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CN113103686B - Washing-resistant waterproof moisture-permeable foam adhesive laminated fabric - Google Patents

Washing-resistant waterproof moisture-permeable foam adhesive laminated fabric Download PDF

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Publication number
CN113103686B
CN113103686B CN202110421126.6A CN202110421126A CN113103686B CN 113103686 B CN113103686 B CN 113103686B CN 202110421126 A CN202110421126 A CN 202110421126A CN 113103686 B CN113103686 B CN 113103686B
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parts
fabric
waterproof
stirring
solution
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CN113103686A (en
Inventor
刘倩
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Guangdong Kamina Wedding Dress Co ltd
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Guangdong Kamina Wedding Dress Co ltd
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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
    • 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
    • B32B37/1284—Application of adhesive
    • 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
    • B32B38/08—Impregnating
    • 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
    • B32B5/02—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
    • 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
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B32B2260/023—Two or more layers
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0223—Vinyl resin fibres
    • B32B2262/0238—Vinyl halide, e.g. PVC, PVDC, PVF, PVDF
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0292—Polyurethane fibres
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/14—Mixture of at least two fibres made of different materials
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/308—Heat stability
    • 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
    • B32B2307/726—Permeability to liquids, absorption
    • 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
    • B32B2307/73—Hydrophobic

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses a washable waterproof and moisture permeable foam adhesive laminated fabric and a preparation method thereof, wherein the laminated fabric comprises a modified fabric, foam adhesive and a waterproof film from bottom to top; the modified fabric is prepared from a cotton fabric, sodium hydroxide, oxalic acid, a first modifier and a second modifier; the foam rubber is obtained by foaming a foaming agent; the waterproof membrane is prepared from a pretreatment membrane, polydimethylsiloxane and cyclohexane; the pretreatment film comprises a first waterproof layer and a second waterproof layer from bottom to top. The invention discloses a washable waterproof moisture permeable foam adhesive laminated fabric and a preparation method thereof, the process operation is simple, the component proportion is reasonable, a waterproof film with the hydrophobic, waterproof and moisture permeable performances is laminated on the surface of a modified fabric by utilizing a foam adhesive laminating method, and the prepared laminated fabric has the advantages of excellent waterproof and moisture permeable performances, high hydrophobic performance, excellent washable performance and higher practicability.

