多糖-植物蜡-纳米二氧化硅防水防油包装纸制备与性能  

Preparation and performance of water and oil-resistant packaging paper based on polysaccharide-vegetable wax-nano-SiO2

作　　者：朱瑞丰 龙柱 覃程荣[2] 吕文志 郑辉 王志英 ZHU Ruifeng;LONG Zhu;QIN Chengrong;LV Wenzhi;ZHENG Hui;WANG Zhiying(Laboratory of Papermaking,School of Textiles&Clothing,Jiangnan University,Wuxi 214000,China;Key Laboratory of Clean Pulp&Papermaking and Pollution Control,Guangxi University,Nanning 530004,China;College of Chemistry and Chemical Engineering,Qiannan Normal University for Nationalities,Duyun 558000,China;Hetrun New Materials(Guangdong)CO.,LTD.,Guangzhou 511470,China)

机构地区：[1]江南大学纺织科学与工程学院,造纸研究室,无锡214000 [2]广西大学清洁化制浆造纸与污染控制重点实验室,南宁530004 [3]黔南民族师范学院化学化工学院,都匀558000 [4]旭川新材料(广东)股份有限公司,广州511470

出　　处：《复合材料学报》2023年第4期2107-2118,共12页Acta Materiae Compositae Sinica

基　　金：广西大学清洁化制浆造纸与污染控制重点实验室开放基金(2019KF03);贵州省科技厅科技支撑计划项目(20192860);贵州省教育厅普通高等学校科技拔尖人才支持计划项目(2018079)。

摘　　要：随着社会的发展,人们对无毒环保食品包装材料的需求不断增加。现阶段,兼顾防水防油性能的无氟食品包装纸研究较少。本文以壳聚糖溶液与海藻酸钠溶液为原料,通过阿魏酸交联制备复合防油剂,并涂布在食品包装原纸上,制备防油纸;然后以巴西棕榈蜡与纳米二氧化硅为原料,制备复合防水剂,采用浸渍的方法,制备防水防油纸,探究不同配比及涂布量对纸张防水防油效果与纸张性能的影响。结果表明:当壳聚糖与海藻酸钠复配质量比为8∶2、涂布量为4 g/m^(2)时,防油纸可达到最高防油等级(12级);当巴西棕榈蜡与纳米二氧化硅复配质量比为4∶3、浸渍量为3 g/m^(2)时,纸张表面吸水量(Cobb)值为5.93 g/m^(2),水接触角为158.40°,显著提升了原纸的防油性能与防水性能。此外,与未涂布纸相比,防水防油纸的抗张强度提升了30%,透气度下降了60%。本文制备工艺简单、原材料无氟环保、纸张防水防油性能较好,有望在食品包装得到应用。With the development of society,the demand for non-toxic and environmentally friendly food packaging materials has been increasing.At this stage,there are few studies on fluorine-free food packaging paper that take into account both water and oil resistance.In this study,a compound oil-proof agent was prepared by cross-linking chitosan solution and sodium alginate solution with ferulic acid,and coated on the food packaging base paper to prepare oil-resistant paper.Then a compound water-proof agent was prepared by using carnauba wax and silica nanoparticles as raw materials,water and oil-resistant paper was prepared by dipping method,and investigated the effects of different mass ratios and coating amounts on the water and oil resistant effect of paper and paper performance.The results show that when the compound mass ratio of chitosan and sodium alginate solution is 8∶2 and the coating amount is 4 g/m^(2),the oil-resistant paper can reach the highest oil-proof grade(grade 12).When the compound mass ratio of carnauba wax and silica nanoparticles is 4∶3 and the dipping amount is 3 g/m^(2),the water absorption of paper surface(Cobb)value of the paper is 5.93 g/m^(2)and the water contact angle is 158.40°,which significantly improves the water and oil-resistant performance of the base paper.In addition,compared with the base paper,the tensile strength of the water and oil-resistant paper shows a raise of 30%and the air permeability shows a reduction of 60%.In short,the preparation process of this study is simple,the raw materials are fluorine-free and environmentally friendly and the coated paper shows better water and oil resistance,which is expected to be applied in food packaging.

关 键 词：生物基聚合物 无氟环保 防水防油 涂布 食品包装纸 

分 类 号：TB332[一般工业技术—材料科学与工程]