Preparation method of styrene-butadiene-styrene-block-copolymer and polyvinylidene fluoride blended nanofiber membrane

• Main Authors: BAI BING, DU PINGFAN, DONG LIKA, MA XIANGYU, WANG JIEQIONG, ZOU JIACHENG, QIU LINLIN, JIN ZHENGFEI, MEI DEQIANG
• Format: Patent
• Language: Chinese; English
• Published: 13.11.2020
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; BRAIDING; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; COTTON-WOOL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; KNITTING; LACE-MAKING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; NON-WOVEN FABRICS; SPINNING; TEXTILES; TRIMMINGS; WADDING

The invention discloses a preparation method of a styrene-butadiene-styrene-block-copolymer and polyvinylidene fluoride blended nanofiber membrane. According to the method, with two kinds of organic synthetic polymer as a spinning precursor, an electrospinning technology is adopted to prepare a nanofiber membrane, a fiber diameter of the nanofiber membrane can reach the nanoscale, fibers with irregular orientations are stacked to form a three-dimensional network structure, abundant cavities and pores make the fiber membrane have a very high specific surface area, the passage or absorption of gas and liquid can be facilitated, and the nanofiber membrane can be used for absorption and filtration and other aspects. The nanofiber membrane material has the characteristics of low surface energyand superhydrophobicity, and can be applied to the self-cleaning field and the like. 本发明公开了一种苯乙烯-丁二烯-苯乙烯嵌段共聚物和聚偏氟乙烯混纺纳米纤维膜的制备方法。本发明以两种有机合成高聚物为纺丝前驱体，采用静电纺丝技术制备纳米纤维膜，其纤维直径可达纳米级，不规则取向的纤维堆积形成三维立体网状结构，丰富的空腔和孔隙使纤维膜具有极高的比表面积，有利于气体、液