Water-based bio-based high-moisture-permeability textile coating adhesive and preparation method thereof

Abstract

The invention discloses a water-based bio-based high-moisture-permeability textile coating adhesive. The coating adhesive is prepared from the following raw material components in percentage by weight: 10 to 50 weight percent of water, 10 to 60 weight percent of water-based resin, 5 to 30 weight percent of biomass resin, 0.1 to 1 weight percent of solubilizer, 0.1 to 1 weight percent of cross-linking agent, 0.01 to 0.5 weight percent of foam control agent, 0.05 to 1 weight percent of sterilizing agent and 0.1 to 2 weight percent of thickening agent. The water-based bio-based high-moisture-permeability textile coating adhesive can be applied to a coating after-finishing production process of various leisure and sportswear fabrics, a biodegradable waterproof moisture-permeable coating with excellent moisture permeability is obtained, and meanwhile, a natural bio-based material is used for partially replacing a petrochemical raw material to synthesize a high polymer material, so that the water-based bio-based high-moisture-permeability textile coating adhesive has the advantages of environmental protection and environmental protection. The method has the effects of environmental protection, energy conservation and emission reduction.

Description

Technical Field

[0001] The invention relates to the technical field of new chemical materials, in particular to a water-based bio-based high moisture permeability textile coating adhesive and a preparation method thereof. Background Art

[0002] Biobased content is a measure of how much of a product's ingredients come from biomass resources, and biobased carbon content is one way to express biobased content. Biobased carbon content refers to the mass percentage of biobased carbon in total organic carbon, and is generally expressed in 14 C method is used to test the bio-based carbon content. The U.S. Department of Agriculture (USDA) defines bio-based materials as bio-based 14 The C content is not less than 25%. The higher the biobased content means the smaller the proportion of synthetic materials made from petrochemical raw materials, and the higher the biodegradability rate. How to increase the biobased content in biobased materials is one of the important topics in biobased material research.

[0003] At present, there are two main ways to prepare bio-based materials:

[0004] One is to use natural polymers (such as starch, rosin) or natural monomers (such as vegetable oil), but these natural polymers have different reactivity and need to be modified in various ways. Liu Qingzhao et al. used concentrated sulfuric acid to modify natural rosin to produce solvent-based bio-based wood coatings (patent application number: 202010411933.5). At present, there are few reports on such water-based coatings because most natural polymers have good hydrophilicity and water solubility.

[0005] The other is to use biomass raw materials to synthesize bio-based monomers and then synthesize bio-based polymers. Liu Chunfeng and others used bio-based furan-modified epoxy emulsion to prepare water-based bio-based self-healing coatings (patent application number 202010017421.0), Huang Jingzhu and others used epoxidized soybean oil to prepare solvent-based bio-based polyurethane coatings (patent application number 202110957744.2), Ma Anrong and others used castor oil to synthesize biomass resins, and then prepared bio-based powder coatings with excellent mechanical resistance and aging resistance (patent application number 202310813372.5). The disadvantages of this method are that the synthesis process is complicated, the yield is low, and the bio-based carbon content in the obtained polymer is low.

[0006] The moisture permeability of textile coatings is positively correlated with the hydrophilicity of film-forming polymers. To improve the moisture permeability of coatings, increasing the hydrophilic group content of coating polymers is a simple and easy means. Natural polymers such as starch, flour, chitosan, protein powder, etc. are rich in hydrophilic groups and are ideal materials for improving the moisture permeability of textile coatings. These natural polymers can be derived from various agricultural and fishery crops and their wastes, and can be naturally degraded to reduce harm to the environment. They are truly environmentally friendly and energy-saving materials. However, these natural polymers have strong water absorption, which will affect the waterproofness and washability of textile coatings, and have poor mechanical properties. Therefore, they need to be specially treated to improve their performance in this regard. Summary of the invention

