摘要
以漂白针叶木浆为纤维原料,在打浆度为89°SR,助剂聚酰胺多胺环氧氯丙烷(PAE)、烷基烯酮二聚体(AKD)、阳离子淀粉添加量分别为2.0%、0.4%、1.0%(相对绝干浆质量)的条件下,制备定量为(40±2)g/m^(2)的涂布原纸,然后通过表面涂布液体石蜡制备植物纤维基地膜纸,提高地膜纸的透光率、抗水性,降低透气度。结果表明:液体石蜡的最佳涂布量为7 g/m^(2),涂布后样品的定量为48.16 g/m^(2),干抗张指数为70.91 N·m/g,撕裂指数为5.99 mN·m^(2)/g,耐破指数为5.12 kPa·m^(2)/g,透光率为82.82%,透气度为0.0030μm/Pa·s,300 s之后的可勃值为15.8 g/m^(2);在水中浸泡12 h后,涂布后样品的湿强度比未涂布样品提高14.34%。
In our present study,bleached softwood pulp was used as fiber raw material with a beating degree of 89°SR,and the addition amount of additives polyamide polyamine epichlorohydrin(PAE),alkyl ketene dimer(AKD),and cationic starch,2.0%,0.4%and 1.0%(based on dry pulp quality),respectively,to prepare(40±2)g/m^(2) coated base paper.Then the plant fiber base film paper was prepared by coating liquid paraffin on the surface to improve the light transmittance,water resistance and reduce air permeability of the film paper.The results showed that the optimal coating amount of liquid paraffin was 7 g/m^(2),the quantitative amount was 48.16 g/m^(2),the dry tensile index was 70.91 N·m/g,the tear index was 5.99 mN·m^(2)/g,and the break resistance index was 5.12 kPa·m^(2)/g.The transmittance was 82.82%and the air permeability was 0.0030μm/Pa·s.The Cobb value after 300s was 15.8g/m^(2).After soaking in water for 12 h,the wet strength of the coated sample was increased by 14.34%than that of the uncoated sample.
作者
杨维红
刘忠
朱荣耀
刘晓岚
杨博文
姚娜
YANG Weihong;LIU Zhong;ZHU Rongyao;LIU Xiaolan;YANG Bowen;YAO Na(Tianjin Key Laboratory of Pulp and Paper,College of Light Industry Science and Engineering,Tianjin University of Science&Technology,Tianjin 300457,China)
出处
《天津科技大学学报》
CAS
2024年第3期28-34,80,共8页
Journal of Tianjin University of Science & Technology
基金
国家重点研发计划资助项目(2022YFC2105503)
关键词
漂白针叶木浆
植物纤维基地膜纸
涂布
液体石蜡
bleached softwood pulp
plant fiber base membrane paper
coating
liquid paraffin
作者简介
杨维红(1996-),女,山东潍坊人,硕士研究生;通信作者:刘忠,教授,mglz@tust.edu.cn。
