废旧发泡聚丙烯作为再生基体对红麻纤维/聚丙烯复合材料弯曲、冲击和热变形温度性能的影响。

Effects of Waste Expanded Polypropylene as Recycled Matrix on the Flexural, Impact, and Heat Deflection Temperature Properties of Kenaf Fiber/Polypropylene Composites.

作者信息

Kim Junghoon, Cho Donghwan

机构信息

Department of Polymer Science and Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk 39177, Korea.

出版信息

Polymers (Basel). 2020 Nov 2;12(11):2578. doi: 10.3390/polym12112578.

DOI:10.3390/polym12112578

PMID:33147857

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7693595/

Abstract

Waste Expanded polypropylene (EPP) was utilized as recycled matrix for kenaf fiber-reinforced polypropylene (PP) composites produced using chopped kenaf fibers and crushed EPP waste. The flexural properties, impact strength, and heat deflection temperature (HDT) of kenaf fiber/PP composites were highly enhanced by using waste EPP, compared to those by using virgin PP. The flexural modulus and strength of the composites with waste EPP were 98% and 55% higher than those with virgin PP at the same kenaf contents, respectively. The Izod impact strength and HDT were 31% and 12% higher with waste EPP than with virgin PP, respectively. The present study indicates that waste EPP would be feasible as recycled matrix for replacing conventional PP matrix in natural fiber composites.

摘要

废弃的发泡聚丙烯（EPP）被用作回收基体，用于制备由切碎的红麻纤维和粉碎的EPP废料制成的红麻纤维增强聚丙烯（PP）复合材料。与使用纯PP相比，使用废弃EPP可显著提高红麻纤维/PP复合材料的弯曲性能、冲击强度和热变形温度（HDT）。在相同红麻含量下，含废弃EPP的复合材料的弯曲模量和强度分别比含纯PP的复合材料高98%和55%。含废弃EPP的复合材料的悬臂梁冲击强度和HDT分别比含纯PP的复合材料高31%和12%。本研究表明，废弃EPP作为回收基体替代天然纤维复合材料中的传统PP基体是可行的。