阅读说明：本技术 一种用于纺织品的阻燃材料及其制备方法 (Flame-retardant material for textiles and preparation method thereof ) 是由 刘泽祥 杨劲松 杨滨 于 2019-09-27 设计创作，主要内容包括：本发明公开了一种用于纺织品的阻燃材料及制备方法,涉及阻燃剂技术领域,本发明包括所述用于纺织的阻燃材料按照重量组份包括以下原料：聚磷酸铵85-90份,硅氧烷包覆剂5-10份,所述硅氧烷包覆剂按照重量组份包括以下原料：硅氧烷树脂5-8份,溶剂5-8份,固化剂0.-0.3份,本发明具有使得聚磷酸铵阻燃剂产品与纺织品材料具有很好的相溶性,可使阻燃剂充分发挥阻燃作用,与本发明具有用于装饰类织物的阻燃,阻燃性能可达到B1级,用于防护服织物的阻燃,其阻燃性能可达到B级的优点。(The invention discloses a flame-retardant material for textiles and a preparation method thereof, relating to the technical field of flame retardants, and the flame-retardant material for textiles comprises the following raw materials in parts by weight: 85-90 parts of ammonium polyphosphate and 5-10 parts of siloxane coating agent, wherein the siloxane coating agent comprises the following raw materials in parts by weight: 5-8 parts of siloxane resin, 5-8 parts of solvent and 0-0.3 part of curing agent, the invention has the advantages that the ammonium polyphosphate flame retardant product has good intermiscibility with textile materials, the flame retardant can fully play a flame retardant role, and the invention is used for the flame retardance of decorative fabrics, the flame retardance can reach B1 level, the flame retardance can reach B level when used for the flame retardance of protective clothing fabrics.)

1. A flame retardant material for textiles characterized by: the flame-retardant material for spinning comprises the following raw materials in parts by weight: 85-90 parts of ammonium polyphosphate and 5-10 parts of siloxane coating agent, wherein the siloxane coating agent comprises the following raw materials in parts by weight: 5-8 parts of siloxane resin, 5-8 parts of solvent and 0.1-0.3 part of curing agent.

2. A flame retardant material for a textile product according to claim 1, wherein: the ammonium polyphosphate is general ammonium polyphosphate II: the polymerization degree is 1000-1200.

3. A flame retardant material for a textile product according to claim 1, wherein: the siloxane resin is one or two of methyl trichlorosilane, dimethyl dichlorosilane, phenyl trichlorosilane, diphenyl dichlorosilane, methyl phenyl dichlorosilane, vinyl triethoxysilane, vinyl trimethoxysilane, vinyl tri (beta-methoxyethoxy) silane, aminosilane and methacryloxy silane.

4. A flame retardant material for a textile product according to claim 1, wherein: the solvent is one or two of trimethyl hydroxyl silane, methanol and ethanol.

5. A flame retardant material for a textile product according to claim 1, wherein: the curing agent is one or two of 4, 4-diaminophenylmethane, diethylenetriamine, triethylene tetramine, 4-diaminophenylmethane and triethylamine.

6. The preparation method of the flame retardant material for textiles according to claim 1, which comprises the following steps:

(1) preparation of silicone resin coating agent: adding 5-8 parts of solvent into a reactor, starting stirring after the solvent is added, slowly adding 5-8 parts of siloxane resin, continuing stirring, starting an electric heater, slowly heating to 70-80 ℃, keeping the temperature and stirring for 1.5-2.0 hours, adding 0.1-0.3 part of curing agent into the reactor, stirring for 15-20 minutes, stopping stirring, and turning off the electric heater;

(2) coating modification of ammonium polyphosphate (APP): adding 85-90 parts of ammonium polyphosphate into a reaction kettle, starting stirring, starting an electric heater, heating to 70-80 ℃, slowly adding 5-10 parts of siloxane coating agent after the reaction temperature reaches, continuing stirring, heating after the addition is finished, and keeping the temperature at 200 ℃ for 3-5 hours to carry out the curing process of resin coating APP;

(3) crushing and screening: crushing the product obtained in the step (2) to 20-30 microns, sieving and sorting, wherein the size of a screened substance is 20-25 microns;

(4) sampling detection: carrying out sampling inspection on the product obtained in the step (3) according to GB 17591-2006;

(5) packaging and warehousing: and (5) packaging and warehousing the qualified products detected in the step (4).

Technical Field

The invention relates to the technical field of flame retardants, which are used for flame retardance of textile products, and in particular relates to a flame retardant material for textiles and a preparation method thereof.

Background

The textile is a product formed by processing and weaving textile fibers, which is divided into two categories of woven fabric and knitted fabric, China is one of the earliest countries in the world for producing textiles, and the main production places are Zhejiang Pupu house, Hebei Qinghe and the like.

With the development of modern science and technology and the progress of textile industry, the variety of textiles is continuously increased, and the application range of the textiles is continuously expanded and extended to various aspects of production and life of people. However, textile materials are generally flammable or combustible, which can easily cause fire accidents. Statistically, more than about 20% of the world's fire accidents are caused or amplified by textile fires, especially residential fires. Therefore, the flame retardant function of the textile is very important for eliminating the hidden danger of fire, delaying the spread of fire and reducing the loss of life and property of people. In recent years, various countries develop researches on the flame retardant technology of textiles, and establish corresponding textile combustion performance test methods, flame retardant product standards, application laws and regulations and the like.

Research and development of flame retardant fibers the research and development of flame retardant fibers in our country began in the 70 th century. At present, fibers such as terylene, chinlon, polypropylene and the like have the capacity of batch production, and various fibers are widely applied to various fields of national economy such as industry, agriculture and the like and play a very important role in the national economy.

