摘要
合成了一种双邻苯二甲腈树脂(BPh),并以聚酰胺酰亚胺(PAI)为增韧剂,以二烯丙基双酚A改性4,4′-二氨基二苯甲烷型双马树脂(DP/BMI)为促进剂,研制出一种耐高温双邻苯二甲腈树脂胶黏剂。通过DSC和FTIR分析了该胶黏剂的固化行为,利用DMA和TGA评价了该胶黏剂的耐热性并采用材料试验机考核了该胶黏剂的粘接强度。结果表明:DP/BMI树脂能促进BPh树脂胶黏剂固化,固化温度为260℃。PAI能有效增韧BPh树脂的胶黏剂,增韧后胶黏剂蜂窝滚筒剥离强度达到21.20N·mm/mm。BPh树脂胶黏剂耐热性好,400℃剪切强度为6.38MPa,玻璃化转变温度为329.6℃。胶黏剂剪切强度耐热老化保持率在80%以上;耐湿热老化保持率在95%以上。
A kind of high-temperature resistant adhesive of bisphthalonitrile resin was developed by using self-synthesised bisphthalonitrile resin （BPh）, and PAl as toughening agent and DP/BMI as promoter. The curing behaviors of the adhesive were analyzed by DSC and FTIR. The thermal properties of the adhesive were evaluated by DMA and TGA, and the bonding strength of the adhesive was studied by material test machine. The results show that DP/BMI resin can promote curing reaction of the BPh resin adhesive, with the curing temperature of 260℃. BPh resin adhesive is effectively toughened by PAI with the drum peel strength of adhesive reaching 21.20N·mm/mm. BPh resin adhesive is qualified for its good heat resistance. The shear strength is 6.38MPa at 400℃, and the glass transi- tion temperature is 329.6℃. The shear strength retention of the adhesive is above 80% after high-temperature aging. The shear strength retention is above 95%after heat-moisture aging.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2014年第10期21-26,共6页
Journal of Materials Engineering
关键词
双邻苯二甲腈
耐热
胶黏剂
增韧
bisphthalonitrile
high-temperature resistant
adhesive
toughening
