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研制了一种芳纶纸蜂窝节点胶黏剂,该胶黏剂以环氧树脂和高邻位酚醛树脂为主体树脂,以活性端基的丁腈橡胶弹性体为增韧剂,以核壳橡胶和无机填料为流动控制剂,可在180℃固化。25℃剪切强度为34.6MPa,150℃剪切强度为14.1MPa,25℃蜂窝节点强度为5.6N/cm。该胶黏剂有较好的耐热性能和耐湿热性能,在150℃经过400h的热老化或是经过1000h的湿热老化后,依然具有良好的力学性能。
A honeycomb node aramid paper adhesive has been developed. The adhesive uses epoxy resin and high ortho phenolic resin as the main resin. The active terminal nitrile rubber elastomer is used as the toughening agent, and the core-shell rubber And inorganic filler for the flow control agent, can be cured at 180 ℃. The shear strength at 25 ℃ is 34.6MPa, the shear strength at 150 ℃ is 14.1MPa, and the honeycomb node strength at 25 ℃ is 5.6N / cm. The adhesive has good heat resistance and resistance to heat and humidity properties, after 400h heat aging at 150 ℃ or after 1000h heat aging, still has good mechanical properties.