CN114634761B

CN114634761B - Outdoor textile coating adhesive and preparation method thereof

Info

Publication number: CN114634761B
Application number: CN202110444154.XA
Authority: CN
Inventors: 袁宜恩
Original assignee: Shanghai Baolijia New Material Co ltd
Current assignee: Shanghai Baolijia New Material Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2023-01-17
Anticipated expiration: 2041-04-23
Also published as: CN114634761A

Abstract

The invention discloses an outdoor textile coating adhesive and a preparation method thereof, wherein the raw materials comprise the following components in parts by weight: 50-80 parts of polyrotaxane, 10-12 parts of polysaccharide, 20-30 parts of high molecular compound, 5-8 parts of phenols, 0.02-0.05 part of catalyst, 1-10 parts of auxiliary agent, 8-10 parts of carbon material, 150-200 parts of dimethyl sulfoxide and 200-400 parts of deionized water. The ultraviolet-resistant coating adhesive with excellent ultraviolet light absorption and utilization is prepared, can particularly cope with the situation of long-time outdoor strong sunlight irradiation, is particularly suitable for being applied to working clothes or other covering textiles used for long-time work, has excellent outdoor service life, and has excellent production and use prospects.

Description

Outdoor textile coating adhesive and preparation method thereof

Technical Field

The invention relates to the field of textiles, in particular to an outdoor textile coating adhesive and a preparation method thereof.

Background

With the continuous development of technology and economy since the 21 st century, the research of green textiles and textile ecology by the textile industry has become more and more intense. This is mainly because, although the economy and technology are continuously improved, people have the ability to produce textiles with better hand feeling, more gorgeous and better look, but with the global problems of energy shortage, environmental deterioration, financial crisis, global warming and the like, the market of the world textiles has changed significantly. As people increasingly put forward stricter requirements on the aspects of human safety, ecological health and the like of textiles, the manufacture of the textiles tends to be more and more multipurpose, comprehensive in performance, adaptive to the direction of special environment and the like. In these respects, in addition to the role of the raw material of the fabric itself, the use of textile coating glues plays a crucial role.

The textile coating adhesive is a textile functional adhesive which is coated on the surface of a textile and can enhance or supplement various properties of the textile. The textile coating adhesive can not only carry out after-finishing on the textile so that the textile has leather feeling, high resilience, smoothness and other hand feeling effects, but also can be prepared according to different raw material proportions so as to endow the textile with other performances of water resistance, air permeability, moisture permeability, flame retardance, static resistance and the like. However, the anti-ultraviolet performance of the textile coating adhesive in the prior art, especially the anti-ultraviolet performance of some outdoor fabrics irradiated by high-intensity sunlight for a long time is not improved well, and the quality problem of the fabrics can still be caused by the long-time strong sunlight irradiation. These conditions can have a significant negative impact on the appearance, performance, etc. of some outdoor textiles, thereby reducing the useful life of the outdoor textiles.

Therefore, it is a significant task to develop a coating adhesive for textile fabrics, which can be used for outdoor long-time high-intensity sunlight irradiation, so as to improve the service life and the quality of the textiles.

Disclosure of Invention

In order to solve the problems, the invention provides an outdoor textile coating adhesive which comprises the following raw materials in parts by weight: 50-80 parts of polyrotaxane, 10-12 parts of polysaccharide, 20-30 parts of high molecular compound, 5-8 parts of phenols, 0.02-0.05 part of catalyst, 1-10 parts of auxiliary agent, 8-10 parts of carbon material, 150-200 parts of dimethyl sulfoxide and 200-400 parts of deionized water.

In a preferred embodiment, the catalyst is at least one of dibutyltin dilaurate and dibutyltin diacetate.

Preferably, the carbon material is at least one of graphene, graphene oxide, fullerene, graphite, and carbon nanotubes.

Preferably, the fineness of the carbon material is 200 to 400nm.

As a preferable scheme, the weight ratio of the auxiliary agent to the carbon material is 2-3: 4 to 5.

In a preferred embodiment, the polysaccharide is at least one of α -cyclodextrin, β -cyclodextrin or γ -cyclodextrin.

As a preferable scheme, the auxiliary agent is at least one of titanium dioxide, zinc oxide, perovskite powder, silicon dioxide, modified titanium dioxide and modified zinc oxide.

Preferably, the particle size of the auxiliary agent is 50-100 nm.

Preferably, the polymer compound is at least one of polyether polyurethane and polyester polyurethane.

