一种石油用的EVA热熔胶改性研究

Modification of EVA Hot Melt Adhesive for Petroleum

热熔胶是以热塑性弹性体或者热塑性树脂为主要成分,并添加抗氧化剂、增塑剂、阻燃剂等成分,保证其整体性能良好。通过对石油溶剂的成分和用量、催化剂的用量、聚合温度等工艺条件的优化和探索,削弱苯乙烯对石油软化点降低的影响,从而得到色度低,软化点高的树脂,获得了最佳的配方和工艺条件。对EVA基础聚合物的接枝改性或与其它聚合物的多元共混改性是近年来两个明显的发展方向。反应型EVA热熔胶等新型改性热熔胶也不断涌现,本文从一种石油用的EVA热熔胶的性能入手,深入进行分析,通过实验进行验证,明确其改良后的性能,以供参考。

Hot melt adhesives are thermoplastic elastomers or thermoplastic resins as the main components, and add antioxidants,plasticizers,flame retardants and other components to ensure its overall performance is good. By optimizing and exploring the technological conditions such as the composition and amount of petroleum solvent,the amount of catalyst and the temperature of polymerization,the effect of styrene on the decrease of softening point of petroleum was weakened,thus the resin with low color and high softening point was obtained,and the optimum formulation and technological conditions were obtained.The graft modification of EVA base polymer or the multi-component blend modification with other polymers is two obvious development directions in recent years. New modified hot melt adhesives such as reactive EVA hot melt adhesives are also emerging. This paper starts with the performance of a petroleum EVA hot melt adhesive,analyzes it in depth,and verifies it through experiments to clarify its improved performance. reference.