CN113119537A - Composite fabric and preparation method thereof - Google Patents

Composite fabric and preparation method thereof Download PDF

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Publication number
CN113119537A
CN113119537A CN202110448702.6A CN202110448702A CN113119537A CN 113119537 A CN113119537 A CN 113119537A CN 202110448702 A CN202110448702 A CN 202110448702A CN 113119537 A CN113119537 A CN 113119537A
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China
Prior art keywords
coating
parts
antibacterial
fabric
modified
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CN202110448702.6A
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Chinese (zh)
Inventor
范京京
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Alite Holdings Group Ltd
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Alite Holdings Group Ltd
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Priority to CN202110448702.6A priority Critical patent/CN113119537A/en
Publication of CN113119537A publication Critical patent/CN113119537A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0007—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality
    • B32B37/003—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality to avoid air inclusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0008—Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • B32B2037/243—Coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B32B2255/205—Metallic coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Quality & Reliability (AREA)
  • Plasma & Fusion (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention relates to the technical field of fabric preparation, and provides a composite fabric and a preparation method thereof in order to solve the problem that the existing composite fabric is poor in antibacterial performance and anti-fracture performance; the first composite layer and the second composite layer both comprise non-woven fabrics and modified coatings, and the modified coatings are uniformly coated on one sides of the non-woven fabrics; the other side of the non-woven fabric is evenly coated with an antibacterial coating. According to the invention, the modified coating and the antibacterial coating are respectively coated on the two sides of the non-woven fabric, and the antibacterial coating plays an antibacterial role and is also used as an adhesive layer to bond the two non-woven fabrics to prepare the composite fabric, so that the preparation efficiency is improved, the antibacterial effect is uniform and good, the composite fabric has excellent fracture resistance, and butanone is added in the preparation process to improve the adhesive property of the modified coating.

Description

Composite fabric and preparation method thereof
Technical Field
The invention relates to the technical field of fabric preparation, in particular to a composite fabric and a preparation method thereof.
Background
The composite fabric is a novel material formed by bonding and laminating one or more layers of textile materials, non-woven materials and other functional materials, and different composite materials are doped in the preparation process of the composite fabric in order to meet different use requirements of the fabric in the use and production process, so that the composite fabric has different performances. The existing composite fabric cannot meet the requirements of sanitation, safety and durability in use, and does not have antibacterial performance and anti-fracture performance, so that the composite fabric and the preparation method thereof are urgently needed to solve the technical problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a composite fabric and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a composite fabric comprises a first composite layer, an antibacterial layer and a second composite layer, wherein the antibacterial layer comprises an antibacterial coating; the first composite layer and the second composite layer both comprise non-woven fabrics and modified coatings, and the modified coatings are uniformly coated on one sides of the non-woven fabrics; the other side of the non-woven fabric is uniformly coated with an antibacterial coating; the modified coating comprises the following components in parts by weight: 12-25 parts of isocyanate, 0.1-0.5 part of dibutyltin dilaurate, 10-20 parts of polyether glycol, 3-7 parts of epoxy resin, 5-10 parts of amino-terminated polyether and 0.01-0.5 part of antioxidant; the antibacterial coating comprises the following components in percentage by weight: 0.5-1 wt% of nano silver particles, 10-18 wt% of carrier and 90-96 wt% of adhesive.
The preparation method of the modified coating comprises the following steps: weighing the components in parts by weight; mixing isocyanate, dibutyltin dilaurate and polyether diol at 65-78 ℃ for reaction for 1.5-2h under a nitrogen environment to obtain a mixture A; adding the epoxy resin, the amine-terminated polyether and the antioxidant into the mixture A, and shearing and mixing for 1-1.5h at the rotating speed of 2000-3000r/min to obtain the modified coating.
The preparation method of the antibacterial coating comprises the following steps: shearing and mixing the nano silver particles and the carrier at a high rotating speed for 1h, fully mixing and stirring the mixture of the nano silver particles and the carrier with the adhesive, and vacuumizing to eliminate air bubbles in the mixture to obtain the antibacterial coating.
The carrier is one or two of zirconium phosphate, apatite and zeolite.
The coating thickness of the modified coating is 0.06-1.0mm, and the coating thickness of the antibacterial coating is 0.08-1.2 mm.
The preparation method of the composite fabric comprises the following steps:
step 1: cleaning the non-woven fabric, sterilizing by irradiating under ultraviolet lamp for 0.5h, and drying;
step 2: uniformly coating a modified coating on one side of the non-woven fabric and airing;
and step 3: and uniformly coating the antibacterial coating on one side of the non-woven fabric far away from the modified coating, mutually jointing the two sides of the non-woven fabric coated with the antibacterial coatings, and performing hot-press forming to obtain the composite fabric.
