| 摘要: |
| 为经济便捷地对膨胀型饰面防火涂料进行防火性能检测，设计了1种简易的防火性能测试装置.在一些简化假设的基础上，针对该测试方法，提出了1个包含6个关键变量的传热数学模型.研究发现:6个关键变量中，反映外炭化层隔热能力以及热源综合影响的参数i值对防火涂料防火保护时间的影响最为关键.利用曲线拟合，获得i值的计算公式，并通过测试起始涂覆厚度不同的1组透明饰面型防火涂料样品，估算出了该防火涂料的i值. |
| 关键词: 膨胀防火涂料 传热模型 防火性能 i值 |
| DOI：103969/jissn1007 9629201406032 |
| 分类号: |
| 基金项目:广东省教育部产学研结合项目(2010A090200004) |
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| A Simple Method to Test the Fireproof Performances of Intumescent Fire Resistant Coatings |
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WANG Guojian, HUANG Yan
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School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
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| Abstract: |
| Based on a simplified mathematical model involving certain approximations, a simple equipment was designed for testing the fire resistant ability of the fire resistant coating. Six key variables were involved in the model. Numerical design of experiments allows identifying the influent factors which govern the intumescent behavior. It was found that i, a parameter reflecting the comprehensive effect of heat insulation ability of exterior carbonization layer as well as the heat source, shows the most important effect, and its formula is obtained by fitting of the curve. In the end, this method was carried out on a series of samples of a fire resistant coating with different original thickness, and its i value was calculated. |
| Key words: intumescent fire resistant coating heat transfer modeling fireproof performance i value |
