超高分子量聚乙烯纤维表面纳米ZnO可控生长及其界面性能研究OA北大核心CSTPCD
Controllable growth and interfacial properties of ZnO nanoparticles on surface of ultra-high molecular-weight polyethylene fiber
首先在超高分子量聚乙烯(PE-UHMW)纤维表面形成聚多巴胺涂层,再通过水热法在纤维表面原位生长ZnO纳米阵列.对聚乙烯亚胺(PEI)介导的合成体系ZnO长径比、改性前后PE-UHMW纤维的界面性能进行了研究,并揭示了其增强机理.结果表明,ZnO纳米阵列的生长并未对纤维的热稳定性及结晶度产生影响,对纤维的损伤较小;当PEI浓度为3 mmol时,ZnO长径比最高;改性后纤维界面黏结强力提升了63.6%,层间剪切强度提升了70.14%.
A polydopamine coating was first formed on the surface of ultra-high molecular-weight polyethylene(PE-UHMW)fibers,followed by an in-situ growth of ZnO nano-arrays grown on the fiber surface using a hydrothermal meth-od.The aspect ratio of ZnO obtained from the PEI-mediated synthesis and the interfacial properties of PE-UHMW fibers before and after modification were investigated,and the enhancement mechanism was revealed.The results indicated that the growth of ZnO nano-arrays did not affect the thermal stability and crystallinity of the fibers,and there was less damage to the fibers.The system obtained the highest aspect ratio of ZnO at a PEI concentration of 3 mmol/mL.The in-terfacial bond strength and interlaminar shear strength of the fibers were enhanced by 63.6%and 70.14%,respective-ly,after the modification.
严成;李露露;陈天欢;郭帅;俞科静
连云港神特新材料有限公司,江苏 连云港 222000江南大学纺织科学与工程学院,江苏 无锡 214122
化学工程
超高分子量聚乙烯纤维表面改性聚多巴胺氧化锌纳米阵列
ultra-high molecular-weight polyethylene fibersurface modificationpolydopaminezinc oxide nano-array
《中国塑料》 2024 (005)
47-54 / 8
连云港市重大技术攻关-揭榜挂帅项目(CGJBGS2104)
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