涂料主要组分对涂布纸抗液体渗透性能的影响  

The Influence of Main Components of Coating Color on Penetration-resistance of Coating Paper

作　　者：陈港[1] 方志强[1] 黄婷 刘映尧 

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广东广州510640 [2]中国海诚工程科技股份有限公司,上海200031

出　　处：《中国造纸学报》2008年第2期85-90,共6页Transactions of China Pulp and Paper

基　　金：教育部新世纪优秀人才支持计划(2006);广东省教育部产学研结合项目(2006)资助课题

摘　　要：采用静态渗透性能和动态渗透特性相结合的办法评价了涂布纸的抗液体渗透性能。探讨了颜料中高岭土和碳酸钙的配比、胶黏剂和抗水剂的种类和用量对涂布纸抗渗透性能的影响。研究表明,随着PCC在颜料中比例的增加,润湿性Max值和特征值t95呈相近的变化规律。颜料中高岭土和PCC的比例为60:40时,涂布纸的静滴接触角为62.2°,动态渗透性能参数Max值和t95均最大,此时,涂布纸具有较好的抗水性能和最封闭的表面结构。无论是静态渗透性能还是动态渗透性能,就涂布淀粉、聚乙烯醇(部分醇解型)、羧基丁苯胶乳、丙烯酸胶乳及乙烯-醋酸乙烯共聚物胶乳5种胶黏剂而言,其涂布纸的抗液体渗透性能由强到弱的顺序是:羧基丁苯胶乳>丙烯酸胶乳>乙烯-醋酸乙烯共聚物胶乳>聚乙烯醇(部分醇解型)>涂布淀粉;涂布纸的抗渗透性能受胶乳用量的影响最大。在一定用量范围内,抗水剂可以较大程度地改善涂布纸的抗液体渗透性能。This paper evaluated the anti-liquid-permeability of coating paper by static permeability and dynamic permeability, and the influence of pigment proportion, the type and dosage of binders and water-resistance agents on the anti-liquid-permeability of coating paper was studied. With the increase of the precipitated calcium carbonate dosage, the value of max wettability and t95 eigenvalue presented similarly change rule. When the ratio of the weight of kaolin to precipitated calcium carbonate was 60：40, the static contact angle of coated paper attained to 62.2°, the value of max wettability and t95 were the highest reaching 1.117s and 2.904s respectively. The coated paper has better water-resistant and closed surface structure. When coated starch, carboxyl styrene-butadiene latex （ SBR）, acrylic acid latex, polyvinyl alco- hol （ PVA, partial alcoholysis） and ethylene-vinyl acetate copolymer were added into coating color as binder, SBR used for coated paper has the best liquid resistance. The water-resistant sequence of the binders using in the coated paper was SBR 〉 acrylic acid latex 〉 EVA 〉 PVA （partial alcoholysis） 〉 coated starch, and the dosage of latex can effectively affect the anti-liquid-permeability of coating paper. Water-resistance agents may also have greater improvement on the anti-liquid-permeability of the coating paper in the range of from 0 to 3% by the weight of pigment.

关 键 词：抗渗透性 抗水剂 胶黏剂 颜料 

分 类 号：TS758.1[轻工技术与工程—制浆造纸工程]