蜂窝夹层结构基板脱粘问题分析
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摘要
蜂窝夹层结构基板经热真空试验后,其正面局部出现了鼓泡脱粘现象,脱粘形式有2种,一种为聚酰亚胺膜与网格面板脱粘,另一种为网格面板与加强板脱粘。通过对聚酰亚胺膜与网格面板脱粘界面的宏微观观察,确定两者在脱粘前粘接良好,为外力导致的脱粘;通过对网格面板与加强板脱粘界面的宏微观观察,及胶膜的红外光谱分析、DSC测试、挥发分测试,确定网格面板与加强板在脱粘前未形成良好的粘接,该不良粘接可能与设计、工艺控制有关,与胶膜质量无关。
Bubbly debonding occurred in the surface of the honeycomb sandwich construction substrates after thermal vacuum test. There were two kinds of debonding. One kind was debonding between polymide film and composite netting plate; another was debonding between composite netting plate and stiffened plate. Micro and macro observation was carried out on the debonding interface between polymide film and composite netting plate. The results indicated that polyimide film and composite netting plate bonded well. They debonded because of the external force. Micro and macro observation on the debonding interface between composite netting plate and stiffened plate was carried out. And FIR analysis,DSC testing and volatile determination of the adhesive film were also performed. The results indicated that composite netting plate and stiffened plate bonded poorly. The poor bonding is related to design or process control and has nothing to do with the quality of the adhesive film.
Bubbly debonding occurred in the surface of the honeycomb sandwich construction substrates after thermal vacuum test. There were two kinds of debonding. One kind was debonding between polymide film and composite netting plate; another was debonding between composite netting plate and stiffened plate. Micro and macro observation was carried out on the debonding interface between polymide film and composite netting plate. The results indicated that polyimide film and composite netting plate bonded well. They debonded because of the external force. Micro and macro observation on the debonding interface between composite netting plate and stiffened plate was carried out. And FIR analysis,DSC testing and volatile determination of the adhesive film were also performed. The results indicated that composite netting plate and stiffened plate bonded poorly. The poor bonding is related to design or process control and has nothing to do with the quality of the adhesive film.
引文
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[2]王兴业,杨孚标,曾竟成,等.夹层结构复合材料设计原理及其应用[M].北京:化学工业出版社,2007:4-8.
[3]赵鹏成.含缺陷复合材料蜂窝夹层结构力学性能研究[D].哈尔滨:哈尔滨工程大学,2009:1-5.
[4]刘慧,周双峰,王涛.蜂窝夹层结构粘接质量的错位散斑检测[J].真空与低温,2011(增刊2):255-258.
[5]张丽琴.铝蜂窝夹层结构的无损检测研究[D].南京:南京航空航天大学,2009:1-8.
[6]冯计民.红外光谱在微量物证分析中的应用[M].北京:化学工业出版社,2010:5-34.
[7]张栋,钟培道,陶春虎,等.失效分析[M].北京:国防工业出版社,2008:280-296.
[8]陶春虎,刘高远,恩云飞,等.军工产品失效分析技术手册[M].北京:国防工业出版社,2009:601-614.
[9]范金娟,程小全,陶春虎.聚合物基复合材料构件失效分析基础[M].北京:国防工业出版社,2011:202-208.
[10]汪亮,王兵.环境湿度对蜂窝夹层结构胶接工艺影响研究[C].第17届全国复合材料学术会议论文集,2012:689-692.