酰胺类化合物改性印刷装饰纸用干酪素水性油墨  

Amide-modified casein water-based ink for printed decoration paper

作　　者：石富林 张明昌 刘如[1] 龙玲[1] 董晓英[2] 李新育 Shi Fulin;Zhang Mingchang;Liu Ru;Long Ling;Dong Xiaoying;Li Xinyu(Research Institute of Wood Industry,Chinese Academy of Forestry,Beijing 100091,China;College of Forestry,Shandong Agricultural University,Tai’an 271018,Shandong,China;Guangdong T&H New Material Co.Ltd.,Foshan 528137,Guangdong,China)

机构地区：[1]中国林业科学研究院木材工业研究所,北京100091 [2]山东农业大学林学院,山东泰安271018 [3]广东天元汇邦新材料股份有限公司,广东佛山528137

出　　处：《北京林业大学学报》2024年第11期148-156,共9页Journal of Beijing Forestry University

基　　金：国家自然科学基金项目(32271793)。

摘　　要：【目的】为了解决传统装饰纸水性油墨耐水性差及其印刷装饰纸浸胶量不高的问题,通过化学改性制备出一种酰胺类化合物改性干酪素水性油墨。【方法】采用己内酰胺(CPL)、羟甲基丙烯酰胺(NMA)和双丙酮丙烯酰胺(DAAM)改性干酪素制备出改性干酪素乳液,并制备出相应的水性油墨和印刷装饰纸。通过测试改性干酪素及其相应水性油墨和印刷装饰纸的性能,分析水性油墨的耐水性和印刷装饰纸浸胶量的变化,并探讨CPL、NMA和DAAM联合改性干酪素机制。【结果】加入改性剂后,干酪素体系中引入大量氨基,干燥后可形成致密的膜。改性干酪素乳液的Zeta电位为-45.0 mV,黏度为1482 mPa·s,水接触角为14.2°,浸泡40 min后残留率为80.5%;改性干酪素膜的水蒸气透过率为586.0 g/(m2·24 h),明显低于干酪素膜。改性干酪素水性油墨印刷装饰纸的耐水性明显提升,且浸胶量高于市购干酪素水性油墨印刷装饰纸。在210℃下,该印刷装饰纸的色差ΔE<1,其颜色未发生变化。【结论】较未改性干酪素,CPL、NMA和DAAM联合改性干酪素的耐水性和耐热性都有很大提升,且印刷装饰纸的浸胶量能够满足生产需求。[Objective]In order to solve the problem of low water resistance of traditional water-based inks for decoration paper and low impregnation resin amount of printed decoration paper,an amide compound modified casein water-based ink was prepared by chemical modification.[Method]Caprolactam(CPL),hydroxymethacrylamide(NMA)and diacetone acrylamide(DAAM)were used to co-modify casein to prepare modified casein emulsions,and the corresponding water-based inks and printed decoration papers were also prepared.By testing the properties of modified casein and the corresponding water-based inks and printed decoration papers,the changes in water resistance of water-based inks and impregnation resin amount of printed decoration papers,as well as the mechanism of the combined modification of casein by CPL,NMA and DAAM were analyzed.[Result]After adding the modifier to casein,a large number of amino groups were introduced into casein system,and a dense film could be formed after drying.The Zeta potential of modified casein emulsion was-45.0 mV,with the viscosity of 1482.0 mPa·s,water contact angle of 14.2°,and soaking residual rate for 40 min of 80.5%.The water vapor transmission rate of modified casein film was 586.0 g/(m2·24 h),and its water permeability was significantly lower than that of casein film.Therefore,the water resistance of modified casein water-based ink printing decoration paper was significantly improved.There was no loss after soaking for 40 min,and the impregnation amount of printed decoration paper was higher than that of commercially purchased casein water-based ink.At 210℃,the color differenceΔE<1,the color of printed decoration paper showed little change.[Conclusion]Compared with unmodified casein,the water and heat resistance of CPL,NMA and DAAM co-modified casein can be greatly improved,and the impregnation amount of printed decoration paper can meet the production requirements.

关 键 词：纸 油墨 化学改性 氨基化合物 干酪素 印刷装饰纸 浸胶量 耐水性 

分 类 号：TQ617.5[化学工程—精细化工]