摘要
用多元醇、二苯基甲烷4,4-二异氰酸酯(MD I),合成了车灯用湿固化聚氨酯热熔胶粘剂。研究了胶粘剂的黏度、黏度稳定性和初粘力等性能.结果表明,当高结晶性聚酯和热塑性聚酯用量在10%和15%时,胶粘剂剥离强度达到980N/25mm耐热性达到180℃,基本上满足了汽车灯具密封与装配的要求。
The moisture-curable polyurethane hot -melt adhesives for autolamps were synthesized from polyol and diphenyl methane - 4, 4 - diisocyanate （MDI）. The viscosity, viscosity stability and green strength of the adhesive were studied. The peel strength was 980N/25mm and thermal resistance was 180℃, when the cristalline polyester content was 10% and the thermoplastic polyester content was 15%. The hotmeh adhesive satisfied with the reguirements of auto - lamps sealing and assembling.
出处
《广州化工》
CAS
2009年第5期85-87,共3页
GuangZhou Chemical Industry
关键词
车灯
湿固化
聚氨酯热熔胶
auto - lamps
moisture curable
polyurethane hot - melt adhesive
