固化参数对环氧填充胶的热膨胀性能影响研究  

Influence of Curing Parameters on the Thermal Expansion Performance of Epoxy Filler Adhesive

作　　者：苏霞 刘训新 成艳娜 袁潇洒 林雨辰 元振毅 SU Xia;LIU Xun-xin;CHENG Yan-na;YUAN Xiao-sa;LI Yu-chen;YUAN Zhen-yi(AVIC Xi'an Aircraft Industry Group Company Ltd.,Xi'an 710089,Shaanxi,China;School of Mechanical and Precision Instrument Engineering,Xi'an University of Technology,Xi'an 710048,Shaanxi,China)

机构地区：[1]中航西安飞机工业集团股份有限公司,陕西西安710089 [2]西安理工大学机械与精密仪器工程学院,陕西西安710048

出　　处：《合成纤维》2024年第12期60-63,共4页Synthetic Fiber in China

基　　金：中国博士后科学基金(2022MD713799);陕西省重点研发计划(2023-YBGY-387)。

摘　　要：为获得表面质量良好的蜂窝夹芯零件,以环氧填充胶Epocast 1629 A/B为研究对象,研究不同温度下固化后的膨胀量,分析温度、固化次数对其热膨胀性能的影响。结果表明,对于Epocast 1629A/B填充胶,推荐的工艺过程和参数如下:首先在常温下填充,制袋冷抽固化24h,然后在(180±5)℃下保温120 min固化,最后对填胶区域表面进行打磨处理,避免蒙皮铺贴固化后零件表面出现凸起现象,影响后续装配工作。In order to obtain honeycomb sandwich parts with good surface quality,the epoxy filler Epocast 1629 A/B was taken as the research object to study the expansion amount after curing at different temperatures,the influence of temperature and curing times on its thermal expansion performance was analyzed.The results indicate that the recommended process and parameters for Epocast 1629 A/B filler adhesive are as follows:initially,the filling should be done at room temperature,followed by bagging,cold-drawing,and curing for 24 h.Then,the material should be heat-treated at(180±5)℃ for 120 min to achieve full curing.Finally,the surface of the filled area should be polished to prevent any protrusions on the part surface after the skin layup and curing process,which could affect subsequent assembly work.

关 键 词：填充胶 蜂窝芯 夹层结构 热膨胀性能 

分 类 号：TB33[一般工业技术—材料科学与工程]