Preparation of Cellulose Acetate Butyrate Porous Micro/Nanofibrous Membranes and Their Properties  

作　　者：张晓晓 苏亚洲 石凌翔 王玉洁 黄长芬 王新厚 孙晓霞 ZHANG Xiaoxiao;SU Yazhou;SHI Lingxiang;WANG Yujie;HUANG Changfen;WANG Xinhou;SUN Xiaoxia(College of Textiles,Donghua University,Shanghai 201620,China;College of Mechanical Engineering,Donghua University,Shanghai 201620,China)

机构地区：[1]College of Textiles,Donghua University,Shanghai 201620,China [2]College of Mechanical Engineering,Donghua University,Shanghai 201620,China

出　　处：《Journal of Donghua University(English Edition)》2023年第5期461-466,共6页东华大学学报（英文版）

基　　金：National Natural Science Foundation of China(No.52203056)。

摘　　要：Cellulose acetate butyrate(CAB)is a cellulose ester that is commonly used in applications such as coatings and leather brighteners.However,its appearance in a fibrous form is rarely reported.CAB porous micro/nanofibrous membranes with a large number of nanopores on the fiber surface were successfully prepared by electrospinning with dichloromethane(DCM)/acetone(AC)as the mixed solvent.Apparent morphology,porosity,moisture permeability,air permeability,static water contact angles,and thermal conductivity of the fibrous membranes were investigated at different spinning voltages.The results showed that with the increase of the spinning voltage,the average fiber diameter of the CAB porous micro/nanofibrous membranes gradually decreased and the fiber diameter distribution was more uniform.When the spinning voltage reached 40 kV,the porosity reached 91.38%,the moisture permeability was up to 7430 g/(m^(2)·d),the air permeability was up to 36.289 mm/s,the static water contact angle was up to 145.0°,while the thermal conductivity of the fibrous membranes reached 0.030 W/(m·K).The material can be applied as thermal-insulation,waterproof and moisture-permeable membranes.

关 键 词：ELECTROSPINNING cellulose acetate butyrate(CAB) porous material waterproof and permeable membrane low thermal conductivity 

分 类 号：TS171[轻工技术与工程—纺织材料与纺织品设计]