单组分中温固化耐碱胶黏剂的研制  

A One-component Alkali Resistant Adhesive Curing at Moderate Temperature

作　　者：吴健伟[1] 王国辉 赵玉宇[1] 赵汉青[1] 王冠[1] 何影翠[1] 于昕[1] 付刚[1] 

机构地区：[1]黑龙江省石油化学研究院,黑龙江哈尔滨150040 [2]石家庄宝石瑞铭塑钢制品有限公司,河北石家庄050041

出　　处：《化学与粘合》2006年第5期310-313,共4页Chemistry and Adhesion

摘　　要：从解决潜伏性中温固化和耐碱性问题入手,合成了新型促进剂,并选用具有耐碱化学结构的主体材料成分,配制出性能优良的单组分糊状胶黏剂并研究了其耐碱性、固化工艺、黏度变化和贮存期。采用双酚A环氧为主体树脂,以合成的韧性环氧进行增韧,以超细双氰胺为固化剂,以合成的混合胺的脲类衍生物为潜伏性固化促进剂,以气相SiO2调节触变性,制备出的单组分中温固化环氧胶黏剂具有良好粘接性能和稳定的分散性,其室温剪切强度(铝/铝)达28 MPa,90℃剪切强度25MPa,用于橡胶粘接达到橡胶破坏。该胶体现出良好的耐碱性、耐湿热老化性能和较长的贮存期(室温一个月以上)。In ordex to solve the problems of latent curing at moderate temperature and alkali resistance, a pasty one - component adhesive was formulated with novel accelerator synthesized and sdecting main component with alkali resistance.And its alkali resistance,curing technology,change of viscosity and storage time were studied in detail. The one - component epoxy adhesive prepared which could cure at moderate temperature had excellent bonding performance and stable dispersity with bisphenol A epoxy as main resin,toughened epoxy resin synthesized as toughener, super- fine dicyanodiamide as the curing agent,urea derivatives synthesized as latent curing accelerator and gaseous SiO2 as thixotropic agent.The shear strength of this adhesive for bonding Al and Al at room temperature and 90℃ was 28 MPa and 25 MPa respectively.And the shear strength was so high that the rubber was damaged when it used for bonding Al and rubber.This adhesive showed good alkali resistance,heat - moisture aging resistance and long shelf life （over one month）.

关 键 词：单组分 胶黏剂 耐碱 中温固化 

分 类 号：TQ433.43[化学工程]