Chemical Industry and Engineering Progree

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Preparation of reactive polyurethane hotmelt adhesive for auto-lamps

YE Qing,LU Zhenfei,LI Jian,HE Bin,HAN Xinwen   

  1. Jiaxing Engineering Center of TIPC, CAS
  • Online:2010-01-05 Published:2010-01-05

车灯用反应型聚氨酯热熔胶的研制

叶 青,陆振飞,李 健,何 彬,韩新稳   

  1. 中国科学院理化技术研究所嘉兴工程中心

Abstract: Moisture-curable polyurethane hot-melt adhesives for auto-lamps 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 980 N/25 mm and thermal resistance was 180 ℃ when the crystalline polyester content was 10% and the thermoplastic polyester content was 15%. The hotmelt adhesive is satisfied with the requirements of auto-lamps sealing and assembling.

摘要: 以多元醇、二苯基甲烷4,4′-二异氰酸酯(MDI)为原料,合成了湿固化反应型聚氨酯热熔胶黏剂用于汽车车灯粘接,研究了胶黏剂的黏度、黏度稳定性和初黏力等性能。结果表明,当高结晶性聚酯和热塑性聚酯用量在10%和15%时,胶黏剂剥离强度达到980 N/25 mm,耐热性达到180 ℃,满足了汽车灯具密封与装配的要求。

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