中国造纸学报2012，Vol.27Issue(3)：19-24,6.
纸张干法涂料的制备及其性能研究
Perparation and Characteristics of Water-free Coatings Used in Dry Surface Treatment of Paper
摘要
Abstract
Poly( methyl methacrylate/butyl acrylate)/nano-CaCO3 (PMMA/BA/CaCO3) water-free coatings were prepared via free radical copolymerization of MMA and BA in the presence of nano-calcium carbonate as pigment in super critical carbon dioxide (sc-CO2). Then, the ( PMMA-BA)/nano-CaCO3 water-free coatings were used in the dry surface treatment ( DST) of paper. The reaction conditions of copolymerization were researched, and the characteristics of the water-free coatings were studied by using FT-IR, SEM, TGA and DSC. The experimental results showed that the molecular weight of copolymer decreased and molecular weight distribution became wide with the increase of BA monomer concentration, and the copolymerization conversion rate was higher and reached to about 80% when the reaction temperature was 75tl , the reaction time 10 h, and the mass ratio of MMA/BA between 84/16 and 76/24, meanwhile the molecular weight of copolymer was (2. 7 ~ 3. 6)×104, which was suitable for DST of paper. The glass-transition temperature of water-free coatings decreased with the increase of BA monomer concentration, therefore, an ideal glass-transition temperature of water-free coatings could be achieved by adjusting the mass ratio of MMA to BA.关键词
超临界流体/甲基丙烯酸甲酯/丙烯酸丁酯/玻璃化转变温度/无水相涂料Key words
super critical fluid/ methyl methacrylate/ butyl acrylate/ glass-transition temperature/ water-free coating分类
轻工纺织引用本文复制引用
杨仁党,陈国伟,廖旭深,杨飞,戚朝荣..纸张干法涂料的制备及其性能研究[J].中国造纸学报,2012,27(3):19-24,6.基金项目
华南理工大学制浆造纸工程国家重点实验室开放基金(201022) （201022）
亚热带建筑科学国家重点实验室开放基金(2010kb21)和广东省产学研重点项目即基于建筑节能与设计技术要求的环保复合轻质墙材的研发(2010A090200073). （2010kb21）