[0007] The purpose of the present invention is to provide an aqueous bio-based high moisture permeability textile coating adhesive to solve the technical problems of low bio-based content, poor water washing resistance and poor mechanical properties of bio-based waterproof and moisture permeable textile coatings in the prior art. The present invention has the advantages of high bio-based content, water washing resistance, high moisture permeability, energy saving, environmental protection and simple preparation process.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] In a first aspect, the present invention provides an aqueous bio-based high moisture permeability textile coating adhesive. Based on the total mass of the raw material components of the coating adhesive, the aqueous bio-based high moisture permeability textile coating adhesive comprises the following raw material components and their weight percentages:

[0010] Water: 10-50wt%;

[0011] Water-based resin: 10-60wt%;

[0012] Biomass resin: 5-30wt%;

[0013] Solubilizer: 0.1-1wt%;

[0014] Crosslinking agent: 0.1-1wt%;

[0015] Foam control agent: 0.01-0.5wt%;

[0016] Bactericide: 0.05-1wt%;

[0017] Thickener: 0.1-2wt%;

[0018] Preferably, the water-based resin is one or more of commercially available water-based polyurethane resin products, water-based acrylic resins, water-based epoxy resins and other products. More preferably, the water-based polyurethane resin is a polyurethane resin system with water as the dispersion medium, including: polyurethane aqueous solution, polyurethane aqueous dispersion and polyurethane emulsion; more preferably, the grades of the water-based polyurethane resin are DLI, DL1116, SW3, PU125, ETERANE 89298. More preferably, the water-based acrylic resin is an aqueous solution or aqueous dispersion of acrylic resin, including: acrylic resin emulsion, acrylic resin aqueous dispersion and acrylic resin aqueous solution. More preferably, the water-based acrylic resin is an acrylic resin emulsion; more specifically, the grades of the acrylic resin emulsion are E2229S and E2710.

[0019] Preferably, the biomass resin is one or more of commercially available agricultural and fishery crops and their wastes processed industrial agricultural and sideline products, including lignin, starch, soybean powder, oleic acid, protein powder, chitosan, etc. More preferably, the biomass resin is one or two of chitosan, soybean powder, starch, and protein powder.

[0020] Preferably, the solubilizer is one of polyoxyethylene fatty alcohol, polyoxyethylene monolaurate, polyoxyethylene lauryl ether, polyoxyethylene monostearate, polyoxyethylene cetyl alcohol, polyethoxylated fatty alcohol, and polysorbate. More preferably, the solubilizer is polyoxyethylene monolaurate, with an acid value of ≤10 mgKOH / g and a saponification value of 140-150 mgKOH / g. More specifically, the model of the polyoxyethylene monolaurate solubilizer is DLE. The model of the polysorbate solubilizer is polysorbate 80.

[0021] Preferably, the crosslinking agent is one of carbodiimide, polyisocyanate aqueous dispersion, blocked isocyanate aqueous dispersion, etc. More specifically, the carbodiimide crosslinking agent is of model XR-5508, the blocked isocyanate aqueous dispersion is of model Imprafix 2794XP, and the polyisocyanate aqueous dispersion is of model EC-602.

[0022] Preferably, the foam control agent is one or two of mineral oils. More preferably, the mineral oil foam control agent is a complex composed of mineral oil, white oil, vegetable oil and other oils that are insoluble in the foaming medium as carriers and wax, aliphatic amide, fat, silica and the like as active agents. More specifically, the mineral oil foam control agent is selected from the models of NXZ, F111 and A238.

[0023] Preferably, the fungicide generally refers to a chemical agent that can effectively control or kill microorganisms in the water system, such as bacteria, fungi and algae, including: nisin, polylysine salts, etc. More specifically, the fungicide is Nisin, ε-polylysine hydrochloride.

[0024] Preferably, the thickener is one or two of the polyurethane associative thickeners. Preferably, the polyurethane associative thickener is a hydrophobically modified polyurethane water-soluble polymer. More specifically, the polyurethane associative thickener is selected from PUR 45 and RM2020.

[0025] In a second aspect, the present invention provides a method for preparing the aqueous bio-based high moisture permeability textile coating adhesive according to the first aspect, comprising the following process steps:

[0026] S1) adding biomass resin and solubilizer into water for dispersion to form a uniform dispersion;

[0027] S2) adding water-based resin and foam control agent;

[0028] S3) adding a fungicide;

[0029] S4) adding a cross-linking agent;

[0030] S5) adding a thickener;

[0031] Preferably, in step S1), stirring is performed during dispersion. Preferably, the stirring rate is 1000-2000 rpm. Preferably, the biomass resin and the solubilizer are completely dispersed to form a uniform dispersion.

