Preparation and Performance Study of Polyester Photothermal Conversion Fiber
Using melt blending extrusion technology,efficient photothermal conversion powder cesium tungsten bronze nanoparticles(CsxWO3 NPs)were uniformly dispersed into polyester chips to prepare photothermal conversion polyester masterbatch.Blend photothermic conversion polyester masterbatch with conventional polyester chips in a specific ratio,followed by melting and spinning processes.0.5％CsxWO3 high-efficiency photothermal conversion polyester fibers with good dye-ability were prepared.The microstructure,thermal stability,mechanical properties and heating performance of the fiber were analyzed.The results showed that the addition of CsxWO3 NPs did not have a significant effect on the thermal stability of the fibers,but had a certain improvement in the mechanical properties of the fibers.Under the irradiation of 1 kW/m2 solar light intensity,the maximum temperature of the photothermal conversion polyester fiber reached 104.6℃,which was about 58.0℃higher than that of conventional polyester fibers.
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