The hot-press shaping method comprises the following steps: rolling, pressing and shaping by using a hot-pressing roller; then uniformly irradiating and drying by using a drying lamp; when the hot-pressing roller is used for rolling, pressing and shaping, negative pressure is pumped around the fabric.
Modified coating and antibacterial coating are paintd respectively in the both sides of non-woven fabrics, and the antibacterial coating still obtains compound surface fabric as the adhesive linkage preparation with two non-woven fabrics bonding preparation when playing antibiotic, improves preparation efficiency, and the bubble in the antibacterial coating preparation process is eliminated through the evacuation in the mixture at last, avoids having the bubble in the antibacterial coating and influences the coating effect, guarantees that antibacterial coating paints evenly, and antibacterial effect is even and good.
The modified coating is coated on two sides of the non-woven fabric, the modified coating is formed by crosslinking reaction of isocyanate, dibutyltin dilaurate, polyether diol, epoxy resin, amine-terminated polyether and an antioxidant, the dibutyltin dilaurate is used as a catalyst to improve polyurethane synthesis reaction of the isocyanate, and the dibutyltin dilaurate can also be used as a modifier to modify the polyurethane synthesized by the reaction, so that the breaking strength and the breaking elongation of the polyurethane are improved, deionized water is added in the preparation process, the modified coating is milky and convenient to coat, butanone is added in the preparation process, and the adhesive property of the modified coating is improved.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
The composite fabric is a novel material formed by bonding and laminating one or more layers of textile materials, non-woven materials and other functional materials, and different composite materials are doped in the preparation process of the composite fabric in order to meet different use requirements of the fabric in the use and production process, so that the composite fabric has different performances. The existing composite fabric can not meet the requirements of sanitation, safety and durability in use and has no antibacterial property and fracture resistance. In order to solve the technical problems, the invention provides a composite fabric which comprises a first composite layer, an antibacterial layer and a second composite layer, wherein the antibacterial layer comprises an antibacterial coating; the first composite layer and the second composite layer both comprise non-woven fabrics and modified coatings, and the modified coatings are uniformly coated on one sides of the non-woven fabrics; the other side of the non-woven fabric is uniformly coated with an antibacterial coating; the modified coating comprises the following components in parts by weight: 12-25 parts of isocyanate, 0.1-0.5 part of dibutyltin dilaurate, 10-20 parts of polyether glycol, 3-7 parts of epoxy resin, 5-10 parts of amino-terminated polyether, 0.01-0.5 part of antioxidant, 10-20 parts of deionized water and 1-4 parts of butanone; the antibacterial coating comprises the following components in percentage by weight: 0.5-1 wt% of nano silver particles, 10-18 wt% of carrier and 90-96 wt% of adhesive.
In the embodiment of the invention, the composite fabric comprises a first composite layer, an antibacterial layer and a second composite layer, wherein the antibacterial layer comprises an antibacterial coating; the first composite layer and the second composite layer both comprise non-woven fabrics and modified coatings, and the modified coatings are uniformly coated on one sides of the non-woven fabrics; the other side of the non-woven fabric is uniformly coated with an antibacterial coating; the modified coating comprises the following components in parts by weight: 12-25 parts of isocyanate, 0.1-0.5 part of dibutyltin dilaurate, 10-20 parts of polyether glycol, 3-7 parts of epoxy resin, 5-10 parts of amino-terminated polyether, 0.01-0.5 part of antioxidant, 10-20 parts of deionized water and 1-4 parts of butanone; the antibacterial coating comprises the following components in percentage by weight: 0.5-1 wt% of nano silver particles, 10-18 wt% of carrier and 90-96 wt% of adhesive.
According to the invention, the modified coating and the antibacterial coating are respectively coated on the two sides of the non-woven fabric, the antibacterial coating plays an antibacterial role and is also used as an adhesive layer to bond the two non-woven fabrics to prepare the composite fabric, the preparation efficiency is improved, bubbles in the mixture are eliminated by vacuumizing in the preparation process of the antibacterial coating, the coating effect is prevented from being influenced by the bubbles in the antibacterial coating, the antibacterial coating is uniformly coated, and the antibacterial effect is uniform and good.
According to the invention, the modified coating is coated on two sides of the non-woven fabric, the modified coating is formed by crosslinking reaction of isocyanate, dibutyltin dilaurate, polyether diol, epoxy resin, amine-terminated polyether and an antioxidant, the dibutyltin dilaurate is used as a catalyst to improve polyurethane synthesis reaction of the isocyanate, and the dibutyltin dilaurate can also be used as a modifier to modify the polyurethane synthesized by reaction, so that the breaking strength and the breaking elongation of the polyurethane are improved, and deionized water is added in the preparation process to enable the modified coating to be milky and convenient to coat, butanone is added in the preparation process, so that the adhesive property of the modified coating is improved.
