B_4C用于PI和804胶粘剂的改性与耐温性能研究
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摘要
综述了PI(聚酰亚胺)系列胶粘剂和804有机硅树脂胶粘剂的改性方案。采用B_4C(碳化硼)作为耐高温填料剂,通过NMP(N-甲基吡咯烷酮)调节胶粘剂浓度和控制B4C掺混比例,对PI胶粘剂和804胶水进行改性,并用于铝箔玻纤布的复合和耐温性能测试。研究结果表明:PI与NMP改性后的PI和804胶水,其耐温性能提升不明显;玻纤布中SiO_2(二氧化硅)易与B_4C发生反应,造成玻纤布强度明显下降,且对粘接特性改善作用不显著。
The modification schemes of PI(polyimide)series adhesives and 804 silicone resin adhesives were reviewed. Using B_4C(boron carbide)as the high temperature resistant filling,PI adhesives and 804 adhesives were modified by adjusting the concentration of adhesives and controlling the blending ratio of B_4C by NMP(Nmethyl pyrrolidone). The adhesives were also used for composite and temperature resistance test of fiberglass cloth with aluminum foil. The research results showed that the ratio of PI to NMP was more than 50%,and after dilution,the adhesion performance decreased slightly at high temperature,but the cost was significantly reduced,which could be used in medium and high temperature applications. The heat resistance of PI and 804 adhesives modified by B_4C was not improved obviously. SiO_2 in the fiberglass cloth easily reacted with B_4C,resulting in a significant decrease in the strength of the fiberglass cloth and no significant improvement in the adhesion properties.
The modification schemes of PI(polyimide)series adhesives and 804 silicone resin adhesives were reviewed. Using B_4C(boron carbide)as the high temperature resistant filling,PI adhesives and 804 adhesives were modified by adjusting the concentration of adhesives and controlling the blending ratio of B_4C by NMP(Nmethyl pyrrolidone). The adhesives were also used for composite and temperature resistance test of fiberglass cloth with aluminum foil. The research results showed that the ratio of PI to NMP was more than 50%,and after dilution,the adhesion performance decreased slightly at high temperature,but the cost was significantly reduced,which could be used in medium and high temperature applications. The heat resistance of PI and 804 adhesives modified by B_4C was not improved obviously. SiO_2 in the fiberglass cloth easily reacted with B_4C,resulting in a significant decrease in the strength of the fiberglass cloth and no significant improvement in the adhesion properties.
引文
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[2] PETRIE E M.How high temperatures affect adhesives and sealants[J].Metal Finishing,2012,110(9):31-33.
[3] HERGENROTHER P M.The use,design,synthesis,and properties of high performance/high temperature polymers:an overview[J].High Performance Polymers,2003,15(1):3-45.
[4]王喜梅,拓锐,柴娟.耐高温有机胶黏剂研究进展[J].化学与粘合,2008,30(6):60-64.
[5]谭忠阳.碳纤维布增强聚醚酰亚胺树脂基复合材料的制备与研究[D].长春:吉林大学,2015.
[6]余小霞,吴新宇,王海风.玻璃粉改性聚酰亚胺胶粘剂的研究[J].材料导报,2015,29(4):86-89.
[7]陈慧丹.纳米硅铝氧化物杂化聚酰亚胺薄膜的结构和性能研究[D].哈尔滨:哈尔滨理工大学,2009.
[8]游世海,齐士成,李友芬,等.无机填料改性有机硅胶粘剂高温黏结性能及机理分析[J].硅酸盐学报,2014,42(1):70-74.
[9] MEI L,WANG Y,WANG Q,et al.Structural changes and tribological performance of thermosetting polyimide induced by proton and electron irradiation[J]. Radiation Physics&Chemistry,2015,107:171-177.
[10] WANG X,WANG J,HAO W. Synthesis of a novel preceramic polymer(V-PMS)and its performance in heatresistant organic adhesives for joining SiC ceramic[J].Journal of the European Ceramic Society,2012,32(12):3415-3422.
[11] WANG X,WANG J,WANG H. Preparation of hightemperature organic adhesives and their performance for joining SiC ceramic[J]. Ceramics International,2013,39(2):1365-1370.
[12]贾月荣.无机填料改性聚酰亚胺胶黏剂的制备及其性能研究[D].北京:北京化工大学,2016.
[13]王训,李森,纪国剑,等.耐高温有机胶粘剂的现状与发展[J].中国胶粘剂,2018,27(6):57-61.