热熔胶研究进展

从传统型和可生物降解型两个方面介绍了热熔胶的研究进展。根据热熔胶所用基体树脂类型,传统型热熔胶分为聚氨酯(PU)类、聚酰胺(PA)类和乙烯/醋酸乙烯(EVA)类等,可生物降解型热熔胶分为聚乳酸型、聚酯酰胺型、聚羟基烷酸酯型和天然高分子型等。传统型热熔胶由于其结构的不可降解性,对环境造成了较大的危害;而可生物降解型热熔胶,符合环保理念,潜在市场大。在查阅国内外文献的基础上,对可生物降解型热熔胶提出了今后的研究和发展方向。

Research progress of hot-melt adhesives

The recent research developments of hot-melt adhesive were introduced from traditional and biodegradable aspects.According to the different matrix resin,the traditional hot-melt adhesive could divide into polyurethane(PU),polyamide(PA) and ethylene/vinyl acetate(EVA),but the biodegradable hot-melt adhesive could divide into polylactic acid,polyester amide,polyhydroxyalkanoates,natural polymer and so on.The traditional hot-melt adhesive cannot be degraded in the natural environment because of its structure,so it had biggish damage to environment.But the biodegradable hot-melt adhesive,which was accordant with environmental protection concepts,had biggish potential market.Moreover,the further research and development direction of biodegradable hot-melt adhesive were also presented based on the literature at home and abroad.