聚醚胺固化环氧树脂胶粘剂的研究

Study on epoxy resins adhesives by amine-terminated polyether as curing agent

以聚醚胺D-230为固化剂,研究了多官能度环氧树脂和硫酸钙晶须的加入对环氧树脂胶粘剂粘接性能的影响。研究结果表明,多官能度环氧树脂和改性硫酸钙晶须的加入,很好地改善了环氧树脂胶粘剂的高温性能;当环氧树脂m(E-51)∶m(F-51)∶m(AG-80)=3∶3∶2、改性硫酸钙晶须为树脂总质量的10%时,体系的粘接性能最佳,室温和100℃剪切强度分别为25.91MPa和6.11MPa,室温剥离强度可达5.26kN/m。

The influence of epoxy resins with different functionality and Ca2SO4 whiskers on the bonding properties of epoxy resin adhesives were studied with amine-terminated polyether D-230 as curing agent. The results indicated that the addition of AG-80 epoxy resin and modified Ca2SO4 whiskers could improve high temperature properties of epoxy resin adhesives. When the mass ratio of E-51 and F-51 and AG-80 in epoxy resin was 3：3：2, and the mass fraction of modified Ca2SO4 whiskers was 10% in total resin, the bonding properties of epoxy resin adhesive were best, the shear strength and the peel strength at the room temperament were 25.91 MPa and 5.26 kN/m, the shear strength at 100 ℃ was 6.11 MPa.