静电纺丝对聚偏氟乙烯纤维铁电相含量的影响。

Effect of electrospinning on the ferroelectric phase content of polyvinylidene difluoride fibers.

作者信息

Andrew J S, Clarke D R

机构信息

Materials Department, College of Engineering, University of California, Santa Barbara, California 93106-5050, USA.

出版信息

Langmuir. 2008 Feb 5;24(3):670-2. doi: 10.1021/la7035407. Epub 2008 Jan 12.

DOI:10.1021/la7035407

PMID:18189433

Abstract

Polyvinylidene difluoride (PVDF) fibers were prepared by electrospinning from dimethyl formamide (DMF) solutions. The effects of the electrospinning processing conditions on the formation of the alpha and beta phases of PVDF were studied using infrared spectroscopy and differential scanning calorimetry. We have shown that beta-phase PVDF fibers can be electrospun directly from a dimethyl formamide (DMF) solution with a maximum fraction of beta phase, F(beta)max, of 0.75. The fraction of beta phase is found to be greater for smaller-diameter fibers and those spun at an increased voltage.

摘要

聚偏二氟乙烯（PVDF）纤维通过在二甲基甲酰胺（DMF）溶液中进行静电纺丝制备。使用红外光谱和差示扫描量热法研究了静电纺丝工艺条件对PVDF的α相和β相形成的影响。我们已经表明，β相PVDF纤维可以直接从二甲基甲酰胺（DMF）溶液中静电纺丝得到，其β相的最大含量F(β)max为0.75。发现直径较小的纤维以及在较高电压下纺制的纤维中β相的含量更高。