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采用玻璃纤维布/光固化胶粘剂复合材料补片,实现对铝合金片的快速粘接与固化。考察了国产UV胶粘剂预聚物和进口UV胶的粘接性能、耐温性能以及粘接强度随胶粘剂相对分子质量及其分布的变化规律。结果表明:进口光固化胶/玻璃纤维布复合材料补片与铝合金片的剪切强度在14.5～23.1MPa之间,国产光固化胶体系剪切强度在11.3～16.6MPa之间,两者均高于铆接强度(10.3MPa);作为胶粘剂基体树脂,相对分子质量分布越宽越有利于粘接强度的提高;此外,-40℃低温与100℃高温对体系粘接强度的影响很小(不超过10%)。
Using glass fiber cloth / light curing adhesive composite patch, to achieve the rapid bonding of aluminum alloy sheet and curing. The adhesive properties, temperature resistance and bonding strength of domestic UV adhesive prepolymer and imported UV adhesive were investigated. The changes of adhesive molecular weight and its molecular weight were investigated. The results show that the shear strength of the imported light curing adhesive / glass fiber cloth composite and the aluminum alloy sheet are between 14.5 and 23.1 MPa, the shear strength of the domestic light curing glue system is between 11.3 and 16.6 MPa, both Higher than the riveting strength (10.3MPa); as the adhesive matrix resin, the wider the relative molecular mass distribution is conducive to the improvement of adhesive strength; In addition, -40 ℃ low temperature and 100 ℃ high temperature on the system adhesive strength is small (not Over 10%).