阅读说明：本技术 一种红外自发热的功能布料及其制备方法 (Infrared self-heating functional cloth and preparation method thereof ) 是由 朱红军 于 2020-11-24 设计创作，主要内容包括：本发明公开了一种红外自发热的功能布料及其制备方法,红外自发热的功能布料上含有通过红外吸收溶液加热烘干固化得到的红外吸收涂层。本发明提供的红外自发热的功能布料及其制备方法,有机硅烷与硅烷偶联剂通过水解交联缩合,通过调配二者的烷基链长,可以在布料或布料纤维表面形成具有疏水效果的涂层,红外吸收剂加入后可以产生红外吸收效果,但是通常红外吸收剂的加入会破坏疏水效果,本发明选用的酞菁染料、纳米三氧化钨、纳米ATO、纳米GTO、纳米ITO、纳米钨酸铯能够在提供红外吸收效果的同时保留疏水效果,热固化剂的加入可以将涂层稳固于布料或布料纤维表面,进而得到品质优良的红外自发热的功能布料。(The invention discloses an infrared self-heating functional cloth and a preparation method thereof. According to the infrared self-heating functional cloth and the preparation method thereof, the organosilane and the silane coupling agent are subjected to hydrolytic crosslinking condensation, and a coating with a hydrophobic effect can be formed on the surface of the cloth or cloth fiber by adjusting the alkyl chain lengths of the organosilane and the silane coupling agent, and the infrared absorbing agent can generate an infrared absorbing effect after being added, but the hydrophobic effect can be destroyed by adding the infrared absorbing agent generally.)

1. The infrared self-heating functional cloth is characterized by comprising an infrared absorption coating which is obtained by curing an infrared absorption solution.

2. The infrared self-heating functional fabric according to claim 1, wherein the infrared absorption solution comprises the following components in parts by weight:

50-90 parts of mixed solution

2-10 parts of organosilane

0.5-3 parts of silane coupling agent

0.001 to 0.05 portion of catalyst

0.1 to 0.5 portion of infrared absorbent

1-10 parts of a thermal curing agent.

3. The infrared self-heating functional fabric according to claim 1, wherein the infrared absorption solution is prepared by the following steps:

adding 2-10 parts of organosilane into 50-90 parts of mixed solution according to parts by weight, adjusting the pH value to 4-5, and stirring for 2-4h at the temperature of 25-45 ℃; then, sequentially adding 0.5-3 parts of silane coupling agent and 0.001-0.05 part of catalyst, and continuously stirring for reaction for 12-24 hours; then, 0.1 to 0.5 portion of infrared absorbent and 1 to 10 portions of thermal curing agent are added in sequence and stirred evenly.

4. The infrared self-heating functional cloth according to claim 2 or 3, wherein the mixed solution is a mixed solution of deionized water and an organic solvent, and the organic solvent is selected from one or more of the following components: methanol, ethanol, isopropanol, acetone, butane, hexane.

5. The infrared self-heating functional cloth according to claim 2 or 3, wherein the organosilane is a long-chain alkyl silane, the number of carbon atoms of the long-chain silane is more than 3, and the long-chain alkyl silane is selected from one or more of the following components: dodecyl trimethoxysilane, hexadecyl dimethyl chlorosilane, heptadecyl fluorodecyl trimethoxysilane, n-octyl trimethoxysilane and octadecyl trimethoxysilane.

6. The infrared self-heating functional fabric as claimed in claim 2 or 3, wherein the silane coupling agent is a silane coupling agent containing an unsaturated group or an epoxy hydrocarbon group.

7. The infrared self-heating functional cloth according to claim 2 or 3, wherein the catalyst is selected from one or more of the following components: stannous dimethyl, toluene sulfonic acid-dibutyl tin oxide, Pt-N (C)₂H₅)₃And stannous octoate.

8. The infrared self-heating functional fabric as claimed in claim 2 or 3, wherein the infrared absorbent is selected from one of the following components: phthalocyanine dye, nano tungsten trioxide, nano ATO, nano GTO, nano ITO and nano cesium tungstate.

9. The infrared self-heating functional fabric as claimed in claim 2 or 3, wherein the thermal curing agent is selected from one or more of the following components: amino resins, alkyd resins, acrylic resins, polyurethanes.

