含环氧基水性聚氨酯纸张表面施胶剂的制备及应用  

The preparation and properties of waterborne polyurethane containing epoxy group as paper sizing agent

作　　者：赵艳娜[1] 姬定西[1] 

机构地区：[1]陕西科技大学化学与化工学院轻化工助剂化学与技术省部共建教育部重点实验室,西安710021

出　　处：《功能材料》2015年第10期10119-10122,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(21204046);陕西科技大学学术骨干培育计划资助项目(XSGP201211);陕西省自然科学基金青年基金资助项目(2012JQ6015);陕西省科技统筹创新工程重点实验室资助项目(2013SZS10-K02)

摘　　要：以异佛尔酮二异氰酸酯(IPDI)、聚酯二元醇(PCL1000)、三乙胺(TEA)、二羟甲基丙酸(DMPA)和丙三醇单缩水甘油醚为主要原料,制备了含环氧基的水性聚氨酯树脂。对合成乳液进行了红外光谱(FTIR)和粒度等分析。结果表明,环氧基引入到聚氨酯分子链中。施胶剂应用结果表明,以质量分数为3%的含环氧基的水性聚氨酯(EWPU)乳液进行表面施胶,纸张施胶度达35.5 s,抗张指数达到51.75 N·m/g,耐折度达38次。A kind of waterborne polyurethane containing epoxy group was successfully prepared by the reaction of isophorone diisocyanate( IPDI),poly-caprolactone diol( PCL1000),triethylamine( TEA),2,2-Bis( hydroxymethyl) propionic acid( DMPA) and 1-propanetriol glycidyl ether as the main raw materials. The structure and particle size distribution of waterborne polyurethane were characterized by Fourier transform infrared spectroscopy( FT-IR) and nano-ZS particle sizer. The FT-IR confirmed that the epoxy group had been introduced into the chain of the WPU. Moreover,the applied properties of the paper were measured as follows when the dosage of the sizing agent was 3% paper tensile strength was51. 75 N·m / g,the sizing value of paper was 35. 5 s and folding endurance was 38 times.

关 键 词：环氧基 水性聚氨酯 表面施胶剂 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]