In this article, winter clothes, bedding, pillows, mattresses are produced in the Republic of Uzbekistan and used in the export products of foreign countries in domestic market shopping centers;existing nonwoven fabri...In this article, winter clothes, bedding, pillows, mattresses are produced in the Republic of Uzbekistan and used in the export products of foreign countries in domestic market shopping centers;existing nonwoven fabric samples were used as toys, children’s clothing as a heat retainer, a space-filler was selected on the basis of marketing survey analysis. Chemical bonding, processing technology, methods, linear density, thickness, air permeability, hygroscopicity, heat storage and heat transfer properties of the samples were analyzed experimentally based on the preparation methods, the fiber content was compared with the standard technology. The advantages and disadvantages of the samples were studied and recommendations for use in sewing according to consumer requirements were given.展开更多
Thermal protective clothing has been recognized as the primary shielding against emergency fire hazard and inflammable gas leakage. Therefore,the thermal response of human covered with thermal protective clothing unde...Thermal protective clothing has been recognized as the primary shielding against emergency fire hazard and inflammable gas leakage. Therefore,the thermal response of human covered with thermal protective clothing under high temperature is the key work to investigate the thermal insulation of thermal protective clothing. A coupling model composed of thermal protective clothing,air gap and human skin is established and the temperature of the micro-system is numerically solved via the finite element method( FEM).Especially,the heat transfer of air gap located between clothing and human skin considering conduction and radiation is established while the human skin layers involve the effect of blood perfusion. Then the effect of thermophysical properties( thermal conductivity and volumetric capacity) of fabric and thickness of fabric and air on the thermal response of the micro-system is elucidated and compared.The results indicate that the volumetric heat capacity of fabric is the key parameter to affect the thermal shielding performance of thermal protective clothing,and the thicker fabric thickness and air gap thickness can improve the thermal protective properties of the micro-system.展开更多
文摘In this article, winter clothes, bedding, pillows, mattresses are produced in the Republic of Uzbekistan and used in the export products of foreign countries in domestic market shopping centers;existing nonwoven fabric samples were used as toys, children’s clothing as a heat retainer, a space-filler was selected on the basis of marketing survey analysis. Chemical bonding, processing technology, methods, linear density, thickness, air permeability, hygroscopicity, heat storage and heat transfer properties of the samples were analyzed experimentally based on the preparation methods, the fiber content was compared with the standard technology. The advantages and disadvantages of the samples were studied and recommendations for use in sewing according to consumer requirements were given.
基金National Natural Science Foundations of China(Nos.51306095,51273097,51403112)China Postdoctoral Science Foundations(Nos.2014M561887,2015T80697)+1 种基金Qingdao Postdoctoral Application Research Funded Project,China(No.14-2-4-1-JCH)Qingdao Application Basic Research Funded Project,China(No.15-9-1-41-JCH)
文摘Thermal protective clothing has been recognized as the primary shielding against emergency fire hazard and inflammable gas leakage. Therefore,the thermal response of human covered with thermal protective clothing under high temperature is the key work to investigate the thermal insulation of thermal protective clothing. A coupling model composed of thermal protective clothing,air gap and human skin is established and the temperature of the micro-system is numerically solved via the finite element method( FEM).Especially,the heat transfer of air gap located between clothing and human skin considering conduction and radiation is established while the human skin layers involve the effect of blood perfusion. Then the effect of thermophysical properties( thermal conductivity and volumetric capacity) of fabric and thickness of fabric and air on the thermal response of the micro-system is elucidated and compared.The results indicate that the volumetric heat capacity of fabric is the key parameter to affect the thermal shielding performance of thermal protective clothing,and the thicker fabric thickness and air gap thickness can improve the thermal protective properties of the micro-system.
