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<p>The effects of thermomechanical processing regimes of nonwoven needlepunch cloths based on poly(ethylene terephthalate) fibers of linear density 0.33 and 0.66 tex and bicomponent fiber of linear density 0.44 tex on the formation of the porous structure of the materials were studied. A model for prediction of the material porosity coefficient based on cloths of various compositions was developed as a function of temperature and processing rate. The material porosity coefficient for various roller temperatures decreased considerably for a processing rate of &lt;10 m/min for cloth with poly(ethylene terephthalate) fibers of linear density 0.33 tex. The material porosity coefficient of cloth based on fibers of linear density 0.66 tex was practically independent of the thermomechanical processing regimes.</p>

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Effect of Composition of Nonwoven Needlepunch Cloth on Porosity of Processed Material

  • 期刊论文

  • 发表日期：

    2025年1月1日

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  • N. I. Godin,
  • A. V. Dedov,
  • A. A. Stepashkin,
  • V. G. Nazarov

摘要

The effects of thermomechanical processing regimes of nonwoven needlepunch cloths based on poly(ethylene terephthalate) fibers of linear density 0.33 and 0.66 tex and bicomponent fiber of linear density 0.44 tex on the formation of the porous structure of the materials were studied. A model for prediction of the material porosity coefficient based on cloths of various compositions was developed as a function of temperature and processing rate. The material porosity coefficient for various roller temperatures decreased considerably for a processing rate of <10 m/min for cloth with poly(ethylene terephthalate) fibers of linear density 0.33 tex. The material porosity coefficient of cloth based on fibers of linear density 0.66 tex was practically independent of the thermomechanical processing regimes.