摘要
采用烯丙基多羟基聚醚、ｏ，ｏ′—二烯丙基双酚Ａ对ＢＭＩ进行改性，详细研究了基体树脂及复合材料的性能。结果表明基体树脂具有良好的韧性和耐热性；预浸料可用丙酮溶液进行制作且有良好的铺贴性；玻璃布复合材料具有良好的力学性能。
Polyhydroxyl ether looked promising for modifying BMI to obtain good quality bismaleimide (BMI) matrix glass fabric composite, but it was not employed for such purpose owing to its defects (high melting point, high melt viscosity, bad reactivity with BMI, low solubility in BMI). We synthesized a new type of polyhydroxy ether, called allyl polyhydroxy ether, and succeeded in obtaining tougher and more heat resistant BMI matrix glass fabric composite. Allyl polyhydroxy ether possesses very good adhesive property. We used o,o′-diallyl phenol A in addition to allyl polyhydroxy ether to modify BMI and obtained the following good results: (1) perpolymer can be dissolved in acetone, (2) glass transformation temperature of cured resin T g >300℃ and its heat deformation temperature HDT>280℃, (3) impact strength of cured resin >15 kJ/m 2 and its flexural strength>115 MPa. Mechanical properties of BMI matrix glass fabric composite are outstanding: interlaminar toughness >50MPa, impact strength >170 kJ/m 2, flexural strength >585 MPa.
出处
《西北工业大学学报》
EI
CAS
CSCD
北大核心
1998年第3期348-352,共5页
Journal of Northwestern Polytechnical University
关键词
双马来酰亚胺
树脂基体
复合材料
APEI
bismaleimide (BMI), allyl polyhydroxy ether, composite, matrix resin
