Title:
ARAMID NANO-AEROGEL FIBER HYDROPHOBICALLY MODIFIED IN SITU, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/010876
Kind Code:
A1
Abstract:
An aramid nano-aerogel fiber hydrophobically modified in situ, and a preparation method therefor and the use thereof. The preparation method comprises: providing an aramid nanometer spinning solution; preparing a hydrophobically modified aramid nanogel fiber by means of a spinning technology, wherein a coagulating bath used in the spinning technology comprises a first organic solvent and a halogenation reagent, and the halogenation reagent comprises monobromoalkane, monochloroalkane, dibromoalkane, dichloroalkane, trichloroalkane, etc.; and then carrying out a drying treatment to obtain the aramid nano-aerogel fiber hydrophobically modified in situ. Prepared according to the solution, the aramid nano-aerogel fiber hydrophobically modified in situ has a unique three-dimensional porous network structure, a lower heat conductivity, a higher porosity, a higher tensile strength, a higher elongation at break and certain spinnability and structural stability, and can be applied to the field of textiles. A fabric woven from the hydrophobic fiber has a self-cleaning ability. A hydrophobic aramid nano-aerogel fiber flocculus can also be fabricated, and exhibits a good hydrophobic performance.
Inventors:
ZHANG XUETONG (CN)
BAO YAQIAN (CN)
LIU ZENGWEI (CN)
BAO YAQIAN (CN)
LIU ZENGWEI (CN)
Application Number:
PCT/CN2022/085067
Publication Date:
February 09, 2023
Filing Date:
April 02, 2022
Export Citation:
Assignee:
SUZHOU INST NANO TECH & NANO BIONICS SINANO CAS (CN)
International Classes:
D06M13/08; D06M10/00; D06M11/46; D06M13/144; D06M23/00
Foreign References:
| CN113463375A | 2021-10-01 | |||
| CN110468461A | 2019-11-19 | |||
| CN110982114A | 2020-04-10 | |||
| US20190085139A1 | 2019-03-21 | |||
| CN110257946A | 2019-09-20 | |||
| US20190062517A1 | 2019-02-28 | |||
| CN110982111A | 2020-04-10 |
Attorney, Agent or Firm:
NANJING LI&FENG INTELLECTUAL PROPERTY AGENCY (SPECIAL GENERAL PARTNERSHIP) (CN)
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