PLA/PEG@SDS超细纤维水蒸发器的复合结构设计及其液体传输行为  

Designing of composite structure and liquid transmission behavior of the polylactic acid/polyethylene glycol@sodium dodecyl sulfate microfibrous water evaporator

作　　者：赵珂 张恒 翟倩 甄琪 苏天阳 崔景强 ZHAO Ke;ZHANG Heng;ZHAI Qian;ZHEN Qi;SU Tianyang;CUI Jingqiang(College of Intelligent Textile and Fabric Electronics,Zhongyuan University of Technology,Zhengzhou 451191,Henan,China;College of Fashion Technology,Zhongyuan University of Technology,Zhengzhou 451191,Henan,China;Henan Tuoren Medical Device Research Institute Co.,Ltd.,Xinxiang 453400,Henan,China)

机构地区：[1]中原工学院智能纺织与织物电子学院,河南郑州451191 [2]中原工学院智能服饰与服装学院,河南郑州451191 [3]河南驼人医疗器械研究院有限公司,河南新乡453400

出　　处：《化工进展》2025年第2期1014-1024,共11页Chemical Industry and Engineering Progress

基　　金：河南省高校科技创新人才支持计划(24HASTIT011);河南省重大科技专项(231100320200);中原工学院高校科技创新人才支持计划(K2023YXRC01);中原工学院学科骨干教师支持计划(GG202422)。

摘　　要：为增强纤维基水蒸发器的液体传输能力,利用熔喷-热熔复合工艺,设计并制备了一种三层复合结构的聚乳酸/聚乙二醇@十二烷基硫酸钠超细纤维材料,通过扫描电子显微镜、液体接触角测量仪和液态水分管理测试仪对其形貌结构和液体传输行为进行表征。结果表明,得益于样品在厚度方向上纤维直径和水润湿能力的规则分布,单向水分传递指数增加到了533.19%、吸液速率增大到了2.37mg/s,从而在613.52W/m^(2)光强下获得了1.27kg/(m^(2)·h)的水蒸发速率。同时,样品表现出优异的可水洗性,利于重复利用,且纵横向拉伸断裂强力分别为67.37N和35.39N,以期为可降解海水蒸发器液体传输能力的提高提供新思路。To enhance the liquid transmission capacity of fibrous water evaporator,a trilayer structured polylactic acid/polyethylene glycol@sodium dodecyl sulfate microfiber fabric was designed and prepared using a melt blown-thermal bonding process.The morphology and liquid transmission behavior were assessed through scanning electron microscope,liquid contact angle tester and liquid water management tester.Results indicated that benefiting from the regular distribution of fiber diameter and water wettability in the thickness direction,the prepared samples possessed a large water evaporation rate of 1.27kg/(m^(2)·h)under the solar intensity of 613.52W/m^(2)which resulted from the one-way transport index increased to 533.19%and the liquid absorption rate increased to 2.37mg/s.Besides,the sample exhibited remarkable washability for multiple reuses along with longitudinal and transverse tensile fracture strengths of 67.37N and 35.39N,respectively.This work provided a novel approach to improve the liquid transfer capacity of degradable seawater evaporators.

关 键 词：水蒸发器 复合材料 液体单向传输 结构设计 润湿梯度效应 差动毛细效应 超细纤维 

分 类 号：TK51[动力工程及工程热物理—热能工程]