LNG船用湿固化单组分聚氨酯胶水的研究  

Study on Wet-curing Single Component Polyurethane Glue for LNG Carrier

作　　者：谢琼春 王云 刘凯 望希言 王国乔 陆金君 沈鑫鹏 XIE Qiongchun;WANG Yun;LIU Kai;WANG Xiyan;WANG Guoqiao;LU Jinjun;SHEN Xinpeng(Zhejiang Tuanyuan Composite Materials Co.,Ltd.,Jiaxing 314000,China)

机构地区：[1]浙江抟原复合材料有限公司,浙江嘉兴314000

出　　处：《化学与粘合》2025年第2期123-125,130,共4页Chemistry and Adhesion

基　　金：工信部海上LNG装备产业链创新工程项目(编号:CBG3N21-2-2)。

摘　　要：160℃的绝缘耳片粘接技术是LNG船的核心技术之一。通过两步法合成湿固化聚氨酯胶水,利用FTIR、可操作时间及垂直剪切等测试方法来确定胶水的固化行为和性能。结果表明,控制胶水NCO含量为11%左右时,所得到的胶水黏度和可操作时间适合实际工装要求,产品的力学性能佳;使用醛亚胺类固化剂,胶水固化过程中产生的气泡少,力学性能得到进一步提升。通过上述方法和配方所得到的聚氨酯胶水满足LNG船用系统粘接材料的要求。The-160℃insulation lug bonding technology is one of the core technologies of the LNG carrier.The wet curing polyurethane glue is synthesized by two-step method.The FTIR,open time of operate and vertical shear are used to evaluate the curing behavior and properties of the glue.The results show that when the NCO content of glue is controlled to be about 11%,the obtained glues’viscosity and operating time are suitable for the requirements of practical tools,and the mechanical properties of the product are good.The use of aldehyde imide curing agent makes less bubbles during the glue curing process,thus the mechanical properties are further improved.The polyurethane glue prepared by the above method and formula meets the requirements of bonding materials for LNG carrier systems.

关 键 词：LNG船 预聚体 胶水 潜固化剂 

分 类 号：TQ433.432[化学工程]