The invention provides a preparation method of the outdoor textile coating adhesive, which comprises the following steps: (1) Dissolving polyrotaxane, a high molecular compound and polysaccharide in dimethyl sulfoxide, adding a catalyst, and stirring and reacting at 85 ℃ for 5-6 hours; (2) And (3) after the reaction is finished, washing and filtering, removing the solvent and impurities, adding a proper amount of auxiliary agent, carbon material, deionized water and phenols, and stirring for 1-2 hours to obtain the outdoor textile coating adhesive.

Has the advantages that:

1. the invention provides the anti-ultraviolet coating adhesive with excellent ultraviolet light absorption and utilization, which can particularly deal with the situation of long-time outdoor strong sunlight irradiation, is particularly suitable for being applied to working clothes or other covering textiles used for long-time work, and has excellent outdoor service life.

2. According to the invention, through the excellent crosslinking effect of the raw materials such as polyrotaxane molecules, cyclodextrin and polyurethane, the prepared coating adhesive has good elasticity and good flexibility and strength when an external force is applied.

3. According to the invention, the accumulation of the photogenerated carriers on the titanium dioxide is further improved through the synergistic effect of the modified titanium dioxide and the pretreated graphene, so that the coating adhesive has excellent oxidative degradation performance of organic pollutants under the irradiation of sunlight and has good pollution resistance.

Detailed Description

The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.

As used herein, the term "consisting of 8230; preparation" is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.

The conjunction "consisting of 8230comprises" excludes any non-specified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of 8230title" appears in a clause of the subject matter of the claims and not immediately after the subject matter, it defines only the elements described in the clause; no other elements are excluded from the claims as a whole.

When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or range defined by a list of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when the range "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.

The singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. "optional" or "either" means that the subsequently described event or events may or may not occur, and that the description includes instances where the event occurs and instances where it does not.

Approximating language, as used herein throughout the specification and claims, is intended to modify a quantity, such that the invention is not limited to the specific quantity, but includes portions that are literally received for modification without substantial change in the basic function to which the invention is related. Accordingly, the use of "about" to modify a numerical value means that the invention is not limited to the precise value. In some instances, the approximating language may correspond to the precision of an instrument for measuring the value. In the present description and claims, range limitations may be combined and/or interchanged, including all sub-ranges contained therein if not otherwise stated.

In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the stated number clearly indicates that the singular form is intended.

In order to solve the problems, the invention provides an outdoor textile coating adhesive in a first aspect, which comprises the following raw materials in parts by weight: 50-80 parts of polyrotaxane, 10-12 parts of polysaccharide, 20-30 parts of high molecular compound, 5-8 parts of phenols, 0.02-0.05 part of catalyst, 1-10 parts of auxiliary agent, 8-10 parts of carbon material, 150-200 parts of dimethyl sulfoxide and 200-400 parts of deionized water.

In some preferred embodiments, the linear molecule in the polyrotaxane is polyethylene glycol; the cyclic molecule in the polyrotaxane is at least one of alpha-cyclodextrin, beta-cyclodextrin or gamma-cyclodextrin; the end capping group in the polyrotaxane is aurantiamamine.

In some preferred embodiments, the polyrotaxane is prepared by a method comprising: (1) polyethylene glycol end carboxylation: dissolving polyethylene glycol in deionized water, respectively adding 2, 6-tetramethylpiperidine-1-oxyl, sodium bromide and sodium hypochlorite, adjusting the pH of the solution, stirring at room temperature for reaction for 15-30 min, adding absolute ethanol into the reaction solution to terminate the reaction, adjusting the pH of the solution with hydrochloric acid, extracting the product with dichloromethane for 4-5 times, and performing rotary evaporation to obtain a crude product; dissolving the crude product in hot ethanol, evaporating to dryness, dissolving the product in ethanol again, recrystallizing twice, and drying under reduced pressure to obtain terminal carboxylated polyethylene glycol; (2) Preparing a compound of alpha-cyclodextrin and polyethylene glycol with carboxylated tail ends: dissolving alpha-cyclodextrin in deionized water to prepare a saturated solution for later use; adding terminal carboxylated polyethylene glycol into a round-bottom flask, adding deionized water, stirring for dissolving, then dropwise adding a saturated solution of alpha-cyclodextrin, stirring, carrying out reflux reaction at 60-80 ℃ for a period of time, putting the mixed solution into a refrigerator at 5-8 ℃, stirring overnight, allowing white precipitate to appear, and freeze-drying to obtain a white solid; (3) preparing polyrotaxane by blocking amantadine: preparation of amantadine: dissolving a proper amount of amantadine hydrochloride in a small amount of deionized water, titrating with a sodium bicarbonate solution until no bubbles are generated, extracting with a proper amount of dichloromethane, removing the dichloromethane by rotary evaporation, and drying in vacuum at 20-40 ℃ for 5-7 hours to obtain white solid of amantadine; (4) preparation of final product: taking the white solid product in the step (2), amantadine, benzotriazole-1-yloxytris (dimethylamino) phosphonium hexafluorophosphate and N, N-diisopropylethylamine to dissolve in DMF, stirring overnight at room temperature to obtain a mixture similar to slurry, washing the mixture twice with anhydrous N, N-dimethylformamide and methanol at a ratio of 1.

