Journal of Textile Research ›› 2020, Vol. 41 ›› Issue (01): 118-123.doi: 10.13475/j.fzxb.20190100606

• Apparel Engineering • Previous Articles     Next Articles

Influence of steam exposure condition on thermal protective performance of fabrics

QIU Hao1, SU Yun1,2, WANG Yunyi1,2,3()   

  1. 1. College of Fashion and Design, Donghua University, Shanghai 200051, China
    2. Key Laboratory of Clothing Design and Technology, Ministry of Education, Donghua University, Shanghai 200051, China
    3. Shanghai International Institute of Design and Innovation, Tongji University, Shanghai 200080, China
  • Received:2019-01-07 Revised:2019-04-11 Online:2020-01-15 Published:2020-01-14
  • Contact: WANG Yunyi E-mail:wangyunyi@dhu.edu.cn

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Abstract:

Aiming to evaluate the effects of steam pressure and distance between hot steam and human body on thermal and moisture transfer of fabrics, this study was carried out to characterize thermal protective performance of fabrics under different steam pressures and jet distances. The relationship between water storage, steam permeability and thermal protective performance under the steam heat exposure condition was analyzed, and the influence of steam pressure on water storage and steam permeability was explored. The research findings indicate that increasing steam pressure and reducing jet distance can both decrease the thermal insulation, and evidently reduce the thermal protective performance of fabrics under steam exposure environment. Air permeability of fabric has a significant negative correlation with second degree burn time. In addition, both water storage and steam permeability are positively correlated with steam pressure, also with fabric's moisture regain and air permeability. It is concluded that the decrease of water absorption and steam penetration determine thermal protective performance of fabrics.

Key words: fabric for thermal protective, thermal protective performance, steam pressure, jet distance, second degree burn time

CLC Number: 

  • TS941.73

Tab.1

Basic parameters of fabrics for testing"

织物编号 纤维成分 组织结构 面密度/
(g·m-2)		 厚度/mm 透气性/
(mm·s-1)		 标准
回潮率/%		 饱和含
水量/g
F1 芳纶1414 斜纹 210 0.66 124.91 3.53 3.13
F2 芳纶1414 平纹 150 0.53 649.63 3.63 6.23
F3 50%芳纶1313,50%芳纶1414 斜纹 210 0.54 153.60 3.20 1.25
F4 50%芳纶1313,50%纤维素纤维 平纹 150 0.33 608.47 2.88 0.80
F5 93%芳砜纶,5%凯夫拉,2%碳纤维 斜纹 250 0.53 122.42 3.09 1.04
F6 93%芳砜纶,5%芳纶,2%碳纤维 斜纹 200 0.68 589.74 4.96 9.80
F7 98%芳砜纶,2%碳纤维 平纹 150 0.42 233.09 3.29 2.92

Fig.1

Thermocouple position of front and back of fabric"

Fig.2

Moisture storage in fabrics under different steam pressures"

Tab.2

Steam permeability under different pressures"

织物
编号		 50 kPa 100 kPa 150 kPa
渗透
量/g		 标准
差		 渗透
量/g		 标准
差		 渗透
量/g		 标准
差
F1 0.03 0.00 0.06 0.01 0.09 0.01
F2 0.06 0.00 0.19 0.00 0.45 0.02
F3 0.04 0.01 0.06 0.01 0.11 0.00
F4 0.11 0.01 0.33 0.03 0.76 0.04
F5 0.05 0.01 0.08 0.01 0.10 0.01
F6 0.05 0.01 0.14 0.01 0.33 0.01
F7 0.04 0.01 0.09 0.00 0.16 0.00

Fig.3

Front(a)and back(b)temperature of F1 during thermal exposure stage"

Tab.3

Temperature differences between front and back of fabric for upper and lower sensors"

织物
编号		 上传感器 下传感器
温差/℃ 标准差 温差/℃ 标准差
F1 8.32 0.15 5.68 0.14
F2 6.64 0.68 4.35 0.10
F3 6.99 0.72 4.92 0.01
F4 5.63 0.14 4.58 0.49
F5 7.27 0.05 5.47 0.67
F6 6.30 0.50 4.43 0.18
F7 5.56 0.04 5.10 0.05

Fig.4

Second degree burn time under different steam pressures"

Fig.5

Second degree burn time under different jet distances"

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