Advanced Materials Research Vols. 821-822

Abstract: Immerse cotton fabric into the TiO2 sol directly, which is produced by Titanate hydrolysis. Make cotton fabric and nano-TiO2 bind directly, so that the treated cotton fabric obtain a better decomposition of organic stains function. Combination fastness of fabric and TiO2 , self-cleaning function , regain , breaking strength , permeability , wrinkle recovery angle were tested.The results showed that: the fabric coated with nano-TiO2 has a self-cleaning function, good fastness, wrinkle recovery angle increases, moisture regain, tensile strength and permeability decrease slightly.

Abstract: In the context of sustainable development, the green and sustainable development of textile industry has been widespread concerned, the development of green textile is inevitable. In order to realize the green textile, this study started from the sustainable development of the textile industry, and explored the methods to implement green textile, then the green cycling development system of textile industry was put forward.

Abstract: As a new and efficient light source, LED has the advantages of long service life, low power consumption, small volume, light weight, rich color and fast response. Therefore, LED seems apparently quite suitable for functional apparel design, and becomes an important item of development, exhibition and promotion for research institutions and the clothing industry. In the recent years, the development trend of textile application of LED is changed from simple light bulb and light bar to the emergence of new material, including soft packaging, optical fiber, LED yarn, and organic light emitting diode. This paper describes components and systems of LED, textile application material and using method, concept illustration and design idea of some selected application cases. The purpose of this paper is to spread the knowledge of function, esthetics and practical value which displayed by the LED application in clothing, and improve both customer acceptance and market potential of luminous dresses in the clothing market.

Abstract: As a kind of handicraft of Uygur, Xinjiang Hetian carpet takes up a pivotal position in Uygurs life, because Hetian was the birthplace of the Uygur carpet and the production of carpet in Xinjiang has always been centered on this place. Elaborately made by folk artists with traditional hand craft, Uyghur carpet is sophisticated in materials, delicate in textile technology, which is one of the major reasons why it is favored by customers from both home and abroad. With distinctive national features and strong local colors, Uyghur carpet is called as a distinctive oriental carpet. [ The raw materials and weaving processes, etc. of Xinjiang Uyghur folk hand-woven carpet is described in this paper.

Abstract: The nonionic reverse micelles used for degumming of mulberry silk were prepared with a non-ionic surfactant Triton X-100 (TX-100) by injecting small amount of papain aqueous solution. The weight loss of mulberry silk degummed at different concentration of papain in TX-100 reverse micelles was investigated. The effect of the amount of solubilized water was also discussed. The polarizing optic microscope was employed to observe the surface morphology of the mulberry silk. The results indicated that the weight loss of the mulberry silk was increased with increasing concentration of papain, but the W values exhibited the reverse trend. The good degumming of mulberry silk with papain was obtained in TX-100 reverse micelles. The strength of mulberry silk decreased with increasing concentration of papain.

Abstract: A novel photocatalyst, BiVO₄-loaded fly ash cenospheres (BFACs), was prepared by the modified metalorganic decomposition (MOD) method. Its physicochemical properties were characterized by X-ray diffractometry (XRD), Raman spectroscopy, scanning electron microscopy with energy dispersive X-ray microanalyses (SEM-EDX) and UV-vis diffused reflectance spectroscopy (DRS). The photocatalytic activities of the as-prepared sample were evaluated by the photodegradation methyl orange (MO) dye and phenol in aqueous solution under visible-light irradiation. It was found that the photocatalytic activity of BFACs composite for the degradation of MO and phenol were higher than that of pure BiVO₄. Moreover, much enhanced photocatalytic performance for phenol degradation was also realized with the assistance of H₂O₂. The BFACs photocatalysts were stable and maintained high photocatalytic efficiency of MO during repeated recycles. The BFACs photocatalyst is promising for practical applications in purification of dye-containing wastewater.

Abstract: The introduction of blue light curing to dyeing and finishing will be save energy and reduce emission. Searching out blue light cured polymers of high strength and good flexibility is immediately needed. Hyperbranched polyurethane acrylate (HBPUA) exhibits relatively low viscosity and good mechanical property. Typical acrylate monomers of low smell were copolymerized with HBPUA, subsequently, the tensile mechanical property and flexibility of blue light cured polymers were evaluated in contrast of commercial adhesives. The concentration of monomer was further optimized and the dynamic mechanical property of selected film was presented. The results show that 80/20 HBPUA/TPGDA copolymer is thought of the most suitable system for textiles in this study. The related character of 80/20 HBPUA/TPGDA blue light cured system is listed below: 52.3% reaction conversion, 7.2MPa tensile stress, 9.2% fracture elongation, 61.8°C glass transition temperature.

Abstract: The decolorization of Orange II in goethite/UV system was investigated. It was discovered that the optimum condition is: pH=3, [α-FeOOH]=0.5 g/L, [Orange II]=10 mg/L. Furthermore, the absorption of Orange II on goethite, and the effect of pH values, goethite dosage and carboxylate on the decolorization were investigated. The decolorization efficiency was 90% after 6h irradiation when the concentration of pyruvic acid was 1.0mmol/L, α-FeOOH concentration was 0.3 g/L, and Orange II concentration was 10 mg/L at pH 3.0. Besides, total organic carbon (TOC) and chemical oxygen demand (COD) were determined, and a possible reaction mechanism was prompted as well.

Abstract: In this study, Orange II, a typical and stable azo dye, was chosen as the target pollutant. The works on the decolorization of Orange II become more practical, due to its high chroma, potential carcinogenic effects and the difficulty of degradation. Orange II (10 mg·L^-1) was efficiently decolorized at initial pH about 6 with an efficiency of 84% by Fe(II)-sulfite complexes after 60 min. As the initial concentration of sulfite ranged from 0.6 mmol·L^-1 to 1.5 mmol·L^-1 and the initial concentration of ferrous ranged from 0.1 mmol·L^-1 to 0.5 mmol·L^-1, the decolorization rate of Orange II increased gradually. Without UV-Vis irradiation, the initial decolorization rates of Orange II by Fe(II)-sulfite complexes increased as the initial concentration of Orange II increased from 2 mg·L^-1 to 20 mg·L^-1, thus following pseudo-first-order reaction kinetics. Consequently, Orange II could be effectively decolorized at near-neutral pH (5-7) by Fe(II)-sulfite system, thus having more advantages for water treatment. But further study is needed for reaction mechanism and improving mineralization rate of organic pollutants and pratical applicability.

Abstract: Systematic analysis of quantitative structure – property relationships for dyes of different nature has been reviewed. On the basis of the experimental results published in the literature and theoretical evaluation of amphiphilic and electrophilic properties of dyes of different nature several basic conclusions of scientific and practical importance are proposed. It was found that water/octanol partition coefficients exhibit correlation with dye partition between hydrophobic synthetic fibres and dyebath as well as dye affinity. Hydrophobicity of dyes controls several technical properties of dyes and dyeings, such as wash fastness and light fastness, migration factor, rate of dyeing and fixation rate. Energy of frontier electronic orbitals (HOMO and LUMO energies) correlates with different properties characterizing redox properties of dyes: oxidative and reductive destruction in chemical reactions, photochemical and biochemical destruction of dyes, wash and light fastness of dyeings. The results of this study are useful for physico-chemical analysis of dye sorption by textile fibres, destruction of dyes in polymers and solutions as well as for design of new dyes of high quality.