In some preferred embodiments, the catalyst is at least one of dibutyltin dilaurate, dibutyltin diacetate.

In some preferred embodiments, the carbon material is at least one of graphene, graphene oxide, fullerene, graphite, carbon nanotubes.

In some preferred embodiments, the carbon material is graphene.

In some preferred embodiments, the graphene is a large-sized graphene after multiple ball milling and ultrasonic treatment.

In some preferred embodiments, the fineness of the large-sized graphene is 1 to 2 μm.

In some preferred embodiments, the carbon material has a fineness of 200 to 400nm.

In some preferred embodiments, the weight ratio of the auxiliary agent to the carbon material is from 2 to 3:4 to 5.

In some preferred embodiments, the preparation method of the large-size graphene after multiple ball milling and ultrasonic treatment comprises the following steps: (1) Putting the purchased graphene with larger size and fineness into an automatic ball mill for ball milling for 5-10 minutes; (2) Taking out the ball-milled graphene, performing ultrasonic treatment for 4-5 hours by using a high-power probe of 600-700W, and then drying; (3) And repeating the steps of the previous two steps for 5-6 times until the average fineness of the graphene is less than 400nm, thereby obtaining the pretreated graphene.

In some preferred embodiments, the phenol is tea polyphenol.

In some preferred embodiments, the polysaccharide is at least one of alpha-cyclodextrin, beta-cyclodextrin, or gamma-cyclodextrin.

In some preferred embodiments, the auxiliary agent is at least one of titanium dioxide, zinc oxide, perovskite powder, silicon dioxide, modified titanium dioxide and modified zinc oxide.

In some preferred embodiments, the particle size of the adjuvant is from 50 to 100nm.

In some preferred embodiments, the adjunct is a modified titanium dioxide.

In some preferred embodiments, the modified titanium dioxide is prepared by the following method: (1) Ultrasonically dispersing titanium dioxide in an ethanol solution, heating to 50-60 ℃, then adding a certain amount of ammonium chloride and melamine, and stirring for 30-40 minutes; (2) Evaporating the obtained solution to dryness, and placing the solution into a muffle furnace for calcination, wherein the heating rate is 3-6 ℃ per minute, the highest temperature is 500 ℃, and the calcination time is 4-5 hours.

In some preferred embodiments, the weight ratio of ammonium chloride to melamine is from 4 to 5:3.

according to the invention, the modified titanium dioxide is added into the coating adhesive, so that the light resistance of the coating adhesive under strong sunlight is obviously improved, the textile has excellent anti-pollution performance, and the service life of the outdoor textile is effectively prolonged. The applicant speculates that: the modified titanium dioxide forms a tightly-coated carbon-nitrogen covalent compound layer on the surface of the titanium dioxide, the compound layer has proper valence band and conduction band energy, and can form a special PN junction structure after being combined with the titanium dioxide to form an electron flow circulation channel in the composite particles. When the solar cell is irradiated by strong sunlight, the excitation of photon-generated carriers and the formation of electron holes can be promoted, the accumulation of the photon-generated carriers in a valence band and a conduction band can be simultaneously promoted, and the recombination phenomenon of the photon-generated carriers of carbon nitride and titanium dioxide is reduced. Therefore, the forbidden band distance between the actual action valence band and the conduction band of the composite particle is further shortened, and the absorption capacity of the modified composite particle on ultraviolet wavelength and the utilization capacity of a visible light waveband are improved.

