[1]陈春,钱春香,许燕波.有机组分在保温材料中的极限体积分数[J].东南大学学报(自然科学版),2010,40(6):1304-1307.[doi:10.3969/j.issn.1001-0505.2010.06.033]
 Chen Chun,Qian Chunxiang,Xu Yanbo.Theoretical analysis and experimental verification on critical volume fraction of organic components in thermal insulation materials[J].Journal of Southeast University (Natural Science Edition),2010,40(6):1304-1307.[doi:10.3969/j.issn.1001-0505.2010.06.033]
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有机组分在保温材料中的极限体积分数()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
40
期数:
2010年第6期
页码:
1304-1307
栏目:
材料科学与工程
出版日期:
2010-11-20

文章信息/Info

Title:
Theoretical analysis and experimental verification on critical volume fraction of organic components in thermal insulation materials
作者:
陈春 钱春香 许燕波
东南大学江苏省土木工程材料重点实验室, 南京 211189
Author(s):
Chen Chun Qian Chunxiang Xu Yanbo
Jiangsu Key Laboratory of Construction Materials, Southeast University, Nanjing 211189, China
关键词:
有机保温组分 极限体积分数 分层模型 连续接触模型 燃烧
Keywords:
organic insulation component critical volume fraction hierarchical model continuous contact model combustion
分类号:
TU520
DOI:
10.3969/j.issn.1001-0505.2010.06.033
摘要:
利用概率理论分别建立分层模型和连续接触模型,用以计算含有有机保温组分的多元复合保温材料中出现贯穿性裂缝的概率,并通过燃烧实验来验证模型的计算结果.燃烧实验结果表明连续接触模型的计算结果与实验结果更加吻合.理论分析和燃烧实验结果均表明:对于多元复合保温材料,其有机组分体积分数存在一个极限值,超过极限体积分数后,有机组分相互接触,在保温材料中形成贯穿性裂缝的概率急剧增加,从而导致保温材料耐火性能明显下降; 在均匀分布的情况下,有机保温组分的极限体积分数数值与其颗粒形貌参数有关.
Abstract:
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.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 陈春(1975—),男,博士生,讲师; 钱春香(联系人),女,博士,教授,博士生导师,cxqian@seu.edu.cn.
引文格式: 陈春,钱春香,许燕波.有机组分在保温材料中的极限体积分数理论分析与实验验证[J].东南大学学报:自然科学版,2010,40(6):1304-1307. [doi:10.3969/j.issn.1001-0505.2010.06.033]
更新日期/Last Update: 2010-11-20