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研制了一种单组分无溶剂,使用方便的糊状耐高温双马来酰亚胺胶黏剂,该胶黏剂用双烯丙基双酚A和乙烯基液体丁腈橡胶做增韧剂。当端乙烯基液体丁腈橡胶用量为8%时,胶黏剂25℃剪切强度为23.8MPa,300℃剪切强度为7.6MPa,剥离强度为1.6N/mm,胶黏剂在耐水1000h后,25℃剪切强度为23.6MPa,300℃剪切强度为7.4MPa。胶黏剂在300℃老化100h后,25℃剪切强12.6MPa,300℃剪切强度为7.5MPa。
A one-component solvent-free, easy-to-use pasty high temperature resistant bismaleimide adhesive was developed. The adhesive was treated with diallyl bisphenol A and vinyl liquid nitrile rubber as a toughening agent . When the amount of terminal vinyl-based liquid nitrile rubber is 8%, the shear strength of the adhesive at 25 ℃ is 23.8MPa, the shear strength at 300 ℃ is 7.6MPa and the peel strength is 1.6N / mm. After the adhesive is water-resistant for 1000h , 25 ° C shear strength of 23.6MPa, 300 ° C shear strength of 7.4MPa. Adhesive aging at 300 ℃ 100h, 25 ℃ shear strength of 12.6MPa, 300 ℃ shear strength of 7.5MPa.