10. A method for preparing the infrared self-heating functional cloth of any one of claims 1 to 3, which is characterized by comprising the following steps:

coating an infrared absorption solution on the surface of the cloth or cloth fiber, and then heating and curing for 5-10min at the temperature of 100-200 ℃, so that an infrared absorption coating is formed on the surface of the cloth or cloth fiber, and the required infrared self-heating functional cloth is obtained.

Technical Field

The invention belongs to the technical field of functional cloth preparation, and particularly relates to infrared self-heating functional cloth and a preparation method thereof.

Background

The clothes with the self-heating function have the advantages of keeping warm and resisting cold in winter. In the prior art, to realize self-heating of clothes, the following two methods are generally adopted:

in the first mode, a heating module is added in the clothes, and self-heating of the clothes is realized by electrifying and heating a battery. However, the additional batteries and heating modules not only add weight to the garment, but also increase the risk of the garment being worn and washed.

In the second mode, the heating fibers are added into the clothes or the clothes are directly manufactured by adopting the heating fibers. The Chinese invention patent with the application number of CN201810055988.X discloses an anti-static self-heating quilt cover cloth, which adopts olefine acid salt heating fibers to realize self-heating; the invention patent of China, application number CN201410450565.X, discloses a self-heating glove fabric, which realizes the self-heating of gloves by adopting an acrylic heating fiber. However, the principle of the heating fibers is to return the heat released by the human body to the human body, so that the heat loss of the human body is reduced, and the warm-keeping effect is achieved.

Disclosure of Invention

In order to solve the technical problems in the prior art, the invention aims to provide an infrared self-heating functional fabric and a preparation method thereof.

In order to achieve the purpose and achieve the technical effect, the invention adopts the technical scheme that:

the infrared self-heating functional cloth comprises an infrared absorption coating which is obtained by heating, drying and curing an infrared absorption solution.

Further, the infrared absorption solution comprises the following components in parts by weight:

50-90 parts of mixed solution

2-10 parts of organosilane

0.5-3 parts of silane coupling agent

0.001 to 0.05 portion of catalyst

0.1 to 0.5 portion of infrared absorbent

1-10 parts of a thermal curing agent.

Further, the infrared absorption solution is prepared by the following steps:

adding 2-10 parts of organosilane into 50-90 parts of mixed solution according to parts by weight, adjusting the pH value to 4-5, and stirring for 2-4h at the temperature of 25-45 ℃; then, sequentially adding 0.5-3 parts of silane coupling agent and 0.001-0.05 part of catalyst, and continuously stirring for reaction for 12-24 hours; then, 0.1 to 0.5 portion of infrared absorbent and 1 to 10 portions of thermal curing agent are added in sequence and stirred evenly.

Further, the mixed solution is a mixed solution of deionized water and an organic solvent, and the organic solvent is selected from one or more of the following components: methanol, ethanol, isopropanol, acetone, butane, hexane.

Further, the organosilane is a long-chain alkyl silane, the number of carbon atoms of the long-chain silane is more than 3, and the long-chain alkyl silane is selected from one or more of the following components in combination: dodecyl trimethoxysilane, hexadecyl dimethyl chlorosilane, heptadecyl fluorodecyl trimethoxysilane, n-octyl trimethoxysilane and octadecyl trimethoxysilane.

Further, the silane coupling agent is a silane coupling agent containing an unsaturated group or an epoxy hydrocarbon group.

Further, the catalyst is selected from one or more of the following components in combination: stannous dimethyl, toluene sulfonic acid-dibutyl tin oxide, Pt-N (C)₂H₅)₃And stannous octoate.

Further, the infrared absorbent is selected from one of the following components: phthalocyanine dye, nano tungsten trioxide, nano ATO, nano GTO, nano ITO and nano cesium tungstate.

Further, the phthalocyanine dye is selected from one of phthalocyanine blue BGS, phthalocyanine blue B, phthalocyanine green G and phthalocyanine blue BS.

Further, the thermal curing agent is selected from one or more of the following components in combination: amino resins, alkyd resins, acrylic resins, polyurethanes.

Further, the amino resin is selected from one of the following components: melamine formaldehyde resin, urea formaldehyde resin, alkyl melamine formaldehyde resin.

