火焰环境下隔热内衬气凝胶球粒的耐热特性

doi:10.16265/j.cnki.issn1003-3033.2020.05.008

中国安全科学学报 ›› 2020, Vol. 30 ›› Issue (5): 48-53.doi: 10.16265/j.cnki.issn1003-3033.2020.05.008

火焰环境下隔热内衬气凝胶球粒的耐热特性

鲁义^1,2 副教授, 杨帆¹, 施式亮¹ 教授, 吴芳华¹, 王金鹏¹

1.湖南科技大学资源环境与安全工程学院,湖南湘潭 411201;
2.湖南科技大学南方煤矿瓦斯与顶板灾害预防控制安全生产重点实验室,湖南湘潭411201

收稿日期:2020-02-18 修回日期:2020-04-12 出版日期:2020-05-28 发布日期:2021-01-28
作者简介:鲁义(1986—),男,江西新干人,博士,副教授,博士生导师,主要从事火灾科学与技术方面的研究。E-mail:luyijx@163.com。
基金资助:
湖南省安全生产重点专项资金项目(湘财企指【2017】20号);湖南省自然科学基金资助(2019JJ50152)。

Heat resistance characteristics of aerogel spherules for thermal insulation lining in flame environment

LU Yi, YANG Fan, SHI Shiliang, WU Fanghua, WANG Jinpeng

1. School of Resource & Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan Hunan 411201, China;
2. Work Safety Key Lab on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines, Hunan University of Science and Technology, Xiangtan Hunan 411201,China

Received:2020-02-18 Revised:2020-04-12 Online:2020-05-28 Published:2021-01-28

摘要/Abstract

摘要： 为减少或避免消防员在火灾救援活动中遭受热伤害,以SiO₂气凝胶粉末、聚乙烯醇和水为原材料,制备一种用于充填消防服隔热内衬的气凝胶球粒,其压缩变形率在15.83%以内。首先探究气凝胶球粒的耐热机制及热传导影响因素;然后对其进行微观结构表征和比表面积测试;最后在不同火焰温度下测试耐热特性。结果表明:在同一测试温度下,气凝胶球粒表面变黑程度越大,所需时间越长;温度低于168.2 ℃时,球粒表面最大变黑程度为80%;随着温度的升高,球粒达到同一变黑程度所需的时间逐渐减少;热重试验得出气凝胶球粒的失重率比气凝胶粉末小。

关键词: 火焰环境, 隔热内衬, 气凝胶球粒, 耐热特性, 微观结构

Abstract: In order to reduce or prevent heat injuries for firefighters in rescue activities, with SiO₂ aerogel powder, polyvinyl alcohol and water as raw materials, aerogel spherules, filling for thermal insulation lining of fire-protection suits, were developed, whose compression deformation rate was less than 15.83%. Firstly, its heat-resistant mechanism and influencing factors of heat conduction were investigated. Then, microstructure was characterized and specific surface area was tested. Finally, heat resistance experiment was carried out at different flame temperatures. The results show that when at same testing temperature, the greater degree of blackening of its surface is, the longer it takes. When it is lower than 168.2 ℃, the maximum blackening degree of surface is 80%. Along with increase of temperature, the time required to reach a certain blackening degree decreases gradually. It is also found that weight loss rate of aerogel spherules is smaller than that of aerogel powders.

Key words: flame environment, thermal insulation lining, aerogel spherules, heat resistance, microstructure

中图分类号:

X932

鲁义, 杨帆, 施式亮, 吴芳华, 王金鹏. 火焰环境下隔热内衬气凝胶球粒的耐热特性[J]. 中国安全科学学报, 2020, 30(5): 48-53.

LU Yi, YANG Fan, SHI Shiliang, WU Fanghua, WANG Jinpeng. Heat resistance characteristics of aerogel spherules for thermal insulation lining in flame environment[J]. China Safety Science Journal, 2020, 30(5): 48-53.

