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RISS 인기검색어
- 검색키워드
- 저자 : Xiating Ke (검색결과 3 건)
- 무료
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Preparation of Copper Nanoparticles Coated Cotton Fabrics with Durable Antibacterial Properties
Qingbo Xu,Xiating Ke,Naiqin Ge,Liwen Shen,Yanyan Zhang,Feiya Fu,Xiangdong Liu 한국섬유공학회 2018 Fibers and polymers Vol.19 No.5
When copper nanoparticles (Cu NPs) were applied as an antimicrobial agent to finish cotton fabrics, there are two issues should be solved: the oxidization and the weak adsorbability onto cotton fiber surface. In the present work, we developed a new method that can achieve both immobilization and protection of the Cu NPs at the same time. As an effective binder, thioglycolic acid (TGA) was covalently linked to cotton fiber surface via an esterification with the hydroxyl groups of cellulose, then Cu NPs were introduced on the fabric surface in the presence of a protective reagent, citric acid. Due to the doubled stabilization acts of TGA and citric acid, the Cu NPs immobilized on the fabric surface showed an excellent antibacterial effect and outstanding laundering durability. Even after 50 consecutive laundering tests, the modified cotton fabrics still showed satisfactory antibacterial ability against both S. aureus and E. coli, which the bacterial reduction rates are all higher than 96 %. It is believed that this methodology has potential applications in a wide variety of textile productions such as sportswear, socks, and medical textiles.
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Qingbo Xu,Xiating Ke,Yanyan Zhang,Feiya Fu,Xiangdong Liu 한국섬유공학회 2018 Fibers and polymers Vol.19 No.11
In this study, durable antibacterial cotton fabrics were prepared by a simple two-step impregnation method. Firstly, thioglycolic acid (TGA) was grafted onto cotton fabric via esterification with the hydroxyl groups of cellulose, then silver nanoparticles (Ag NPs) were immobilized on the cotton fabric surface via coordination bonds with the TGA thiol groups. As a result, the mean size of Ag NPs coating on the cotton fabric is around 74 nm, and these functionalized cotton fabrics show superior antibacterial properties and excellent laundering durability. After withstand 50 laundering cycles, the obtained cotton fabrics still showed outstanding bacterial reduction rates (BR) against both S. aureus and E. coli, and the rates are all higher than 97 %. Therefore, this method to prepare antibacterial cotton fabric shows great potential applications in socks, cosmetic, and medical textiles.
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Preparation of Durable Superhydrophobic Cotton Fabric for Selfcleaning and Oil-water Separation
Qingbo Xu,Xiating Ke,Yanyan Zhang,Peng Wang 한국섬유공학회 2022 Fibers and polymers Vol.23 No.6
Improving the surface roughness and reducing the surface energy are the main strategies for constructing cottonfabrics with superhydrophobic surface. However, the complex finishing process and poor durability still impede theproduction and application of superhydrophobic cotton fabrics. Therefore, it is critical to produce superhydrophobic fabricswith excellent durability via a noncomplicated method. In this work, monomers of methyl methacrylate (MMA) andtrifluoroethyl methacrylate (TFMA) were polymerized via free radical polymerization to produce a fluoropolymer. Then, thefabric was coated with the fluoropolymer to construct a superhydrophobic surface via the pad-dry-cure technology. TheTFMA unit in the fluoropolymer had lower surface energy than the MMA unit. Under the high-temperature curing condition,the MMA unit in the fluoropolymer was grafted onto the cotton fabric via transesterification, and the TFMA was exposed onthe fabric surface. The finished fabric showed durable superhydrophobic properties, outstanding oil-water separationproperties, and excellent self-cleaning properties. Given the results, the finished fabric has great potential application inclothing and industrial fields.
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