SiO2气凝胶/芳纶非织造布复合织物的防护功能

doi:10.13475/j.fzxb.20181002306

纺织学报 ›› 2019, Vol. 40 ›› Issue (10): 79-84.doi: 10.13475/j.fzxb.20181002306

SiO₂气凝胶/芳纶非织造布复合织物的防护功能

王璐¹, 丁笑君², 夏馨², 王虹³, 周小红¹()

1.浙江理工大学材料与纺织学院、丝绸学院, 浙江杭州 310018
2.服装国家级实验教学示范中心, 浙江杭州 310018
3.浙江省普瑞科技有限公司, 浙江杭州 311215

收稿日期:2018-10-12 修回日期:2019-06-26 出版日期:2019-10-15 发布日期:2019-10-23
通讯作者: 周小红
作者简介:王璐(1994—),女,硕士生。主要研究方向为现代纺织技术及其新产品。
基金资助:
浙江省科技计划项目(2017F30071)

Protective function of SiO₂ aerogel hybrid/aramid nonwovens fabric

WANG Lu¹, DING Xiaojun², XIA Xin², WANG Hong³, ZHOU Xiaohong¹()

1. Materials and Textile Institute, Silk College, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
2. National Experiment Teaching Center of Clothing, Hangzhou, Zhejiang 310018, China
3. Zhejiang Prui Technology Co., Ltd., Hangzhou, Zhejiang 311215, China

Received:2018-10-12 Revised:2019-06-26 Online:2019-10-15 Published:2019-10-23
Contact: ZHOU Xiaohong

摘要/Abstract

摘要：

为研究SiO₂气凝胶对芳纶非织造布抗压、阻燃防护功能的影响,以芳纶非织造布为骨架材料,将SiO₂气凝胶施加到芳纶非织造布表面,制备出SiO₂气凝胶混杂芳纶非织造布防护材料。通过扫描电子显微镜对其结构形貌进行表征,借助万能材料试验机对其抗压性能进行分析,最后利用热常数分析仪和火焰手系统,测试并评估了制备的防护材料的阻燃隔热性能。结果表明:SiO₂气凝胶以不同大小的块状、颗粒状填充进入芳纶非织造布纤维间的空隙;SiO₂气凝胶可增强芳纶非织造布的抗压性能,且降低其导热系数;混杂SiO₂气凝胶后芳纶非织造布总的吸收能量值降低,说明SiO₂气凝胶可明显增强芳纶非织造布的热防护效果。

关键词: SiO₂气凝胶, 芳纶非织造布, 阻燃隔热, 火焰手系统, 热防护织物

Abstract:

In order to research the effect of SiO₂ aerogel on the anti-pressure, flame retardant protective functions of aramid nonwoven fabric, using aramid nonwoven fabric as the skeleton material, applying SiO₂ aerogel to the surface of it, preparing SiO₂ aerogel hybrid aramid nonwoven protective material. The structure was characterized by scanning electron microscopy, and its compression function was analyzed with a universal material testing machine. Finally, using the thermal constant analyzer and the flame hand system, the flame retardant insulation properties of the prepared protective materials were tested and evaluated. The results show that the SiO₂ aerogel is filled into the gap between the fibers of the aramid nonwoven fabric in blocks or granules of different sizes. SiO₂ aerogel can enhance the pressure resistance of aramid nonwoven fabric and reduce its thermal conductivity, the total absorbed energy value of the aramid nonwoven fabric is reduced after the hybrid SiO₂ aerogel. It is illustrated that the SiO₂ aerogel can significantly enhance the thermal protection effect of aramid nonwoven fabric.

Key words: SiO₂ aerogel, aramid nonwoven fabric, flame retardant and heat insulation, flame hand system, thermal protective fabric

中图分类号:

TS106.5

王璐, 丁笑君, 夏馨, 王虹, 周小红. SiO₂气凝胶/芳纶非织造布复合织物的防护功能[J]. 纺织学报, 2019, 40(10): 79-84.

WANG Lu, DING Xiaojun, XIA Xin, WANG Hong, ZHOU Xiaohong. Protective function of SiO₂ aerogel hybrid/aramid nonwovens fabric[J]. Journal of Textile Research, 2019, 40(10): 79-84.

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样品编号	厚度/ mm	面密度/ (g·m^-2)	体积密度/ (10^-3g·cm^-3)
1^#	0.52	64.4	124
2^#	0.90	261.8	291
3^#	0.58	100.3	173
4^#	1.45	329.1	235
5^#	1.51	372.1	246
6^#	2.05	470.7	233
7^#	1.95	409.3	225

样品编号	压缩功/J	能量吸收能力/ (kJ·m^-3)	导热系数平均值/(W·m^-1·K^-1)
1^#	0.359	0.182	0.056 79
2^#	0.563	0.221	0.045 50
3^#	0.429	0.423	0.034 69
4^#	0.641	0.190	—
5^#	0.631	0.202	—
6^#	0.913	0.149	—
7^#	0.799	0.101	—

样品编号	总的吸收能量/ kJ	烧伤程度占比/%							平均热通量/ (kW·m^-2)
样品编号	总的吸收能量/ kJ	没有烧伤		一级烧伤		二级烧伤		三级烧伤	平均热通量/ (kW·m^-2)
1^#	12.190	—	—		11.76		88.24			35.5
2^#	11.034	—	—		38.24		61.76			19.8
4^#	10.400	—	—		55.88		44.12			10.5
5^#	8.657	—	—		88.24		11.76			7.9
6^#	5.931	35.29	11.77		52.94		—			4.7
7^#	6.153	8.82	—		91.18		—			8.2

SiO₂气凝胶/芳纶非织造布复合织物的防护功能

Protective function of SiO₂ aerogel hybrid/aramid nonwovens fabric

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