The technical effects of the composite fabric and the preparation method thereof of the present invention are further described below with reference to specific examples, but the specific implementation methods mentioned in these examples are only illustrative and explanatory of the technical solution of the present invention, and do not limit the implementation scope of the present invention, and all modifications and substitutions based on the above principles of the present invention should be within the protection scope of the present invention.
Example 1
Weighing the following components in parts by weight: 12 parts of isocyanate, 0.1 part of dibutyltin dilaurate, 10 parts of polyether glycol, 3 parts of epoxy resin, 5 parts of amino-terminated polyether, 0.01 part of antioxidant, 10 parts of deionized water and 1 part of butanone; mixing isocyanate, dibutyltin dilaurate and polyether diol at 65 ℃ for reaction for 1.5h in a nitrogen environment to obtain a mixture A; adding epoxy resin, amino-terminated polyether, antioxidant, deionized water and butanone into the mixture A, and shearing and mixing at the rotating speed of 2000r/min for 1h to obtain a modified coating;
weighing the following components in parts by weight: 0.5 wt% of nano silver particles, 10 wt% of zeolite and 90 wt% of adhesive; shearing and mixing the nano silver particles and the zeolite at a high rotating speed for 1h, fully mixing and stirring the mixture of the nano silver particles and the zeolite with an adhesive, and vacuumizing to eliminate bubbles in the mixture to obtain an antibacterial coating;
cleaning the non-woven fabric, sterilizing by irradiating under ultraviolet lamp for 0.5h, and drying; uniformly coating a modified coating on one side of the non-woven fabric and drying, wherein the coating thickness of the modified coating is 0.06 mm; uniformly coating an antibacterial coating on one side of the non-woven fabric away from the modified coating, wherein the coating thickness of the antibacterial coating is 0.08mm, mutually bonding the two sides of the non-woven fabric coated with the antibacterial coating, firstly, rolling and pressing by using a hot-pressing roller, and when rolling and pressing by using the hot-pressing roller for shaping, performing negative pressure pumping on the periphery of the fabric; and uniformly irradiating and drying by using a drying lamp to obtain the composite fabric.
Example 2
Weighing the following components in parts by weight: 13 parts of isocyanate, 0.2 part of dibutyltin dilaurate, 11 parts of polyether glycol, 4 parts of epoxy resin, 6 parts of amine-terminated polyether, 0.02 part of antioxidant, 12 parts of deionized water and 1.5 parts of butanone; mixing isocyanate, dibutyltin dilaurate and polyether diol at 65 ℃ for reaction for 1.5h in a nitrogen environment to obtain a mixture A; adding epoxy resin, amino-terminated polyether, antioxidant, deionized water and butanone into the mixture A, and shearing and mixing at the rotating speed of 2000r/min for 1h to obtain a modified coating;
according to the following steps of 1: 2, weighing zeolite and zirconium phosphate according to the proportion, and mixing to obtain a carrier;
weighing the following components in parts by weight: 0.5 wt% of nano silver particles, 10 wt% of carrier and 90 wt% of adhesive; shearing and mixing the nano silver particles and the carrier at a high rotating speed for 1h, fully mixing and stirring the mixture of the nano silver particles and the carrier with the adhesive, and vacuumizing to eliminate bubbles in the mixture to obtain the antibacterial coating;
cleaning the non-woven fabric, sterilizing by irradiating under ultraviolet lamp for 0.5h, and drying; uniformly coating a modified coating on one side of the non-woven fabric and drying, wherein the coating thickness of the modified coating is 0.06 mm; uniformly coating an antibacterial coating on one side of the non-woven fabric away from the modified coating, wherein the coating thickness of the antibacterial coating is 0.08mm, mutually bonding the two sides of the non-woven fabric coated with the antibacterial coating, firstly, rolling and pressing by using a hot-pressing roller, and when rolling and pressing by using the hot-pressing roller for shaping, performing negative pressure pumping on the periphery of the fabric; and uniformly irradiating and drying by using a drying lamp to obtain the composite fabric.
