中国造纸2018，Vol.37Issue(1)：26-32,7.DOI:10.11980/j.issn.0254-508X.2018.01.005
原纤化过程对纸基空气滤材结构和性能的影响
Study on the Structure and Properties of Cellulose-based Air Filter Material Controlled by Fibrillation
摘要
Abstract
In this research,a novel method for preparing biodegradable cellulose-based air filter materials based on freeze-drying technique to remain fibrillation of the fiber surface and avoid hornification was presented.The plant fibers were chosen as the raw materials and treated by using grinding in different revolutions.The effect of various degree of fibrillation treatment on the structure and properties of cellulose-based air filter materials was investigated.Besides,the influence mechanism of fibrillation treatment on Z direction morphology of filters was also researched.The results demonstrated that the air filter materials behaved the superior filtering performance under the treatment condition of 50000 r grinding revolution、-56℃ freezing temperature and 1.5％ pulp concentration.Furthermore,the fibrillation treatment made more microfibrils remained on the surface of fibers and free hydroxyl groups exposed,which enhanced the interleaving force of fibers and uniformed the pore distribution among materials.In addition,three-dimensional spider-web like structure consisted of microfibrils and fiber back bones could improve interception capacity of air filters for particulate particles.Therefore,the environment-friendly cellulose-based air filter material was fabricated efficiently and controllably.关键词
植物纤维/原纤化处理/冷冻干燥/空气滤材/Z向形貌Key words
plant fiber/fibrillation treatment/freeze-drying/air filter material/Z orientation morphology分类
轻工纺织引用本文复制引用
张美云,马珊珊,杨斌,宋顺喜,鲁鹏,苏治平..原纤化过程对纸基空气滤材结构和性能的影响[J].中国造纸,2018,37(1):26-32,7.基金项目
国家重点研发计划(2017YFB0308300) （2017YFB0308300）
广西清洁化制浆造纸与污染控制重点实验室开放基金(KF201701) （KF201701）
国家自然科学基金(31670593) （31670593）
陕西省重点研发计划项目(2017GY-140) （2017GY-140）
东华大学国家重点实验室开放基金(LK1601). （LK1601）
