Preparation and Properties of Nonwoven Photothermal Materials for Solar Water Evaporation
Yang Leihang
Huang Chen
Ke Qinfei
Liu Honggang
Li Juan
Abstract：A hot air through bonded nonwoven material was prepared using hydrophilic polypro-pylene/polyethylene(PP/PE)bicomponent fibers,processed through carding and hot air bonding.Multi-walled carbon nanotubes(MWCNTs),polyvinylidene fluoride(PVDF),and thermoplastic pol-yurethane(TPU)were combined and firmly adhered to the fiber surface,forming a porous photother-mal 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 sun-light conditions.
Keywords：PP/PE fibermulti-wall carbon nanotubesjanusnonwovensolar water evaporation
Publication Date：2025-02-20
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 7-12 )