Effect of polyurethane sizing agent on interface properties of carbon fiber reinforced polycarbonate composites

被引：19
|
作者：
Zhang, Weisu [1 ]
Yang, Changling [1 ]
Yao, Lili [2 ]
Li, Zhihao [2 ]
Li, Shengxia [1 ]
Lu, Yonggen [2 ]
机构：
[1] Donghua Univ, Coll Chem Chem Engn & Biotechnol, Shanghai 201620, Peoples R China
[2] Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2019年 / 136卷 / 38期
关键词：
coatings; composites; fibers; surfaces and interfaces; thermoplastics; SURFACE-TREATMENT; MECHANICAL-PROPERTIES; TRANSESTERIFICATION; ADHESION; DISPERSIONS; DEGRADATION; EPOXY;
D O I：
10.1002/app.47982
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
This work is aimed at investigating how molecule structure of polyurethanes (PUs) as sizing agents influence the interface properties of carbon fiber (CF) reinforced polycarbonate (PC) composites. Effects of four PUs as sizing agents for CF on the interlaminar shear strength (ILSS) of CF reinforced PC composites are investigated. It is found that the three PUs except PC-PU as sizing agents on oxidized CF (OCF) made the ILSS of their reinforced PC composites increase up to 62.9 MPa by more than 24.8%. The chemical interaction between PU sizing agents and CF are attributed to high reactivity of isocyanate, but carbonate groups on PC-PU may have a chain unzipping reaction due to active groups on the surface of OCF. The chemical interaction between PU sizing agents and PC are attributed to transesterification. As a result, PUs containing isocyanate or polyester groups are ideal sizing agents for CF reinforced PC composites. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47982.
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页数：10
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