Example 3
Weighing the following components in parts by weight: 12 parts of isocyanate, 0.1 part of dibutyltin dilaurate, 10 parts of polyether glycol, 3 parts of epoxy resin, 5 parts of amino-terminated polyether, 0.01 part of antioxidant, 10 parts of deionized water and 1 part of butanone; mixing isocyanate, dibutyltin dilaurate and polyether diol at 65 ℃ for reaction for 1.5h in a nitrogen environment to obtain a mixture A; adding epoxy resin, amino-terminated polyether, antioxidant, deionized water and butanone into the mixture A, and shearing and mixing at the rotating speed of 2000r/min for 1h to obtain a modified coating;
weighing the following components in parts by weight: 0.75 wt% of nano silver particles, 14 wt% of zeolite and 93 wt% of adhesive; shearing and mixing the nano silver particles and the zeolite at a high rotating speed for 1h, fully mixing and stirring the mixture of the nano silver particles and the zeolite with an adhesive, and vacuumizing to eliminate bubbles in the mixture to obtain an antibacterial coating;
cleaning the non-woven fabric, sterilizing by irradiating under ultraviolet lamp for 0.5h, and drying; uniformly coating a modified coating on one side of the non-woven fabric and drying, wherein the coating thickness of the modified coating is 0.06 mm; uniformly coating an antibacterial coating on one side of the non-woven fabric away from the modified coating, wherein the coating thickness of the antibacterial coating is 0.08mm, mutually bonding the two sides of the non-woven fabric coated with the antibacterial coating, firstly, rolling and pressing by using a hot-pressing roller, and when rolling and pressing by using the hot-pressing roller for shaping, performing negative pressure pumping on the periphery of the fabric; and uniformly irradiating and drying by using a drying lamp to obtain the composite fabric.
Example 4
Weighing the following components in parts by weight: 24 parts of isocyanate, 0.4 part of dibutyltin dilaurate, 18 parts of polyether glycol, 6 parts of epoxy resin, 9 parts of amino-terminated polyether, 0.4 part of antioxidant, 18 parts of deionized water and 3.5 parts of butanone; mixing isocyanate, dibutyltin dilaurate and polyether diol at 78 ℃ for reaction for 2h in a nitrogen environment to obtain a mixture A; adding epoxy resin, amino-terminated polyether, antioxidant, deionized water and butanone into the mixture A, and shearing and mixing at the rotating speed of 3000r/min for 1.5h to obtain a modified coating;
weighing the following components in parts by weight: 1 wt% of nano silver particles, 18 wt% of zeolite and 96 wt% of adhesive; shearing and mixing the nano silver particles and the zeolite at a high rotating speed for 1h, fully mixing and stirring the mixture of the nano silver particles and the zeolite with an adhesive, and vacuumizing to eliminate bubbles in the mixture to obtain an antibacterial coating;
cleaning the non-woven fabric, sterilizing by irradiating under ultraviolet lamp for 0.5h, and drying; uniformly coating a modified coating on one side of the non-woven fabric and drying, wherein the coating thickness of the modified coating is 1.0 mm; uniformly coating an antibacterial coating on one side of the non-woven fabric away from the modified coating, wherein the coating thickness of the antibacterial coating is 1.2mm, mutually bonding the two sides of the non-woven fabric coated with the antibacterial coating, firstly, rolling and pressing by using a hot-pressing roller, and when rolling and pressing by using the hot-pressing roller for shaping, performing negative pressure pumping on the periphery of the fabric; and uniformly irradiating and drying by using a drying lamp to obtain the composite fabric.
Example 5
Weighing the following components in parts by weight: 25 parts of isocyanate, 0.5 part of dibutyltin dilaurate, 20 parts of polyether glycol, 7 parts of epoxy resin, 10 parts of amino-terminated polyether, 0.5 part of antioxidant, 20 parts of deionized water and 4 parts of butanone; mixing isocyanate, dibutyltin dilaurate and polyether diol at 78 ℃ for reaction for 2h in a nitrogen environment to obtain a mixture A; adding epoxy resin, amino-terminated polyether, antioxidant, deionized water and butanone into the mixture A, and shearing and mixing at the rotating speed of 3000r/min for 1.5h to obtain a modified coating;
weighing the following components in parts by weight: 1 wt% of nano silver particles, 18 wt% of zeolite and 96 wt% of adhesive; shearing and mixing the nano silver particles and the zeolite at a high rotating speed for 1h, fully mixing and stirring the mixture of the nano silver particles and the zeolite with an adhesive, and vacuumizing to eliminate bubbles in the mixture to obtain an antibacterial coating;
cleaning the non-woven fabric, sterilizing by irradiating under ultraviolet lamp for 0.5h, and drying; uniformly coating a modified coating on one side of the non-woven fabric and drying, wherein the coating thickness of the modified coating is 1.0 mm; uniformly coating an antibacterial coating on one side of the non-woven fabric away from the modified coating, wherein the coating thickness of the antibacterial coating is 1.2mm, mutually bonding the two sides of the non-woven fabric coated with the antibacterial coating, firstly, rolling and pressing by using a hot-pressing roller, and when rolling and pressing by using the hot-pressing roller for shaping, performing negative pressure pumping on the periphery of the fabric; and uniformly irradiating and drying by using a drying lamp to obtain the composite fabric.
