纳米TiO_2改性造纸涂料的性能及其流变行为  

Properties and Rheological Behavior of Paper Coatings Modified by Nano-TiO_2

作　　者：尤鹏[1,2] 吕新莲[3] 杨飞[1] 杨仁党[1] 陈克复[1] 

机构地区：[1]华南理工大学广东省造纸技术与装备公共实验室 [2]青岛科技大学化工学院,山东青岛266042 [3]青岛科技大学环境与安全工程学院,山东青岛266042

出　　处：《中国造纸》2008年第11期5-9,共5页China Pulp & Paper

摘　　要：研究了纳米TiO2改善造纸涂料的性能及添加纳米TiO2对涂布纸涂层抗老化性能的影响。结果表明:纳米TiO2用量为1.0份时能够较好地提高涂层的耐光性能,经光老化后,涂布纸白度和表面强度分别降低了9.6%和13.5%,而不添加纳米TiO2的涂层,白度和表面强度分别降低了17.1%和16.7%。通过流变性实验,分析了添加纳米TiO2涂料的流变行为。研究了纳米TiO2改善造纸涂料的性能及添加纳米TiO2对涂布纸涂层抗老化性能的影响。结果表明:纳米TiO2用量为1.0份时能够较好地提高涂层的耐光性能,经光老化后,涂布纸白度和表面强度分别降低了9.6%和13.5%,而不添加纳米TiO2的涂层,白度和表面强度分别降低了17.1%和16.7%。通过流变性实验,分析了添加纳米TiO2涂料的流变行为。In this research, the characteristics of paper coatings adding nano-TiO2 and the effect of nano-TiO2 on anti-aging properties of coated paper were investigated. The results indicated that the lightfastness property of coated paper is significantly improved by adding 1.0 parts of nano- TiO2, and the brightness and surface strength of coated paper only decrease by 13.5% and 9.6% compared with 17.1% and 16.7% of control coated paper, respectively. The effect of nano-TiO2 on rheological properties of coatings was studied by rheological experiments and the continuous equations of rheology theory were applied to analyze the rheological behavior of the coatings adding nano-TiO2.

关 键 词：纳米材料 造纸涂料 耐光性能 流变性能 临界剪切速率 

分 类 号：TB383.1[一般工业技术—材料科学与工程]