:蒋晶(1983— ) ,男,河南商丘人,郑州大学副教授,博士,从事聚合物复合材料结构和性能关系研究,E-mail:jiangjing@zzu.edu.cn。
更新日期/Last Update: 2026-03-31