非对称结构纤维膜的制备及其热调控性能  

Preparation and thermal management properties of asymmetric structured fibrous membranes

作　　者：田博阳 王向泽 杨湙雯 吴晶[1,2] TIAN Boyang;WANG Xiangze;YANG Yiwen;WU Jing(Beijing Engineering Research Center of Textile Nanofiber,Beijing Institute of Fashion Technology,Beijing 100029,China;Beijing Key Laboratory of Clothing Materials R&D and Assessment,Beijing Institute of Fashion Technology,Beijing 100029,China)

机构地区：[1]北京服装学院北京市纺织纳米纤维工程技术研究中心,北京100029 [2]北京服装学院服装材料研究开发与评价北京市重点实验室,北京100029

出　　处：《纺织学报》2024年第2期11-20,共10页Journal of Textile Research

基　　金：北京市教委一般项目(KM202310012001);北京服装学院高水平科研项目培育基金项目(PY23-011)。

摘　　要：为获得在寒冷环境下可通过零能耗的方式使人体保持合适体温的织物,将浸渍法和静电纺丝法相结合,以二维过渡金属碳氮化合物(MXene)、聚多巴胺(PDA)、聚氨基甲酸酯(PU)为原料,棉织物(Fc)为基底,制备了二维过渡金属碳氮化合物黏附聚多巴胺-棉织物(MXene/PDA-C)为亲水层,PU纤维膜为疏水层的非对称结构(PU/MXene/PDA-C)纤维膜复合材料。借助扫描电子显微镜、液态水分管理仪、接触角测试仪、傅里叶红外光谱仪等对所制备的PU/MXene/PDA-C进行表征测试。结果表明:当疏水层静电纺丝时间为15 min时,非对称结构纤维复合膜的单向液体运输能力最好,具有优异的水蒸气透过率,可将人体皮肤的汗液快速导出;此外,MXene赋予非对称结构纤维复合膜出色的光热转化性能,在模拟太阳光照射下,与普通棉织物相比,能够升温约30℃。Objective Heating methods such as air conditioning are most popularly used for warmth keeping in cold environments,but such methods would raise temperature to the entire space,causing unnecessary energy waste and accelerating the greenhouse effect.Therefore,we hope to heat up a small space around the human body to make people feel comfortable in the cold space.In addition,when the two sides of the membrane show obvious differences in infiltration,that is when the membrane has an asymmetric structure,it can be unidirectional transport liquid,which helps to timely discharge the sweat generated when the human body is heated,and keep the human body dry and comfortable.With this purpose,in-situ polymerization and electrospinning methods were used to prepare PU/MXene-C fibrous membranes with asymmetric structure.Method Using two dimensional transition metal nitrogen compounds(MXene),polydopamine(PDA)and polyurethane(PU)as raw materials,cotton fabric(Fc)as substrate,the PDA-adhesive MXene(MXene/PDA-C)as hydrophilic layer and PU fibrous membrane as hydrophobic layer were prepared by in-situ polymerization and electrospinning.The asymmetric structure of polyurethane/cotton fabric based polydopamine adhesion two-dimensional transition metal carbon nitrogen compound(PU/MXene/PDA-C)fiber film was obtained.The prepared PU/MXene/PDA-C was characterized by scanning electron microscopy,moisture management tester,contact angle tester and Fourier infrared spectrometer.Results MXene was successfully adhered to cotton using PDA through in-situ polymerization,ultimately obtaining MXene/PDA-C.The content of Ti element on the surface of MXene/PDA-C was analyzed by EDS spectrum,which further proved the success of the preparation.After exploring the conditions of electrospinning PU fibers,PU fibrous membrane was electrospun on MXene/PDA-C with a mass fraction of 12.5% spinning solution,and the fiber diameter obtained by four different electrospinning nozzles was measured,and it was found that the diameter of the fiber increases with the

关 键 词：静电纺丝 纤维膜 非对称结构 热调控 单向液体运输 功能棉织物 聚氨基甲酸酯 

分 类 号：TB324[一般工业技术—材料科学与工程]