The Comparison of Sound Absorption Performance and Thermal Conductivity of Glass Fiber Felt Produced by Centrifugal-Spinneret-Blow System and Fire-Spinneret-Blow System

摘要：

　　In this paper,experiments to investigate fibrous insulating materials have been performed.Glass wool felt made of centrifugal-spinneret-blow method and fire-spinneret-blow method were studied.Scanning electron microscopy (SEM),impedance tube apparatus and heat flow meter (NETZSCH HFM 436) were used to assess the mechanism of the effect of fiber diameter on the thermal conductivity and absorption performance of materials.It has been found from the experiments that the coefficient of thermal conductivity of all analyzed materials is strongly dependent on the Fiber diameter: the thinner the fiber diameter,the lower the thermal conductivity.The sound absorption ability of FSBGF can reach the Ⅲ rating requirement of sound absorption material according to national standard.

关键词： acoustic heat transfer centrifugal-spinneret-blow fire-spinneret-blow glass fiber felt

作者: Wu Cao Chen Zhaofeng Yang Yong Chen Zhou Xu Tengzhou Li Yanming Wang Weiwei Bao Shuting

作者单位: College of Material 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: 220-224

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）