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RISS 인기검색어
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- 저자 : Xueyang Liu (검색결과 4 건)
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Xueyang Liu,Guang Yang,Vitali Lipik 한국섬유공학회 2019 Fibers and polymers Vol.20 No.1
In this work, reagents with different amounts of aromatic rings were reacted with hydroxyl groups of cotton, aiming for washing stability and water repellency of treated cotton fabric. Different conditions of chemical transformation were considered, including the influence of carbonyl and ester chemical bonds, the quantity of aromatic ring in the reagent, and the properties of obtained cotton fabric. High contact angles were reached with the maximum of 140 o obtained at the usage of chlorotriphenylsilane. Six reagents used for cotton treatment have shown excellent washing stability, and their contact angles expressed the high water repellency of the fabric even after 10 washing cycles. Although mechanical properties of treated fabric were dropped for some samples due to the reduction of hydrogen bonds amount, stiffness of fabric decreased by up to 40 % which means softer fabric. The cotton fabric treated with reagent containing two aromatic rings exhibited the best properties of washing stability and water repellency.
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The Application of Silica and Glass Fibers in Effective Thermoinsulation of Winter Apparels
Guang Yang,Xueyang Liu,Vitali Lipik 한국섬유공학회 2018 Fibers and polymers Vol.19 No.7
We studied the influence of silica and glass fibers on the properties of polyester non-woven padding, fixing interesting changes in thermoinsulation, thickness and stiffness of obtained composites. It was found that the combination of inorganic and polyester fibers allowed for obtaining improved thermoinsulating property, compared to non-woven materials based on individual fibers. The improvement is attributed to the enhanced reflectance and the decreased air permeability, which can reduce the heat lost through radiation and convection. The application of inorganic fibers also made the development of non-woven materials with small thickness, keeping thermoinsulating property similar or better, compared to the commonly used polyester non-woven padding. Furthermore, the designed non-woven composites in real models of winter jackets were evaluated in a climate chamber at -10 oC by infrared thermal camera. The results showed that the addition of inorganic fibers allowed the surface temperature of winter jackets more than 5 oC lower than that of winter jacket with pure polyester padding. They significantly enhanced the protection from cold and reduced heat loss from the human body.
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Zhonglin Chen,Qian Zhou,Feng Leng,Bing Dai,Xueyang Zhao,Weichen Zhang,Neng Liu,Wei Guan,Kui Liu 대한환경공학회 2017 Environmental Engineering Research Vol.22 No.3
The joint effect of different concentrations (0.05-0.375 mmol/L) of Cd<SUP>2+</SUP> and various concentrations (50-400 mg/L) of [C3mim][OAc] on the growth and physiology of wheat seedlings were investigated. The toxicity of Cd<SUP>2+</SUP> could be significantly reduced by lower concentrations (50-200 mg/L) of [C3mim][OAc]. With higher concentration (≥ 300 mg/L) of [C3mim][OAc], the reduction became less, and compared to Cd<SUP>2+</SUP> stress only, the toxicity of 400 mg/L [C3mim][OAc] increased. As for different Cd<SUP>2+</SUP> concentrations, the optimal reduction depends on the balance between the exact concentration of Cd<SUP>2+</SUP> and [C3mim][OAc]: With low Cd<SUP>2+</SUP> concentration (0.05-0.250 mmol/L) requiring 50 mg/L [C3mim][OAc], it could reach a dynamic equilibrium, while high Cd<SUP>2+</SUP> concentration (0.375 mmol/L) requiring 100 mg/L [C3mim][OAc]. The growth and physiological indexes of wheat seedlings show a decrease in toxicity compared to the Cd alone treatment, when the dynamic equilibrium is reached. The concentration of Cd<SUP>2+</SUP> in leaf tissues showed that low concentration (50-200 mg/L) of [C3mim][OAc] can reduce the toxicity of Cd<SUP>2+</SUP> (0.05-0.375 mmol/L) by decreasing the level of Cd<SUP>2+</SUP> concentration in the tissues, whereas the higher concentration (≥ 300 mg/L) of [C3mim][OAc] can increase the concentration of Cd<SUP>2+</SUP>.
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Xue Yang,Ziyang Wang,Yongsheng Zhang,Wei Liu 한국섬유공학회 2020 Fibers and polymers Vol.21 No.11
For improving the ultraviolet (UV) protection property of cotton fabric and exploiting ecological cotton textiles,cotton fabric was modified with a kind of biocompatible and nontoxic of chitosan (CS)/nanocellulose (NCs) nanocompositesusing a pad-dry-cure process. The effect of particle size of NCs on the morphology and property of CS/NCs cotton fabrics werecarefully investigated by SEM, FTIR, and mechanical property, water wettability, UV protection and laundering durabilityanalysis. The results revealed that the CS/NCs coated fabrics performed excellent UV protection ability as well as a goodlaundering durability. The UPF values of all the CS/NCs coated fabrics were much higher than that of untreated fabric evenafter 30 cycles of laundering. Moreover, the particle size of NCs had a negative effect on the UV protection ability of CS/NCscoated fabric. Meanwhile, coated with CS/NCs nanocomposites was benefit to enhance the mechanical property, andhydrophobicity of cotton fabric.
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