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机构地区:[1]西安工程大学纺织与材料学院,陕西西安710048 [2]国防科工委光学计量一级站,陕西西安710065 [3]总后军需装备研究所,北京100088
出 处:《东华大学学报(自然科学版)》2007年第4期500-506,共7页Journal of Donghua University(Natural Science)
基 金:陕西省自然科学基金(2003E102);陕西省科技厅资助项目(2004K08-G17);西安市科学技术局资助项目(GG04055);陕西省教育厅资助项目(06JK299)
摘 要:采用红外光谱辐射计和样品炉,测试了8~14μm波段涤、棉两种织物的红外线透过率,以及不同纺织材料和涂层织物的发射率.结果表明,透过率分别随着织物紧度和厚度的增加而减小,在厚度相差不大时,透过率与面密度呈负线性关系;对于非常紧密的织物,红外线透过率也不为零;纱线毛羽对红外线透过率影响较大.不同织物发射率大小的顺序:锦纶织物>涤纶织物>毛织物>棉织物>化学镀金属织物;混纺织物的发射率由组成该织物纤维材料的发射率决定;涂层织物的发射率主要受涂层剂的影响;对于相同材料的织物,颜色对发射率影响很小.Combined with a special made blackbody, a Fourier transform infrared (FT- IR) spectral radiometer has developed to measure the transmittivities of polyester and cotton fabrics within the range of 8- 14μm under near ambient temperature conditions. Based on the transmittivity, the surface emissivities of various fabrics made from different materials can be obtained. The results show that the transmittivity decreased with the increasing of cover tightness and fabric thickness respectively. There are linear relations between transmittivity and fabric's area density. Transmittivity was not equal to zero even for compact fabrics. The hairiness has a great effect on the transmittivity of cotton fabric. The fabrics in surface emissivity sequence are polyamide, polyester, wool, cotton and chemical plating fabric. The surface emissivity of blended fabric is determined by the characteristics of each kind of materials it constitutes. For coated fabric, surface emissivity is greatly influenced by the binder contained on the fabric surface. The colors have no effect on surface emissivity for the same kind of fabric.
分 类 号:TS101.723.9[轻工技术与工程—纺织工程]
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