Further, the alkyd resin is a resin obtained by condensing one or more of glycerol, pentaerythritol and trimethylolpropane and one or more of phthalic anhydride, isophthalic acid, linolenic acid, linoleic acid and oleic acid.

Further, the acrylic resin is polymethacrylate or a copolymer of polymethacrylate and one of acrylonitrile, acrylamide, vinyl acetate and styrene.

The invention also discloses a preparation method of the infrared self-heating functional cloth, which comprises the following steps:

coating an infrared absorption solution on the surface of the cloth or cloth fiber, and then heating, drying and curing for 5-10min at the temperature of 100-200 ℃, so that an infrared absorption coating is formed on the surface of the cloth or cloth fiber, and the required infrared self-heating functional cloth is obtained.

Compared with the prior art, the invention has the beneficial effects that:

the invention discloses an infrared self-heating functional cloth and a preparation method thereof. According to the infrared self-heating functional cloth and the preparation method thereof, the organosilane and the silane coupling agent are subjected to hydrolytic crosslinking condensation, and a coating with a hydrophobic effect can be formed on the surface of the cloth or cloth fiber by adjusting the alkyl chain lengths of the organosilane and the silane coupling agent, and the infrared absorbing agent can generate an infrared absorbing effect after being added, but the hydrophobic effect can be destroyed by adding the infrared absorbing agent generally.

Detailed Description

The following detailed description of the embodiments of the present invention is provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to clearly and clearly define the scope of the present invention.

An infrared self-heating functional fabric is characterized in that an infrared absorption coating is added on fabric or fabric fibers of the infrared self-heating functional fabric, so that infrared absorption of the fabric on sunlight is increased, infrared reflection is reduced, and a self-heating function of the fabric is achieved.

The infrared self-heating functional cloth is characterized in that the surface of cloth or cloth fiber of the infrared self-heating functional cloth comprises an infrared absorption coating, and the infrared absorption coating is obtained by coating, spraying or dip-coating an infrared absorption solution on the cloth or cloth fiber and heating and curing.

The infrared absorption solution comprises the following components in parts by weight:

50-90 parts of mixed solution

2-10 parts of organosilane

0.5-3 parts of silane coupling agent

0.001 to 0.05 portion of catalyst

0.1 to 0.5 portion of infrared absorbent

1-10 parts of a thermal curing agent.

The preparation method of the infrared absorption solution comprises the following steps:

adding 2-10 parts of organosilane into 50-90 parts of mixed solution according to parts by weight, adjusting the pH value to 4-5, and stirring for 2-4h at the temperature of 25-45 ℃; then sequentially adding 0.5-3 parts of silane coupling agent and 0.001-0.05 part of catalyst, and continuously stirring for reaction for 12-24 hours; and then sequentially adding 0.1-0.5 part of infrared absorbent and 1-10 parts of thermal curing agent, and uniformly stirring to obtain the required infrared absorption solution.

A preparation method of infrared self-heating functional cloth comprises the following steps:

coating an infrared absorption solution on the cloth or the surface of the cloth fiber of the infrared self-heating functional cloth by spraying or dip-coating, and heating and drying for 5-10min at the temperature of 100-200 ℃ to obtain the required infrared self-heating functional cloth.

The mixed solution is a mixed solution of deionized water and an organic solvent; the organic solvent is selected from one or more of the following components: methanol, ethanol, isopropanol, acetone, butane, hexane.

The organosilane is a long-chain alkyl silane, the number of carbon atoms of the long-chain silane is more than 3, and the long-chain alkyl silane is selected from one or more of the following components in combination: dodecyl trimethoxysilane, hexadecyl dimethyl chlorosilane, heptadecyl fluorodecyl trimethoxysilane, n-octyl trimethoxysilane and octadecyl trimethoxysilane.

The silane coupling agent is a silane coupling agent containing unsaturated groups or epoxy hydrocarbyl groups.

The catalyst is selected from one or more of the following components: stannous dimethyl, toluene sulfonic acid-dibutyl tin oxide, Pt-N (C)₂H₅)₃And stannous octoate.

The infrared absorbent is selected from one of the following components: the dye comprises phthalocyanine dye, nano tungsten trioxide, nano ATO, nano GTO, nano ITO and nano cesium tungstate, wherein the phthalocyanine dye is selected from one of phthalocyanine blue BGS, phthalocyanine blue B, phthalocyanine green G and phthalocyanine blue BS.

