文献类型：期刊文献

英文题名：Improved interfacial adhesion of carbon fiber-reinforced polydicyclopentadiene layered composite material by modification of norbornene derivatives

作者：Wang, Xian[1];Zhang, Zehan[1];Gao, Feng[1];He, Xuelian[1]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Multiphase Mat Chem Engn, Shanghai 200237, Peoples R China

年份：2024

卷号：64

期号：7

起止页码：3289

外文期刊名：POLYMER ENGINEERING AND SCIENCE

收录：;EI(收录号：20241916052890);WOS:【SCI-EXPANDED(收录号:WOS:001214919400001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (Grant No. 22278141).

语种：英文

外文关键词：carbon fibers; mechanical properties; polymer-matrix composite; surface treatments

摘要：Surface chemical grafting modifications of carbon fibers (CFs) using 5-(triethoxysilyl)norbornene (TOS), norbornene carboxylic acid tert-butyl ester (NB-TBE), and 5-norbornene-2,3-dicarboxylic anhydride (NA) improved interfacial interactions between CFs and poly(dicyclopentadiene) (PDCPD) resin. The ring-opening metathesis polymerization (ROMP) of DCPD, catalyzed by Grubbs catalyst II, enabled the fabrication of PDCPD/CF layered composite materials with resin and fibers tightly adhered. The optimal composite exhibited remarkable mechanical properties, with a tensile strength of 654.6 MPa and flexural strength of 510.7 MPa. Excellent thermal stability with a maximum weight loss rate in temperatures above 450 degrees C and good chemical resistance with a weight change of about 1% in both acidic and alkaline media highlight the promising potential of these materials for use in harsh environments. The simple yet efficient approach of TOS, NB-TBE, and NA-enhanced layered CF shows great promise as advanced composite materials for industrial applications.Highlights Norbornene derivatives such as TOS, NB-TBE, and NA are suitable modifiers for CF. ROMP of DCPD and norbornene group onto CFs, fabrication of PDCPD/CF composite materials. The composite exhibited remarkable interfacial adhesion and mechanical properties. The main process of CF modification using TOS, preparation of PDCPD/CF composite materials, and results of their mechanical properties. image