The applicant finds that a large amount of surface hydrophilic groups attached to the modified titanium dioxide particles can be introduced after the modified titanium dioxide particles are added, so that the water resistance of the coating adhesive is reduced, but the applicant finds that the addition of the large-size graphene subjected to multiple ball milling and ultrasonic treatment can further improve the light resistance and pollution resistance, and can also improve the water resistance of the coating adhesive and the retention rate of the modified particles on the surface of the fabric. The applicant speculates that: when large-size graphene is subjected to ball milling and ultrasonic pretreatment, and the final fineness reaches 200-400 nm, groups on the surface and the edge of the graphene can effectively generate adsorption or hydrogen bond action with hydroxyl groups on the surface of modified titanium dioxide, so that modified particles are effectively loaded on the graphene, a firmer three-stage heterojunction structure is formed, a longer electron circulation channel is formed in a local region where the graphene loads composite particles, the positions of photogenerated carriers and electron holes are enlarged as much as possible, and a more effective oxidation effect is achieved. Meanwhile, the interlayer distance of the graphene subjected to ball milling and ultrasonic treatment for multiple times is increased, and the multi-layer graphene is separated, so that the smooth state of the surface of the single-layer graphene is spontaneously promoted to be changed to generate plane wrinkles, the surface roughness is obviously improved, but the surface energy is reduced, and the difference between the internal binding energy of water molecules and the adsorption energy of the surface of the graphene is gradually enlarged.

In some preferred embodiments, the polymer compound is at least one of polyether polyurethane and polyester polyurethane.

In some preferred embodiments, the weight ratio of the carbon material to the polymer compound is from 4 to 5:10 to 15.

In some preferred embodiments, the polymeric compound is a polyether polyurethane.

In some preferred embodiments, the polyether polyol in the polyether polyurethane has a functionality of 4 to 5.

According to the invention, the water resistance of the coating adhesive is further improved by adding polyether polyurethane into the coating adhesive, and the flexibility and hand feeling of outdoor textiles can be effectively improved. The applicant speculates that: the amount of hydrophilic groups introduced by the graphene sometimes exceeds a desired amount, which may cause a decrease in the water resistance of the coating paste. And the addition of polyether polyurethane, especially when the weight ratio of graphene to polyether polyurethane is 4-5: 10-15 hours, an-NCO group in the polyether polyurethane can generate effective crosslinking reaction with an active group on polyrotaxane, so that the mobility of the group in the coating adhesive is limited, more long-chain structures are generated, the coating adhesive is entangled with lamellar graphene, and the overall surface energy of the coating adhesive is improved; and the polyether polyurethane can also generate a large number of carbon-oxygen simple chain links, reduce the energy required by intramolecular rotation and water molecule adsorption, and further, the existence of ether bonds in the polyether polyurethane can also neutralize hydrophilic groups in the coating adhesive.

The second aspect of the invention provides a preparation method of the outdoor textile coating adhesive, which comprises the following steps: (1) Dissolving polyrotaxane, a high molecular compound and polysaccharide in dimethyl sulfoxide, adding a catalyst, and stirring and reacting at 85 ℃ for 5-6 hours; (2) And (3) after the reaction is finished, washing and filtering, removing the solvent and impurities, adding a proper amount of auxiliary agents, carbon materials, deionized water and phenols, and stirring for 1-2 hours to obtain the outdoor textile coating adhesive.

Examples

The technical solution of the present invention is described in detail by the following examples, but the scope of the present invention is not limited to all of the examples. The starting materials of the present invention are all commercially available unless otherwise specified.

Example 1

The first aspect of embodiment 1 provides an outdoor textile coating adhesive, which comprises the following raw materials in parts by weight: 70 parts of polyrotaxane, 12 parts of gamma-cyclodextrin, 25 parts of polyether polyurethane, 7 parts of tea polyphenol, 0.03 part of dibutyltin dilaurate, 6 parts of modified titanium dioxide (with the average fineness of 60 nm), 9 parts of graphene (with the average fineness of 300 nm), 160 parts of dimethyl sulfoxide and 300 parts of deionized water.

