阅读说明：本技术 一种纺织品阻燃耐高温涂层胶的制备方法 (Preparation method of flame-retardant high-temperature-resistant coating adhesive for textiles ) 是由 李小军 曹虹 李阳 于 2020-11-30 设计创作，主要内容包括：本发明公开了一种纺织品阻燃耐高温涂层胶的配方及其制备,包括以下成分(按质量百分比)：聚四氟乙烯：15～20％、聚氨酯：20～25％、磷氮阻燃剂：25～30%、丙烯酸树脂：20～25％、磷酸酯阻燃剂：12～18％、溶剂：3～5％、交联剂：2～4％、气相二氧化硅：0.5～1%、增稠剂：0.2～0.6、柔软剂：0.2～0.5。本发明还公开了一种纺织品阻燃耐高温涂层胶对织物进行涂层整理,遇火后在纺织品表面形成一层碳层,有效地隔绝火焰,可以通B1级阻燃测试标准。(The invention discloses a formula of a flame-retardant high-temperature-resistant coating adhesive for textiles and a preparation method thereof, wherein the flame-retardant high-temperature-resistant coating adhesive comprises the following components (in percentage by mass): polytetrafluoroethylene: 15-20% of polyurethane: 20-25% of a phosphorus-nitrogen flame retardant: 25-30% of acrylic resin: 20-25% of phosphate ester flame retardant: 12-18% and a solvent: 3-5% of a cross-linking agent: 2-4%, fumed silica: 0.5-1%, thickener: 0.2-0.6, softening agent: 0.2 to 0.5. The invention also discloses a flame-retardant high-temperature-resistant coating adhesive for textile, which is used for coating and finishing the textile, and a carbon layer is formed on the surface of the textile after the textile meets fire, so that the flame is effectively isolated, and the flame-retardant coating adhesive can pass the B1-level flame-retardant test standard.)

1. The formula and the preparation of the flame-retardant high-temperature-resistant coating adhesive for the textile are characterized by comprising the following components in percentage by mass: polytetrafluoroethylene: 15-20% of polyurethane: 20-25% of a phosphorus-nitrogen flame retardant: 25-30% of acrylic resin: 20-25% of phosphate ester flame retardant: 12-18% and a solvent: 3-5% of a cross-linking agent: 2-4%, fumed silica: 0.5-1%, thickener: 0.2-0.6, softening agent: 0.2-0.5.

2. The flame-retardant high-temperature-resistant textile coating adhesive according to claim 1, wherein the polyurethane and the acrylic resin are both water-based.

3. The flame-retardant high-temperature-resistant textile coating adhesive according to claim 1, wherein the polytetrafluoroethylene is used as a fireproof, high-temperature-resistant, strong acid and strong alkali-resistant and insulating material.

4. The flame-retardant high-temperature-resistant textile coating adhesive according to claim 1, wherein the crosslinking agent is toluene diisocyanate.

5. The flame-retardant high-temperature-resistant textile coating adhesive according to claim 1, wherein the softening agent is a silicone resin.

6. The flame-retardant high-temperature-resistant textile coating adhesive according to claim 1, wherein the fumed silica is a dispersant.

7. The preparation method of the flame-retardant high-temperature-resistant coating adhesive for the textile as claimed in any one of claims 1 to 6, comprising the following steps:

the method comprises the following steps: adding polyurethane resin, acrylic resin and organic silicon resin into a stirring kettle, adding a proper amount of water, fully stirring, controlling the temperature at 75-85 ℃, stirring for one hour, and standing to obtain a resin solution;

step two: sequentially adding a resin solution, polytetrafluoroethylene, a phosphorus-nitrogen flame retardant, a phosphate flame retardant, a cross-linking agent, fumed silica and a thickening agent into a stirring kettle, starting stirring, heating to 85-105 ℃, stirring for 30min, and then cooling to normal temperature;

step three: grinding the mixture to enable the diameter of mixed glue particles to be smaller than 8 micrometers, adding a thickening agent, fully stirring, and filtering to obtain the flame-retardant high-temperature-resistant coating glue for the textile.

