纺织学报 ›› 2017, Vol. 38 ›› Issue (11): 22-26.doi: 10.13475/j.fzxb.20170501705

• 纤维材料 • 上一篇    下一篇

摩擦驻极对聚四氟乙烯纤维非织造布过滤性能的影响

  

  • 收稿日期:2017-05-05 修回日期:2017-07-29 出版日期:2017-11-15 发布日期:2017-11-15

Filtration performance of polytetrafluoroethylene fiber electret fabric charged by tribo-electrically

  • Received:2017-05-05 Revised:2017-07-29 Online:2017-11-15 Published:2017-11-15

摘要:

为研究聚四氟乙烯(PTFE)纤维在加工过程中的摩擦效应所产生的静电荷对非织造材料过滤效率的影响机制,制备高效低阻的非织造过滤材料。选取PTFE纤维为原料,经过短纤梳理、针刺复合的方式制备了不同克重的PTFE纤维针刺非织造布,测试了摩擦驻极后0~40 d 内非织造布的表面静电势以及过滤性能,并分析了针刺非织造布的电荷存储稳定性。结果表明:经过梳理、针刺加工的PTFE纤维非织造布具有很高的过滤效率和较低的过滤阻力;面密度越大,非织造布的表面电势越大,过滤效率越高,面密度为220 g/m2的PTFE纤维摩擦驻极过滤材料对0.26μm颗粒物的过滤效率可达99%以上,并且静电衰减周期较长;水浸泡对静电衰减的影响较小。

关键词: 聚四氟乙烯纤维, 针刺, 摩擦起电, 驻极, 静电衰减, 过滤

Abstract:

In order to study the effect mechanism of static charge generated by friction in the process on the filtration efficiency of PTFE (polytetrafluoroethylene) fiber nonwoven materials, and prepare high filtration efficiency, a low-resistance nonwoven filter material, PTFE-fiber was selected as the raw material, the puncture nonwoven fabric with different weight were prepared by staple combing and acupuncture. The surface electrostatic potential and the filtration performance of the nonwovens were measured in the range of 0 to 40 days after tribo-charging, and the charge storage stability of acupuncture nonwovens was analyzed. The results show that the PTFE-fiber nonwoven fabric treated by carding and needle punching process have high filtration efficiency and low- resistance. The higher the weight is, the higher the surface potential and the filtration efficiency of the nonwovens. PTFE-fiber filter material charged by taibo-electric with the weight of 220 g/m2 can capture more than 99% particles of 0.26μm, and the electrostatic decay cycle is longer. Water soaking gas little linfluence on the static decay.

Key words: polytetarfluoroethylene fiber, needling, tribo-electric charging, electret, static charge decay, filtration

[1] Rashmi Thakur,Dipayan Das,Apurba Das.Electret Air Filters [J]. Separation and Purification Reviews.2013 (42):87-129 [2] 谢小军,黄翔,狄育慧.驻极体空气过滤材料静电驻极方法初探[J].洁净与空调技术.2005,(2):41-44 XIE X J, HUANG X, DI Y H. Disussion of Electret Air Filtration Material Utilizing Electrostatic Electret [J].Con tamination Control & Air-Con ditioning Technology, 2005,(2):41-44 [3] Yopa Prawatya, Bogdan Neagoe, Thami Zeghloul, et al.Comparison between the surface-electric-potential characteristics of tribo- and corona-charged polymers[C]. Industry Applications Society Annual Meeting, 2015 IEEE, 18-22 Oct. 2015 [4] 田涛,吴金辉,郝丽梅,等.聚丙烯纤维驻极体滤材的储电性能[J],纺织学报,2010,31(6):25-28 TIAN T,WU J H,HAO L M,et al.Research on charge storage properties of polypropylene fiber electret filter[J].Journal of Textile Research, 2010, 31 (6): 25-28(in Chinese). [5] 周晨,徐熊耀,靳向煜. ES 纤维热风非织造布驻极性能初探[J].纺织学报, 2012,33(9) :66-70 ZHOU C,XU X Y,JIN X Y. Exploration of electrets property of area bonded ES-fiber fabric [J]. Journal of Textile Research, 2012,33(9) : 66-70(in Chinese). [6] 任煜,李猛,尤祥银.驻极处理对聚乳酸熔喷材料性能的影响[J],纺织学报,2015,36(9):13-17 REN Y,LI M,YOU X Y. Influence of corona electret treatment on melt-blow PLA nonwovens material[J], Journal of Textile Research, 2015,36 (9):13-17( in Chinese). [7] 陈明宏. 用在气体过滤中的带电纤维[J]. 产业用纺织品,1990,(04):45-16. CHEN M H. Charged fibers for gas filtration[J].Technical Textiles,1990,(04):45-16. [8] P.A. SMITH, G.C. EAST. Generation of triboelectric charge in textile fibre mixtures, and their use as air filters[J]. Journal of Electrostatics, 1988,21(1):81-98. [9] Richard Auger, Beauce.Triboelectric air filter.United States Patent[P]. US 6,328,788 B1,2001-11-11 [10] 王洪,刘明奇,吴海波.带电针刺过滤材料的研究[J].产业用纺织品,2014(9):17-21 WANG H,LIU M Q,WU H B.Study on the triboelectric charged needle-punched nonwoven filtration materials[J]. Technical Textiles, 2014 (9):17-21(in Chinese). [11] Peter P. Tsai, Heidi Schreuder-Gibson, Phillip Gibson. Different electrostatic methods for making electret filters[J].Journal of Electrostatics, 2002:54(3-4):333-341. [12] 陈锡勇,陶建勤,李淑芳.PTFE 短纤维性能与梳理工艺浅析[J].产业用纺织品,2010(9): 34-36. CHEN X Y, TAO J Q ,LI S F. Brief analysis on PTFE staple performance and carding technique[J]. Technical Textiles, 2010(9): 34-36 (in Chinese). [13] 袁亚飞.电子工业静电防护技术与管理[M].北京:中国宇航出版社,2013:80-99. YUAN Y F. Electrostatic protection technology and management of the electronics industry[M]. Beijing: China Aerospace Press, 2013: 80-99. [14] T Zeghloul, M B Neagoe, Y E Prawatya, et al.Triboelectrical charge generated by frictional sliding contact between polymeric materials[J].IOP Conference Series: Materials Science and Engineering, 2017,174: 1757-8981. [15] 陆承祖,王克起.静电原理及防灾[M].天津:天津大学出版社,1991:68-79. LU C Z,WANG K Q.Electrostatic principle and disaster prevention[M].Tianjin:Tianjin University Press, 1991: 68-79 [16] 陈钢进,肖慧明,王耀翔.聚丙烯非织造布的驻极体电荷存储特性和稳定性[J].纺织学报,2007,28(9): 125-128 CHEN G J, XIAO H M,WANG Y X.Charge characteristics and stability of nonwoven polypropylene fabric electrets[J].Journal of Textile Research,2007,28(9):125-128(in Chinese) [17] Hyun-Jin Choi, Eun-Seon Park, Jeong-Uk Kim, et al.Experimental study on charge decay of electrets filter due to organic solvent exposure[J]. Aerosol Science and Technology,2015,49:977-983.