Cutting out circular composite fabric samples with the same diameter from the composite fabrics prepared in the embodiments 1-5 of the invention, applying pressure to the circle center of the fabric sample and detecting the pressure value when the fabric sample is broken, namely the breaking strength of the composite fabric; measuring the elongation size of the sample fabric after the sample fabric is broken, thereby obtaining the breaking elongation; and the antibacterial property of the sample fabric is tested. And selecting a common composite fabric on the market as a control group, detecting the breaking strength and the breaking elongation of the existing composite fabric according to the same detection method, and carrying out antibacterial property test.
And (3) antibacterial property test: the percent reduction of the test bacteria in E.coli (ATCCNO.8099) was tested with reference to AATCC 100.
And the test results are shown in table 1:
table 1
Figure BDA0003037794370000091
In summary, it can be seen from table 1 that the breaking strength, elongation at break and antibacterial performance of the composite fabrics prepared by the embodiments 1-5 of the present invention are all significantly better than those of the existing composite fabrics of the control group. The composite fabric prepared in example 4 has the best breaking strength, and discloses: weighing the following components in parts by weight: 24 parts of isocyanate, 0.4 part of dibutyltin dilaurate, 18 parts of polyether glycol, 6 parts of epoxy resin, 9 parts of amino-terminated polyether, 0.4 part of antioxidant, 18 parts of deionized water and 3.5 parts of butanone; mixing isocyanate, dibutyltin dilaurate and polyether diol at 78 ℃ for reaction for 2h in a nitrogen environment to obtain a mixture A; adding epoxy resin, amino-terminated polyether, antioxidant, deionized water and butanone into the mixture A, and shearing and mixing at the rotating speed of 3000r/min for 1.5h to obtain a modified coating; weighing the following components in parts by weight: 1 wt% of nano silver particles, 18 wt% of zeolite and 96 wt% of adhesive; shearing and mixing the nano silver particles and the zeolite at a high rotating speed for 1h, fully mixing and stirring the mixture of the nano silver particles and the zeolite with an adhesive, and vacuumizing to eliminate bubbles in the mixture to obtain an antibacterial coating; cleaning the non-woven fabric, sterilizing by irradiating under ultraviolet lamp for 0.5h, and drying; uniformly coating a modified coating on one side of the non-woven fabric and drying, wherein the coating thickness of the modified coating is 1.0 mm; uniformly coating an antibacterial coating on one side of the non-woven fabric away from the modified coating, wherein the coating thickness of the antibacterial coating is 1.2mm, mutually bonding the two sides of the non-woven fabric coated with the antibacterial coating, firstly, rolling and pressing by using a hot-pressing roller, and when rolling and pressing by using the hot-pressing roller for shaping, performing negative pressure pumping on the periphery of the fabric; uniformly irradiating and drying by using a drying lamp to obtain a composite fabric; example 5 the elongation at break of the resulting composite fabric is optimal, disclosing: weighing the following components in parts by weight: 25 parts of isocyanate, 0.5 part of dibutyltin dilaurate, 20 parts of polyether glycol, 7 parts of epoxy resin, 10 parts of amino-terminated polyether, 0.5 part of antioxidant, 20 parts of deionized water and 4 parts of butanone; mixing isocyanate, dibutyltin dilaurate and polyether diol at 78 ℃ for reaction for 2h in a nitrogen environment to obtain a mixture A; adding epoxy resin, amino-terminated polyether, antioxidant, deionized water and butanone into the mixture A, and shearing and mixing at the rotating speed of 3000r/min for 1.5h to obtain a modified coating; weighing the following components in parts by weight: 1 wt% of nano silver particles, 18 wt% of zeolite and 96 wt% of adhesive; shearing and mixing the nano silver particles and the zeolite at a high rotating speed for 1h, fully mixing and stirring the mixture of the nano silver particles and the zeolite with an adhesive, and vacuumizing to eliminate bubbles in the mixture to obtain an antibacterial coating; cleaning the non-woven fabric, sterilizing by irradiating under ultraviolet lamp for 0.5h, and drying; uniformly coating a modified coating on one side of the non-woven fabric and drying, wherein the coating thickness of the modified coating is 1.0 mm; uniformly coating an antibacterial coating on one side of the non-woven fabric away from the modified coating, wherein the coating thickness of the antibacterial coating is 1.2mm, mutually bonding the two sides of the non-woven fabric coated with the antibacterial coating, firstly, rolling and pressing by using a hot-pressing roller, and when rolling and pressing by using the hot-pressing roller for shaping, performing negative pressure pumping on the periphery of the fabric; and uniformly irradiating and drying by using a drying lamp to obtain the composite fabric.