Technical Field

The invention relates to the field of new chemical materials, in particular to a formula of a flame-retardant high-temperature-resistant coating adhesive for textiles and a preparation method thereof.

Background

With the continuous development of economy, industrial and civil textiles are rapidly growing, but meanwhile, the fire caused by the textiles is also continuously increased, and the life and property safety of human beings is threatened all the time. Therefore, the textile is subjected to flame-retardant and high-temperature-resistant treatment, the fire spreading speed is delayed, and the textile is very significant in reducing life and property losses. The developed countries and regions of industry currently set up corresponding textiles

The flame retardant standard and test method of the product, such as BS-5852:2006 flame retardant test standard of home textile, NTA 8825:2010 flame retardant test standard of sun-shading material, B1 grade: flame-retardant building materials: the flame-retardant material has better flame-retardant effect. It is difficult to ignite in the air when meeting open fire or under the action of high temperature, is not easy to spread quickly, and can be immediately stopped after the fire source is removed. And the related law is also released for enforcement. The method promotes the research of industrial departments and research departments of various countries on the flame retardance of textiles, thereby promoting the development of high-temperature-resistant flame-retardant coating adhesive.

The existing flame-retardant coating adhesive almost adopts a compounding technology, and the flame-retardant mechanism mainly adopts two mechanisms of a gas-phase flame-retardant mechanism and an intumescent flame retardant. The gas-phase flame retardant mechanism lacks high-temperature resistance, can not effectively isolate a fire source, and the fabric is directly boiled when meeting fire and can not be self-extinguished after being ignited.

When the intumescent flame retardant is heated, a layer is generated on the surface to play the roles of heat insulation, oxygen insulation and smoke suppression, and can prevent

The flame-retardant coating has the advantages that molten drops are generated, the uniform carbon layer with a certain thickness has good flame-retardant performance, the defects of a gas-phase flame retardant are well overcome, although the intumescent flame retardant is applied to the coating, the coating can form carbon and resist flame, the coating still has defects in the aspects of inhibition of afterflame and flame retardance, and more black smoke and larger smoke toxicity are generated in the flame-retardant process. Therefore, the invention relates to a textile with flame retardance and high temperature resistance

A method for preparing a coating paste is necessary to solve the above problems.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects in the prior art, and provide a flame-retardant fire-retardant material which is difficult to ignite in the air or under the action of high temperature, difficult to spread quickly and generates a carbon layer on the surface so as to effectively isolate flame, and the combustion is stopped immediately after the fire source is removed;

in order to achieve the purpose, the invention provides the following technical scheme: the formula of the flame-retardant high-temperature-resistant coating adhesive for the textile and the preparation thereof comprise the following components (by mass percent): polytetrafluoroethylene: 15-20% of polyurethane: 20-25% of a phosphorus-nitrogen flame retardant: 25-30% of acrylic resin: 20-25% of phosphate ester flame retardant: 12-18% and a solvent: 3-5% of a cross-linking agent: 2-4%, fumed silica: 0.5-1%, thickener: 0.2-0.6, softening agent: 0.2 to 0.5.

The flame-retardant high-temperature-resistant coating adhesive for the textile is characterized in that the polyurethane and the acrylic resin are both water-based.

Further, the flame-retardant high-temperature-resistant coating adhesive for the textile is characterized in that the polytetrafluoroethylene is used as a fireproof, high-temperature-resistant, strong acid and strong alkali resistant and insulating material.

The flame-retardant high-temperature-resistant coating adhesive for the textile is characterized in that the cross-linking agent is toluene diisocyanate.

Further, the flame-retardant high-temperature-resistant coating adhesive for the textile is characterized in that the softening agent is organic silicon resin.

