Title:
PERFLUORINATED POLYETHER BLOCK-MODIFIED POLYCAPROLACTONE, MICROSPHERE THIN FILM THEREOF AND PREPARED HYDROPHOBIC FABRIC
Document Type and Number:
WIPO Patent Application WO/2023/155383
Kind Code:
A1
Abstract:
A perfluorinated polyether block-modified polycaprolactone, a microsphere thin film thereof and prepared hydrophobic fabric. Perfluorinated polyether carboxylic acid (PFPE-COOH) as a modifier is activated by N,N'-dicyclohexylcarbodiimide (DCC) and then subjected to an esterification reaction with PCL-OH to introduce a perfluorinated polyether block to an end of the polycaprolactone macromolecular chain and thus to obtain a hydrophobic block copolymer PCL-b-PFPE. The structure of the modified product is characterized by means of FTIR, XPS and EDS. Solutions of the modified polymer with different concentrations are prepared, and by means of the electrostatic spraying technique, are made into microspheres. The electrostatic spraying method is used to form, by means of spraying, a microsphere coating on polyester fabric. WCA testing shows that the polyester fabric treated with the microsphere coating at different humidity levels has a contact angle of 56.3±2.6°. Comparison with the original polyester fabric's 81.5 mm/s air permeability shows that a large number of openings present in the surface of the microspheres of the microsphere coating help increase the air permeability of the fabric; therefore, the effect of the coating treatment on the air permeability of the polyester fabric is small.
Inventors:
LI ZHANXIONG (CN)
HE DEWEI (CN)
WANG XUETING (CN)
HE DEWEI (CN)
WANG XUETING (CN)
Application Number:
PCT/CN2022/109314
Publication Date:
August 24, 2023
Filing Date:
July 31, 2022
Export Citation:
Assignee:
UNIV SOOCHOW (CN)
International Classes:
C08G81/00; C08J3/12; C08L87/00; D06M15/37; D06M15/507; D06M15/53; D06M101/32
Domestic Patent References:
| WO2021043717A1 | 2021-03-11 |
Foreign References:
| CN114479089A | 2022-05-13 | |||
| CN112695533A | 2021-04-23 | |||
| CN105646177A | 2016-06-08 | |||
| US7695795B1 | 2010-04-13 | |||
| CN108484922A | 2018-09-04 | |||
| US20200207921A1 | 2020-07-02 | |||
| CN108409993A | 2018-08-17 | |||
| CN108611861A | 2018-10-02 |
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT AND TRADEMARK AGENCY, LTD (CN)
Download PDF: