蓖麻油型水性聚氨酯的制备及其在纸张表面增强中的应用  

Preparation of castor oil-based waterborne polyurethane and its application in paper surface enhancing

作　　者：樊慧明[1] 马雅琦[1] 

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,华南理工大学造纸与污染控制国家工程研究中心,广州510640

出　　处：《中华纸业》2012年第14期6-9,共4页China Pulp & Paper Industry

基　　金：广东省科技计划项目(2011B010300015)

摘　　要：本研究采用自乳化法,以甲苯二异氰酸酯(TDI)、蓖麻油(C.O.)、二羟甲基丙酸(DMPA)、三乙胺(TEA)为原料制备蓖麻油型水性聚氨酯乳液,讨论了溶剂丙酮的加入量对反应体系的影响,TDI和C.O.的摩尔比选择2.5～4.0,DMPA的用量选择10.0%～12.1%,可制得性能良好的乳液。将制得的产品用于静电复印纸原纸的表面增强,可以将纸张的干拉毛速度从原来的0.81m/s提高到2.86m/s。A castor oil-based waterborne polyurethane was synthesized by a ＂inner emulsification＂ method using toluene diisocyanate （TDI）, castor oil （C.O.）, dimethylol propionic acid （DMPA） and triethyl amine （TEA）. The influence of dosage of acetone on reaction system was discussed. The results show that when the ratio of TDI/C.O. is 2.5-4.0, dosage of DMPA 10%--12.1%, the polyurethane emulsion with good properties can be prepared, which was applied in surface enhancing for electrostatic copying paper, showing a good surface enhancing effect, picking speed of paper surface increased to 2.86 m/s from 0.81m/s.

关 键 词：蓖麻油 水性聚氨酯 表面增强 

分 类 号：TS727[轻工技术与工程—制浆造纸工程]