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以端羧基丁腈橡胶(CTBN)作为EP(环氧树脂)的增韧剂、聚醚胺(D-230)作为固化剂的主要成分,研制了3种室温固化型EP胶粘剂(J-133、J-153和J-164)。研究结果表明:J-133具有较高的剪切强度(>27.0 MPa)和较好的韧性(剥离强度>4.0 kN/m),可用于板-板和板-芯结构的胶接;J-153具有较低的黏度,是一种灌注型胶粘剂,可用于蜂窝夹层板上安装固定元器件,其压缩强度为81.0 MPa、断裂伸长率为5.3%~6.8%;J-164的密度(0.6~0.8 g/cm~3)较低,是一种蜂芯拼接胶,其压缩强度为25.5 MPa、90°剥离强度为2.3 kN/m。这3种胶粘剂均具有较高的胶接强度、较宽的使用温度范围,并且在水、航空煤油、液压油及高湿气等环境中均具有很好的耐久性。
Three kinds of room temperature curing EP adhesives (J-133, EP-C) were prepared by using carboxymethyl acrylonitrile-butadiene rubber (CTBN) as the toughening agent of EP (epoxy resin) and polyether amine (D-230) as the main components of the curing agent. J-153 and J-164). The results show that J-133 has high shear strength (> 27.0 MPa) and good toughness (peel strength> 4.0 kN / m), which can be used for the bonding between plate-plate and plate- 153 has a lower viscosity and is a type of potting adhesive that can be used for mounting and fixing components on a honeycomb sandwich panel with a compressive strength of 81.0 MPa and an elongation at break of 5.3% to 6.8%. The density of J-164 (0.6 ~ 0.8 g / cm ~ 3), which is a kind of honeycomb splicing glue with compressive strength of 25.5 MPa and peel strength of 90 kN / m. All three adhesives have high bond strength, wide operating temperature range, and have good durability in water, aviation kerosene, hydraulic oil and high humidity environments.