无溶剂型单组分聚氨酯胶粘剂的研制  

Study on preparing one-component PU adhesive with solvent-free

作　　者：韩建祥[1] 胡孝勇[1] 郑友明[1] 陈锦凡 

机构地区：[1]广西工学院生物与化学工程系,广西柳州545006 [2]江门亿源生化工程有限公司,广东江门529000

出　　处：《中国胶粘剂》2012年第8期41-44,共4页China Adhesives

基　　金：广东省科技厅资助项目(2011B090400291)

摘　　要：以聚醚二元醇（PPG）、改性MDI（4,4′-二苯基甲烷二异氰酸酯）、PAPI（多亚甲基多苯基多异氰酸酯）、1,4-BDO（1,4-丁二醇）和环保型PU潜固化剂等为主要原料,采用预聚体法制得无溶剂型单组分聚氨酯（PU）胶粘剂。研究结果表明：该胶粘剂的玻璃化转变温度（Tg）为-26.9℃;当R=n（-NCO）/n（-OH）=6.5~9.0、w（-NCO）=3.5%、w（环保型PU潜固化剂）=3%和聚醚二元醇是相对分子质量为1 000的PPG210时,PU胶粘剂的黏度适中、固化速率较快和可操作性良好,并且其强度和韧性俱佳。With polyether diol （PPG）, modified MDI （4,4＇ -diphenyl methane diisocyanate ）, PAPI （multi - methylene muhi-phenyl muhi-isoeyanate）, 1,4-BDO（1,4 -butanediol） and environment-friendly polyurethane（PU） latent curing agent as main raw materials,an one-component PU adhesive with solvent-free was prepared by prepolymer metheods. The research results showed that the glass transition temperature（Ts） of adhesive was -26.9℃. The PU adhesive with moderate viscosity, faster curing speed and good maneuverability,had both good strength and good toughness when R values or molar ratios of n（-NCO）/n（-OH） were 6.5-9.0,mass fractions of -NCO and environment-friendly PU latent curing agent were 3.5% and with molecular weight for 1 000. 3% respectively,and polyether diol was a PPG210

关 键 词：无溶剂 单组分 聚氨酯 胶粘剂 

分 类 号：TQ433.432[化学工程]