Further, the invention also makes systematic research on the process conditions in the composite fabric, and only the following test scheme for remarkably influencing the effect of the composite fabric by changing the process conditions is explained, and the process conditions of the embodiment 5 are taken as the basis, and the specific results are shown in comparative examples 1-5:
comparative example 1
Weighing the following components in parts by weight: 25 parts of isocyanate, 0.5 part of dibutyltin dilaurate, 20 parts of polyether glycol, 7 parts of epoxy resin, 10 parts of amino-terminated polyether, 0.5 part of antioxidant, 20 parts of deionized water and 4 parts of butanone; mixing isocyanate, dibutyltin dilaurate and polyether diol at 78 ℃ for reaction for 2h in a nitrogen environment to obtain a mixture A; adding epoxy resin, amino-terminated polyether, antioxidant, deionized water and butanone into the mixture A, and shearing and mixing at the rotating speed of 3000r/min for 1.5h to obtain a modified coating;
weighing 1 wt% of nano silver particles and 99 wt% of adhesive as an antibacterial coating;
cleaning the non-woven fabric, sterilizing by irradiating under ultraviolet lamp for 0.5h, and drying; uniformly coating a modified coating on one side of the non-woven fabric and drying, wherein the coating thickness of the modified coating is 1.0 mm; uniformly coating an antibacterial coating on one side of the non-woven fabric away from the modified coating, wherein the coating thickness of the antibacterial coating is 1.2mm, mutually bonding the two sides of the non-woven fabric coated with the antibacterial coating, firstly, rolling and pressing by using a hot-pressing roller, and when rolling and pressing by using the hot-pressing roller for shaping, performing negative pressure pumping on the periphery of the fabric; and uniformly irradiating and drying by using a drying lamp to obtain the composite fabric.
Comparative example 2
Weighing the following components in parts by weight: 25 parts of isocyanate, 20 parts of polyether glycol, 7 parts of epoxy resin, 10 parts of amino-terminated polyether, 0.5 part of antioxidant and 20 parts of deionized water; mixing isocyanate and polyether diol at 78 ℃ for 2h under a nitrogen environment to obtain a mixture A; adding epoxy resin, amine-terminated polyether, antioxidant and deionized water into the mixture A, and shearing and mixing at the rotating speed of 3000r/min for 1.5h to obtain a modified coating;
weighing the following components in parts by weight: 1 wt% of nano silver particles, 18 wt% of zeolite and 96 wt% of adhesive; shearing and mixing the nano silver particles and the zeolite at a high rotating speed for 1h, fully mixing and stirring the mixture of the nano silver particles and the zeolite with an adhesive, and vacuumizing to eliminate bubbles in the mixture to obtain an antibacterial coating;
cleaning the non-woven fabric, sterilizing by irradiating under ultraviolet lamp for 0.5h, and drying; uniformly coating a modified coating on one side of the non-woven fabric and drying, wherein the coating thickness of the modified coating is 1.0 mm; uniformly coating an antibacterial coating on one side of the non-woven fabric away from the modified coating, wherein the coating thickness of the antibacterial coating is 1.2mm, mutually bonding the two sides of the non-woven fabric coated with the antibacterial coating, firstly, rolling and pressing by using a hot-pressing roller, and when rolling and pressing by using the hot-pressing roller for shaping, performing negative pressure pumping on the periphery of the fabric; and uniformly irradiating and drying by using a drying lamp to obtain the composite fabric.
Comparative example 3
Weighing the following components in parts by weight: 25 parts of isocyanate, 20 parts of polyether glycol, 7 parts of epoxy resin, 10 parts of amino-terminated polyether, 0.5 part of antioxidant, 20 parts of deionized water and 4 parts of butanone; mixing isocyanate and polyether diol at 78 ℃ for 2h under a nitrogen environment to obtain a mixture A; adding epoxy resin, amino-terminated polyether, antioxidant, deionized water and butanone into the mixture A, and shearing and mixing at the rotating speed of 3000r/min for 1.5h to obtain a modified coating;
weighing the following components in parts by weight: 1 wt% of nano silver particles, 18 wt% of zeolite and 96 wt% of adhesive; shearing and mixing the nano silver particles and the zeolite at a high rotating speed for 1h, fully mixing and stirring the mixture of the nano silver particles and the zeolite with an adhesive, and vacuumizing to eliminate bubbles in the mixture to obtain an antibacterial coating;
cleaning the non-woven fabric, sterilizing by irradiating under ultraviolet lamp for 0.5h, and drying; uniformly coating a modified coating on one side of the non-woven fabric and drying, wherein the coating thickness of the modified coating is 1.0 mm; uniformly coating an antibacterial coating on one side of the non-woven fabric away from the modified coating, wherein the coating thickness of the antibacterial coating is 1.2mm, mutually bonding the two sides of the non-woven fabric coated with the antibacterial coating, firstly, rolling and pressing by using a hot-pressing roller, and when rolling and pressing by using the hot-pressing roller for shaping, performing negative pressure pumping on the periphery of the fabric; and uniformly irradiating and drying by using a drying lamp to obtain the composite fabric.
