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- 저자 : Zongqian Wang (검색결과 4 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,Changlong Li,Hulin Zhang,Zhi Liu 한국섬유공학회 2018 Fibers and polymers Vol.19 No.10
Chromophore incorporated into the protein chains through residue modification on silk fibroin will be an important way to get new dyeing technology with improved color fastness. Herein, 1-aminoanthraquinone diazonium salt was prepared and used for the modified dyeing on tyrosine of silk fibroin. The silk after modified dyeing was measured by UV-Vis, FTIR, MS, 1H-NMR, Data color, and other testing techniques. Interestingly, the resulting silk showed excellent rub and wash fastness. The enhanced color fastness is contributed by an electrophilic substitution reaction between 1- aminoanthraquinone diazonium salt and the ortho position of phenolic hydroxyl in tyrosine molecular. Moreover, the mechanical property of silk was protected effectively by the mild coupling modified dyeing, better than the traditional acid dyeing under high temperature for a long time. This facile strategy provides an alternative approach to silk dyeing and benefits the silk applications.
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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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Wei Li,Zhenzhen Xu,Zongqian Wang,Changlong Li,Quan Feng,Yanan Zhu 한국섬유공학회 2018 Fibers and polymers Vol.19 No.7
To investigate the effects of tertiary amination/hydroxypropylsulfonation on the adhesion-to-fibers and film properties of corn starch for warp sizing, a series of tertiary aminated and hydroxypropylsulfonated corn starch (TAHPSS) samples were prepared by the tertiary amination and hydroxypropylsulfonation of acid-hydrolyzed corn starch (AHS) with 2- dimethylaminoethyl chloride hydrochloride (DMC-HCl) and 3-chloro-2-hydroxy-1-propanesulfonic acid sodium salt (CHPS-Na) simultaneously. The adhesion was evaluated by measuring the bonding force of starch to the fibers. The film properties were investigated in terms of tensile strength, breaking elongation, degree of crystallinity, and moisture regain. The results showed that tertiary amination/hydroxypropylsulfonation was able to increase bonding forces of starch to cotton and polyester fibers, enhance breaking elongation and moisture regain of the starch film and to decrease the tensile strength and degree of crystallinity of the film, thereby improving the adhesion and reducing film brittleness. Increasing the level of tertiary amination/hydroxypropylsulfonation was favorable for gradually improving the adhesion and decreasing the brittleness. The TAHPSS showed potential for use in cotton warp sizing.
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