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- 저자 : Yinchun Fang (검색결과 2 건)
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Preparation and Properties of Antistatic Polyethylene Film Coated Polypropylene Non-woven Fabrics
Zongqian Wang,Dengfeng Wang,Yinchun Fang,Jieliang Shen 한국섬유공학회 2018 Fibers and polymers Vol.19 No.5
In this paper, antistatic PE/PP coated non-woven fabrics were prepared by the coating process of the antistatic finished PE films and PP non-woven fabrics using the heat pressing process of the hot melt adhesives. The antistatic finishing of polyethylene (PE) films and polypropylene (PP) non-woven fabrics were processed by one face foam finishing and dippad finishing process, respectively. The antistatic properties of PE/PP coated non-woven fabrics which were influenced by the antistatic finishing processes and the thickness of PE films were investigated. The static charges transmission mechanism of these coated non-woven fabrics was illustrated. The results revealed that the static charges were transferred and dissipated by forming the continuous conductive path and network between the film-adhesive and adhesive-fabric due to the hot melt adhesion and squeezing of the antistatic agents existing inside of of the non-woven fabrics matrix and on the film surface. The antistatic properties of coated non-woven fabrics were improved with the increasing of the antistatic agent concentration on the finishing solution. And the antistatic properties of PE films were greatly influenced by the film thickness, the thinner of PE films the much more obvious improvement of the film surface antistatic properties. The finishing process wouldn’t reduce the peeling strength of the coated non-woven fabrics. The antistatic properties of the PE/PP coated non-woven fabrics possessed high washing durability due to the crosslinking fixation effect of the hot melt adhesives which wouldn’t be weakened after several times washing.
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Zongqian Wang,Haiwei Yang,Ning Pan,Wei Li,Yanxia Xie,Zhi Liu,Yinchun Fang 한국섬유공학회 2019 Fibers and polymers Vol.20 No.7
Polyethylene/Polypropylene (PE/PP) composite non-woven fabrics have been used widely for surgical packagesdue to its dual features of PE surface and PP surfaces. PP fabric pre-treated by hydrophilic agent provides high waterabsorbency, while PE surface is responsible for high barrier functions. However, the PP water absorbency declines once PEfilm is laminated, and no report devoted to study the extent and the reasons of this declining. Herein, the hydrophilic finishingof the PP non-woven fabrics was processed via Kiss-roll method, then the PE/PP fabrics were obtained using a normal hotmelt adhesive PE film laminating process. The wicking height, water absorption specific gravity (LAC%), static contactangle, as well as the complete wetting time of the finished PP and PE/PP fabric were measured and compared. Meanwhile,the SEM was used to detect the morphology changing. The results revealed that the pores between fibers in the PP nonwovenwere filled with non-hydrophilic hot melt adhesive penetrated during PE lamination, so that the PP structure changedto be less porous. Moreover, the laminated PP layer actually blocks the water flow channel in the system, resulting in theabsorbency reduction after lamination. As a result, comparing with the PP non-woven fabric, the wicking height of the PE/PPfabric decreased by 25.3 %, the LAC % value reduced by 40.83 %, and the complete wetting time extended from 0.29 s to1.74 s.
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