Preparation method and application of bio-based nylon 56 nanofiber membrane

• Main Authors: GUO YAFEI, LI MAOHUI, LIANG GAOYONG, HAO XINMIN, QIAO RONGRONG, YAN JINLONG
• Format: Patent
• Language: Chinese; English
• Published: 09.10.2020
• Subjects: BRAIDING; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COTTON-WOOL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; KNITTING; LACE-MAKING; LAUNDERING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; NANOTECHNOLOGY; NON-WOVEN FABRICS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TEXTILES; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS; TRIMMINGS; WADDING

The invention discloses a preparation method and application of a bio-based nylon 56 nanofiber membrane. The method comprises the following steps: by taking bio-based nylon slices as raw materials, preparing the bio-based nylon 56 nanofiber membrane with the fiber diameter of less than 150nm and the tensile strength of 7-20MPa through electrostatic spinning, and modifying the nanofiber membrane byphysical and chemical methods, thereby obtaining an organic-inorganic composite nanofiber membrane of which the fiber surface is firmly covered by multi-layer inorganic nanocrystals with the fiber diameter of less than 350nm and the tensile strength of 7-25MPa. The nanofiber membrane prepared by the method disclosed by the invention has high-efficiency adsorption capacity and excellent mechanicalproperty, stability and durability and is easy to recycle. The nanofiber membrane prepared by the method disclosed by the invention can be applied to the fields of protective clothing, protective articles, filtering materials