风电混塔用环氧拼接胶在低温下的应用性能研究  

Study on the application performance of epoxy splicing adhesive for wind power at low temperature

作　　者：王志昂 陈肖宇 张志新 王玲玲 董连成 陈淼 WANG Zhiang;CHEN Xiaoyu;ZHANG Zhixin;WANG Lingling;DONG Liancheng;CHEN Miao(Kehui(Henan)New Materials Technology Co.Ltd.,Nanyang 473000,China)

机构地区：[1]可慧(河南)新材料科技有限公司,河南南阳473000

出　　处：《新型建筑材料》2024年第5期137-140,共4页New Building Materials

摘　　要：自制改性胺固化剂B1与环氧A1组份搭配使用,研究不同的胶体温度对风电用环氧拼接胶施工性能及压缩强度的影响,以及不同改性胺固化剂与不同A组份搭配使用时,风电用环氧拼接胶的施工性能及压缩强度。结果表明:当自制改性胺B1作为固化剂与A1复合使用,并维持胶体温度在20、25℃时,风电用环氧拼接胶具有较好的施工性能和压缩强度;因此建议冬季环境温度在-10~-7℃时,将风电用环氧拼接胶A、B组份升温至20℃再混合使用,此时风电用环氧拼接胶的对粘弯曲性能符合T/CECS 10080—2020的要求。当环氧A4组份与自制改性胺固化剂B1复合使用时,室温调节30 min后,风电用环氧拼接胶的7、14 d压缩强度分别为56.5、71.9 MPa;与B3复合使用时,其7、14 d压缩强度分别为61.2、68.2 MPa,14 d强度低于自制改性胺固化剂B1。The self-made modified amine curing agent B1 is used in combination with epoxy A1 component to study the effect of different colloid temperatures on the construction performance and compressive strength of epoxy splicing adhesive for wind power,as well as the construction performance and compressive strength of epoxy splicing adhesive for wind power when different modified amine curing agents are used in combination with different A components.The results show that when self-made modified amine B1 is used as a curing agent in combination with A1,and the colloid temperature is maintained at 20 and 25 ℃,the epoxy splicing adhesive for wind power has good construction performance and compressive strength.Therefore,it is recommended to raise the temperature of components A and B of epoxy splicing adhesive for wind power to 20 ℃ when the winter ambient temperature is between -10~-7 ℃,and then mix them together.At this time,the adhesive bending performance of epoxy splicing adhesive for wind power meets the requirements of T/CECS 10080—2020.When epoxy A4 component is used in combination with self-made modified amine curing agent B1,after adjusting at room temperature for 30 minutes,the compressive strength of epoxy splicing adhesive for wind power at 7 and 14 days is 56.5 and 71.9 MPa,respectively;When used in combination with B3,its compressive strength at 7 and 14 days was 61.2 and 68.2 MPa,respectively,and the 14 d strength was inferior to that of self-made modified amine curing agent B1.

关 键 词：环氧树脂 改性胺固化剂 拼接胶 低温 抗压强度 

分 类 号：TU58[建筑科学—建筑技术科学]