参考文献

[1] 朱京城,张嘉琪.火灾救生舱多层隔热材料降温效果试验研究[J].中国安全科学学报,2019,29(9): 90-95.
ZHU Jingcheng, ZHANG Jiaqi. Study on cooling effects of insulation layers of life rescue capsule [J]. China Safety Science Journal, 2019, 29(9): 90-95.
[2] 补利军,于振江,邵泽开.集成DEMATEL/ISM的高校消防安全管理影响因素研究[J].中国安全科学学报,2018,28(11):129-134.
BU Lijun, YU Zhenjiang, SHAO Zekai. Study on factors influencing fire safety management in universities based on DEMATEL/ISM [J]. China Safety Science Journal, 2018, 28(11): 129-134.
[3] 李晓琳,于伟东.耐高温表层材料选择及层合后隔热性对比分析[J].中国安全科学学报,2019,29(4): 127-132.
LI Xiaolin,YU Weidong. Selection of surface materials for high temperature insulation and comparative analysis of heat insulation performance after lamination [J]. China Safety Science Journal, 2019, 29(4): 127-132.
[4] 易灿南,施式亮,胡鸿, 等.中美社区消防安全比较研究[J].中国安全科学学报,2017,27(4): 66-71.
YI Cannan, SHI Shiliang, HU Hong, et al. Comparative study on community fire safety in China and America [J]. China Safety Science Journal, 2017, 27(4): 66-71.
[5] 蔡普宁,林娜,赵领航.消防服用芳纶隔热层面料的热防护性能研究[J].产业用纺织品,2015,33(6): 21-24.
CAI Puning, LIN Na, ZHAO Linghang. Research on the thermal protection performance of the thermal insulation layer of aramid fabric for fire suit [J]. Technical Textiles, 2015, 33(6): 21-24.
[6] 贾亚楠.消防服隔热层的产品设计及工艺性能研究[D].上海:东华大学,2016.
JIA Ya'nan. Study on product design and spunlace process of heat insulation layer for fire clothing [D]. Shanghai: Donghua University, 2016.
[7] 杨蕊.新型消防灭火护服的开发及其性能研究[D].天津:天津工业大学,2016.
YANG Rui. Development and performance research of new fighting garment [D]. Tianjin:Tianjin Polytechnic University, 2016.
[8] 邵再东,张颖,程璇.新型力学性能增强二氧化硅气凝胶块体隔热材料[J].化学进展,2014,26(8): 1 329-1 338.
SHAO Zaidong, ZHANG Ying, CHENG Xuan. Advances in mechanically enhanced silica aerogel monoliths as thermal insulating materials [J]. Progress in Chemistry, 2014, 26(8): 1 329-1 338.
[9] 徐壁.基于纳米结构ZnO、SiO₂的功能棉制品及新型气凝胶的制备与应用性能[D].上海:东华大学,2010.
XU Bi. Preparation and properties of functional cotton and novel aerogels based on nano-structured ZnO and SiO₂ [D]. Shanghai: Donghua University, 2010.
[10] 何雅玲,谢涛.气凝胶纳米多孔材料传热计算模型研究进展[J].科学通报,2015,60(2): 137-163.
HE Yaling, XIE Tao. A review of heat transfer models of nanoporous silica aerogel insulation material [J]. Chinese Science Bulletin, 2015, 60(2): 137-163.
[11] 李朝宇. SiO₂复合气凝胶的制备及其性能研究[D].天津:天津科技大学,2017.
LI Zhaoyu. The syntiesis and characteristic of composite SiO₂ aerogels [D].Tianjin: Tianjin University of Science and Technology, 2017.
[12] 邓忠生,张会林,魏建东, 等. 掺杂SiO₂气凝胶结构及其热学特性研究[J].航空材料学报,1999, 19(4): 38-43.
DENG Zhongsheng, ZHANG Huilin, WEI Jiandong, et al. Structure and thermal properties of doped SiO₂ aerogels [J]. Journal of Aeronautical Materials, 1999, 19(4): 38-43.
[13] 高涛,王锐,王耿媛.全自动比表面积分析仪校准方法及其不确定度评定研究[J].计量与测试技术,2016,43(1): 71-72.
GAO Tao, WANG Rui, WANG Gengyuan. Research on calibration method of automatic apecific aurface area analyzer and its uncertainty evaluation [J]. Metrology & Measurement Technique, 2016, 43(1): 71-72.
[14] 徐志祥,潘振华,张彭岗.大豆磷脂对乳化炸药热稳定性影响研究[J].中国安全科学学报.2015,25(5): 49-55.
XU Zhixiang, PAN Zhenhua, ZHANG Penggang. Influence of phosphatide on emulsion explosives thermal stability [J]. China Safety Science Journal, 2015, 25(5): 49-55.
[15] 罗帅,曹雄,侯向军, 等. 奥克托今在丙酮中的热安全性研究[J].中国安全科学学报,2015,25(2): 66-70.
LUO Shuai, CAO Xiong, HOU Xiangjun, et al. Research on thermal safety of HMX in acetone [J]. China Safety Science Journal, 2015, 25(2): 66-70.

火焰环境下隔热内衬气凝胶球粒的耐热特性

Heat resistance characteristics of aerogel spherules for thermal insulation lining in flame environment

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