充气保暖复合面料厚度与热阻的相关性分析

doi:10.13475/j.fzxb.20220907101

摘要/Abstract

摘要：

充气保暖功能服装是以空气代替羽绒等填充材料的一类保暖服装。为更好地掌握充气量、充气复合面料厚度与热阻的关系,在5种充气状态(0%、30%、50%、70%、100%)下,测试了12种不同充气复合面料的厚度与热阻的变化。通过对测试数据的整理与分析,建立了三者之间的关系模型。实验结果表明:充气量、充气复合面料厚度与热阻三者之间存在较强的正相关关系;充气量越多,充气复合面料厚度越大,当充气量较少时,充气复合面料之间的厚度差异性较小,充气量越多时其差异性越显著;充气复合面料热阻随充气量的增加呈现先显著升高后趋于平稳的趋势,当充气量达到50%左右时热阻逐步趋于稳定;充气复合面料厚度越大,充气复合面料热阻越大,且当其厚度在20 mm左右时热阻趋于平稳,可作为保暖厚度的参考依据。实验证实充气复合面料在一定程度上具有调温保暖功能,参照所建模型通过调整充气量可以达到不同的保暖效果。

关键词: 保暖功能服装, 充气复合面料, 充气量, 厚度, 热阻

Abstract:

Objective Inflatable clothing is a type of warm keeping clothing that replaces down with air because the thermal conductivity of stationary air is the smallest, and inflatable clothing is constantly developed and designed using this principle. However, there is currently less research on inflatable fabrics, and it is necessary to explore the relationship between the thickness of the air gap inside the fabric and the thermal resistance. Therefore, the purpose of this study is to grasp the relationship among inflation volume, the thickness of air layer and the thermal resistance, and to establish relevant models to provide theoretical reference and application value for enterprises and researchers.

Method This research selected 12 different types of commercial inflatable fabrics, and evaluated the thermal resistance of these inflation fabrics with 5 different inflation volumes of 0%, 30%, 50%, 70% and 100%. Statistics analysis of experimental results was performed through single-factor analysis, correlation analysis, fitting regression analysis and other methods to understand the relationship among the three.

Results The experimental results show that the greater the inflation volumes, the greater the thickness of the air gap, and the more linear distribution of the two. The regression equation was obtained (Fig. 5). When the inflation volume was small, the difference in the air gap thickness between the fabrics was small, and the greater the inflation volume led to the more significant difference in the air gap thickness, and this was true for different fabrics (Fig. 3). The thermal resistance of the aerated fabric increased with the increase of the inflation volume (Fig. 4), and the thermal resistance was affected by the performance of the fabric itself. There were significant differences in different inflation states. As an example to illustrate, fabric 10^# was thicker and the thermal resistance was larger. Overall, the thermal resistance of the aerated fabric rose and then stabilized with the increase of the inflation volumes, and a Logistic model was established between the two. When the inflation volume was within 50%, the thermal resistance changes were more significant, the thermal insulation effect was significant, and with the continuous increase of the inflation volume, the thermal resistance value gradually stabilized (Fig. 6). Logistic model was established between the air gap thickness and the thermal resistance, and the inflation thermal resistance increased with the increase of the inflation volumes, showing a trend of first significantly increasing and then becoming stable (Fig. 7). When the air gap thickness was about 20 mm, the thermal insulation performance reached the best.

Conclusion By thickness and thermal resistance tests, this paper explores the relationship between different inflation volumes, air gap thicknesses and thermal resistance, establishes a relationship model, and draws the following conclusions. The greater the inflation volume, the greater the air gap thickness, and the more linear distribution of the two. The relationship between thermal resistance, inflation volume and air gap thickness demonstrates a trend of first increasing significantly and then tending to stabilize, and an optimal Logistic model is established. The thermal resistance changes greatly when the inflation volume is less than 50%, and the thermal resistance gradually stabilizes when the inflation volume is greater than 50%. When the air gap thickness is around 20 mm, the inflatable fabric has the best thermal performance. This paper also confirms by experiments that the inflatable clothing fabric has temperature regulation and warm keeping performance, and there is a certain regularity of the air gap thickness and thermal resistance. The research findings provide data reference for researchers of related materials, and the overall warm keeping of inflatable clothing is affected by a variety of factors, and there is still a lot of research space that can also be used as the direction of future research.

Key words: warm keeping dothing, inflation composite fabric, inflation volume, thickness, thermal resistance

中图分类号:

TS941.7

苗雪, 王永进, 王方明. 充气保暖复合面料厚度与热阻的相关性分析[J]. 纺织学报, 2023, 44(11): 176-182.

MIAO Xue, WANG Yongjin, WANG Fangming. Correlation analysis on thermal resistance of inflatable thermal composite fabrics and air gap thickness[J]. Journal of Textile Research, 2023, 44(11): 176-182.

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复合面料编号	面布	底布	压胶花型	面料成分	面密度/(g·m^-2)
1#	450 tex平纹高弹春亚纺	同面布	3 cm横条	纯涤纶	186
2#	270 tex平纹弹性春亚纺	同面布	3 cm横条	纯涤纶	166
3#	270 tex斜纹高弹春亚纺	450 tex飘纱面料	3 cm横条	纯涤纶	164
4#	斜纹高弹雪梨纺	同面布	3 cm横条	纯涤纶	213
5#	平纹雪梨纺	同面布	3 cm横条	纯涤纶	246
6#	平纹四面弹面料	同面布	3 cm横条	92%锦纶+8%氨纶	263
7#	270 tex平纹弹性春亚纺	同面布	八字花型	纯涤纶	164
8#	300 tex平纹春亚纺	同面布	八字花型	纯涤纶	223
9#	270 tex斜纹高弹春亚纺	450 tex飘纱面料	八字花型	纯涤纶	154
10#	270 tex斜纹高弹春亚纺	摇粒绒	八字花型	纯涤纶	240
11#	270 tex平纹弹性春亚纺	同面布	V型	纯涤纶	153
12#	平纹高弹雪梨纺	450 tex飘纱面料	V型	纯涤纶	199

因子	复合面料种类		充气量		充气复合面料厚度		充气后平均热阻
因子	皮尔逊相关性	Sig.双侧	皮尔逊相关性	Sig.双侧	皮尔逊相关性	Sig.双侧	皮尔逊相关性	Sig.双侧
复合面料种类	1.000		0.000	1.000	0.140	0.285	0.076	0.562
充气量	0.000	1.000	1.000		0.946^**	0.000	0.823^**	0.000
充气复合面料厚度	0.140	0.285	0.946^**	0.000	1.000		0.748^**	0.000
充气后平均热阻	0.076	0.562	0.823^**	0.000	0.748^**	0.000	1.000

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