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Phosphor nitrogen fire retardant dispersion and preparation method thereof

A phosphorus-nitrogen-based flame retardant and dispersion technology are applied in the fields of phosphorus-nitrogen flame retardant dispersion and its preparation, flame retardant dispersion and its preparation, and can solve the problem that the flame retardant dispersion has poor stability and is difficult to achieve. Large-scale industrial production and other issues, to achieve good spinnability, good physical and mechanical properties, and the effect of reducing foam

Active Publication Date: 2012-03-21
CHENGDU GRACE FIBER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention aims to solve the problem that the flame retardant dispersion made of viscose fiber flame retardant has poor stability and is difficult to realize large-scale industrial production in the prior art, and provides a flame retardant dispersion and its preparation method , more precisely, to provide a dispersion of phosphorus-nitrogen flame retardant and the preparation method and application of the dispersion of phosphorus-nitrogen flame retardant suitable for viscose fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A phosphorus nitrogen flame retardant dispersion, comprising the following components in parts by weight:

[0029] 25 parts of phosphorus nitrogen flame retardant, 1 part of wetting agent, 3 parts of polymer dispersant, 1 part of deflocculant dispersant, 0.5 part of defoamer, 60 parts of deionized water;

[0030] The phosphorus nitrogen flame retardant is N, N ’ - bis(5,5-dimethyl-2-phospha-2-thioxo-1,3-dioxan-2-yl)ethylenediamine;

[0031] Described macromolecular dispersant is pH value 7, and active ingredient is in the polycarboxylate sodium salt dispersant of 43%;

[0032] The deflocculating and dispersing agent is BYK-109, an alkoxyaminoamide deflocculating and dispersing agent with a molecular weight of 4000.

Embodiment 2

[0034] A phosphorus nitrogen flame retardant dispersion, comprising the following components in parts by weight:

[0035] 30 parts of phosphorus nitrogen flame retardant, 2 parts of wetting agent, 5 parts of polymer dispersant, 2 parts of deflocculant and dispersant, 1 part of defoamer, 70 parts of deionized water;

[0036] The phosphorus nitrogen flame retardant is N, N ’ - bis(5,5-dimethyl-2-phospha-2-thioxo-1,3-dioxan-2-yl)ethylenediamine;

[0037] Described macromolecular dispersant is pH value 8, and active ingredient is in the polycarboxylate sodium salt dispersant of 47%;

[0038] The deflocculating dispersant is BYK-109, an alkoxyaminoamide deflocculating and dispersing agent with a molecular weight of 6000.

Embodiment 3

[0040] A phosphorus nitrogen flame retardant dispersion, comprising the following components in parts by weight:

[0041] 27.5 parts of phosphorus nitrogen flame retardant, 1.5 parts of wetting agent, 4 parts of polymer dispersant, 1.5 parts of deflocculant and dispersant, 0.75 parts of defoamer, 65 parts of deionized water;

[0042] The phosphorus nitrogen flame retardant is N, N ’ - bis(5,5-dimethyl-2-phospha-2-thioxo-1,3-dioxan-2-yl)ethylenediamine;

[0043] Described macromolecule dispersant is pH value 7.5, and active ingredient is ammonium polyacrylate at 45%;

[0044] The deflocculating dispersant is BYK-109, alkylhydroxyaminoamide deflocculating and dispersing agent with a molecular weight of 5000.

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Abstract

The invention relates to a phosphor nitrogen fire retardant dispersion and a preparation method thereof, and belongs to the field of fine chemical engineering. The invention aims to solve problems of weak stability of a fire retardant dispersion prepared from a fire retardant for viscose fiber of a prior art and difficulty to realize large scale industrial production, and provides a phosphor nitrogen fire retardant dispersion and a preparation method thereof. According to the method of the invention, a certain proportion of wetting agent, high-molecular dispersant, deflocculation dispersant and an antifoaming agent are added into a cylinder scoring for dispersion and stirring, etc., so that the phosphor nitrogen fire retardant dispersion disperses uniformly, has good stability, good compatibility with a viscous liquid and good spinnability, and is an acid resistant and alkali resistant fire retardant dispersion with wide application fields. The phosphor nitrogen fire retardant dispersion is mixed with the viscous liquid and treated with spinning moulding and post-treatment to obtain a fiber, which has a limit oxygen index higher than 30 and good physical machinery performance.

Description

technical field [0001] The invention relates to a flame retardant dispersion and a preparation method thereof. More specifically, the invention relates to a phosphorus-nitrogen flame retardant dispersion and a preparation method thereof, belonging to the field of fine chemicals. Background technique [0002] Viscose fiber has a wide range of uses because of its excellent hygroscopicity, easy dyeing, antistatic, and easy textile processing. However, viscose fiber is a flammable fiber, and the textiles made of it are extremely flammable and cause fires, causing great harm to people's lives and property, thus limiting its wide application. With the improvement of people's consumption level and the enhancement of safety awareness , the demand for flame retardant viscose fiber has become stronger and stronger, which has effectively promoted the flame retardant research of viscose fiber at home and abroad. [0003] At present, the flame retardants used in the production of flame-...

Claims

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Application Information

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IPC IPC(8): D01F2/10
Inventor 龙国强角俊涂大焱张勇辜庆玲程博闻任元林
Owner CHENGDU GRACE FIBER
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