[0032] Preferably, in step S2), the aqueous resin is added first, and then the foam control agent is added.

[0033] Preferably, in steps S3), S4), and S5), a bactericide, a cross-linking agent, and a thickener are added in sequence under stirring conditions. Preferably, the stirring rate is 500-1000 rpm so that the thickener, the bactericide, and the cross-linking agent can be evenly dispersed.

[0034] The present invention adds a solubilizing agent to form a uniform dispersion of biomass resin in water, thereby improving the compatibility of biomass resin and water-based resin, thereby preparing a bio-based high-moisture-permeable textile coating adhesive with stable storage and uniform film formation.

[0035] In a third aspect, the present invention provides a fabric with a coating, which is usually used as a fabric for making leisure and sportswear. The coating of the fabric contains the water-based bio-based high moisture permeability textile coating adhesive as described in the first aspect.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] (1) The preparation method of the present invention is simple and easy, the raw materials are easily available, the cost is low, and it can be prepared conveniently and accurately. It has the advantages of being non-toxic, harmless, energy-saving, and environmentally friendly, and it is easier to achieve large-scale production operations.

[0038] (2) The water-based bio-based high moisture permeability textile coating adhesive of the present invention can be applied to the production process of coating finishing of outdoor sports and leisure clothing fabrics to obtain a biodegradable, highly moisture permeable waterproof and moisture permeable coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a SEM photo of the 75D polyester coated with the water-based bio-based high moisture permeability textile coating adhesive of the present invention;

[0040] Figure 2 This is a graph showing the relationship between the bio-based C content and the moisture permeability of the embodiments provided by the present invention. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0043] Before further describing the specific embodiments of the present invention, it should be understood that the scope of protection of the present invention is not limited to the specific embodiments described below; it should also be understood that the terms used in the examples of the present invention are intended to describe specific embodiments, rather than to limit the scope of protection of the present invention. The test methods in the following examples without specifying specific conditions are generally carried out under conventional conditions or under conditions recommended by the manufacturers.

[0044] When the embodiments give numerical ranges, it should be understood that, unless otherwise specified in the present invention, both endpoints of each numerical range and any numerical value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present invention have the same meaning as those generally understood by those skilled in the art. In addition to the specific methods, equipment, and materials used in the embodiments, according to the grasp of the prior art by those skilled in the art and the record of the present invention, any methods, equipment, and materials of the prior art similar or equivalent to the methods, equipment, and materials described in the embodiments of the present invention can also be used to realize the present invention.

[0045] Please refer to Figure 1 , Figure 2 .

[0046] Example 1

[0047] This embodiment discloses an aqueous bio-based high moisture permeability textile coating adhesive. Based on the total mass of the raw material components of the aqueous bio-based high moisture permeability textile coating adhesive, the aqueous bio-based high moisture permeability textile coating adhesive includes the following raw material components and their weight percentages:

[0048] Water: 48wt%;

[0049] Waterborne polyurethane resin: 35wt%;

[0050] Biomass resin: 15wt%;

[0051] Solubilizer: 0.5wt%;

[0052] Crosslinking agent: 0.4wt%;

[0053] Foam control agent: 0.1wt%;

[0054] Bactericide: 0.5wt%;

[0055] Thickener: 0.5wt%;

[0056] In this embodiment, the waterborne polyurethane resin is a waterborne polyurethane dispersion. The waterborne polyurethane dispersion is selected from DLI and DL 1116 (in a ratio of 1:1).

[0057] The biomass resin is chitosan. The chitosan is a general name for the product of chitosan N-deacetylation. The chitosan model is selected as commercially available industrial-grade chitosan, and the deacetylation degree is not less than 85%.

[0058] The solubilizing agent is polyoxyethylene monolaurate, with an acid value of ≤10 mgKOH / g and a saponification value of 140-150 mgKOH / g. The model of the polyoxyethylene monolaurate solubilizing agent is DLE.

