Flame-retardant and antibacterial PET fiber and slice spinning preparation method thereof

A fiber and slicing technology, which is used in the manufacture of fire-retardant and flame-retardant filaments, melt spinning, chemical characteristics of fibers, etc., can solve problems such as application limitations and complex production processes, and achieve the effect of reducing costs and adding small amounts.

Active Publication Date: 2019-01-15
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of complex production process and relatively limited application in the above-mentioned prior art, and to provide a fiber with flame retardant and antibacterial properties, simple production process and good mechanical properties and its preparation method

Method used

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  • Flame-retardant and antibacterial PET fiber and slice spinning preparation method thereof
  • Flame-retardant and antibacterial PET fiber and slice spinning preparation method thereof
  • Flame-retardant and antibacterial PET fiber and slice spinning preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The slice spinning preparation method of flame-retardant antibacterial PET fiber, concrete steps are as follows:

[0057] (1) prepare metal-modified hyperbranched polymer;

[0058] (1.1) Using A 2 +B 3 The synthetic method prepares the hyperbranched polymer that terminal group contains carboxyl group: Wherein A 2 Is pyrazine-2,3-dicarboxylic acid; B 3 It is 1,1,1-tri(hydroxymethyl)propane; the prepared hyperbranched polymer molecule containing carboxyl groups contains ester groups, and the number of carboxyl groups accounts for 25% of the total amount of end groups, and the degree of branching is 60%, the weight average molecular weight is 2000g / mol;

[0059] (1.2) The end group containing carboxyl hyperbranched polymer is dissolved in chloroform to obtain a concentration of 0.7mol / L end group containing hyperbranched polymer solution, cobalt acetate is dissolved in deionized water to obtain a concentration of 0.8mol / L The metal ion solution of L;

[0060] (1.3) U...

Embodiment 2

[0069] The slice spinning preparation method of flame-retardant antibacterial PET fiber, concrete steps are as follows:

[0070] (1) prepare metal-modified hyperbranched polymer;

[0071](1.1) Using A 2 +B 3 The synthetic method prepares the hyperbranched polymer that terminal group contains carboxyl group: Wherein A 2 For: 2-carboxyethylphenylphosphinic acid; B 3 It is: three (2-carboxyethyl) isocyanurate; the prepared hyperbranched polymer molecule containing carboxyl groups contains ester groups, and the number of carboxyl groups accounts for 27% of the total amount of end groups. is 53%, and the weight average molecular weight is 43000g / mol;

[0072] (1.2) the end group containing carboxyl hyperbranched polymer is dissolved in acetone to obtain a concentration of 0.85mol / L end group containing carboxyl hyperbranched polymer solution, nickel acetate is dissolved in deionized water to obtain a concentration of 0.95mol / L The metal ion solution of L;

[0073] (1.3) Under...

Embodiment 3

[0082] The slice spinning preparation method of flame-retardant antibacterial PET fiber, concrete steps are as follows:

[0083] (1) prepare metal-modified hyperbranched polymer;

[0084] (1.1) Using A 2 +B 3 The synthetic method prepares the hyperbranched polymer that terminal group contains carboxyl group: Wherein A 2 For: 5-tert-butyl-1,3-benzenedicarboxylic acid; B 3 It is: 2,4,5-trihydroxybutyrophenone; the prepared hyperbranched polymer molecule containing carboxyl groups contains ester groups, the number of carboxyl groups accounts for 25% of the total number of end groups, and the degree of branching is 30%. , the weight average molecular weight is 15000g / mol;

[0085] (1.2) the hyperbranched polymer solution containing carboxyl group in the end group is dissolved in N,N-dimethylformamide to obtain a concentration of hyperbranched polymer solution containing carboxyl group in the end group of 0.9mol / L, copper acetate is dissolved in A metal ion solution with a con...

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Abstract

The invention relates to a flame-retardant and antibacterial PET fiber and a slice spinning preparation method thereof. A functional masterbatch is prepared by melt blending of a PET slice and a metal-modified hyperbranched polymer, and then the functional masterbatch and the PET slice are mixed evenly and subjected to melt spinning to produce the flame-retardant and antibacterial PET fiber. The metal-modified hyperbranched polymer is evenly dispersed in the prepared product; the metal-modified hyperbranched polymer is a network polymer formed by crosslinking a hyperbranched polymer having theend groups containing carboxyl with metal ions, has insoluble and non-melt characteristics, is insoluble in most organic solvents at the temperature of 80 DEG C or less, and is non-melt in a range ofroom temperature to T, wherein T is more than or equal to 370 DEG C; cross-linking is achieved through linking oxygen atoms on double bonds in hyperbranched polymer molecules having the end groups containing carboxyl with the metal ions through coordination bonds and linking acid radical ions at the ends of the hyperbranched polymer molecules having the end groups containing carboxyl with metal ions by ionic bonds. The method is simple, and the prepared product has good antibacterial, flame retardant and mechanical properties.

Description

technical field [0001] The invention belongs to the field of functional chemical fibers, and relates to a flame-retardant and antibacterial PET fiber and a preparation method thereof by slice spinning. Background technique [0002] The development of functional fibers is a symbol of the progress of modern fiber science. The development of functional fibers, differential fibers and high-performance fibers has created favorable conditions for the technological innovation of the traditional textile industry and the transformation to high-tech industries, and has contributed to the improvement of human living standards. Functional fiber refers to a new type of fiber that has some special function in addition to the physical and mechanical properties of ordinary fibers. [0003] In firefighting and factory and mine operations, high temperature poses a huge threat to firefighters and staff, and can easily cause fatal or injured accidents. In daily life, there are not a few cases...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/10D01F1/07D01D5/08
CPCD01D5/08D01F1/07D01F1/103D01F6/92
Inventor 孙宾邓锋朱美芳吉亚丽李剑峰周哲孙小国
Owner DONGHUA UNIV
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