Theoretical analysis and experimental verification on critical volume fraction of organic components in thermal insulation materials

被引：0

作者：

Chen C. ^{[1
]}

Qian C. ^{[1
]}

Xu Y. ^{[1
]}

机构：

[1] Jiangsu Key Laboratory of Construction Materials, Southeast University

来源：

Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition) | 2010年 / 40卷 / 06期

关键词：

Combustion; Continuous contact model; Critical volume fraction; Hierarchical model; Organic insulation component;

D O I：

10.3969/j.issn.1001-0505.2010.06.033

中图分类号：

学科分类号：

摘要：

The probability of perforative porosity of organic component in the composite system is calculated with the hierarchical model and the continuous contact model. The result of the combustion experiment shows that the continuous contact model provides results more consistent with the experimental data. Theoretical derivation and combustion experiment show that there exists a limit value of organic component's volume fraction. Beyond this limit value, the probability of perforative porosity of organic component in the system increases rapidly, which obviously deteriorates the fire endurance of the thermal insulation system. The particle morphology parameters also affect the value of organic component's critical volume fraction in the case of uniform distribution.

引用

页码：1304 / 1307

页数：3

共 8 条

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