Comparative example 4
Weighing the following components in parts by weight: 25 parts of isocyanate, 0.5 part of dibutyltin dilaurate, 20 parts of polyether glycol, 7 parts of epoxy resin, 10 parts of amino-terminated polyether, 0.5 part of antioxidant and 20 parts of deionized water; mixing isocyanate, dibutyltin dilaurate and polyether diol at 78 ℃ for reaction for 2h in a nitrogen environment to obtain a mixture A; adding epoxy resin, amine-terminated polyether, antioxidant and deionized water into the mixture A, and shearing and mixing at the rotating speed of 3000r/min for 1.5h to obtain a modified coating;
weighing the following components in parts by weight: 1 wt% of nano silver particles, 18 wt% of zeolite and 96 wt% of adhesive; shearing and mixing the nano silver particles and the zeolite at a high rotating speed for 1h, fully mixing and stirring the mixture of the nano silver particles and the zeolite with an adhesive, and vacuumizing to eliminate bubbles in the mixture to obtain an antibacterial coating;
cleaning the non-woven fabric, sterilizing by irradiating under ultraviolet lamp for 0.5h, and drying; uniformly coating a modified coating on one side of the non-woven fabric and drying, wherein the coating thickness of the modified coating is 1.0 mm; uniformly coating an antibacterial coating on one side of the non-woven fabric away from the modified coating, wherein the coating thickness of the antibacterial coating is 1.2mm, mutually bonding the two sides of the non-woven fabric coated with the antibacterial coating, firstly, rolling and pressing by using a hot-pressing roller, and when rolling and pressing by using the hot-pressing roller for shaping, performing negative pressure pumping on the periphery of the fabric; and uniformly irradiating and drying by using a drying lamp to obtain the composite fabric.
Cutting out circular composite fabric samples with the same diameter from the composite fabrics prepared in comparative examples 1-4 of the invention, applying pressure to the circle center of the fabric sample and detecting the pressure value when the fabric sample is broken, namely the breaking strength of the composite fabric; measuring the elongation size of the sample fabric after the sample fabric is broken, thereby obtaining the breaking elongation; and performing antibacterial property test on the sample fabric, and performing antibacterial property test.
And (3) antibacterial property test: the percent reduction of the test bacteria was tested in E.coli (ATCCNO.8099) with reference to AATCC100, and the results are shown in Table 2 below:
TABLE 2
Figure BDA0003037794370000151
In summary, it can be seen from table 2 that the composite fabrics prepared in comparative examples 2 to 4 have lower breaking strength and elongation at break than the composite fabric prepared in example 5, and the composite fabric prepared in comparative example 1 has lower antibacterial performance than the composite fabric prepared in example 5. The antibacterial coating in the comparative example 1 only consists of the nano silver particles and the adhesive, no carrier is added, the nano silver particles cannot be uniformly coated on the non-woven fabric, and the antibacterial performance is reduced; in the comparative example 2, dibutyltin dilaurate and butanone are not added, and the polyurethane synthesis reaction of isocyanate is not catalyzed and modified, so that the fracture resistance of the obtained polyurethane is reduced, the breaking strength and the elongation at break of the prepared composite fabric are reduced, the adhesion of the prepared coating is reduced, and the coating cannot be uniformly and effectively coated on the non-woven fabric; in the comparative example 3, dibutyltin dilaurate is not added, and the process of polyurethane synthesis reaction of isocyanate cannot be catalyzed and modified, so that the fracture resistance of the obtained polyurethane is reduced, and the fracture strength and the elongation at break of the prepared composite fabric are reduced; in comparative example 4, butanone is not added, so that the prepared coating has reduced adhesiveness, and the coating cannot be uniformly and effectively coated on non-woven fabrics, so that the breaking strength and the breaking elongation of the prepared composite fabric are reduced.
In summary, in the composite fabric and the preparation method thereof provided in this embodiment, the composite fabric includes a first composite layer, an antibacterial layer and a second composite layer, wherein the antibacterial layer includes an antibacterial coating; the first composite layer and the second composite layer both comprise non-woven fabrics and modified coatings, and the modified coatings are uniformly coated on one sides of the non-woven fabrics; the other side of the non-woven fabric is uniformly coated with an antibacterial coating; the modified coating comprises the following components in parts by weight: 12-25 parts of isocyanate, 0.1-0.5 part of dibutyltin dilaurate, 10-20 parts of polyether glycol, 3-7 parts of epoxy resin, 5-10 parts of amino-terminated polyether, 0.01-0.5 part of antioxidant, 10-20 parts of deionized water and 1-4 parts of butanone; the antibacterial coating comprises the following components in percentage by weight: 0.5-1 wt% of nano silver particles, 10-18 wt% of carrier and 90-96 wt% of adhesive.
