基于双光源的织物红外发射率与光热吸收率的测量

doi:10.13475/j.fzxb.20220104801

摘要/Abstract

摘要：

为探究织物的光热吸收和红外发射性能,依据新的测量原理,采用不同色温的双光源对织物的光热吸收率和红外发射率进行综合测量研究。试验装置采用高反射率KT板并单向绝热,消除了织物透射的影响并解决了织物真实温度的测量问题。对20块不同成分、颜色、组织结构的织物试样以及黑漆铜板的表面真实温度和辐射温度分别进行了测量,并测定了参考黑体和织物表面的对流散热系数,由此计算出织物的全波段平均红外发射率和平均光热吸收率。结果表明,在2种可见光占比不同的热光源下,织物的红外发射率分别在0.65~0.85和0.60~0.95之间,存在一定的差异,主要与织物的材质和颜色有关;而织物的光热吸收率分别在35%~60%和 30%~90% 之间,显示出与光源色温较强的依存性,其主要是因为织物颜色对可见光波段有较强的反应;由于碘钨灯光谱与红外测温感应光谱存在一定的重合,织物的反射有一定的干扰,使用作为国标光源的氙灯没有光谱重叠的干扰,其测量结果更准确。

关键词: 光热辐射, 光热吸收率, 红外发射率, 织物, 热学特性, 热光灯

Abstract:

Objective The infrared emissivity and photothermal absorption rate of fabrics are two important indexes related to the thermal comfort and protection performance of clothing. To study these two characteristics of fabrics, this research aims to explore the infrared emissivity and photothermal absorption rate of fabrics under different photothermal radiation sources through the test device designed according to the new measurement principle, which provides a theoretical basis for the selection of photothermal radiation sources.
Method High reflectance KT board was used in the test device and unidirectional insulation was realized, which eliminated the influence of fabric transmission and solved the real temperature measurement of fabric. During the experiment, the surface real temperature and radiant temperature of 20 fabric samples with different composition, color and structure as well as black copper plate were measured by iodine tungsten lamp and xenon lamp with two color temperatures. The convective heat dissipation coefficients of the reference black body and fabric surface were determined, and the average infrared emissivity and average photothermal absorption rate of fabrics were calculated.
Results Under the radiation of iodine tungsten lamp and xenon lamp, the infrared emissivity of fabrics were found to be in ranges of 0.65-0.85 and 0.60-0.95 respectively, and the photothermal absorptivity of fabrics were in 35%-60% and 30%-90% respectively. The infrared emissivity of the same sample under these two radiation conditions had a certain difference, but both standard deviations were 0.06, with CV values of 7.40% and 12.55%, respectively. It might be that the groups in the fabric dyes could respond to the infrared band, so that the results under different light sources were different. On the other hand, the spectrum of the iodine tungsten lamp coincided with the infrared emission spectrum of fabrics at 8-14 μm by 5%, resulting in a certain interference effect fabric reflection on the measurement of radiation temperature in the iodine tungsten lamp spectrum. The xenon lamp spectrum had no overlap with the measuring window of 8-14 μm, and fabrics had no effect on its reflection. As the proportion of visible light in xenon lamp was greatly improved compared with that in iodized tungsten lamp, the data gap between white fabric and black fabric expanded from 15% to about 60%, which fully reflected the absorption and reflection of sunlight by the color of fabrics. In addition, the test results under both light sources showed that the thickness and gram weight of the fabric had no significant correlation with infrared emissivity (P>0.05), while the fabric type had significant correlation with infrared emissivity (P>0.05). The order of infrared emissivity from high to low was wool, cotton, polyester. The gram weight and type of fabric were not significantly correlated with the photothermal absorption rate (P>0.05), while fabric thickness was low correlation with the photothermal absorption rate (P<0.05, |r|=0.50).
Conclusion The infrared emissivity of fabrics has a certain dependence while the photothermal absorption rate of fabrics has a strong dependence on the color temperature of the light source, which is mainly because the color of the fabric has a strong reflection of the visible wavelength. Because the spectrum of the iodine tungsten lamp overlapped with the measuring band of the infrared temperature sensor, the reflection of the fabric interferes to some extent, and there will be errors in the measurement results. However, xenon lamp has no interference of spectral overlap, so its measurement results are more accurate and it is more suitable as the photothermal radiation source for the test.

Key words: photothermal radiation, photothermal absorption rate, infrared emissivity, fabric, thermal characteristic, thermal lamp

中图分类号:

TS941.16

张悦, 陈益松, 卞玉瑶, 刘艺. 基于双光源的织物红外发射率与光热吸收率的测量[J]. 纺织学报, 2023, 44(06): 114-120.

ZHANG Yue, CHEN Yisong, BIAN Yuyao, LIU Yi. Measurement of infrared emissivity and photothermal absorption rate of fabrics with dual photothermal radiation sources[J]. Journal of Textile Research, 2023, 44(06): 114-120.