[0059] The foam control agent is a mineral oil foam control agent. The mineral oil foam control agent is a complex composed of mineral oil, white oil, vegetable oil and other oils that are insoluble in the foaming medium as carriers and wax, aliphatic amide, fat, silica and the like as active agents. The mineral oil foam control agent is A238.

[0060] The bactericide is nisin, and the model of the bactericide is Nisin.

[0061] The crosslinking agent is a blocked isocyanate aqueous dispersion, and the model of the crosslinking agent is Imprafix 2794XP.

[0062] The thickener is an associative thickener, and the model of the associative thickener is PUR 45.

[0063] The method for preparing the above-mentioned water-based bio-based high moisture permeability textile coating adhesive comprises the following steps:

[0064] S1) adding a solubilizing agent and a biomass resin into water and dispersing them to form a uniform dispersion;

[0065] S2) adding waterborne polyurethane resin and foam control agent;

[0066] S3) adding a fungicide;

[0067] S4) adding a cross-linking agent;

[0068] S5) adding a thickener and mixing uniformly to obtain a water-based bio-based high moisture permeability textile coating adhesive.

[0069] In step S1), at room temperature, a solubilizing agent is first added and stirred, and then the biomass resin is added. In step S1), the stirring rate during dispersion is 1000-1500 rpm, until a uniform dispersion is formed.

[0070] In step S2), waterborne polyurethane resin is added first, and then a foam control agent is added.

[0071] In steps S3), S4), and S5), a bactericide, a cross-linking agent, and a thickener are added in sequence under stirring conditions at a stirring rate of 800-1000 rpm so that the thickener, the bactericide, and the cross-linking agent can be evenly dispersed.

[0072] The aqueous bio-based high moisture permeability textile coating adhesive obtained in this embodiment 14 C isotope test shows that the bio-based C content is 43.8%; the coating adhesive is applied on 75D polyester at a coating rate of 30m / min and a setting temperature of 155°C. The moisture permeability is measured by JIS L1099 Method A-1 method and is 11054g / m 2 / 24h.

[0073] Example 2

[0074] This embodiment discloses an aqueous bio-based high moisture permeability textile coating adhesive. Based on the total mass of the raw material components of the aqueous bio-based high moisture permeability textile coating adhesive, the aqueous bio-based high moisture permeability textile coating adhesive includes the following raw material components and their weight percentages:

[0075] Water: 40wt%;

[0076] Waterborne polyurethane resin: 40wt%;

[0077] Biomass resin: 17wt%;

[0078] Solubilizer: 0.3wt%;

[0079] Cross-linking agent: 0.5wt%;

[0080] Foam control agent: 0.1wt%;

[0081] Bactericide: 0.6wt%;

[0082] Thickener: 1.5wt%;

[0083] In this embodiment, the waterborne polyurethane resin is a waterborne polyurethane dispersion. The waterborne polyurethane dispersion is selected from SW3 and DLI (in a ratio of 1:2).

[0084] The biomass resin is starch. The starch is a polysaccharide formed by the polymerization of glucose molecules. The starch is commercially available corn starch.

[0085] The solubilizing agent is polysorbate, and the model of the polysorbate solubilizing agent is polysorbate 80.

[0086] The foam control agent is a mineral oil foam control agent. The mineral oil foam control agent is a complex composed of mineral oil, white oil, vegetable oil and other oils that are insoluble in the foaming medium as carriers and wax, aliphatic amide, fat, silica and the like as active agents. The model of the mineral oil foam control agent is NXZ.

[0087] The bactericides are isothiazolinone bactericides and polylysine hydrochloride. The models of the bactericides are Nissin and ε-polylysine hydrochloride, and the ratio of the two is 1:1.

[0088] The cross-linking agent is carbodiimide, and the model of the cross-linking agent is XR-5508.

[0089] The thickener is an associative thickener, and the model of the associative thickener is RM2020.

