Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of porous nanofiber membrane

A technology of nanofiber membrane and nano-microspheres, which is applied in heating/cooling fabrics, rayon of inorganic raw materials, non-woven fabrics, etc., can solve the problems of difficulty in controlling the size and structure of pores on titanium dioxide nanofiber membranes.

Active Publication Date: 2012-06-20
苏大新材料发展(苏州)有限公司
View PDF4 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the diameter and structure of the pores

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of porous nanofiber membrane
  • Preparation method of porous nanofiber membrane
  • Preparation method of porous nanofiber membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The purpose of the present invention is to provide a method for preparing a porous nanofiber membrane, and the diameter and structure of pores on the obtained porous nanofiber membrane can be controlled.

[0025] The technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] The porous nanofiber membrane in the present invention can be obtained through the following experiments, preferably, the porous titanium dioxide nanofiber membrane is taken as an example. However, in other embodiments, the preparation method of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of a porous nanofiber membrane, which includes the following steps: a, mixing precursor solution and PS (poly styrene) nano microspheres to obtain electrostatic spinning solution; b, conducting electrostatic spinning process to the electrostatic spinning solution obtained in step a to obtain a preliminary nanofiber membrane; c, calcining the preliminary nanofiber membrane obtained in step b in a furnace to remove the PS nano microspheres so as to obtain a porous nanofiber membrane. According to the invention, by adding a certain amount of PS nano microspheres in the preparation process, the size and the diameter of the holes of the porous nanofiber membrane can be effectively controlled and the holes can be made in ordered arrangement.

Description

technical field [0001] The invention relates to a method for preparing a porous nanofiber membrane, belonging to the technical field of nanofiber membrane materials. Background technique [0002] In the past ten years, facing severe environmental pollution and energy crisis, people are constantly looking for clean new energy to replace the increasingly depleted petrochemical energy. In 1991, a professor at the Lausanne Institute of Technology in Switzerland reported the dye-sensitization of nanocrystalline porous titanium dioxide thin film solar cells with bipyridyl ruthenium (II) complexes. Due to its relatively low production cost and simple preparation process, it has attracted much attention. people's great attention. Porous titania nanofibrous membranes are an effective way to improve the efficiency of dye-sensitized solar cells. At present, the photoelectric conversion efficiency of such dye-sensitized solar cells has exceeded 11%. [0003] Dye-sensitized solar cell...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): D06C7/00D04H1/435D04H1/4282D04H1/728D01F9/08
Inventor 张克勤祁宁
Owner 苏大新材料发展(苏州)有限公司