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Influence of the Needle Number on the Heat Insulation Performance of Pre-oxidized Fibre Felts

Research and development

Authors:

  • Zhao Xiaoming
    School of Textiles, Tianjin Polytechnic University, Tianjin, P. R. China
  • Zhao Xiaoming
    Key Laboratory of Advanced Textile Composite Materials, Ministry of Education of China, Tianjin, P. R. China
  • Liu Yuanjun
    School of Textiles, Tianjin Polytechnic University, Tianjin, P. R. China
  • Liu Yuanjun
    Key Laboratory of Advanced Textile Composite Materials, Ministry of Education of China, Tianjin, P. R. China
  • Liang Tenglong
    School of Textiles, Tianjin Polytechnic University, Tianjin, P. R. China

Nr DOI: 10.5604/01.3001.0011.7307

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Abstract:

Many factors were needed to be considered to prepare pre-oxidised fibre felts with excellent heat insulation performance, and different production processes showed differences in the heat insulation performance of pre-oxidised fibre felts. In order to probe into the influence of the production process on the heat insulation performance of materials, a large number of experiments were needed to be carried out. For needle-punched nonwoven pre-oxidised fibre felts, web features, needle characteristics and the needle process will all affect the structure of pre-oxidised fibre felts, thus bringing a major influence on the heat insulation performance of pre-oxidised fibre felts. In this paper, the influence of the needle number on the heat insulation performance of pre-oxidised fibre felts was mainly studied. Results showed that an increase in the needle number will cause a decrease in the thickness and gram weight of pre-oxidised fibre felts, and a weakening trend in the heat insulation performance of pre-oxidiaed fibre felts with an increasing needle number at room temperature and at 100-200 °C was shown. Moreover when the needle number was 1 and 2, the pre-oxidised fibre needled felts had good heat insulation performance, and for pre-oxidized fibre felts at different needle numbers with increasing temperature, the temperature difference in a steady
state increased linearly.

Tags:

needle number, pre-oxidized fibre felt, heat insulation performance, thermal conductivity coefficient, back temperature.

Citation:

Zhao X, Liu Y, Liang T. Influence of the Needle Number on the Heat Insulation Performance of Pre-oxidized Fibre Felts. FIBRES & TEXTILES in Eastern Europe 2018; 26, 3(129): 80-86. DOI: 10.5604/01.3001.0011.7307

Published in issue no 3 (129) / 2018, pages 80–86.

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