[0090] The method for preparing the above-mentioned water-based bio-based high moisture permeability textile coating adhesive comprises the following steps:

[0091] S1) adding a solubilizing agent and a biomass resin into water and dispersing them to form a uniform dispersion;

[0092] S2) adding waterborne polyurethane resin and foam control agent;

[0093] S3) adding a fungicide;

[0094] S4) adding a cross-linking agent;

[0095] S5) adding a thickener;

[0096] In step S1), at room temperature, a solubilizing agent is first added and stirred, and then the biomass resin is added. In step S1), the stirring rate during dispersion is 1000-1500 rpm, until a uniform dispersion is formed.

[0097] In step S2), waterborne polyurethane resin is added first, and then a foam control agent is added.

[0098] In steps S3), S4), and S5), a bactericide, a cross-linking agent, and a thickener are added in sequence under stirring conditions at a stirring rate of 800-1000 rpm so that the thickener, the bactericide, and the cross-linking agent can be evenly dispersed.

[0099] The aqueous bio-based high moisture permeability textile coating adhesive obtained in this embodiment 14 C isotope test shows that the bio-based C content is 39.3%; the coating adhesive is applied on 75D polyester at a coating rate of 30m / min and a setting temperature of 120°C. The moisture permeability is measured by JIS L1099 Method A-1 method and is 10550g / m 2 / 24h.

[0100] Example 3

[0101] This embodiment discloses an aqueous bio-based high moisture permeability textile coating adhesive. Based on the total mass of the raw material components of the aqueous bio-based high moisture permeability textile coating adhesive, the aqueous bio-based high moisture permeability textile coating adhesive includes the following raw material components and their weight percentages:

[0102] Water: 39.3wt%;

[0103] Waterborne polyurethane resin: 38wt%;

[0104] Biomass resin: 20wt%;

[0105] Solubilizer: 0.5wt%;

[0106] Crosslinking agent: 0.8wt%;

[0107] Foam control agent: 0.3wt%;

[0108] Bactericide: 0.8wt%;

[0109] Thickener: 0.3wt%;

[0110] In this embodiment, the waterborne polyurethane resin is a waterborne polyurethane dispersion and a waterborne acrylic resin. The waterborne polyurethane dispersion is ETERANE 89298, and the waterborne acrylic resin is E2229S, and the ratio of the two resins is 3:1.

[0111] The biomass resin is soybean powder, which is obtained by drying and crushing soybean meal, a byproduct of soybean oil extraction from soybeans, which is commercially available.

[0112] The solubilizing agent is polyoxyethylene monolaurate, and the model of the polyoxyethylene monolaurate solubilizing agent is DLE.

[0113] The foam control agent is a mineral oil foam control agent, and the model of the mineral oil foam control agent is NXZ.

[0114] The bactericide is polylysine hydrochloride, and the model of the bactericide is Nisin.

[0115] The crosslinking agent is a polyisocyanate aqueous dispersion, and the model of the crosslinking agent is EC-602.

[0116] The thickener is an associative thickener. The model of the associative thickener is PUR 45.

[0117] The method for preparing the above-mentioned water-based bio-based high moisture permeability textile coating adhesive comprises the following steps:

[0118] S1) adding a solubilizing agent and a biomass resin into water and dispersing them to form a uniform dispersion;

[0119] S2) adding waterborne polyurethane resin and foam control agent;

[0120] S3) adding a fungicide;

[0121] S4) adding a cross-linking agent;

[0122] S5) adding a thickener;

[0123] In step S1), at room temperature, a solubilizing agent is first added to water for stirring, and then the biomass resin is added. In step 1), the stirring rate during dispersion is 1000-1500 rpm until a uniform dispersion is formed.

[0124] In step S2), water-based polyurethane resin and water-based acrylic resin are first added, and then a foam control agent is added.

[0125] In steps S3), S4), and S5), a bactericide, a cross-linking agent, and a thickener are added in sequence under stirring conditions at a stirring rate of 800-1000 rpm so that the thickener, the bactericide, and the cross-linking agent can be evenly dispersed.

[0126] The aqueous bio-based high moisture permeability textile coating adhesive obtained in this embodiment 14C isotope test shows that the bio-based C content is 47.9%; the coating adhesive is applied on 75D polyester at a coating rate of 30m / min and a setting temperature of 120°C. The moisture permeability is measured by JIS L1099 Method A-1 method and is 12136g / m 2 / 24h.

