Microwave induced solid-phase grafting of polyethylene fibers and fabrics for improved interficial properties

IF 6.9 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science Pub Date : 2025-06-30 DOI:10.1016/j.apsusc.2025.163937

Lanqing Wang, Sisi Liu, Huihu Huang, Fengjuan Shao, Yating Zhou, Jiaxin Guo, Huichao Liu, Jiali Yu, Caizhen Zhu, Jian Xu

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Abstract

The advancement of ultra-high molecular weight polyethylene (UHMWPE) reinforced composites is constrained by the smooth and inert surface. To improve the interfacial bonding characteristics of UHMWPE within the resin, the main chain may be grafted with polar functional groups to introduce polarity and chemical reactivity. This paper delineates a solid-phase procedure for polymer grafting achievable via microwave technology. Microwaves can heat maleic anhydride (MAH) and benzoyl peroxide (BPO), while polyethylene is transparent to them. Microwaves can selectively heat materials that absorb microwave radiation. The grafting reaction was demonstrated to be synthesized by the thermal effect induced by microwave irradiation. This process provides numerous advantages that are not present in conventional methods, including the superior mechanical properties of the grafted polymers. The results indicate that MAH grafting alters the surface morphology of UHMWPE fibers, enhances surface activity and wettability, stabilizes mechanical bonding, and provides sufficient reactive sites for the resin matrix to effectively improve interfacial characteristics. In comparison to the original UHMWPE fibers, the interfacial shear tension between UHMWPE/MAH fibers and epoxy resin increased by 77.7 %. Additionally, the UHMWPE/MAH fabric/rubber laminates exhibited a peel strength that was more than twice as high as that of untreated UHMWPE fabric-reinforced rubber composites.

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微波诱导固相接枝聚乙烯纤维及织物的界面性能改善

超高分子量聚乙烯（UHMWPE）增强复合材料的发展受到表面光滑和惰性的限制。为了改善UHMWPE在树脂中的界面键合特性，可以在主链上接枝极性官能团以引入极性和化学反应性。介绍了一种利用微波技术进行固相聚合物接枝的方法。微波可以加热马来酸酐（MAH）和过氧化苯甲酰（BPO），而聚乙烯对它们是透明的。微波可以选择性地加热吸收微波辐射的材料。结果表明，该接枝反应是由微波辐照引起的热效应合成的。该工艺提供了许多传统方法所不具备的优点，包括接枝聚合物优越的机械性能。结果表明，MAH接枝改变了UHMWPE纤维的表面形貌，增强了表面活性和润湿性，稳定了机械键合，为树脂基体提供了足够的反应位点，有效改善了界面特性。与原始UHMWPE纤维相比，UHMWPE/MAH纤维与环氧树脂之间的界面剪切张力提高了77.7% %。此外，UHMWPE/MAH织物/橡胶层压板的剥离强度是未经处理的UHMWPE织物增强橡胶复合材料的两倍以上。

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来源期刊

Applied Surface Science 工程技术-材料科学：膜

CiteScore

12.50

自引率

7.50%

发文量

3393

审稿时长

67 days

期刊介绍： Applied Surface Science covers topics contributing to a better understanding of surfaces, interfaces, nanostructures and their applications. The journal is concerned with scientific research on the atomic and molecular level of material properties determined with specific surface analytical techniques and/or computational methods, as well as the processing of such structures.