期刊
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
卷 43, 期 12, 页码 2249-2255出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2012.07.025
关键词
Polymer-matrix composites; Thermal properties; Fracture toughness; Mechanical testing
In this work, hyperbranched poly(resorcinol borate) (HPRB) was introduced to bis-benzoxazine (BF-a) resin to prepare a modified BF-a (mBF-a) resin with lower curing temperature, good thermal resistance and mechanical properties. The cure reaction of BF-a was catalyzed by the phenol groups in HPRB which facilitate the ring-opening process of BF-a. The char yield of mBF-a resin was increased due to the rigid backbone and boron element of HPRB. The mBF-a resin matrix composite reinforced with high silica glass cloths had excellent mechanical properties which may be benefited from the high toughness of mBF-a resin and good interfacial adhesion of the composite. (c) 2012 Elsevier Ltd. All rights reserved.
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