In this example, the preparation method of polyrotaxane comprises (in parts by weight): (1) polyethylene glycol end carboxylation: dissolving 8 parts of polyethylene glycol in 100 parts of deionized water, respectively adding 0.8 part of 2, 6-tetramethylpiperidine-1-oxyl, 0.8 part of sodium bromide and 10 parts of sodium hypochlorite, adjusting the pH of the solution to 10, stirring at room temperature for 20 minutes, adding 8 parts of absolute ethyl alcohol into the reaction solution to terminate the reaction, adjusting the pH of the solution to 2.5 by hydrochloric acid, extracting the product by using dichloromethane for 3 times, and performing rotary evaporation to obtain a crude product; dissolving the crude product in 200 parts of hot ethanol, evaporating to dryness, dissolving the product in the same amount of ethanol again, recrystallizing twice, and drying under reduced pressure for 40 hours to obtain terminal carboxylated polyethylene glycol; (2) Preparing a compound of alpha-cyclodextrin and polyethylene glycol with carboxylated tail ends: dissolving 5 parts of alpha-cyclodextrin in 30 parts of deionized water to prepare a saturated solution for later use; taking 2 parts of polyethylene glycol with carboxylated tail ends into a round-bottom flask, adding 30 parts of deionized water, stirring for dissolving, then dropwise adding a saturated solution of alpha-cyclodextrin, stirring, carrying out reflux reaction at 65 ℃ for 2 hours, then putting the mixed solution into a refrigerator at 6 ℃, stirring overnight, allowing white precipitates to appear, and freeze-drying to obtain a white solid; (3) preparing polyrotaxane by blocking amantadine: preparing amantadine: dissolving 4 parts of amantadine hydrochloride in 20 parts of deionized water, titrating with 0.1mol/L sodium bicarbonate solution until no bubbles are generated, extracting with 10 parts of dichloromethane, removing the dichloromethane by rotary evaporation, and drying in vacuum at 25 ℃ for 7 hours to obtain white solid of amantadine; (4) preparation of final product: taking the white solid product in the step (2), 8 parts of amantadine, 3 parts of benzotriazole-1-yloxytris (dimethylamino) phosphonium hexafluorophosphate and 2 parts of N, N-diisopropylethylamine, dissolving in 50 parts of DMF, stirring overnight at room temperature to obtain a mixture similar to slurry, washing the mixture twice with anhydrous N, N-dimethylformamide and methanol at a ratio of 1.

In this example, the preparation method of the modified titanium dioxide comprises (by weight): (1) Ultrasonically dispersing 2 parts of titanium dioxide in 100 parts of ethanol solution, heating to 60 ℃, adding 7 parts of a mixture of ammonium chloride and melamine (the weight ratio of the ammonium chloride to the melamine is 4: 3), and stirring for 35 minutes; (2) Evaporating the obtained solution to dryness, and placing the solution into a muffle furnace for calcination, wherein the heating rate is 5 ℃ per minute, the highest temperature is 500 ℃, and the calcination time is 5 hours, so as to obtain the catalyst.

In this embodiment, the graphene pretreatment method includes: (1) Putting the purchased graphene with the size of 1.5 mu m into an automatic ball mill for ball milling for 8 minutes; (2) Taking out the ball-milled graphene, carrying out ultrasonic treatment for 4.5 hours by using a high-power probe of 700W, and then drying; (3) And repeating the previous two steps for 5 times until the average fineness of the graphene is 300nm, thereby obtaining the pretreated graphene.

In this example, the polyethylene glycol is a polyethylene glycol having an average molecular weight of 20000 sold by japan blue-wood chemical limited.

In this example, gamma-cyclodextrin CAS is 17465-86-0; CAS, 84650-60-2, tea polyphenol; dibutyltin dilaurate CAS 77-58-7;2, 6-tetramethylpiperidin-1-yloxyCAS 2564-83-2; alpha-cyclodextrin CAS 100-16-20-3; 768-94-5 of amantadine CAS; benzotriazol-1-yloxytris (dimethylamino) phosphonium hexafluorophosphate CAS:56602-33-6; CAS, 14024-48-7, N-diisopropylethylamine; melamine CAS:108-78-1.

In this example, the polyether polyurethane was a BTE-series polyether polyurethane product sold by shanghai best plastics materials ltd.

Example 2

The embodiment of the present invention is different from embodiment 1 in that: the weight ratio of melamine to ammonium chloride is 5.

Example 3

The embodiment of the present invention is different from embodiment 1 in that: 30 parts of polyether polyurethane.

Comparative example 1

The embodiment of this comparative example is the same as example 1 except that: the weight ratio of melamine to ammonium chloride is 1.

Comparative example 2

The embodiment of this comparative example is the same as example 1 except that: the titanium dioxide is not modified.

Comparative example 3

The embodiment of this comparative example is the same as example 1 except that: the number of times of the pretreatment of the graphene was repeated 3 times, and the average fineness of the graphene was 650nm.

Comparative example 4

The embodiment of this comparative example is the same as example 1 except that: graphene having an average fineness of 1.5 μm was directly used.

