摘要
采用静电纺丝法制备聚丙烯腈纳米纤维膜,经不同温度预氧化和碳化后得到碳纳米纤维膜（CNFM）,通过FTIR、TG、XRD、SEM、RAMAM等表征手段探究了预氧化和碳化过程中纤维膜结构的变化,并考察了不同阶段纤维膜的表面浸润性。研究表明：PAN纤维膜预氧化温度选定在270~290℃范围较为合适;随碳化温度的升高,碳纳米纤维（CNFs）的类石墨层状结构有序化提高,石墨层间距减小;碳化膜的最大接触角可达158.3°±1.0°,表面呈现超疏水性。
Polyacrylonitrile nanofibers membrane was preprared by electrospinning,which was used to obtain CNFM by preoxidation and carbonization at different temperatures.The variation of fibers membrane in structure was characterized by FTIR,TG,XRD,SEM,RAMAM and its wettability in different stages was also tracked.The results indicated that the optimal temperature was within the range from 270 ℃to 290 ℃in the preoxidation process of PAN fibers membrane.The ordering of graphite layer structure in CNFs increased and the space of graphite layer decreased with the increasing carbonization temperature.The contact angle of carbonized membrane was high to158.3°±1.0°,revealing that the carbonized membrane has a good hydrophobicity on the surface.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2015年第24期49-53,58,共6页
Materials Reports
关键词
静电纺丝
碳纳米纤维
预氧化
碳化
浸润性
electrospinning
CNFs
preoxidation
carbonization
wettability