Further, the flame-retardant high-temperature-resistant coating adhesive for the textile is characterized in that the fumed silica is a dispersing agent.

Further, the preparation method of the flame-retardant high-temperature-resistant coating adhesive for the textile comprises the following steps:

the method comprises the following steps: adding polyurethane resin, acrylic resin and organic silicon resin into a stirring kettle, adding a proper amount of water, fully stirring, controlling the temperature at 75-85 ℃, stirring for one hour, and standing to obtain a resin solution.

Step two: adding a resin solution, polytetrafluoroethylene, a phosphorus-nitrogen flame retardant, a phosphate flame retardant, a crosslinking agent, fumed silica and a thickening agent into a stirring kettle in sequence, starting stirring, heating to 85-105 ℃, stirring for 30min, and then cooling to normal temperature.

Step three: grinding the mixture to enable the diameter of mixed glue particles to be smaller than 8 micrometers, adding a thickening agent, fully stirring, and filtering to obtain the flame-retardant high-temperature-resistant coating glue for the textile.

The invention has the technical effects and advantages that: the phosphorus-nitrogen flame retardant and the phosphate are adopted, and the flame retardant can be matched with other raw materials to obviously improve the flame retardant property of the flame retardant; the invention adopts the fumed silica as the dispersant, so that the invention has excellent dispersibility and sagging prevention; the invention adopts polytetrafluoroethylene, polyurethane, acrylic resin and other raw materials, can form a layer of protective film at a high temperature of 200 ℃, and the protective film can resist a high temperature of 300 ℃; the polytetrafluoroethylene in the invention has good high temperature resistance, insulativity, corrosion resistance and flame retardance; the flame-retardant adhesive has strong adhesive force, bright color, quick drying, good high temperature resistance and flame retardance, can form carbon when meeting fire, and can improve the hydrostatic pressure and tearing strength of the fabric. Toxic substances such as formaldehyde, volatile solvents and the like are not released in the using process, and the service life is long. Safe and environment-friendly, and has wide market prospect.

Drawings

FIG. 1 is a photograph showing the test results of polyester fabrics according to example 4 of the present invention and comparative examples.

FIG. 2 shows the results of the test conducted in example 4 of the present invention and the comparative example.

Detailed Description

The invention will be further described with reference to the following detailed description and the accompanying drawings,

example 1: the formula of the flame-retardant high-temperature-resistant coating adhesive for the textile and the preparation thereof comprise the following components (by mass percent):

composition (I)	Polytetrafluoroethylene	Polyurethane	Phosphorus-nitrogen flame retardant	Acrylic resin	Phosphate flame retardants	Solvent(s)	Crosslinking agent	Fumed silica	Thickening agent	Softening agent
											Mass%	15	20	25	20	12	5	2	0.5	0.2	0.2

Example 1: the preparation method of the flame-retardant high-temperature-resistant coating adhesive for the textile comprises the following steps:

the method comprises the following steps: adding polyurethane resin, acrylic resin and organic silicon resin into a stirring kettle, adding a proper amount of water, fully stirring, controlling the temperature at 75-85 ℃, stirring for one hour, and standing to obtain a resin solution.

Step two: adding a resin solution, polytetrafluoroethylene, a phosphorus-nitrogen flame retardant, a phosphate flame retardant, a crosslinking agent, fumed silica and a thickening agent into a stirring kettle in sequence, starting stirring, heating to 85-105 ℃, stirring for 30min, and then cooling to normal temperature.

Step three: grinding the mixture to enable the diameter of mixed glue particles to be smaller than 8 micrometers, adding a thickening agent, fully stirring, and filtering to obtain the flame-retardant high-temperature-resistant coating glue for the textile.

