深圳大学学报（理工版）2024，Vol.41Issue(4)：480-489,10.DOI:10.3724/SP.J.1249.2024.04480
超高分子量聚乙烯纤维表面金属化改性及应用
Surface metallization and application of ultra-high molecular weight polyethylene fiber
摘要
Abstract
Ultra-high molecular weight polyethylene(UHMWPE)fibers and fabrics suffer from weak interfacial bonding with composite matrix due to their chemically inert surface and high crystallinity,thereby affecting the performance of composite materials.In order to enhance the surface activity of UHMWPE fiber,we propose a method involving electroless deposition of copper metallization modification(UHMWPE-Cu)of UHMWPE fiber.We examine the effects of metal coating on the morphology,crystal structure,surface roughness and electrical conductivity of UHMWPE fibers.Additionally,we evaluate the interfacial bonding performance and puncture resistance of UHMWPE-Cu with polyurethane resin matrix.The results show that metallization enhances fiber conductivity,reaching up to 660.79 S/cm.Moreover,metallization increases the surface activity of the fiber,thereby improving the interfacial adhesion with the resin matrix.UHMWPE fiber-reinforced polyurethane composites exhibit a 108% increase in peeling strength compared with unmodified fiber samples.Furthermore,metallizied UHMWPE fibers significantly improve puncture resistance of the composites,showing a 35% improvement compared with unmodified samples.Metallization also greatly enhances the electromagnetic shielding performance of composite materials,achieving up to 53 dB,surpassing the qualified electromagnetic interference intensity value(20 dB)for shielding applications.Therefore,the surface metallization of UHMWPE fiber has a broad application prospect in electromagnetic shielding.关键词
复合材料/超高分子量乙烯纤维/无电沉积/金属化/界面黏接性能/电磁屏蔽性能Key words
composite material/ultra-high molecular weight polyethylene fiber/electroless deposition/metallization/interface bonding property/electromagnetic shielding performance分类
化学化工引用本文复制引用
于佳立,陈胜男,姚平平,秦佳莹,徐坚..超高分子量聚乙烯纤维表面金属化改性及应用[J].深圳大学学报（理工版）,2024,41(4):480-489,10.基金项目
National Natural Science Foundation of China(22175121) （22175121）
Guangdong Key Areas Research and Development Foundation(2019B010929002) 国家自然科学基金资助项目(22175121) （2019B010929002）
广东省重点领域研发计划资助项目(2019B010929002) （2019B010929002）
