含磷聚芳醚酮-双马来酰亚胺树脂(PAEK-P-BMI)及碳纤维/PAEK-P-BMI复合材料  

Phosphorus-containing polyaryletherketone-bismaleimide resin(PAEK-P-BMI) and carbon fiber/PAEK-P-BMI composites

作　　者：胡晓兰 刘文军 余荣禄 周川 李伟东 周玉敬 刘刚 益小苏 HU Xiaolan;LIU Wenjun;YU Ronglu;ZHOU Chuan;LI Weidong;ZHOU Yujing;LIU Gang;YI Xiaosu(Fujian Provincial Key Laboratory of Fire Retardant Materials,College of Materials,Xiamen University,Xiamen 361005,China;National Key Laboratory of Advanced Composites,AVIC Composite Technology Center,AVIC Composite Corporation Ltd.,Beijing 101300,China;State Key Laboratory of Advanced Forming Technology&Equipment,Beijing Jike Guochuang Lightweight Science Research Institute Co.Ltd.,Beijing 100083,China;Center for Advanced Low-dimension Materials,Donghua University,Shanghai 201602,China)

机构地区：[1]厦门大学材料学院,福建省防火阻燃材料重点实验室,厦门361005 [2]中航复合材料有限责任公司航空工业复合材料技术中心先进复合材料重点实验室,北京101300 [3]北京机科国创轻量化科学研究院有限公司先进成型技术与装备国家重点实验室,北京100083 [4]东华大学先进低维材料中心,上海201602

出　　处：《复合材料学报》2020年第9期2117-2124,共8页Acta Materiae Compositae Sinica

基　　金：航空科学基金(2016ZF68011);福建省科技创新平台建设计划(2014H2006);厦门大学石墨烯工业技术研究院资助项目(2014I2005)。

摘　　要：为提高树脂传递模塑(RTM)复合材料的整体韧性,结合"离位"复合增韧技术和RTM制造技术,应用新型热塑性含磷聚芳醚酮(PAEK-P)对碳纤维/双马来酰亚胺树脂(CF/BMI)复合材料进行增韧改性,研究了PAEK-P-BMI复合树脂的流变性能、分相行为及PAEK-P对CF/BMI复合材料韧性的影响。结果表明,分子链的刚性结构使PAEK-P具有高的耐热性,玻璃化转变温度达到268.8℃,PAEK-P在BMI树脂中的溶解性较差,PAEK-P-BMI复合树脂凝胶时间和黏度急增拐点时间受PAEK-P含量的影响很小;PAEK-P-BMI复合树脂在110℃/300 min条件下未出现相分离,但在后期的高温固化过程形成了分相结构,并在CF/PAEK-PBMI复合材料中保持了分相形貌;与CF/BMI复合材料相比,CF/PAEK-P-BMI复合材料的冲击后损伤投影面积降低了69%,冲击后压缩强度提高了16.6%,冲击凹坑深度减小了34.4%。In order to improve the toughness of resin transfer molding(RTM)composites,combining the"ex-situ"composite toughening technology and RTM processing,a novel thermoplastic phosphorus-containing polyaryletherketone(PAEK-P)was used to toughen the carbon fiber/bismaleimide resin(CF/BMI)composites.The rheological properties,phase separation behavior of the PAEK-P-BMI resin and the effect of PAEK-P upon the toughness of the CF/BMI composites were investigated.The results show that the PAEK-P resin has high heat resistance at the glass transition temperature of 268.8℃for its rigid structure.The gel time and viscosity increase inflection point time of the PAEK-P-BMI composite resin are little affected by the PAEK-P content because of its poor solubility in BMI resin.The PAEK-P-BMI composite resin shows no phase separation at 110℃/300 min.However,the phase separation structure is formed in the late high temperature curing process,and the phase separation morphology is maintained in the cured CF/PAEK-P-BMI composites.Compared with CF/BMI composites,the CF/PAEK-P-BMI composites have a 69%reduction in damage area after impact,a 16.6%increase in compressive strength after impact,and a 34.4%reduction in impact pit depth.

关 键 词：双马来酰亚胺树脂 碳纤维 复合材料 热塑性树脂 冲击后压缩性能 增韧 

分 类 号：TB332[一般工业技术—材料科学与工程]