图/表 6

图1

图2

表1

表2

图3

图4

参考文献 26

[1]	方进, 刘秀, 黄琦婧, 等. 纺织面料红外发射率对其辐射散热性能的影响[J]. 印染, 2018, 43(2): 39-42.
	FANG Jin, LIU Xiu, HUANG Qijing, et al. Influence of infrared emissivity on thermal radiation performance of fabrics[J]. China Dyeing & Finishing, 2018, 43(2): 39-42.
[2]	何岷洪. 红外隐身材料的制备及红外发射率性能研究[D]. 太原: 中北大学, 2013: 2-10.
	HE Minhong. Preparation and infrared emissivity property of infrared camouflage materials[D]. Taiyuan: North Univeisity of China, 2013: 2-10.
[3]	程宁波, 缪东洋, 王先锋, 等. 用于个人热湿舒适管理的功能纺织品研究进展[J]. 纺织学报, 2022, 43(10): 200-208.
	CHENG Ningbo, MIAO Dongyang, WANG Xianfeng, et al. Review in functional textiles for personal thermal and moisture comfort management[J]. Journal of Textile Research, 2022, 43(10): 200-208.
[4]	章潇慧, 于浩然. 光热转换材料的研究现状与发展趋势[J]. 新材料产业, 2019, 304(3): 56-67.
	ZHANG Xiaohui, YU Haoran. Research status and development trend of photothermal conversion mate-rials[J]. Advanced Materials Industry, 2019, 304(3): 56-67.
[5]	韩重阳. 新型光热转换膜在海水淡化中的应用研究[D]. 上海: 东华大学, 2020: 5-10.
	HAN Chongyang. Research on the application of a new type of photothermal conversion film in seawater desalination[D]. Shanghai: Donghua University, 2020: 5-10.
[6]	MIAO D G, JIANG S X, LIU J, et al. Fabrication of copper and titanium coated textiles for sunlight management[J]. Journal of Materials Science: Materials in Electronics, 2017, 28(13): 9852-9858. doi: 10.1007/s10854-017-6739-3
[7]	关威, 刘建梅, 王琦, 等. 基于红外辐射计的物体光谱发射率测量方法[J]. 火力与指挥控制, 2016, 41(11): 163-166, 170.
	GUAN Wei, LIU Jianmei, WANG Qi, et al. Measurement of spectral emissivity of object based on infrared radiometer[J]. Fire Control & Command Control, 2016, 41(11): 163-166, 170.
[8]	ZHANG H, HU T L, ZHANG J C H. Surface emissivity of fabric in the 8-14 μm waveband[J]. Journal of The Textile Institute, 2009, 100(1): 90-94. doi: 10.1080/00405000701692486
[9]	陈益松, 王砚. 纺织面料红外发射率测量的新装置及方法[J]. 东华大学学报(自然科学版), 2019, 45(3): 386-390.
	CHEN Yisong, WANG Yan. New device and method for Infrared emissivity measurement of textile fabrics[J]. Journal of Donghua University(Natural Science), 2019, 45(3): 386-390.
[10]	陈宇超, 沙畅畅, 王心妤, 等. 基于光热转换的吸收材料与转换机理研究进展[J]. 能源研究与利用, 2019, 188(4): 23-31, 55.
	CHEN Yuchao, SHA Changchang, WANG Xinyu, et al. Research progress on absorption materials and conversion mechanism based on photothermal conver-sion[J]. Energy Research & Utilization, 2019, 188(4): 23-31, 35.
[11]	NIE X L, WU S L, HUANG F L, et al. Smart textiles with self-disinfection and photothermochromic effects[J]. ACS Applied Materials & Interfaces, 2021, 13(2): 2245-2255.
[12]	KUMAR P, ROY S, SARKAR A, et al. Reusable MoS₂-modified antibacterial fabrics with photothermal disinfection properties for repurposing of personal protective masks[J]. ACS Applied Materials & Interfaces, 2021, 13(11): 12912-12927.
[13]	NGA D, PHAN A D, LAM V D, et al. Enhanced solar photothermal effect of PANI fabrics with plasmonic nanostructures[J]. RSC Advances, 2020, 10(47): 28447-28453. doi: 10.1039/d0ra04558f pmid: 35519101
[14]	王彩云, 卫敏, 吴霞, 等. 光热转换面料的吸光升温性能研究[J]. 中国纤检, 2020(9): 59-62.
	WANG Caiyun, WEI Min, WU Xia, et al. Study on light absorption and heating performance of light-heat conversion fabric[J]. China Fiber Inspection, 2020(9): 59-62.
[15]	JYOTHI J, AUDREY SOUM-GLAUDE, NAGARAJAET H S, et al. Measurement of high temperature emissivity and photothermal conversion efficiency of TiAlC/TiAlCN/TiAlSiCN/TiAlSiCO/TiAlSiO spectrally selective coating[J]. Solar Energy Materials and Solar Cells, 2017, 171: 123-130. doi: 10.1016/j.solmat.2017.06.057
[16]	陈益松, 张悦. 综合测量纺织面料的红外发射率及光热吸收率[J]. 东华大学学报(自然科学版), 2022, 48(4): 43-48.
	CHEN Yisong, ZHANG Yue. The comprehensive measurement of infrared emissivity rate and photothermal absorption rate of textile fabrics[J]. Journal of Donghua University (Natural Science), 2022, 48(4): 43-48.
[17]	李申生. 太阳常数与太阳辐射的光谱分布[J]. 太阳能, 2003(4): 5-6.
	LI Shensheng. Solar constant and spectral distribution of solar radiation[J]. Solar Energy, 2003(4): 5-6.
[18]	赵立华, 唐其环. 太阳辐射试验标准中的太阳光谱分布[J]. 装备环境工程, 2017, 14(11): 65-70.
	ZHAO Lihua, TANG Qihuan. Solar spectral distribution in solar radiation test standard[J]. Equipment Environmental Engineering, 2017, 14(11): 65-70.
[19]	周静, 林兰天. 芳砜纶耐日晒性能研究[J]. 产业用纺织品, 2010, 28(2): 17-19, 23.
	ZHOU Jing, LIN Lantian. Study on light stability property of polysulfonamide fiber[J]. Technical Textiles, 2010, 28(2): 17-19, 23.
[20]	刘梦, 艾青, 王帅, 等. 基于辐射加热源的材料高温发射率测量方法[J]. 工程热物理学报, 2021, 42(3): 740-744.
	LIU Meng, AI Qing, WANG Shuai, et al. Study on the high-temperature emittance measurement method based on radiative[J]. Journal of Engineering Thermophysics, 2021, 42(3): 740-744.
[21]	徐共荣, 俞萧, 周岚, 等. 低发射率涂料的研制及其在涤/棉混纺织物热红外伪装中的应用[J]. 丝绸, 2014, 51(2): 1-5.
	XU Gongrong, YU Xiao, ZHOU Lan, et al. Preparation of low-emissivity coating and its application in thermal infrared camouflage of polyester/cotton blended fabrics[J]. Journal of Silk, 2014, 51(2): 1-5.
[22]	杨宇笛, 徐壁, 蔡再生. 基于染色斜纹棉布的太阳能驱动界面水蒸发体系的研究[J]. 产业用纺织品, 2020, 38(3): 29-35.
	YANG Yudi, XU Bi, CAI Zaisheng. Study on solar driven interfacial water evaporation system based on dyed twill cotton fabric[J]. Technical Textiles, 2020, 38(3): 29-35.
[23]	张辉, 胡铁力, 张建春. 8-14 μm红外线对织物作用的测量[J]. 东华大学学报(自然科学版), 2007, 33(4): 500-506.
	ZHANG Hui, HU Tieli, ZHANG Jianchun. Measurement of fabric characteristics in 8-14 μm[J]. Journal of Donghua University(Natural Science), 2007, 33(4): 500-506.
[24]	杨世铭, 陶文铨. 传热学[M]. 4版. 北京: 高等教育出版社, 2006: 369.
	YANG Shiming, TAO Wenquan. Heat transfer[M]. 4th ed. Beijing: Higher Education Press, 2006: 369.
[25]	BERGMAN T L, LAVINE A S, INCROPERA F P, et al. Fundamentals of heat and mass transfer[M]. 7th ed. Hoboken: John Wiley & Sons, 2011: 604-605, 995.
[26]	CHURCHILL S W, CHU H H S. Correlating equations for laminar and turbulent free convection from a horizontal cylinder[J]. International Journal of Heat and Mass Transfer, 1975, 18(9): 1049-1053. doi: 10.1016/0017-9310(75)90222-7

