阳离子淀粉包覆改性氢氧化铝在阻燃牛皮纸中的应用  

The application of cationic starch coated modified aluminum hydroxide in flame retardant kraft paper

作　　者：徐永建 李雯晶 章琳丽 殷学风 XU Yong-jian;LI Wen-jing;ZHANG Lin-li;YIN Xue-feng(College of Bioresources Chemical and Materials Engineering,Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper,Key Laboratory of Paper Based Functional Materials of China National Light Industry,National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi University of Science&Technology,Xi′an 710021,China)

机构地区：[1]陕西科技大学轻工科学与工程学院/陕西省造纸技术及特种纸品开发重点实验室/中国轻工业纸基功能材料重点实验室轻化工程国家级实验教学示范中心,陕西西安710021

出　　处：《陕西科技大学学报》2024年第6期1-7,共7页Journal of Shaanxi University of Science & Technology

基　　金：国家自然科学基金项目(21978161);陕西省科技计划项目-重点项目(2017ZDXM-GY-045)。

摘　　要：采用阳离子淀粉包覆改性氢氧化铝(ATH),并将其用于阻燃牛皮纸的抄造.结果表明:加填改性ATH可提高牛皮纸的阻燃性能.在SATH 3添加量50%时,牛皮纸的极限氧指数从19.5%提高至25.3%,阻燃等级提高到B1.同时包覆改性可有效提高ATH的Zeta电位,提高其在湿法抄造时的留着率.此外,阳离子淀粉包覆改性还提高了ATH与纤维之间的附着力,并改善牛皮纸的物理性能.与加填ATH牛皮纸相比,加填改性ATH的牛皮纸的抗张指数和耐破指数分别提高了17.83%和3.9%.另外,加填改性ATH的牛皮纸具有良好的亲水性和吸收性,对后续施胶等工艺不会产生负面影响.显然,通过ATH的阳离子包覆改性可有效改善其在湿法抄造时的留着率,并提高其与纤维之间的结合,可为ATH在阻燃牛皮纸中的应用提供了新的思路.The modified aluminum hydroxide(ATH)coated with cationic starch was used in the manufacture of flame retardant kraft paper.The results show that filling modified ATH can effectively improve the flame retardancy of kraft paper.When SATH 3 is added 50%,the limiting oxygen index(LOI)of kraft paper is increased from 19.5%to 25.3%,and the flame retardant grade is increased to B1.Meanwhile,coating modification can effectively increase the Zeta potential of ATH and improve its retention rate during wet manufacturing.In addition,cationic starch coating modification also enhances the adhesion between ATH and fibers,and improves the physical properties of kraft paper.Compared with ATH kraft paper,the tensile index and break index of modified ATH kraft paper were increased by 17.83%and 3.9%.Moreover,the kraft paper filled with modified ATH has good hydrophilicity and absorption,which will not have a negative impact on subsequent gluing and other processes.Obviously,the cationic coating modification of ATH can effectively improve the retention of ATH in wet manufacturing and enhance the bond between ATH and fibers,providing a new ideas for the application of ATH in flame retardant kraft paper.

关 键 词：氢氧化铝(ATH) 包覆改性 阻燃牛皮纸 阳离子淀粉 阻燃 

分 类 号：TS753.9[轻工技术与工程—制浆造纸工程]