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现代化工  2019, Vol. 39 Issue (2): 136-139    DOI: 10.16606/j.cnki.issn0253-4320.2019.02.030
  科研与开发 本期目录 | 过刊浏览 | 高级检索 |
梯度孔隙结构二醋酸纤维复合滤料的制备及过滤性能
陈亚君, 汪帝, 李大伟, 魏取福
江南大学生态纺织教育部重点实验室, 江苏 无锡 214122
Fabrication of cellulose diacetate composite filter material with pore diameter gradient structure and filtration performance
CHEN Ya-jun, WANG Di, LI Da-wei, WEI Qu-fu
Key Laboratory of Eco-Textiles of the Ministry of Education, Jiangnan University, Wuxi 214122, China
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摘要 采用静电纺丝技术制备了多孔和无孔二醋酸纳米纤维,并将其按照不同比例先后沉积于聚丙烯(PP)纺粘非织造布上,制备出具有梯度孔隙结构的复合滤料。通过改变多孔二醋酸纤维的纺丝时间调控2种纤维的比例,探究了不同纤维比例下滤料的过滤性能。当无孔/多孔纺丝液体积比为1/1时,复合滤料的品质因数最高,达到0.084 Pa-1,此时对2 μm及以上粒子的过滤效率达到99.57%,过滤阻力仅为65 Pa,达到了一级PM2.5防护口罩的标准。
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陈亚君
汪帝
李大伟
魏取福
关键词:  静电纺丝  二醋酸纤维  梯度孔隙  过滤性能    
Abstract: Porous and nonporous cellulose diacetate fibers are prepared in different spinning solution system by electro-spinning.They are in turn deposited in accordance with different proportions onto a layer of PP spun-bond non-woven to make composite filter materials with pore diameter gradient structure.The different ratio between porous and nonporous fibers in filter materials are adjusted by changing spinning time of cellulose porous fibers and therefore the filtration performance of filter materials with different ratios are explored.It is shown that the quality factor of composite filter materials has the maximum value,0.084 Pa-1 when the ratio between porous and nonporous spinning solution dosage is 1:1.Besides,the filtration efficiency of such filter materials can reach 99.57% against the particles with a diameter not less than 2 μm while the filtering resistance is 65 Pa only,meeting the demand for grade first PM2.5 protecting mask.
Key words:  electro-spinning    cellulose diacetate fiber    pore diameter gradient    filtration performance
收稿日期:  2018-05-17      修回日期:  2018-12-10          
ZTFLH:  TQ341+.2  
基金资助: 江苏高校优势学科建设工程资助项目(苏政办发[2014]37号);江苏省产学研联合创新基金前瞻性研究项目(BY2016022-03)
通讯作者:  魏取福(1964-),男,博士,教授,研究方向为功能纳米材料,通讯联系人,qfwei@jiangnan.edu.cn。    E-mail:  qfwei@jiangnan.edu.cn
作者简介:  陈亚君(1995-),女,硕士研究生,研究方向为功能纳米材料,m18861824955@163.com
引用本文:    
陈亚君, 汪帝, 李大伟, 魏取福. 梯度孔隙结构二醋酸纤维复合滤料的制备及过滤性能[J]. 现代化工, 2019, 39(2): 136-139.
CHEN Ya-jun, WANG Di, LI Da-wei, WEI Qu-fu. Fabrication of cellulose diacetate composite filter material with pore diameter gradient structure and filtration performance. Modern Chemical Industry, 2019, 39(2): 136-139.
链接本文:  
http://www.xdhg.com.cn/CN/10.16606/j.cnki.issn0253-4320.2019.02.030  或          http://www.xdhg.com.cn/CN/Y2019/V39/I2/136
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