高温下不发泡单组分聚氨酯密封胶的研究  

Study on one-component polyurethane sealant without bubbling at high temperature

作　　者：卜涛 刘亚琼 陈淼 陆瑜翀 吕亚真 王华南 BU Tao;CHEN Miao;LIU Ya-qiong;LU Yu zhong;LV Ya-zhen;WANG Hua-nan(Quality Testing Center of Zhengzhou Zhongyuan Silande High Technology Co.,Ltd.,Zhengzhou,Henan 450001,China)

机构地区：[1]郑州中原思蓝德高科股份有限公司,河南郑州450007

出　　处：《粘接》2018年第10期50-52,63,共4页Adhesion

摘　　要：制备了一种高温下不发泡单组分聚氨酯密封胶。以自制聚氨酯预聚体为主体原料,讨论了溶剂、填料、催化剂等对聚氨酯密封胶高温下发泡性能的影响。通过将聚氨酯预聚体中的稀释剂由低沸点的溶剂更换为高沸点的酯类增塑剂,添加聚氯乙烯糊树脂及添加噁唑烷类潜固化剂等方法能显著减少高温下密封胶气泡的形成。A kind or one component polyurethane sealant without bubbling at high temperature was prepared. The effects or solvents, Fillers, catalyst and latent curing agent on the bubbling behavior or polyurethane sealant at high temperature were discussed. The Formation or bubbles was significantly reduced by changing the diluent with low boiling point solvent to that with high boiling point in the polyurethane prepolymer, adding the PVC paste resin, and adding the oxazolidine latent curing agent.

关 键 词：聚氨酯 增塑剂 填料 潜固化剂 

分 类 号：TQ436.6[化学工程]