Thermal fabric with photothermal conversion function and preparation method of thermal fabric
A light-to-heat conversion and fabric technology, applied in the field of textile fabrics, can solve the problems of lack of thermal insulation effect, reduction, no heat storage function, etc., and achieve excellent thermal insulation effect and good air permeability.
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Embodiment 1
[0016] Using the in-situ emulsion polymerization method, using paraffin as the core material and polyurea as the wall material, phase-change microcapsules with a particle size of 5 μm were prepared, and a layer of polydopamine was coated on the phase-change microcapsules through the oxidative self-polymerization of dopamine to obtain Phase change microcapsules@PDA.
[0017] Wash and dry the fabric, mix the phase-change microcapsule @PDA solution, water-based polyurethane, stabilizer, and foaming agent evenly to obtain a finishing solution, use a foaming machine for high-power uniform foaming, and apply it evenly with a foam applicator To the surface of the fabric, the thickness of the coating is 0.05 mm. The finished fabric is pre-baked at 60°C for 5 minutes, and then baked at 80°C for 10 minutes to obtain the thermal fabric with light-to-heat conversion function of the present invention.
Embodiment 2-6
[0019] Phase-change microcapsules were prepared by using fatty acids, fatty alcohols, aliphatic hydrocarbons, polyethers, and polypolyols instead of paraffin in Example 1 as the core material, and other conditions were consistent with Example 1.
Embodiment 7
[0021] Using the in-situ emulsion polymerization method, using paraffin as the core material and melamine resin as the wall material, phase-change microcapsules with a particle size of 1 μm were prepared, and a layer of polydopamine was coated on the phase-change microcapsules through the oxidative self-polymerization of dopamine. Get Phase Change Microcapsules@PDA.
[0022] Wash and dry the fabric, mix the phase-change microcapsule @PDA solution, water-based polyurethane, stabilizer, and foaming agent evenly to obtain a finishing solution, use a foaming machine for high-power uniform foaming, and apply it evenly with a foam applicator To the surface of the fabric, the thickness of the coating is 0.1 mm. The finished fabric is pre-baked at 60°C for 5 minutes, and then baked at 80°C for 10 minutes to obtain the thermal fabric with light-to-heat conversion function of the present invention.
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