The thermal curing agent is selected from one or more of the following components: amino resins, alkyd resins, acrylic resins, polyurethanes; the amino resin is any one of melamine formaldehyde resin, urea resin and alkyl melamine formaldehyde resin; the alkyd resin is a resin obtained by condensing one or more of glycerol, pentaerythritol and trimethylolpropane and one or more of phthalic anhydride, isophthalic acid, linolenic acid, linoleic acid and oleic acid; the acrylic resin is polymethacrylate or a copolymer of the polymethacrylate and any one of acrylonitrile, acrylamide, vinyl acetate and styrene.

Example 1

A preparation method of infrared self-heating functional cloth comprises the following steps:

(1) preparing a mixed solution: mixing water and ethanol according to a volume ratio of 1: 3, mixing and preparing;

(2) preparing an infrared absorption solution: adding 80g of the mixed solution into a reaction kettle, adding 10g of organosilane dodecyl trimethoxy silane, adjusting the pH to 4-5, and stirring at the temperature of 25-45 ℃ for 4 hours; adding 3g of silane coupling agent vinyl trimethoxy silane and adding 0.01g of catalyst stannous dimethyl, and continuing to react for 12 hours; adding 0.5g of infrared absorbent phthalocyanine blue BGS and 10g of polymethacrylate-styrene copolymer, and uniformly stirring;

(3) and dip-coating the infrared absorption solution on the surface of the cloth or the fiber of the cloth, and heating and drying for 10min at 120 ℃ to obtain the required infrared self-heating functional cloth.

Example 2

A preparation method of infrared self-heating functional cloth comprises the following steps:

(1) preparing a mixed solution: mixing water and ethanol according to a volume ratio of 1: 3, mixing and preparing;

(2) preparing an infrared absorption solution: adding 50g of the mixed solution into a reaction kettle, adding 2g of organosilane dodecyl trimethoxy silane, adjusting the pH to 4-5, and stirring at 25-45 ℃ for 4 hours; adding 0.5g of silane coupling agent vinyl trimethoxy silane, adding 0.001g of catalyst stannous dimethyl, and continuing to react for 12 hours; adding 0.1g of infrared absorbent nano ITO and 1g of polymethacrylate-styrene copolymer, and uniformly stirring for later use;

(3) and dip-coating the infrared absorption solution on the surface of the cloth or the fiber of the cloth, and heating and drying for 10min at 120 ℃ to obtain the required cloth, thus obtaining the required infrared self-heating functional cloth.

Example 3

A preparation method of infrared self-heating functional cloth comprises the following steps:

(1) preparing a mixed solution: mixing water and ethanol according to a volume ratio of 1: 3, mixing and preparing;

(2) preparing an infrared absorption solution: adding 90g of the mixed solution into a reaction kettle, adding 5g of organosilane dodecyl trimethoxy silane, adjusting the pH to 4-5, and stirring at the temperature of 25-45 ℃ for 4 hours; 2g of silane coupling agent vinyl trimethoxy silane is added, 0.05g of catalyst stannous chloride is added, and the reaction is continued for 24 hours; adding 0.3g of infrared absorbent nano tungsten trioxide and 5g of polymethacrylate-styrene copolymer, and uniformly stirring for later use;

(3) and dip-coating the infrared absorption solution on the surface of the cloth or the fiber of the cloth, and heating and drying for 10min at 120 ℃ to obtain the required cloth, thus obtaining the required infrared self-heating functional cloth.

Comparative example 1

Comparative example 1 is a cloth without any treatment.

The fabrics obtained in examples 1 to 3 and the fabric of comparative example 1 were all placed in the sun at an ambient temperature of 15 ℃, a humidity of 42% RH, and the surface temperatures of the four fabrics were measured at different times while keeping the same position and angle, and the measurement data are as follows in table 1:

TABLE 1

As can be seen from the above Table 1, compared with the comparative example 1, the surface temperature of the cloth of examples 1 to 3 was significantly increased under the same period of irradiation with sunlight, and the cloth had an infrared self-heating function.

The parts of the invention not specifically described can be realized by adopting the prior art, and the details are not described herein.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.