Example 2: the formula of the flame-retardant high-temperature-resistant coating adhesive for the textile and the preparation thereof comprise the following components (by mass percent):

composition (I)	Polytetrafluoroethylene	Polyurethane	Phosphorus-nitrogen flame retardant	Acrylic resin	Phosphate flame retardants	Solvent(s)	Crosslinking agent	Fumed silica	Thickening agent	Softening agent
											Mass%	14	21	24	21	12	5	2	0.5	0.2	0.2

Example 2: the preparation method of the flame-retardant high-temperature-resistant coating adhesive for the textile comprises the following steps:

the method comprises the following steps: adding polyurethane resin, acrylic resin and organic silicon resin into a stirring kettle, adding a proper amount of water, fully stirring, controlling the temperature at 75-85 ℃, stirring for one hour, and standing to obtain a resin solution.

Step two: adding a resin solution, polytetrafluoroethylene, a phosphorus-nitrogen flame retardant, a phosphate flame retardant, a crosslinking agent, fumed silica and a thickening agent into a stirring kettle in sequence, starting stirring, heating to 85-105 ℃, stirring for 30min, and then cooling to normal temperature.

Step three: grinding the mixture to enable the diameter of mixed glue particles to be smaller than 8 micrometers, adding a thickening agent, fully stirring, and filtering to obtain the flame-retardant high-temperature-resistant coating glue for the textile.

Example 3: the formula of the flame-retardant high-temperature-resistant coating adhesive for the textile and the preparation thereof comprise the following components (by mass percent):

composition (I)	Polytetrafluoroethylene	Polyurethane	Phosphorus-nitrogen flame retardant	Acrylic resin	Phosphate flame retardants	Solvent(s)	Crosslinking agent	Fumed silica	Thickening agent	Softening agent
											Mass%	16	19	24	21	12	5	2	0.5	0.2	0.2

Example 3: the preparation method of the flame-retardant high-temperature-resistant coating adhesive for the textile comprises the following steps:

the method comprises the following steps: adding polyurethane resin, acrylic resin and organic silicon resin into a stirring kettle, adding a proper amount of water, fully stirring, controlling the temperature at 75-85 ℃, stirring for one hour, and standing to obtain a resin solution.

Step two: adding a resin solution, polytetrafluoroethylene, a phosphorus-nitrogen flame retardant, a phosphate flame retardant, a crosslinking agent, fumed silica and a thickening agent into a stirring kettle in sequence, starting stirring, heating to 85-105 ℃, stirring for 30min, and then cooling to normal temperature.

Step three: grinding the mixture to enable the diameter of mixed glue particles to be smaller than 8 micrometers, adding a thickening agent, fully stirring, and filtering to obtain the flame-retardant high-temperature-resistant coating glue for the textile.

Table-recipe comparison column

	Example 1	Example 2	Example 3
				Polytetrafluoroethylene	15	14	16
Polyurethane	20	21	19
				Phosphorus-nitrogen flame retardant	25	24	24
Acrylic resin	20	20	20
				Phosphate flame retardants	12	12	12
Solvent(s)	5	5	5
				Crosslinking agent	2	2	2
Fumed silica	0.5	0.5	0.5
				Thickening agent	0.2	0.2	0.2
Softening agent	0.2	0.2	0.2

The formula of the flame-retardant high-temperature-resistant coating adhesive can be prepared by the three groups of embodiments, wherein the formula effect of the flame-retardant high-temperature-resistant coating adhesive prepared by the second group of embodiments is the best; the invention adopts the fumed silica as the dispersant, so that the invention has excellent dispersibility and sagging prevention; the invention adopts polytetrafluoroethylene, polyurethane, acrylic resin and other raw materials, can form a layer of protective film at a high temperature of 200 ℃, and the protective film can resist a high temperature of 300 ℃; the polytetrafluoroethylene in the invention has good high temperature resistance, insulativity, corrosion resistance and flame retardance; the flame-retardant adhesive has strong adhesive force, bright color, quick drying, good high temperature resistance and flame retardance, can form carbon when meeting fire, and can improve the hydrostatic pressure and tearing strength of the fabric.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.