Comparative example 5

The embodiment of this comparative example is the same as example 1 except that: the polyether polyurethane accounts for 10 parts.

Comparative example 6

The embodiment of this comparative example is the same as example 1 except that: the polyether polyurethane is 50 parts.

Evaluation of Properties

1. Ultraviolet resistance: the coating adhesive prepared in each example and comparative example is coated on the same textile, dried and fixed, the ultraviolet resistance of the textile is tested by referring to GB/T18830-2002 and is characterized by a UPF value, 5 samples are tested in each example comparative example, and the average value of the measured values is recorded in a table 1.

2. Anti-pollution performance: under the action of sufficient light, the coating adhesive prepared in each example and each comparative example is coated on the same textile, dried and fixed, the anti-pollution performance of the textile is characterized by referring to GB/T30159.1-2013, 5 samples are tested in each comparative example of the example, and the average value of the measured values is recorded in a table 1.

3. Water resistance: the coating adhesive prepared in each example and comparative example was coated on the same textile, dried and fixed, and the hydrolysis angle value of the surface of the textile was measured by the sitting drop method, the retention time of the water drop on the surface was 10 seconds, 5 samples were tested in each example comparative example, and the average value of the measured values is shown in table 1.

TABLE 1

Examples	UPF	Pollution resistance	Water contact angle °
				Example 1	232	5	126
Example 2	227	5	121
				Example 3	231	5	124
Comparative example 1	167	3-4	97
				Comparative example 2	145	3-4	95
Comparative example 3	158	3-4	88
				Comparative example 4	143	3-4	89
Comparative example 5	197	3-4	85
				Comparative example 6	202	3-4	90

Through the examples 1-3, the comparative examples 1-6 and the table 1, the outdoor textile coating adhesive provided by the invention has good light resistance, pollution prevention and water resistance, is suitable for being popularized in the field of textiles, and has a wide development prospect. Wherein example 1 achieves the best performance index with the best raw material mix and preparation process.

Finally, it should be understood that the above-described embodiments are merely preferred embodiments of the present invention, and not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. An outdoor textile coating adhesive is characterized in that: the raw materials comprise the following components in parts by weight: 50-80 parts of polyrotaxane, 10-12 parts of polysaccharide, 20-30 parts of a high molecular compound, 5-8 parts of phenols, 0.02-0.05 part of a catalyst, 1-10 parts of an auxiliary agent, 8-10 parts of a carbon material, 150-200 parts of dimethyl sulfoxide and 200-400 parts of deionized water;

the carbon material is large-size graphene subjected to multiple ball milling and ultrasonic treatment;

the fineness of the carbon material is 200 to 400nm;

the weight ratio of the auxiliary agent to the carbon material is 2 to 3:4 to 5;

the auxiliary agent is modified titanium dioxide;

the preparation method of the modified titanium dioxide comprises the following steps: (1) Ultrasonically dispersing titanium dioxide in an ethanol solution, heating to 50-60 ℃, then adding a certain amount of ammonium chloride and melamine, and stirring for 30-40 minutes; (2) Evaporating the obtained solution to dryness, and placing the solution into a muffle furnace for calcination, wherein the heating speed is 3 to 6 ℃ per minute, the highest temperature is 500 ℃, and the calcination time is 4 to 5 hours;

the weight ratio of the ammonium chloride to the melamine is 4 to 5:3;

the particle size of the auxiliary agent is 50 to 100nm;

the high molecular compound is at least one of polyether polyurethane and polyester polyurethane.

2. An outdoor textile coating glue according to claim 1, characterized in that: the catalyst is at least one of dibutyltin dilaurate and dibutyltin diacetate.

3. An outdoor textile coating glue according to claim 1, characterized in that: the polysaccharide is at least one of alpha-cyclodextrin, beta-cyclodextrin or gamma-cyclodextrin.

4. A method for preparing the outdoor textile coating adhesive according to any one of claims 1 to 3, which is characterized by comprising the following steps: the method comprises the following steps: (1) Dissolving polyrotaxane, a high molecular compound and polysaccharide in dimethyl sulfoxide, adding a catalyst, and stirring and reacting at 85 ℃ for 5 to 6 hours; (2) And (3) after the reaction is finished, washing and filtering, removing the solvent and impurities, adding a proper amount of auxiliary agent, carbon material, deionized water and phenols, and stirring for 1 to 2 hours to obtain the outdoor textile coating adhesive.