全可回收亚麻和玻璃纤维增强聚合物复合材料对湿热老化的响应

On the Response to Hygrothermal Ageing of Fully Recyclable Flax and Glass Fibre Reinforced Polymer Composites.

作者信息

Das Subrata Chandra, Srivastava Chaman, Goutianos Stergios, La Rosa Angela Daniela, Grammatikos Sotirios

机构信息

ASEMlab-Laboratory of Advanced and Sustainable Engineering Materials, Group of Sustainable Composites, Department of Manufacturing and Civil Engineering, NTNU-Norwegian University of Science and Technology, 2815 Gjøvik, Norway.

出版信息

Materials (Basel). 2023 Aug 26;16(17):5848. doi: 10.3390/ma16175848.

DOI:10.3390/ma16175848

PMID:37687540

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10488882/

Abstract

The present work studies the response to hygrothermal ageing of natural fibre composites (NFCs) against synthetic fibre composites when using three different types of polymers as matrices. For ageing, coupons were fully immersed in distilled water at 23, 40, and 60 °C for a total ageing period of 56 days. Flax fibre-reinforced composites, using two recyclable polymer systems: (i) a bio-based recyclable epoxy and (ii) an acrylic-based liquid thermoplastic resin, were tested against conventional glass fibre-reinforced composites employing a synthetic (petroleum-based) epoxy. Different fibre/polymer matrix material combinations were tested to evaluate the effects of hygrothermal ageing degradation on the reinforcement, matrix, and fibre/matrix interface. The hygrothermal ageing response of unaged and aged composite coupons was assessed in terms of flexural and viscoelastic performance, physicochemical properties, and microscopy (SEM-Scanning Electron Microscopy).

摘要

本研究在使用三种不同类型聚合物作为基体时，考察了天然纤维复合材料（NFCs）相对于合成纤维复合材料对湿热老化的响应。为进行老化处理，试样完全浸泡在23℃、40℃和60℃的蒸馏水中，总老化时间为56天。使用两种可回收聚合物体系的亚麻纤维增强复合材料：（i）一种生物基可回收环氧树脂和（ii）一种丙烯酸基液态热塑性树脂，与采用合成（石油基）环氧树脂的传统玻璃纤维增强复合材料进行了测试对比。测试了不同的纤维/聚合物基体材料组合，以评估湿热老化降解对增强材料、基体以及纤维/基体界面的影响。通过弯曲和粘弹性性能、物理化学性质以及显微镜检查（扫描电子显微镜）对未老化和老化复合试样的湿热老化响应进行了评估。