Title:
HIGH-STRENGTH FLAME-RETARDANT MXENE/PHOSPHORYLATED CELLULOSE FIBRIL COMPOSITE FILM AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/060807
Kind Code:
A1
Abstract:
Disclosed are a high-strength flame-retardant MXene/phosphorylated cellulose fibril composite film and a preparation method therefor, belonging to the field of high polymer materials. Phosphorylated cellulose nanofibrils are uniformly dispersed in an aqueous solution, chitosan and MXene are added, and the mixture is mixed uniformly and dried to obtain a composite film. The present invention utilizes MXene and introduces chitosan to achieve the enhancement of flame retardance and thermal stability of the phosphorylated cellulose nanofibrils. Meanwhile, the interaction between MXene and the phosphorylated cellulose fibrils can be enhanced, and the mechanical properties of the composite film can be improved in combination with the nano-enhancement effect of MXene. The phosphorylated cellulose fibril film synergistically modified by MXene and chitosan and prepared in the present invention not only has excellent flame retardance, but also has greatly improved mechanical properties. The composite film can be used as a flame-retardant coating in the future to effectively protect combustible substrates/devices in a burst condition (flame or high temperature), thereby expanding the application field of the corresponding materials, prolonging the service life of the corresponding materials, and being suitable for market popularization and application.
Inventors:
LI SHINENG (CN)
ZHOU CHENG (CN)
XIA YU (CN)
ZHOU CHENG (CN)
XIA YU (CN)
Application Number:
PCT/CN2023/107107
Publication Date:
March 28, 2024
Filing Date:
July 13, 2023
Export Citation:
Assignee:
SUZHOU JUFENG ELECTRICAL INSULATION SYSTEM CO LTD (CN)
International Classes:
C08L1/02; C08J5/18; C08K3/14; C08L5/08; C09D5/18; C09D101/02
Foreign References:
| CN115322443A | 2022-11-11 | |||
| CN114958094A | 2022-08-30 | |||
| CN113718362A | 2021-11-30 | |||
| CN114621637A | 2022-06-14 | |||
| US20190344222A1 | 2019-11-14 |
Attorney, Agent or Firm:
SUZHOU JINHE INTELLECTUAL PROPERTY AGENCY (SPECIAL GENERAL PARTNERSHIP) (CN)
Download PDF:
Previous Patent: TIN DIOXIDE FILM, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Next Patent: DRIVING DEVICE AND ROBOT
Next Patent: DRIVING DEVICE AND ROBOT