摘要
针对固体吸附除湿材料再生过程能耗较高的问题,以聚(3,4-乙烯二氧噻吩)-聚苯乙烯磺酸(PEDOT:PSS)为材料,通过浸涂法设计制备了直流再生除湿膜(PEDOT:PSS Film,记作PPF)。利用双探针法对不同含浸-干燥次数的PPF导电性进行测试,并研究了不同入口绝对湿度对PPF再生性能和除湿性能的影响。结果表明:经过4次含浸-干燥过程制备的薄膜(PPF-4)的吸湿量相比经过2次含浸-干燥过程制备的薄膜(PPF-2)从5.1 g/m^(2)增加到9.1 g/m^(2),边到边的电阻R_(s)由13.3Ω/sq降低到5.6Ω/sq。当再生电压为6 V时,PPF-4再生时的最高表面平均温度为42.3℃,再生120 s的再生率达84.6%;当再生电压为6 V、风速为0.23 m/s的条件下,进口绝对湿度每变化1 g/kg,PPF-4的平均再生速率约变化0.15 g/(kg·s),再生性能系数值为2.04~3.84。该研究为解决固体吸附除湿材料再生过程能耗较高的问题提供了思路。
To solve the problem of high energy consumption in the regeneration process of solid adsorption and dehumidification materials,the direct current regeneration and dehumidification film(PEDOT:PSS Film,abbreviated as PPF)was designed and prepared by dipping coating method with poly(3,4-vinyldioxthiophene)-polystyrene sulfonic acid(PEDOT:PSS)as material.The conductivity of PPF with different immersion and drying times was tested by double probe method,and the effect of absolute humidity at different inlets on the regeneration and dehumidification performance of PPF was studied.The results show that the moisture absorption of the film(PPF-4)prepared by four dipping and drying processes increased from 5.1 g/m^(2) to 9.1 g/m^(2) compared with the film(PPF-2)prepared by twice dipping and drying processes,and the edge-to-edge resistance R_(s) decreased from 13.3Ω/sq to 5.6Ω/sq.When the regeneration voltage was 6 V,the highest average surface temperature of PPF-4 regeneration was 42.3℃,and the regeneration rate of PPF-4 regeneration was 84.6% at a regeneration time of 120 s.When the regeneration voltage was 6 V and the wind speed was 0.23 m/s,the average regeneration rate of PPF-4 changed about 0.15 g/(kg·s)for every 1 g/kg change in the inlet absolute humidity,and the regeneration performance coefficient ranged from 2.04 to 3.84.This study provides a way to solve the problem of high energy consumption in the process of solid adsorption and dehumidification material regeneration.
作者
李兴宇
马景辉
柴建元
冉科呈
陶盛
LI Xingyu;MA Jinghui;CHAI Jianyuan;RAN Kecheng;TAO Sheng(School of Civil Engineering and Architecture,Zhejiang Sci-Tech University,Hangzhou 310018,China)
出处
《浙江理工大学学报(自然科学版)》
2025年第3期352-360,共9页
Journal of Zhejiang Sci-Tech University(Natural Sciences)
基金
国家自然科学基金青年科学基金项目(52206029)。
关键词
电加热再生
除湿膜
固体吸附除湿
再生性能系数
聚(3
4-乙烯二氧噻吩)-聚苯乙烯磺酸
electric heating regeneration
dehumidifying film
solid adsorption and dehumidification
coefficient of regeneration performance
poly(3,4-ethylenedioxythiophene)-polystyrene sulfonic acid
