化工学报
化工學報
화공학보
CIESC Jorunal
2015年
11期
4676-4681
,共6页
纳米纤维膜%聚合物%P123%溶胀性能%机械性能
納米纖維膜%聚閤物%P123%溶脹性能%機械性能
납미섬유막%취합물%P123%용창성능%궤계성능
nanofibrous membranes%polymers%P123%swelling properties%mechanical properties
通过静电纺丝法制备了聚醚砜（ PES ）/聚环氧乙烷-聚环氧丙烷-聚环氧乙烷三嵌段共聚物（ P123， PEO20PPO70PEO20，Ma=5800）纳米纤维膜，考察了P123含量对纺丝液的黏度和表面张力的影响，以及对所制备的纳米纤维膜的结构和性能的影响。实验结果表明：P123含量从3%（质量）增至9%时，其纺丝液的黏度由300 mPa·s增至1000 mPa·s，表面张力在36.5～37.8 mN·m?1范围内；P123改性的PES纳米纤维直径约为360 nm，分布均匀，其表面也比较光滑，取向趋于一致；此外，该纳米纤维膜具有良好的机械性能和耐溶胀性能，较大的比表面积（＞39 m2·g?1），孔隙率，可用作催化剂载体。
通過靜電紡絲法製備瞭聚醚砜（ PES ）/聚環氧乙烷-聚環氧丙烷-聚環氧乙烷三嵌段共聚物（ P123， PEO20PPO70PEO20，Ma=5800）納米纖維膜，攷察瞭P123含量對紡絲液的黏度和錶麵張力的影響，以及對所製備的納米纖維膜的結構和性能的影響。實驗結果錶明：P123含量從3%（質量）增至9%時，其紡絲液的黏度由300 mPa·s增至1000 mPa·s，錶麵張力在36.5～37.8 mN·m?1範圍內；P123改性的PES納米纖維直徑約為360 nm，分佈均勻，其錶麵也比較光滑，取嚮趨于一緻；此外，該納米纖維膜具有良好的機械性能和耐溶脹性能，較大的比錶麵積（＞39 m2·g?1），孔隙率，可用作催化劑載體。
통과정전방사법제비료취미풍（ PES ）/취배양을완-취배양병완-취배양을완삼감단공취물（ P123， PEO20PPO70PEO20，Ma=5800）납미섬유막，고찰료P123함량대방사액적점도화표면장력적영향，이급대소제비적납미섬유막적결구화성능적영향。실험결과표명：P123함량종3%（질량）증지9%시，기방사액적점도유300 mPa·s증지1000 mPa·s，표면장력재36.5～37.8 mN·m?1범위내；P123개성적PES납미섬유직경약위360 nm，분포균균，기표면야비교광활，취향추우일치；차외，해납미섬유막구유량호적궤계성능화내용창성능，교대적비표면적（＞39 m2·g?1），공극솔，가용작최화제재체。
Polyether sulfone (PES)/polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer (P123, PEO20PPO70PEO20,Ma=5800) nanofibrous membrane was preparedvia electrospinning. The influence of P123 content on viscosity and surface tension of spinning solution was investigated as well as the effect on structures and properties of the formed nanofibrous membranes. The results showed that the viscosity and surface tension of spinning solution increased from 300 to 1000 mPa·s and 36.5 to 37.8 mN·m?1 with increasing P123 content from 3% to 9%, respectively. The diameter of the obtained PES/P123 nanofibers was about 360 nm. The formed PES/P123 nanofibrous membranes had a uniform distribution, smooth surface and good mechanical and swelling properties. They also had large specific surface area (>39 m2·g?1) and porosity, and could be used as catalyst support.