[1] 朱金铭 钱建华 曹晨 曹原. 聚醚砜非织造布复合膜的空气过滤性能[J]. 纺织学报, 2018, 39(07): 55-62.
[2] 金关秀 张毅 楼永平 祝成炎. 应用粗糙集和支持向量机的熔喷非织造布过滤性能预测[J]. 纺织学报, 2018, 39(06): 142-148.
[3] 王迎 杨云 魏春艳 宋欢 季英超 孙玉雍 张欣. 沉积静电纺聚丙烯腈纳米纤维膜窗纱的制备及其性能[J]. 纺织学报, 2018, 39(04): 14-18.
[4] 于宾 赵晓明 漆东岳. 腈纶预氧化丝/芳纶针刺滤材的性能[J]. 纺织学报, 2018, 39(03): 61-66.
[5] 陈锋 姬忠礼 齐强强. 静电纺聚丙烯腈纳米纤维复合滤材的制备及其气液过滤性能[J]. 纺织学报, 2017, 38(09): 8-13.
[6] 申莹 邓炳耀 刘庆生 夏赛男 姚鹏飞. 不同填充密度的梯度结构复合滤材的制备及其性能[J]. 纺织学报, 2017, 38(07): 23-27.
[7] 宋磊磊 赵玉芬 李嘉禄 陈利 耿伟. 基于混合韦伯分布的碳纤维针刺毡结构表征[J]. 纺织学报, 2017, 38(06): 52-57.
[8] 冯雪 汪滨 王娇娜 李从举. 空气过滤用聚丙烯腈静电纺纤维膜的制备及其性能[J]. 纺织学报, 2017, 38(04): 6-11.
[9] 赵伟伟 汪滨 王娇娜 裴广玲 李从举. 静电纺聚酰胺6纳米纤维膜的制备及其性能[J]. 纺织学报, 2017, 38(03): 6-12.
[10] 余改丽 张弘楠 张娇娇 左晓飞 覃小红. 高效低阻聚丙烯腈/石墨烯纳米纤维膜的制备及其抗菌性能[J]. 纺织学报, 2017, 38(02): 26-33.
[11] 钟文鑫 冒海文 岳亚丹 仲柏俭 张新杰 喻颖 马丕波. 经编结构静电阻隔织物的设计与开发[J]. 纺织学报, 2017, 38(02): 106-110.
[12] 钱幺 赵宝宝 钱晓明. 强制静电下导电滤料的过滤效率[J]. 纺织学报, 2016, 37(12): 55-59.
[13] 刘雷艮 潘志娟 牛建涛. 壳聚糖改性静电纺聚砜纤维膜对染料的过滤性能[J]. 纺织学报, 2016, 37(10): 1-7.
[14] 王敏 韩建 于斌 朱斐超 Solitario Nesti 宋卫民. 双组分橘瓣型纺粘水刺材料的过滤和力学性能[J]. 纺织学报, 2016, 37(09): 16-20.
[15] 殷依华 于斌 韩建. 后处理工艺对聚苯硫醚滤料清灰性能的影响[J]. 纺织学报, 2016, 37(08): 16-20.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!