Title:
LYOCELL FIBER MODIFIED BY COMPOUND FLAME RETARDANT AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/077915
Kind Code:
A1
Abstract:
A Lyocell fiber modified by a compound flame retardant and a preparation method therefor. The Lyocell fiber modified by the compound flame retardant uses a cellulose fiber as a matrix material, a flame retardant and a synergist are uniformly dispersed inside the cellulose fiber, the mass of the flame retardant accounts for 40-80% of the mass of cellulose in the fiber, and the mass of the synergist accounts for 1-20% of the mass of the cellulose in the fiber; and the particle sizes of the flame retardant and the synergist satisfy that the D90/φfiber is less than 0.1. The flame retardant is a nitrogen-based flame retardant; and the synergist is selected from one or more of an organic phosphorus compound, a metal oxide, a boron-containing compound and a non-water-soluble silicate. The Lyocell fiber is modified by using the compound flame retardant, and by controlling the particle size, the smoothness of a fiber spinning process can be guaranteed, and the compound flame retardant can be uniformly dispersed inside the fiber, so that the flame retardance of the fiber is obviously improved, and the fiber is resistant to water washing and has excellent flame retardant durability, being low cost and having zero emissions, and being green and environmentally friendly.
Inventors:
ZHAO QINGBO (CN)
CHENG CHUNZU (CN)
GAO MIN (CN)
WANG SHULI (CN)
LI TING (CN)
ZHANG CHENXI (CN)
XU ZHONGKAI (CN)
CHENG MIN (CN)
CHENG CHUNZU (CN)
GAO MIN (CN)
WANG SHULI (CN)
LI TING (CN)
ZHANG CHENXI (CN)
XU ZHONGKAI (CN)
CHENG MIN (CN)
Application Number:
PCT/CN2023/089163
Publication Date:
April 18, 2024
Filing Date:
April 19, 2023
Export Citation:
Assignee:
CHINA TEXTILE ACAD (CN)
International Classes:
D01F1/07; D01F2/00
Attorney, Agent or Firm:
BEIJING YUANZHONG INTELLECTUAL PROPERTY AGENT LTD. (CN)
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