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

温度函数	a₃	a₂	a₁	a₀
ν(T)	-6.00×10^-14	1.65×10^-10	1.22×10^-8	-9.60×10^-7
K(T)	-1.56×10^-13	3.20×10^-10	-9.02×10^-9	5.38×10^-7

编号	织物名称	颜色	组织结构	厚度/ mm	面密度/ (g·m^-2)
A₁	薄棉布	白	平纹	0.338	137.28
A₂		黄	平纹	0.338	137.28
A₃		黑	平纹	0.338	137.28
B₁	厚棉布	白	斜纹	0.788	256.80
B₂		黄	斜纹	0.788	256.80
B₃		黑	斜纹	0.788	256.80
C₁	中厚棉布	红	斜纹	0.744	264.24
C₂		蓝	斜纹	0.728	268.26
C₃		黑	斜纹	0.766	269.94
D	格格棉布	土黄	斜纹	0.456	182.88
E₁	薄羊毛织物	灰白	平纹	0.812	250.36
E₂		姜黄	平纹	0.844	307.32
E₃		红	平纹	0.534	194.76
F₁	厚羊毛织物 (正面)	浅褐	斜纹	2.368	304.90
F₂	厚羊毛织物 (反面)	深褐	斜纹	2.368	304.90
G₁	涤纶织物	白	斜纹	0.422	206.06
G₂		黄	斜纹	0.456	240.44
G₃		黑	斜纹	0.420	228.16
H₁	褶皱涤纶织物 (正面)	黑	平纹	1.170	135.84
H₂	褶皱涤纶织物 (反面)	灰	平纹	1.170	135.84