[0127] Example 4

[0128] This embodiment discloses an aqueous bio-based high moisture permeability textile coating adhesive. Based on the total mass of the raw material components of the aqueous bio-based high moisture permeability textile coating adhesive, the aqueous bio-based high moisture permeability textile coating adhesive includes the following raw material components and their weight percentages:

[0129] Water: 36.2wt%;

[0130] Water-based resin: 40wt%;

[0131] Biomass resin: 20wt%;

[0132] Solubilizer: 0.6wt%;

[0133] Crosslinking agent: 1.0wt%;

[0134] Foam control agent: 0.2wt%;

[0135] Bactericide: 0.8wt%;

[0136] Thickener: 1.2wt%;

[0137] In this embodiment, the water-based resin is water-based polyurethane resin and water-based acrylic emulsion. The water-based polyurethane dispersion model is PU125, and the water-based acrylic emulsion model is E2710, and the ratio of the two resins is 4:1.

[0138] The biomass resin is protein powder, which is commercially available purified soybean protein with a protein content of ≥50%.

[0139] The solubilizing agent is polyoxyethylene monolaurate, and the model of the polyoxyethylene monolaurate solubilizing agent is DLE.

[0140] The foam control agent is a mineral oil foam control agent, and the model of the mineral oil foam control agent is F111.

[0141] The bactericide is nisin, and the model of the bactericide is Nisin.

[0142] The cross-linking agent is carbodiimide, and the model of the cross-linking agent is XR-5508.

[0143] The thickener is an associative thickener, and the model of the associative thickener is PUR 45.

[0144] The method for preparing the above-mentioned water-based bio-based high moisture permeability textile coating adhesive comprises the following steps:

[0145] S1) adding a solubilizing agent and a biomass resin into water and dispersing them to form a uniform dispersion;

[0146] S2) adding water-based resin and foam control agent;

[0147] S3) adding a fungicide;

[0148] S4) adding a cross-linking agent;

[0149] S5) adding a thickener;

[0150] In step S1), a solubilizer is added to water at room temperature and stirred, and then the biomass resin is added. In step S1), the stirring rate during dispersion is 1000-1500 rpm until a uniform dispersion is formed.

[0151] In step S2), water-based polyurethane resin and water-based acrylic resin are first added, and then a foam control agent is added.

[0152] In steps S3), S4), S5), and S6), a bactericide, a cross-linking agent, and a thickener are added in sequence under stirring conditions at a stirring rate of 800-1000 rpm so that the thickener, the bactericide, and the cross-linking agent can be evenly dispersed.

[0153] The aqueous bio-based high moisture permeability textile coating adhesive obtained in this embodiment 14 C isotope test shows that the bio-based C content is 41.8%; the coating adhesive is applied on 75D polyester at a coating rate of 30m / min and a setting temperature of 120°C. The moisture permeability is measured by JIS L1099 Method A-1 method and is 10975g / m 2 / 24h.

[0154] Example 5

[0155] This embodiment discloses an aqueous bio-based high moisture permeability textile coating adhesive. Based on the total mass of the raw material components of the aqueous bio-based high moisture permeability textile coating adhesive, the aqueous bio-based high moisture permeability textile coating adhesive includes the following raw material components and their weight percentages:

[0156] Water: 51.5wt%;

[0157] Water-based resin: 32wt%;

[0158] Biomass resin: 13wt%;

[0159] Solubilizer: 0.6wt%;

[0160] Cross-linking agent: 0.5wt%;

[0161] Foam control agent: 0.2wwt%;

[0162] Bactericide: 0.8wt%;

[0163] Thickener: 0.4wt%;

[0164] In this embodiment, the water-based resin is water-based polyurethane resin and water-based acrylic emulsion. The water-based polyurethane dispersion model is DLI, the water-based acrylic emulsion model is E2229S, and the ratio of the two resins is 3:1.

[0165] The biomass resins are commercially available soybean powder and protein powder, and the ratio of the two biomass resins is 2:1.

[0166] The solubilizing agent is polyoxyethylene monolaurate, and the model of the polyoxyethylene monolaurate solubilizing agent is DLE.

