The Influence of Different Cross-sectional Structure of Glass Fiber Felt on Its Thermal Conductivity and Heat Transfer Mechanism

摘要：

　　Glass fiber felts are getting more and more popular on the market as thermal reduction in the field of building engineering due to the advantages of low thermal conductivity,good insulation properties,stable chemical properties,etc.In this paper,glass fiber felt was produced by flame blowing process,thermal conductivity of different cross-sectional morphology of glass fiber felts such as micro-layer and random was considered.The thermal conductivity were determined by heat flow meter thermal conductivity instrumentation (Netzsch HFM 436),cross-sectional morphology of glass fiber were observed by optical microscope.The results showed that thermal conductivity coefficient of glass fiber felt with similar areal density and thickness was random > micro-layered,and the mean thermal conductivity were31mW/(m · K) and 36mW/(m · K),respectively.Lastly,the conclusion that using the heat transfer mechanism of the fibrous materialst to explain this phenomenon had also been drawn by experiment.

关键词： glass fiber felt cross-sectional structure thermal conductivity heat transfer mechanism

作者: Li Yanming Chen Zhaofeng Yang Yong Wu Cao

作者单位: Super Insulation Composite Laboratory,College of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R.China

会议类型: 国际会议

会议名称: The 12th International Vacuum Insulation Symposium (IVIS 2015)(第十二届国际真空绝热材料会议)

会议地点: 南京

会议语种:英文

页码: 34-36

在线出版日期: 2015-09-01（万方平台首次上网日期，不代表论文的发表时间）