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Fabric Coated with Shape Memory Polyurethane and Its Properties.

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This summary is machine-generated.

This study developed segmented shape memory polyurethane (SMPU) coatings for textiles. These SMPU-coated fabrics offer water resistance and adjustable water vapor transmission for improved thermo-physiological comfort.

Keywords:
coatingcotton fabricshape memory polymerwater resistancewater vapor transmission

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Area of Science:

  • Materials Science
  • Textile Engineering
  • Polymer Chemistry

Background:

  • Textile materials require functional properties like water resistance and water vapor transmission (WVT) for wearer comfort.
  • Perspiration must evaporate and transmit to the environment, especially in extreme weather conditions requiring wind and rain protection.
  • Shape memory polyurethane (SMPU) is a functional textile material with potential for these applications.

Purpose of the Study:

  • To synthesize and evaluate segmented shape memory polyurethanes (SMPUs) for textile coatings.
  • To determine if SMPU-coated cotton fabrics provide tunable thermal insulation and permeability.
  • To achieve water-resistant textiles with good water vapor transmitting ability.

Main Methods:

  • Synthesis of a series of segmented shape memory polyurethanes (SMPUs).
  • Coating cotton fabrics with the synthesized SMPUs.
  • Testing the coated fabrics for water resistance and water vapor transmission (WVT) under varying temperature and relative humidity (RH) conditions.

Main Results:

  • The synthesized SMPUs were successfully applied as coatings to cotton fabrics.
  • The SMPU-coated fabrics demonstrated water-resistance.
  • The permeability of the coated fabrics varied with temperature and relative humidity, indicating tunable properties.

Conclusions:

  • Segmented shape memory polyurethane is a viable material for creating functional textile coatings.
  • SMPU-coated textiles can offer a balance of water resistance and water vapor transmission.
  • These materials have potential for enhancing thermo-physiological comfort in performance apparel.