乳胶泡沫引火位置对火蔓延特性的影响

doi:10.11949/j.issn.0438-1157.20170347

化工学报 ›› 2017, Vol. 68 ›› Issue (9): 3623-3630.DOI: 10.11949/j.issn.0438-1157.20170347

• 材料化学工程与纳米技术 • 上一篇下一篇

乳胶泡沫引火位置对火蔓延特性的影响

郭晨宁¹, 黄冬梅^1,2, 张明振¹, 赵玉法³

1 中国计量大学质量与安全工程学院, 浙江杭州 310018;
2 浙江省家具检测技术研究重点实验室, 浙江杭州 310018;
3 喜临门家具股份有限公司, 浙江绍兴 312000

收稿日期:2017-04-05 修回日期:2017-06-27 出版日期:2017-09-05 发布日期:2017-09-05
通讯作者: 黄冬梅
基金资助:
浙江省自然科学基金项目（17E060004）；浙江省大学生科研团队项目（2016R409047）；国家自然科学基金项目（51306168）。

Effect of ignition position on flame spread of natural rubber latex foam

GUO Chenning¹, HUANG Dongmei^1,2, ZHANG Mingzhen¹, ZHAO Yufa³

1 College of Quality and Safety Engineering, China Jiliang University, Hangzhou 310018, Zhejiang, China;
2 Key Laboratory of Furniture Inspection Technology of Zhejiang Province, Hangzhou 310018, Zhejiang, China;
3 Xilinmen Furniture Co., Ltd., Shaoxing 312000, Zhejiang, China

Received:2017-04-05 Revised:2017-06-27 Online:2017-09-05 Published:2017-09-05
Contact: 10.11949/j.issn.0438-1157.20170347
Supported by:
supported by the Natural Science Foundation of Zhejiang Province (17E060004),Zhejiang Undergraduate Research Team Project (2016R409047) and the National Natural Science Foundation of China (51306168).

摘要/Abstract

摘要：

利用自行搭建的小尺寸实验平台，开展了对不同点火位置的乳胶泡沫材料燃烧过程的对比实验，通过对火蔓延过程中的部分重要参数（如最大火焰高度、火蔓延速度和蔓延过程中样品表面温度变化等）的测定，分析了点火位置不同时，乳胶泡沫材料的火蔓延特性。结果表明：边缘点火和中间点火条件下，最大火焰高度分别为397和491 mm，火蔓延速度分别为1.8和0.97 mm·s^-1；边缘点火时的乳胶泡沫材料表面火蔓延过程中的温度低于中间点火情况下。

关键词: 火蔓延, 泡沫, 形态, 温度分布

Abstract:

Natural rubber (NR) latex foam is a typical cellular structure material manufactured by liquid latex compounds and has three dimension porous network structures. This kind of material has tremendous fire hazard because it is easily ignited and flame spreads extremely fast after ignited. Ignition position is one of the most important factors to determine the fire behavior of horizontal material. The aim of this study was to investigate the fire behavior of NR latex foam under center and edge ignition positions to provide the basic data for fire hazard evaluation of enclosure fire. Two types of experiments with center and edge ignition positions were carried out in a small-size flame spread experiment bench. The sample size was 25 cm×25 cm×2 cm with 6 mm diameter hole distribution in it. The temperature both on and above the sample surface and the flame front position were monitored during the experiment. The fire process was also recorded in horizontal and an angle of 45° to the horizontal direction. Then the flame height and flame spread rate were estimated. The results show that the maximum flame heights during the edge and center ignition condition test are 397 and 491 mm, respectively. The flame spread rates under the two ignition positions condition are 1.8 and 0.97 mm·s^-1, respectively. And the flame temperature under the edge ignition condition test is lower than that of the center ignition test.

Key words: flame spread, foam, morphology, temperature distribution

中图分类号:

X932

郭晨宁, 黄冬梅, 张明振, 赵玉法. 乳胶泡沫引火位置对火蔓延特性的影响[J]. 化工学报, 2017, 68(9): 3623-3630.

GUO Chenning, HUANG Dongmei, ZHANG Mingzhen, ZHAO Yufa. Effect of ignition position on flame spread of natural rubber latex foam[J]. CIESC Journal, 2017, 68(9): 3623-3630.

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乳胶泡沫引火位置对火蔓延特性的影响

Effect of ignition position on flame spread of natural rubber latex foam

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