| 紫外光照射对新型双马来酰亚胺基复合材料性能的影响 |
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| 引用本文： | 王云英,张建明,孟江燕,丁祖群,李超. 紫外光照射对新型双马来酰亚胺基复合材料性能的影响[J]. 工程塑料应用, 2012, 40(3): 69-72 |
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| 作者姓名： | 王云英 张建明 孟江燕 丁祖群 李超 |
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| 作者单位： | 1. 无损检测技术教育部重点实验室(南昌航空大学),南昌,330063
2. 中航工业成都飞机工业集团公司,成都,610092 |
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| 基金项目： | 航空自然科学基金目，航空检测与评价航空科技重;点实验室项目 |
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| 摘 要： | 利用紫外灯对T700碳纤维增强双马来酰亚胺基复合材料(T700/5429)进行了90 d的紫外光照射,采用扫描电子显微镜、万能试验机、傅里叶变换红外光谱仪及动态热机械分析仪分析了紫外光照射前后复合材料的表面形貌、弯曲断面形貌、特征基团透射峰面积及力学性能的变化情况。结果表明,经90 d的紫外光照射后,T700/5429表面纤维出现裸露,树脂基体有脱落的现象;而复合材料的面内压缩强度和弯曲强度保持较好。透射峰面积的变化、纤维裸露及玻璃化转变温度的降低表明了90 d紫外光照射会使双马来酰亚胺树脂基体的酰亚胺环裂解。
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| 关 键 词： | T碳纤维复合材料 紫外光照射 动态力学性能 面内压缩强度 |
Effect of Ultraviolet Irradiation on Properties of Novel Model BMI Matrix Composites |
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| Wang Yunying , Zhang Jianming , Meng Jiangyan , Ding Zuqun , Li Chao. Effect of Ultraviolet Irradiation on Properties of Novel Model BMI Matrix Composites[J]. Engineering Plastics Application, 2012, 40(3): 69-72 |
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| Authors: | Wang Yunying Zhang Jianming Meng Jiangyan Ding Zuqun Li Chao |
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| Affiliation: | 1.Key Laboratory of NDT(Nanchang Hangkong University),the Ministry of Education,Nanchang 330063,China; 2.AVIC Chengdu Aircraft Industrial Corporation,Chengdu 610092,China) |
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| Abstract: | T700 carbon fiber reinforced BMI composites(T700/5429) were irradiated for 90 days by using the ultraviolet lamp.Scanning electronic microscope,universal testing machine,FTIR and DMA were used to analyze the changes of surface morphology,flexural fracture morphology,the transmission peak area of characteristic groups and mechanical properties of the composites before and after ultraviolet irradiation.The results indicated that after ultraviolet irradiation for 90 days,carbon fibers on the surface of T700/5429 exposed and the resin matrix was detached.On the other hand,in-plane compressive strength and bending strength of the composites were almost intact.The changes of transmission peak area,the exposure of fibers and the decrease of glass transition temperature indicated the imide ring of the resin matrix was dissociated after ultraviolet irradiation for 90 days. |
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| Keywords: | T700 carbon fiber composite ultraviolet irradiation dynamic mechanical property in-plane compressive strength |
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