软包装用无溶剂聚氨酯胶黏剂的后期固化性能研究

Study on curing properties of solventless polyurethane laminating adhesive for flexible packaging

本文主要通过植物油改性多元醇、自制聚酯多元醇及自制的潜伏固化剂来改善软包装用无溶剂聚氨酯胶黏剂的流平性、后期固化性能及最终的剥离强度。研究表明,改进后的无溶剂聚氨酯胶黏剂在流平性、后期固化性能及最终的剥离强度上较普通的干轻包装用无溶剂聚氨酯胶黏剂都有明显的改善。

This paper is aimed at improving the levelling and curing properties,peeling strength of polyurethane laminating adhesive through using Vegetable oil modified polyols,self-made polyester,and self-made Latent curing agent.The results show that the levelling and curing properties,peeling strength of improved solventless laminating adhesive is higher than the normal solventless laminating adhesive.