Heat insulation characteristics of high bulk nonwovens
| Autor: | V. K. Kothari, R. S. Rengasamy, G. Gnanauthayan |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010407 polymers
Materials science Polymers and Plastics business.industry Materials Science (miscellaneous) Thermal resistance 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Industrial and Manufacturing Engineering 0104 chemical sciences Polyester Pipe insulation Thermal insulation Area density Composite material 0210 nano-technology General Agricultural and Biological Sciences business Porosity Layer (electronics) Extreme Cold Weather Clothing |
| Zdroj: | The Journal of The Textile Institute. 108:2173-2179 |
| ISSN: | 1754-2340 0040-5000 |
| DOI: | 10.1080/00405000.2017.1316697 |
| Popis: | The insulation layer is a vital component in cold weather clothing. Majority of the heat loss from the body is restricted by the insulation layer. Hence, the design of insulation layer is critical for the performance of extreme cold weather clothing. The factors which influence the thermal resistance of nonwovens’ layer are fibre denier, fibre cross-section and bulk density, porosity and thickness of nonwovens. In this study, we try to optimize these parameters for high-bulk thermal bonded nonwovens using solid and hollow polyester fibres of different deniers. The effect of these parameters and their interdependency has been evaluated by suitable statistical analysis with the help of Design expert software. Contribution analysis has been carried out to ascertain the importance of thickness, areal density and fibre denier and shape. Finer and hollow fibres give better thermal insulation than the coarser and solid fibres. Nonwovens have very high porosity, especially the lighter and thinner ones hav... |
| Databáze: | OpenAIRE |
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