碳纤维/SiO_2/聚苯并噁嗪复合材料的制备及性能研究  

Preparation and performance study on CF/SiO_2/PBOZ composites

作　　者：廖栋[1,2] 颜春 丁江平 李晓拓 刘俊龙[1] 

机构地区：[1]大连工业大学化工与材料学院,大连116034 [2]中科院宁波材料技术与工程研究所宁波市高分子材料重点实验室,宁波315201

出　　处：《化工新型材料》2011年第2期88-90,共3页New Chemical Materials

基　　金：宁波市自然科学基金(2010A610196;2009A610033)

摘　　要：以纳米SiO2/聚苯并噁嗪(PBOZ)为基体树脂,与碳纤维(CF)复合,制备了CF/SiO2/PBOZ复合材料,研究了纳米SiO2含量对其弯曲强度、层间剪切强度以及断面形貌的影响。结果表明,纳米SiO2含量为4%时,CF/SiO2/PBOZ复合材料的性能最好,材料的弯曲强度和层间剪切强度分别达到835和72.1MPa,比不含纳米SiO2的复合材料分别增加了14%和44%。将纳米SiO2含量为4%的CF/SiO2/PBOZ复合材料置于沸水中煮24h,处理前后的层间剪切强度和玻璃化转变温度均保持不变。The CF/SiO2/PBOZ composites were prepared by nano-SiO2/PBOZ as matrix. The mechanical properties and fractured surfaces of CF/SiO2/PBOZ composites were examined in detail. The results showed that the properties of CF/SiO2/PBOZ composites were the best when the nano-SiO2 content was 4%. The bending strength was 835 MPa, which increased 14% compared to the CF/PBOZ composite. The interlaminar shear strength （ILSS） was 72. 1 MPa, which increased 44% compared to the CF/PBOZ composite. CF/SiO2/PBOZ composites with 4% nano-SiO2 content can keep the ILSS and Tg invariable after water-boiled for 24h.

关 键 词：碳纤维 纳米SIO2 苯并噁嗪 复合材料 层间剪切性能 

分 类 号：TB332[一般工业技术—材料科学与工程]