Modified coating and antibacterial coating are paintd respectively in the both sides of non-woven fabrics, and the antibacterial coating still obtains compound surface fabric as the adhesive linkage preparation with two non-woven fabrics bonding preparation when playing antibiotic, improves preparation efficiency, and the bubble in the antibacterial coating preparation process is eliminated through the evacuation in the mixture at last, avoids having the bubble in the antibacterial coating and influences the coating effect, guarantees that antibacterial coating paints evenly, and antibacterial effect is even and good.
The modified coating is coated on two sides of the non-woven fabric, the modified coating is formed by crosslinking reaction of isocyanate, dibutyltin dilaurate, polyether diol, epoxy resin, amine-terminated polyether and an antioxidant, the dibutyltin dilaurate is used as a catalyst to improve polyurethane synthesis reaction of the isocyanate, and the dibutyltin dilaurate can also be used as a modifier to modify the polyurethane synthesized by the reaction, so that the breaking strength and the breaking elongation of the polyurethane are improved, deionized water is added in the preparation process, the modified coating is milky and convenient to coat, butanone is added in the preparation process, and the adhesive property of the modified coating is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. The composite fabric is characterized by comprising a first composite layer, an antibacterial layer and a second composite layer, wherein the antibacterial layer comprises an antibacterial coating;
the first composite layer and the second composite layer both comprise non-woven fabrics and modified coatings, and the modified coatings are uniformly coated on one sides of the non-woven fabrics;
the other side of the non-woven fabric is uniformly coated with an antibacterial coating;
the modified coating comprises the following components in parts by weight: 12-25 parts of isocyanate, 0.1-0.5 part of dibutyltin dilaurate, 10-20 parts of polyether glycol, 3-7 parts of epoxy resin, 5-10 parts of amino-terminated polyether, 0.01-0.5 part of antioxidant, 10-20 parts of deionized water and 1-4 parts of butanone;
the antibacterial coating comprises the following components in percentage by weight: 0.5-1 wt% of nano silver particles, 10-18 wt% of carrier and 90-96 wt% of adhesive.
2. The composite fabric according to claim 1, wherein the preparation method of the modified coating comprises the following steps: weighing the components in parts by weight; mixing isocyanate, dibutyltin dilaurate and polyether diol at 65-78 ℃ for reaction for 1.5-2h under a nitrogen environment to obtain a mixture A; adding the epoxy resin, the amino-terminated polyether, the antioxidant, the deionized water and the butanone into the mixture A, and shearing and mixing for 1-1.5h at the rotating speed of 2000-3000r/min to obtain the modified coating.
3. The composite fabric according to claim 1, wherein the preparation method of the antibacterial coating comprises the following steps: shearing and mixing the nano silver particles and the carrier at a high rotating speed for 1h, fully mixing and stirring the mixture of the nano silver particles and the carrier with the adhesive, and vacuumizing to eliminate air bubbles in the mixture to obtain the antibacterial coating.
4. A composite fabric according to claim 1, wherein the carrier is one or both of zirconium phosphate, apatite and zeolite.
5. A composite fabric as claimed in claims 1 to 4, wherein the modified coating is applied to a thickness of 0.06 to 1.0mm and the antimicrobial coating is applied to a thickness of 0.08 to 1.2 mm.
6. The composite fabric according to claim 1, wherein the modified coating comprises the following components in parts by weight: 13-24 parts of isocyanate, 0.2-0.4 part of dibutyltin dilaurate, 11-18 parts of polyether glycol, 4-6 parts of epoxy resin, 6-9 parts of amino-terminated polyether, 0.02-0.4 part of antioxidant, 12-18 parts of deionized water and 1.5-3.5 parts of butanone.
7. The composite fabric according to claim 1, wherein the antibacterial coating comprises the following components in parts by weight: 0.75 wt% of nano silver particles, 14 wt% of carrier and 93 wt% of adhesive.
8. A method of making a composite fabric as claimed in any one of claims 1 to 7, comprising the steps of:
step 1: cleaning the non-woven fabric, sterilizing by irradiating under ultraviolet lamp for 0.5h, and drying;
step 2: uniformly coating a modified coating on one side of the non-woven fabric and airing;
and step 3: and uniformly coating the antibacterial coating on one side of the non-woven fabric far away from the modified coating, mutually jointing the two sides of the non-woven fabric coated with the antibacterial coatings, and performing hot-press forming to obtain the composite fabric.
9. The preparation method of the composite fabric according to claim 8, wherein the hot press molding method comprises the following steps: rolling, pressing and shaping by using a hot-pressing roller; and then uniformly irradiating and drying by using a drying lamp.
10. The method for preparing the composite fabric according to claim 9, wherein when the hot-pressing roller is used for rolling, pressing and shaping, negative pressure is pumped around the fabric.
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