Advanced Materials Research Vols. 287-290

Abstract: In this experiment, use of far infrared filled fabric of instillation of sweat on the man the purpose of detecting artificial sweat on the far-infrared radiation rate of fiber influence and change the fiber type, weight, the proportion of artificial sweat to detect far-infrared radiation rate of thick fabrics change. The results showed that the infrared fiber’s radiation rate of cotton fiber to be higher about 0.07. Far-infrared on a thick layer of fabric at the instillation of 3% weight, 6% of the weight, 9% of the weight of artificial sweat, its far-infrared radiation rate would be the relationship between the rapid decline due to sweat, but with the artificial sweat evaporation, radiation will slow the rate of rise, Another far-infrared fiber samples of 3g weights repeated titration sweat, the far-infrared fiber samples of the far-infrared radiation rate will be increased about 0.005 ~ 0.007

Abstract: In this study, to change the proportion of 20%、21% RFL solution content, and in which compounds were added 7%, 8% of the IL-6 conditions, in the different EP100, EP200, EP300 fabrics, testing adhesion strength the changes between of fabric and fabric, fabric and rubber, respectively, for different concentrations under the conditions, observed in viscosity variations of the RFL solution. The results indicate that, the viscosity of RFL solution will increase with the ratio improve and the concentration of IL-6 conditions, in 21% RFL solution content and adding 8% of the IL-6 can reach the best results, EP 100 fabric and fabric of the adhesion strength is 21.24kgf, the adhesion strength of fabric and rubber is 28.09 kgf.

Abstract: The purpose of this study is to make an electroluminescent fabric, through the dip-coating method, use different layer materials in turns to coating on the conductive fabric, so that the final shape of the fabric can through the electroluminescence principle to achieve the effect of light on the surface. According to the dip-coating procedure, the resin materials in this study are BT2100, phosphor adding with ITK5517, ITK5517, and the outer electrode layer. To confirm the effect of dip-coating method, in the beginning of the study, for each resin material layer and electrode layer (ITO / PET, poly-3,4-ethylenedioxythiophene (PEDOT: PSS), poly-aniline (PANI)) to discussed the coating uniformity and stiffness etc. on the fabric. After the practice to be established, than estimate the polymer of the surface, it is mainly to mixed in different proportions within PEDOT:PSS and PANI, to fill up the defects of conductive interface in the coating method with PEDOT:PSS, through the good surface adhesion of PANI, than make it become more suitable electrode on the electroluminescent fabric. In experimental results, we found that dip-coating can truly achieve the uniform distribution of each sol on the fabric, to obtain better uniformity on the surface, and then the mixture ratio of PEDOT: PSS and PANI in 2:1 and 3:1 , will have the best brightness(17.38lux, 19.86lux) and light uniformity(83.5%, 85.5%).

Abstract: In this study, the PET/Nylon woven fabrics first treated with infrared radiation and microwave, then dipped isocyanate solution. The surface of the fabric had treated by physical and chemical processing. Adhesion strength between fabric and fabric up rise to 37.4%, and treated by microwave up rise to while adhesion strength between fabric and rubber by up to 52.2%.

Abstract: By using electrospinning method, polyamide 6 (PA 6) nanofibers containing 1 wt% of AgNo₃ were spun from different concentrations solutions (15-25 wt%) for use as composite filter media. The silver ions in PA 6 nanofibers were reduced by ascorbic acid solution to silver particles offering antibacterial properties to the final filter after electrospinning. The results show, fibers with mean diameters less than 160 nm were prepared for use as filter media by electrospinning. The diameter of electrospun fiber was proportioned to the viscosity of PA 6 solution but was inversed to the applied electrical voltage. The viscosities of PA 6 solution were decreased by adding of AgNo₃ from which brought more irregular formation of electrospun fibers. The filtration efficiency of spunbond nonwoven would improve greatly by compositing the electrospun PA6 web with or without silver.

Abstract: During PET fabric dyed with disperse dye by adding ZnO powder and ceramic bead made from which was studied. To utilize the effect of transmission of FIR to produce heat, it might reduce consuming quantity of dyestuffs and minimize requiring heat of conventional dyeing in the considerable extent. To vary the adding amount of ZnO powder within ceramic bead, the after-treatment time of ceramic bead, dyeing temperature and the concentration of dyeing solution, then the outcomes of dyeing was investigated. The researching results showed, there were obvious effectiveness to some specific disperse dyes either added ZnO powder or ceramic bead in dyeing bath. Under the same dyeing temperature, the color-depth of dyed fabric is deeper with the dyeing liquor of adding ZnO powder and ceramic bead; otherwise, the effect of adding ZnO powder was superior to which of ceramic bead.

Abstract: Electrospinning of polyacrylonitrile was used to investigate the effect of horizontal vs. vertical fiber deposition methods and operating variables on the degree of nanofiber alignment. A high-speed camera and Fiji image analysis software were used to assess differences and changes in the degree of fiber parallelism, allowing for effective analysis of the impact of operating variables on fiber parallel alignment. The results show that the strength of the electric field affects the fibers to assume a parallel alignment. Too weak the electric field, the fibers are unable to form a straight bundle, but too strong a field results in chaotic fiber alignment. The distance between the collectors influences the angle distribution of the fiber parallel alignment greatly. Comparing the effect of horizontal and vertical electrospinning on fiber alignment shows that horizontal results in a more optimal degree of parallel fiber alignment.

Abstract: The structure, characteristics and principles of BP neural network model are described in this paper. First, three impact factors of the dissolved oxygen are selected as the sample input of network, and then the parameters of BP neural network are selected, such as network structure, learning algorithm, output layer transfer function, learning rate and so on. Finally, the BP neural network model is established and trained, in order to approach compensate the effects of improves non-linearity. The simulation results show that BP neural network is practical and dependable in the field of dissolved oxygen modeling and has nice applied prospect.

Abstract: The trapezoidal tearing method was utilized for the polyurethane coated fabrics with five different Silicone contents. The correlation of elastic modulus, shear modulus and tearing strength were studied and the results showed that the tearing strength increased following the decrease of elastic modulus. Finite element results were analyzed for the coated fabrics by using orthotropic model. The calculation results showed good agreement with the experimental results.

Abstract: The effect of acid modification using 1mol/L HCl on viscosity, thermal properties and mechanical properties of potato starch pastes and starch film were investigated. After acid modification, the surface of starch granules did not show more roughness and viscosity of starch pastes become lower. The results of DSC indicated that acid should act on amorphous region of starch firstly and would act on the crystallization region with the longer treatment time. In the very close viscosity scope, the mechanical properties of starch films were increased obviously after acid modification.