采用活性单体原位聚合方法,由2,3,3',4'-联苯四甲酸二乙酯为芳香族二酸二酯、对苯二胺与间苯二胺混合物为芳香族二胺、降冰片稀二甲酸单乙酯为反应性封端剂制备了系列PMR型聚酰亚胺树脂.研究了树脂的化学结构及其计算分子量等对其成型工艺性能和耐热性能的影响规律.以优选树脂体系为基体与碳纤维复合制备的碳纤维增强聚酰亚胺树脂基复合材料表现出优良的耐热性能与力学性能,室温下,弯曲强度为1 560 MPa,弯曲模量为137 GPa,层间剪切强度为56 MPa,在370℃的高温下,其力学性能保持率大于50%.
参考文献
[1] | Pater R H .Thermosetting polyimides:A review[J].SAMPE Journal,1994,30(05):29-38. |
[2] | Hergenrother P M .The use,design,synthesis and properties of high performance/high temperature polymers:An overview High Perform[J].Polymers,2003,15(01):3-45. |
[3] | Chen JS;Yang SY;Tao ZQ;Hu AJ;Fan L .Processing and properties of carbon fiber-reinforced PMR type polyimide composites[J].High performance polymers,2006(3):377-396. |
[4] | Meador MA. .Recent advances in the development of processable high-temperature polymers [Review][J].Annual review of materials research,1998(0):599-630. |
[5] | Serafini T T;Delvigs P;Lightsey G R .Thermally stable polyimides from solutions of monomeric reactants[J].Journal of Applied Polymer Science,1972,16(04):905-915. |
[6] | Bowles K J;Nowak G .Thermo-oxidative stability studies of Celion 6000/PMR-15 unidirectional composites,PMR-15,and Celion 6000 fiber[J].Journal of Composite Materials,1988,22(10):966-985. |
[7] | Hasegawa Masatoshi;Shindo Yoichi;Yokota Rikio;Sensui Nobuyuki .Structure and properties of novel asymmetric biphenyl type polyimides. Homo- and copolymers and blends[J].Macromolecules,1999(2):387-396. |
[8] | Hiroaki Yamaguchi;Fumio Aoki .Properties of Asymmetric BPDA Based Phenylethynyl Terminated Thermosetting Polyimide and Its Composite[J].Journal of Photopolymer Science and Technology,2006(2):269-272. |
[9] | Sasaki T;Moriuchi H;Yano S;Yokota R .High thermal stable thermoplastic-thermo setting polyimide film by use of asymmetric dianhydride (a-BPDA)[J].Polymer: The International Journal for the Science and Technology of Polymers,2005(18):6968-6975. |
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