Title:
METHOD FOR PREPARING ANTI-SMOG NONWOVEN FABRIC
Document Type and Number:
WIPO Patent Application WO/2018/227587
Kind Code:
A1
Abstract:
Provided is a method for preparing an anti-smog nonwoven fabric, which relates to the technical field of nonwoven fabric preparation. The method comprises: selecting a zwitterionic polyurethane containing a betaine group as a raw material; configuring the raw material into a first solution and a second solution having mass fractions of 15-35% and 3-10%, respectively; using electrospinning technology to spin the first solution so as to prepare a nonwoven fabric scaffold having a diameter of 1.0-2.0 μm; spinning the second solution on the nonwoven fabric scaffold to obtain a nanofiber of 200 nm-500 nm, so that the nonwoven fabric scaffold and the nanofiber are interlaced to form an anti-smog nonwoven fabric having a large number of porous structures, the ratio between the amount of nanofiber to the amount of fiber that serves as the nonwoven fabric scaffold being 19:1-19. Since the fiber that is prepared by spinning the first solution is thick, the mechanical properties of the nonwoven fabric may be improved. In addition, the betaine group has a good antibacterial effect, and may prevent the spread of bacteria in smog.
Inventors:
CHEN SHAOJUN (CN)
ZHUO HAITAO (CN)
LI KEYAO (CN)
ZHUO HAITAO (CN)
LI KEYAO (CN)
Application Number:
PCT/CN2017/088726
Publication Date:
December 20, 2018
Filing Date:
June 16, 2017
Export Citation:
Assignee:
UNIV SHENZHEN (CN)
International Classes:
D04H1/728; D04H1/4358; D04H1/4374
Foreign References:
| CN105644085A | 2016-06-08 | |||
| CN104403086A | 2015-03-11 | |||
| CN105536075A | 2016-05-04 | |||
| CN103657252A | 2014-03-26 | |||
| CN102016150A | 2011-04-13 |
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
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