Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (03): 133-138.doi: 10.13475/j.fzxb.20180400506

• Apparel Engineering • Previous Articles     Next Articles

Evaluation of thermal protection performance of honeycomb sandwich structure fabric for fireproof clothing

DU Feifei1, LI Xiaohui1,2,3(), ZHANG Siyan1   

  1. 1. College of Fashion and Design, Donghua University, Shanghai 200051, China
    2. Institute of Design and Innovation,Tongji University, Shanghai 200080, China
    3. Key Laboratory of Clothing Design and Technology, Ministry of Education,Donghua University, Shanghai 200051, China
  • Received:2018-04-02 Revised:2018-11-21 Online:2019-03-15 Published:2019-03-15
  • Contact: LI Xiaohui E-mail:lxh@dhu.ehu.cn

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Abstract:

In view of the heaviness and stuffiness of current fireproof clothing, a honeycomb sandwich structure with heat insulation, high temperature resistance, moisture absorption and ventilation was proposed to improve its performance of functional protection and heat and moisture comfort. By analyzing the inherent heat transfer mechanism of honeycomb sandwich structure, 7 different kinds of honeycomb sandwich structures were designed and fabricated. The current typical layers of fabrics were chosen as the experimental samples. Taking into account of the fabric weight and the sorts of honeycomb sandwich structure, 21 kinds of experimental schemes were designed. Thermal protection performance (TPP) tester was used to evaluate the thermal protection performance, and further the effect of side length, wall thickness and core thickness of honeycomb sandwich structure on thermal protection performance of fireproof clothing was investigated. Experimental results show that the honeycomb sandwich structure is light and can meet the requirements of thermal protection performance. The smaller the side length, the larger the wall thickness and the larger the core thickness, the larger the TPP value of the fabric and the better the thermal protection performance.

Key words: fireproof clothing, honeycomb sandwich structure, thermal protection performance, thermal-wet comfort

CLC Number: 

  • TS941.73

Tab.1

Fabric samples and fundamental characteristics"

面料
编号		 成分 颜色 面密度/
(g·m-2)		 厚度/
mm		 透气率/
(L·m-2·s-1)
A Nomex?? IIIA 藏青色 211.6 0.65 206.57
B I-70/聚四氟乙烯 浅黄+白色 106.1 0.66 0.84
C1 I-70毡Nomex?? 浅黄 72.3 0.81 1 658.02
C2 I-120毡Nomex?? 浅黄 128.4 1.28 1 087.65
C3 I-150毡Nomex?? 浅灰 151.3 1.65 988.50
D 阻燃粘胶 浅灰 125.6 0.61 1 262.45

Fig.1

Schematic diagram of sandwich layer honeycomb structure"

Tab.2

Parameters of honeycomb structure"

蜂窝孔形
结构编号		 边长/
mm		 壁厚/
mm		 质量减轻
百分比/%
E1 实心 实心 0
E2 3 5.2 25.1
E3 3 2.6 44.2
E4 6 5.2 44.4
E5 6 2.6 64.2
E6 9 5.2 56.2
E7 9 7.8 44.4

Tab.3

Experimental scheme design"

实验
编号		 外层 防水透
气层		 隔热
层		 舒适
层		 蜂窝孔形
结构
1 A B C1 D E1
2 A B C1 D E2
3 A B C1 D E3
4 A B C1 D E4
5 A B C1 D E5
6 A B C1 D E6
7 A B C1 D E7
8 A B C2 D E1
9 A B C2 D E2
10 A B C2 D E3
11 A B C2 D E4
12 A B C2 D E5
13 A B C2 D E6
14 A B C2 D E7
15 A B C3 D E1
16 A B C3 D E2
17 A B C3 D E3
18 A B C3 D E4
19 A B C3 D E5
20 A B C3 D E6
21 A B C3 D E7

Fig.2

Schematic diagram of thermal protection performance tester"

Tab.4

Areal density of honeycomb core layersg/m2"

蜂窝孔形结构 C1 C2 C3
E1 72.3 128.0 151.0
E2 54.2 96.0 113.3
E3 40.2 71.2 84.0
E4 40.2 71.2 84.0
E5 25.9 45.8 54.1
E6 31.7 56.1 66.1
E7 40.2 71.2 84.0

Fig.3

Influence of honeycomb side length on TPP value"

Fig.4

Influence of honeycomb wall thickness on TPP value. (a) Side length of honeycomb of 3 mm; (b) Side length of honeycomb of 6 mm; (c) Side length of honeycomb of 9 mm"

Fig.5

Influence of honeycomb core thickness on TPP value"

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