At present, the flame retardant method for textiles mainly adopts the step of adding a flame retardant into textile raw materials so that the textiles meet the technical requirements of national textile flame retardant standards. For the halogen flame retardant, harmful halide is easily generated in the combustion process, so that the environment is greatly polluted; therefore, the ideal flame retardant material added to the textile at present is an intumescent ammonium polyphosphate flame retardant material containing nitrogen and phosphorus elements.

Because the common ammonium polyphosphate flame retardant has the defects of poor compatibility, hygroscopicity, easy precipitation and the like with organic polymer materials, the common ammonium polyphosphate needs to be subjected to coating modification and other treatments, ammonium polyphosphate particles are subjected to microencapsulation treatment, so that the ammonium polyphosphate has better compatibility with polymer organic materials, the problems of hygroscopicity, precipitation and the like in the use process of the organic materials are solved, and a more ideal flame retardant effect is achieved.

After the flame retardant powder is ultrafine microencapsulated, the specific surface area is increased, and the surface energy is increased, so that the reactivity of the particle surface is enhanced, the dispersion of the particle in a polymer matrix material is facilitated, the interface binding force of the particle between the polymer materials can be improved, the flame retardant can fully play a flame retardant role, and the processing and forming performance of the matrix material and the mechanical performance of a product are improved. The APP is coated by a microcapsule technology (MC) to enable the surface of the APP to be coated with a coating material, so that the performance of the APP is changed. The types of the flame-retardant matrix materials are distinguished, a proper capsule material is selected, the compatibility of the microencapsulated flame retardant and the polymer is increased after the microencapsulated flame retardant is added, and the adverse effects of the flame retardant on the physical, mechanical and electrical properties of the polymer product can be reduced and eliminated.

Disclosure of Invention

The invention aims to: the invention provides a flame retardant material for textiles and a preparation method thereof, aiming at solving the problems of poor compatibility, hygroscopicity, easy precipitation and the like of common ammonium polyphosphate flame retardants and organic polymer materials.

The invention specifically adopts the following technical scheme for realizing the purpose:

a preparation method of a flame retardant material for textiles is characterized by comprising the following steps:

(1) preparation of silicone resin coating agent: adding 5-8 parts of solvent into a reactor, starting stirring after the solvent is added, slowly adding 5-8 parts of siloxane resin, continuing stirring, starting an electric heater, slowly heating to 70-80 ℃, keeping the temperature and stirring for 1.5-2.0 hours, adding 0.1-0.3 part of curing agent into the reactor, stirring for 15-20 minutes, stopping stirring, and turning off the electric heater;

(2) coating modification of ammonium polyphosphate (APP): adding 85-90 parts of ammonium polyphosphate into a reaction kettle, starting stirring, starting an electric heater, heating to 70-80 ℃, slowly adding 5-10 parts of siloxane coating agent after the reaction temperature reaches, continuing stirring, heating after the addition is finished, and keeping the temperature at 200 ℃ for 3-5 hours to carry out the curing process of resin coating APP;

(3) crushing and screening: drying and crushing the product obtained in the step (2) to 20-30 microns, and then sieving and sorting the product, wherein the size of the sieved product is 20-25 microns;

(4) sampling detection: carrying out sampling inspection on the product obtained in the step (3) according to GB 17591-2006;

(5) packaging and warehousing: and (5) packaging and warehousing the qualified products detected in the step (4).

Further, the ammonium polyphosphate is general ammonium polyphosphate II: the polymerization degree is 1000-1200.

Further, the siloxane resin is one or two of methyl trichlorosilane, dimethyl dichlorosilane, phenyl trichlorosilane, diphenyl dichlorosilane, methyl phenyl dichlorosilane, vinyl triethoxysilane, vinyl trimethoxysilane, vinyl tri (beta-methoxyethoxy) silane, aminosilane and methacryloxy silane.

Further, the solvent is one or two of trimethyl hydroxyl silane, methanol and ethanol.

Further, the curing agent is one or two of 4, 4-diaminophenylmethane, diethylenetriamine, triethylene tetramine, 4-diaminophenylmethane and triethylamine.

The invention has the following beneficial effects:

1. the ammonium polyphosphate flame retardant particle prepared by taking the ammonium polyphosphate with high polymerization degree as a capsule core and taking the siloxane resin as a wall material is subjected to microencapsulation treatment, so that the specific surface area is increased, the surface energy is increased, the reaction activity of the particle surface is enhanced, the dispersion of the particles in a high polymer matrix material is facilitated, the interface binding force of the particles among the high polymer material can be improved, the ammonium polyphosphate flame retardant product has good intermiscibility with a textile material, the flame retardant can fully play a flame retardant role, and meanwhile, in order to improve the processing forming performance of the matrix material and the mechanical property of the product, the ammonium polyphosphate is subjected to coating treatment by adopting a microcapsule technology, so that the surface of the ammonium polyphosphate is coated with a coating material, and the performance of the ammonium polyphosphate is.

2. The microencapsulation ammonium polyphosphate product produced by the technology has low solubility, enhances the intermiscibility with fibers (textiles) after coating, reduces the precipitation rate of a flame retardant, reduces the hygroscopicity, and enhances the smoothness, elasticity and water fastness of the fibers. The flame-retardant agent has better use effect in a humid environment than other textiles added with common APP products, and has better flame-retardant effect.

3. The product of the invention is used for flame retardance of decorative fabrics, the flame retardance can reach B1 level, and the product is used for flame retardance of protective clothing fabrics, and the flame retardance can reach B level.

Drawings

FIG. 1 is a schematic flow diagram of a preparation process of the present invention;

Detailed Description

In order that those skilled in the art will better understand the present invention, the following examples are provided to illustrate the present invention in further detail.