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主要研究了苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)与乙烯-醋酸乙烯共聚物(EVA)在溶液中的接枝反应,并添加增粘树脂,制备出环保型胶粘剂。分析了EVA加入量、反应温度、反应时间和增粘树脂加入量在相同SBS质量和溶剂的条件下,对胶液性能的影响。研究结果表明:在反应温度80℃,SBS 5g、EVA 7．5g、松香7g,反应时间4h的条件下,得到的胶粘剂性能优异。
The grafting reaction of styrene-butadiene-styrene block copolymer (SBS) and ethylene-vinyl acetate copolymer (EVA) in solution was mainly studied, and a tackifier resin was added to prepare an environment-friendly adhesive. The effects of the addition amount of EVA, reaction temperature, reaction time and amount of tackifying resin on the properties of the liquid glue under the same SBS mass and solvent conditions were analyzed. The results show that the adhesive obtained under the conditions of 80 ℃, SBS 5g, EVA 7.5g, rosin 7g and reaction time 4h has excellent performance.