Hygroscopic and hydrothermal aging behaviors and performance deterioration mechanisms of jute yarn wound composites

IF 8.3 1区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composites Science and Technology Pub Date : 2024-09-30 DOI:10.1016/j.compscitech.2024.110891

Jiangjing Shi , Tianhao Shen , Wenfu Zhang , Hong Chen , Changlei Xia

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Abstract

The gyratory jute yarn wound composites (JYWCs) manufactured by the filament winding process show significant potential as eco-friendly alternatives to plastic pipes commonly used in outdoor settings. Ensuring the long-term service performance and durability of the JYWCs in hot and humid environments becomes critical. This study investigated the hygroscopic and hydrothermal aging behaviors of the JYWCs to elucidate their performance deterioration mechanisms. Compared with hygroscopic aging, long-term hydrothermal aging posed a more serious threat to the overall performance of the JYWCs. The jute yarns in the JYWCs experienced swelling, shrinkage, and degradation due to hygroscopic and hydrothermal aging, leading to a 47.4 % and 161.5 % increase in the void volume fraction of the JYWCs, respectively. The deterioration in the mechanical properties of the JYWCs was attributed to the attenuation of jute yarn properties, debonding of the fiber-resin matrix interface, and an increase in voids within the composites. Improving the manufacturing process to minimize voids in the JYWCs and control the pathways for moisture absorption is a highly effective strategy to enhance their long-term performance and durability.

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黄麻纱缠绕复合材料的吸湿和水热老化行为及性能劣化机理

通过长丝缠绕工艺制造的回旋黄麻纱缠绕复合材料（JYWC）作为户外常用塑料管道的环保替代品，显示出巨大的潜力。确保 JYWCs 在高温潮湿环境中的长期使用性能和耐用性变得至关重要。本研究调查了 JYWC 的吸湿老化和水热老化行为，以阐明其性能劣化机制。与吸湿老化相比，长期水热老化对 JYWC 的整体性能构成了更严重的威胁。由于吸湿老化和水热老化，JYWC 中的黄麻纱经历了膨胀、收缩和降解，导致 JYWC 的空隙体积分数分别增加了 47.4% 和 161.5%。JYWCs 机械性能的下降归因于黄麻纱性能的衰减、纤维-树脂基体界面的脱粘以及复合材料内部空隙的增加。改进生产工艺以尽量减少 JYWCs 中的空隙并控制吸湿途径，是提高其长期性能和耐用性的一项非常有效的策略。

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来源期刊

Composites Science and Technology 工程技术-材料科学：复合

CiteScore

16.20

自引率

9.90%

发文量

611

审稿时长

33 days

期刊介绍： Composites Science and Technology publishes refereed original articles on the fundamental and applied science of engineering composites. The focus of this journal is on polymeric matrix composites with reinforcements/fillers ranging from nano- to macro-scale. CSTE encourages manuscripts reporting unique, innovative contributions to the physics, chemistry, materials science and applied mechanics aspects of advanced composites. Besides traditional fiber reinforced composites, novel composites with significant potential for engineering applications are encouraged.