[0167] The foam control agent is a mineral oil foam control agent. The model of the polyether foam control agent is NXZ.

[0168] The bactericides are nisin and lysine hydrochloride, and the models of the bactericides are Nisin and ε-lysine hydrochloride, and the ratio of the three is 1:2.

[0169] The cross-linking agent is carbodiimide, and the model of the cross-linking agent is XR-5508.

[0170] The thickener is an associative thickener, and the model of the associative thickener is RM2020.

[0171] The method for preparing the above-mentioned water-based bio-based high moisture permeability textile coating adhesive comprises the following steps:

[0172] S1) adding a solubilizing agent and a biomass resin into water and dispersing them to form a uniform dispersion;

[0173] S2) adding water-based resin and foam control agent;

[0174] S3) adding a fungicide;

[0175] S4) adding a cross-linking agent;

[0176] S5) adding a thickener;

[0177] In step S1), a solubilizing agent is first added to water and stirred. Then the biomass resin is added. In step S1), the stirring rate during dispersion is 1000-1500 rpm until a uniform dispersion is formed.

[0178] In step S2), water-based polyurethane resin and water-based acrylic resin are first added, and then a foam control agent is added.

[0179] In steps S3), S4), S5), and S6), a bactericide, a cross-linking agent, and a thickener are added in sequence under stirring conditions at a stirring rate of 800-1000 rpm so that the thickener, the bactericide, and the cross-linking agent can be evenly dispersed.

[0180] The aqueous bio-based high moisture permeability textile coating adhesive obtained in this embodiment 14 C isotope test shows that the bio-based C content is 36.6%; the coating adhesive is applied on 75D polyester at a coating rate of 30m / min and a setting temperature of 120°C. The moisture permeability is measured by JIS L1099 Method A-1 method and is 10310g / m 2 / 24h.

[0181] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water-based bio-based high moisture permeability textile coating adhesive, characterized by: The coating adhesive includes the following raw material components and weight percentages: Water: 10-50wt%; Biomass resin: 5-30wt%; Water-based resin: 10-60wt%; Solubilizer: 0.1-1wt%; Crosslinking agent: 0.1-1wt%; Foam control agent: 0.01-0.5wt%; Bactericide: 0.05-1wt%; Thickener: 0.1-2wt%.

2. The water-based bio-based high moisture permeability textile coating adhesive according to claim 1, characterized in that: The biomass resin may be one or more of starch, soybean powder, protein powder and chitosan.

3. The water-based bio-based high moisture permeability textile coating adhesive according to claim 1, characterized in that: The water-based resin is one or both of water-based polyurethane dispersion (water-based PU) and water-based acrylic emulsion (water-based PA).

4. The water-based bio-based high moisture permeability textile coating adhesive according to claim 1, characterized in that: The solubilizer is one or more of polyoxyethylene fatty alcohol, polyoxyethylene monolaurate, polyoxyethylene lauryl ether, polyoxyethylene monostearate, polyoxyethylene cetyl alcohol, polyethoxylated fatty alcohol, and polysorbate.

5. The water-based bio-based high moisture permeability textile coating adhesive according to claim 1, characterized in that: The foam control agent is one or more of mineral oils and polyethers.

6. The water-based bio-based high moisture permeability textile coating adhesive according to claim 1, characterized in that: The thickener is one or two of polyurethane associative thickeners.

7. The water-based bio-based high moisture permeability textile coating adhesive according to claim 1, characterized in that: The crosslinking agent is one of polyisocyanate, blocked isocyanate aqueous dispersion and carbodiimide.

8. The water-based bio-based high moisture permeability textile coating adhesive according to claim 1, characterized in that: The bactericide is one or more of nisin and polylysine salt.

9. A method for preparing a water-based bio-based high moisture permeability textile coating adhesive, used for preparing the coating adhesive as claimed in claim 1, characterized in that: The steps include: S1) adding biomass resin and solubilizer into water and dispersing them to form a uniform dispersion; S2) adding water-based resin and foam control agent; S3) adding a fungicide; S4) adding a cross-linking agent; S5) adding a thickener.

10. A fabric having a coating, characterized in that: The coating of the fabric contains the coating glue as claimed in claim 1.

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