KH550改性凹凸棒土对纸张性能影响研究  

Performance of Attapulgite Modified with Silane Coupling Agent KH550 on Paper Properties

作　　者：郁骏[1,2] 曹云峰[1,2] 皮成忠[1,2] 刘祝兰[1,2] 

机构地区：[1]南京林业大学江苏省制浆造纸科学与技术重点实验室,江苏南京210037 [2]南京林业大学江苏省林业资源高效加工利用协同创新中心,江苏南京210037

出　　处：《纤维素科学与技术》2016年第2期33-38,共6页Journal of Cellulose Science and Technology

基　　金：江苏高校优势学科建设工程资助项目

摘　　要：使用硅烷偶联剂KH550对凹凸棒土进行湿法改性,探讨KH550改性对凹凸棒土和纸张性能的影响,研究发现,KH550以共价结合形式修饰在凹凸棒土表面,可以提高凹凸棒土的分散性能,降低颗粒的表面电荷。与未改性凹凸棒土相比,改性后的凹凸棒土可以提高纸张的填料留着率、白度、不透明度、抗张指数和撕裂指数。The attapulgite was wet modified by using silane coupling agent KH550. The effects of KH550 modification on attapulgite and properties of paper were studied. The results showed that silane coupling agent KH550 modified the surface of attapulgite through covalent binding. This modification improved the dispersion performance and reduced the surface charge of attapulgite. Compared with the raw attapulgite, KH550 modification helped to improve the filler retention, paper whiteness, opacity, tensile index and tearing index.

关 键 词：KH550 凹凸棒土 光学性能 机械性能 

分 类 号：TS72[轻工技术与工程—制浆造纸工程]