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本文研究了 BK-10玻璃纤维增强聚甲基丙烯酸甲酯和聚碳酸酯两种热塑性有机基复合材料中纤维与基体界面强度的测量、控制及其对复合材料性能的影响。用有机硅烷耦联剂涂覆纤维表面可以提高纤维与基体的界面强度并相应提高复合材料的力学性能。实验发现四种基体纤维界面破坏形式分别存在于界面强度强和弱的韧性和脆性基体复合材料体系中。选用折光率相匹配的基体和纤维,适当控制制备工艺可以制备出光学透明的复合材料。
In this paper, the measurement and control of interface strength between fiber and matrix in two thermoplastic organic matrix composites BK-10 glass fiber reinforced polymethylmethacrylate and polycarbonate were studied, and their effects on the properties of the composites were studied. Coating the fiber surface with an organosilane coupling agent can increase the interfacial strength between the fiber and the matrix and correspondingly improve the mechanical properties of the composite. It is found that the failure modes of the four kinds of matrix fibers exist in the ductile and brittle matrix composites system with strong and weak interface strength respectively. Selection of refractive index matching matrix and fiber, the appropriate control of the preparation process can be prepared optically transparent composite material.