单组分湿固化木材用聚氨酯胶黏剂研究  

Study on One-Component Moisture-Curable Polyurethane Adhesive for Wood

作　　者：杨树竹[1] 宫涛 白贵锋[1] 

机构地区：[1]太原理工大学,山西太原030024 [2]山西化工研究所,山西太原030021

出　　处：《化学推进剂与高分子材料》2007年第3期55-57,共3页Chemical Propellants & Polymeric Materials

摘　　要：采用聚醚多元醇、聚合二苯基甲烷二异氰酸酯(PAPI)为主要原料制备了木材用单组分湿固化聚氨酯胶黏剂。研究了-NCO含量、聚醚多元醇相对分子质量、反应温度及扩链系数对木材粘接性能的影响。结果表明:在-NCO质量分数为12.29%,扩链系数为0.2时,粘接性能最好,24 h后压缩剪切强度可达20.17MPa。One-component moisture-curable polyurethane adhesive for wood was prepared by using polyether polyols and polymethylenepolyphenylisocyanate（PAPI） as main materials. The effects of-NCO content, the average relative molecular mass of polyether polyols, the reacion temperature and the chain extending coefficient on adhesion strength of the adhesive for wood were studied. The results show that moisture-curable polyurethane adhesive his the best adhesion property when -NCO mass fraction is 12.29% and the chain extending coefficient is 0.2. The compression shear strength is 20.17MPa after 24h.

关 键 词：单组分 湿固化 木材用聚氨酯胶黏剂 

分 类 号：TQ433.432[化学工程]