【摘要】 文章采用具有皮芯结构的亲水性聚丙烯/聚乙烯（PP/PE）双组份纤维为原料，通过梳理成网和热风粘合工艺制备热风非织造材料基体。采用水滴模板法，将多壁碳纳米管（MWCNTs）、聚偏二氟乙烯（PVDF）和热塑性聚氨酯（TPU）混合。牢固黏附于纤维表面，形成多孔结构的光热转化层膜，并与亲水性非织造基体复合，构建出具有Janus结构的非织造光热材料。测试结果表明：该材料在250 nm～2500 nm范围内的光吸收率超过90%,在模拟太阳光环境下可持续稳定实现1.23kg·m^-2·h^-1的蒸发速率和85.2%的蒸发效率。更多还原

【Abstract】 A hot air through bonded nonwoven material was prepared using hydrophilic polypropylene/polyethylene（PP/PE） bicomponent fibers, processed through carding and hot air bonding. Multi-walled carbon nanotubes（MWCNTs）, polyvinylidene fluoride（PVDF）, and thermoplastic polyurethane（TPU） were combined and firmly adhered to the fiber surface, forming a porous photothermal conversion layer, and composited with the hydrophilic non-woven substrate to become Janus non-woven photothermal material. The test results showed that the material exhibited a light absorption rate exceeding 90% withen the 250 nm～2 500 nm range and could consistently and stably achieve an evaporation rate of 1.23 kg·m^-2·h^-1 and an evaporation efficiency of 85.2 % under simulated sunlight conditions.更多还原