摘要
为了提高碳纤维增强树脂基复合材料(CFRP)的浸润性,采用霍尔离子源等离子体放电对复合材料表面进行活化处理,通过接触角测量、金相微观分析和红外光谱分析法,分别探究不同参数(气压、电流、时间)对等离子体活化CFRP浸润性的影响,同时考察活化后复合材料在不同环境中浸润性随时间的变化。研究结果表明,不同参数下活化所得基体表面的浸润性都显著提高;由红外光谱分析可知C—C数量减少,C—O数量增加,酯基数量减少,酮基、羧基和醇羟基数量相应增加,基体表面极性增强,浸润性显著提高。基体表面活化后存在"老化"现象,常温水中保存可以延缓这种现象。
In order to improve the wettability of carbon fiber reinforced resin matrix composites (CFRP),plasma activation of CFRP surface was provided by Hall discharge plasma,and the effect of different plasma activation parameters (pressure,current and activation time)and the change of wettability of activated CFRP preserved in different conditions were learned.Many methods such as contact angle measurement,metallographic microscop-ic analysis and infrared spectroscopic analysis,were used to research the wettability,microstructure,and type of functional groups of the CFRP surface respectively.Research results show that the wettability of CFRP sur-face was improved after plasma activated with different working parameters.Infrared spectroscopic analysis in-dicates that the quantities of C-C and C-O bonds on the surface of activated CFRP are decreased and increased respectively.Besides,carboxyl groups,ketone groups and alcoholic hydroxyl groups were increased,while ester groups are decreased,which contributes to the remarkable improvement of wettability.Although the activated effect will reduce over time,preservation in water of room temperature can delay this reduction.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2014年第21期21107-21111,共5页
Journal of Functional Materials
基金
四川省科技计划资助项目(2013GZX0168)
ITER计划国内配套专项资助项目(2013GB110006)