Description

Washing-resistant waterproof moisture-permeable foam adhesive laminated fabric
Technical Field
The invention relates to the technical field of fabric processing, in particular to a washable waterproof moisture permeable foam adhesive laminated fabric.
Background
The waterproof moisture permeable fabric means that water is not immersed into the fabric under certain pressure, and sweat emitted by a human body can be conducted to the outside through the fabric in a water vapor mode, so that the sweat is prevented from accumulating and condensing between the body surface and the fabric, the comfort of the garment is kept, and the waterproof moisture permeable fabric is a functional fabric with high technology and unique characteristics. The most widely used practice is to achieve waterproof moisture permeation by coating finishing or by laminating a waterproof moisture permeable film.
The waterproof moisture-permeable fabric on the market at present has poor water resistance, the waterproof moisture-permeable effect of the waterproof moisture-permeable fabric is obviously reduced along with the increase of the washing times, and inconvenience is brought to practical application of people.
Aiming at the problem, a water-washing-resistant waterproof moisture-permeable foam adhesive laminated fabric and a preparation method thereof are designed, which are one of the technical problems to be solved urgently.
Disclosure of Invention
The invention aims to provide a washable waterproof moisture permeable foam adhesive laminated fabric and a preparation method thereof, and aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
a washing-resistant waterproof moisture permeable foam adhesive laminated fabric comprises a modified fabric, foam adhesive and a waterproof film from bottom to top;
the modified fabric is prepared from a cotton fabric, sodium hydroxide, oxalic acid, a first modifier and a second modifier; the foam rubber is obtained by foaming a foaming agent;
the waterproof membrane is prepared from a pretreatment membrane, polydimethylsiloxane and cyclohexane; the pretreatment film comprises a first waterproof layer and a second waterproof layer from bottom to top.
According to an optimized scheme, the first modifier is prepared from oxidized chitosan and sericin;
the second modifier comprises the following raw materials in parts by weight: by weight, 2-3 parts of nano chitosan, 10-15 parts of dimethylacetamide, 6-10 parts of polyvinylpyrrolidone and 15-18 parts of polyvinylidene fluoride.
According to an optimized scheme, the raw materials of each component of the first waterproof layer comprise: 24-28 parts of N, N-dimethylformamide, 8-10 parts of dichloromethane, 15-24 parts of polyurethane and 5-8 parts of polycaprolactone by weight.
According to an optimized scheme, the raw materials of each component of the second waterproof layer comprise: by weight, 21-28 parts of N, N-dimethylformamide, 9-12 parts of acetone, 10-14 parts of carbon nanotubes and 16-20 parts of polyvinylidene fluoride.
According to an optimized scheme, the foam inhibitor comprises the following raw materials: by weight, 80-90 parts of acrylic copolymer, 5-7 parts of melamine formaldehyde resin, 0.5-1 part of alkyl sulfonic succinamide and 3-5 parts of fluoroacrylate copolymer.
According to an optimized scheme, the preparation method of the washable waterproof moisture permeable foam adhesive laminated fabric comprises the following steps:
1) Preparing materials;
2) Preparation of the first modifier:
a) Dissolving chitosan in acetic acid, stirring, adding sodium periodate, stirring in dark place for reaction, adding anhydrous ethanol for termination of reaction, filtering, washing, and drying to obtain oxidized chitosan;
b) Dissolving oxidized chitosan in deionized water, adding sericin powder, mixing and stirring, and performing ultrasonic treatment for 10-12min to obtain a first modifier;
3) Preparing a modified fabric:
a) Taking a cotton fabric, placing the cotton fabric in a sodium hydroxide solution, soaking for 0.8-1h, washing with deionized water, placing the cotton fabric in an oxalic acid solution, soaking for 25-30min, washing with deionized water, ultrasonically washing for 15-20min, and drying to obtain a pretreated fabric;
b) Dissolving chitosan in acetic acid, mixing and stirring, slowly dropwise adding sodium polyphosphate, stirring at room temperature, and freeze-drying in vacuum to obtain nano chitosan; taking nano chitosan, placing the nano chitosan in a dimethylacetamide solution, and performing ultrasonic dispersion to obtain a solution A;
c) Placing the pretreated fabric into a first modifier, soaking in a water bath at 80-85 ℃, adding the solution A, stirring in a constant-temperature water bath at 55-60 ℃, adding polyvinylpyrrolidone and polyvinylidene fluoride, oscillating in a constant-temperature water bath at 50-52 ℃, standing, and curing to obtain a modified fabric;
4) Preparing a waterproof film:
a) Mixing and stirring N, N-dimethylformamide and dichloromethane to obtain a first solvent; dissolving polyurethane and polycaprolactone in a first solvent, and stirring at room temperature to obtain a first spinning solution;
b) Mixing and stirring N, N-dimethylformamide and acetone to obtain a second solvent; adding the carbon nano tube into a second solvent, carrying out ultrasonic treatment, adding polyvinylidene fluoride, and stirring at room temperature to obtain a second spinning solution;
c) Taking a first spinning solution and a second spinning solution, firstly carrying out electrostatic spinning on the first spinning solution to obtain a first waterproof layer, then carrying out electrostatic spinning on the upper surface of the first waterproof film by using the second spinning solution to form a second waterproof layer, and standing to obtain a pretreatment film;
d) Taking polydimethylsiloxane and cyclohexane, and stirring to obtain a solution B; taking the pretreatment membrane, carrying out constant-temperature heat treatment at 60-70 ℃ for 1-1.2h, placing the membrane in the solution B for soaking, and carrying out vacuum drying to obtain a waterproof membrane;
5) Preparing foam rubber by a foam preparation machine, coating the foam rubber on the surface of the modified fabric, drying by a setting machine, laminating a waterproof film to enable the first waterproof layer to be in contact with the foam rubber, pressing by a roller, and heating and curing by the setting machine to obtain the laminated fabric.
The optimized scheme comprises the following steps:
1) Preparing materials;
2) Preparation of the first modifier:
a) Dissolving chitosan in acetic acid, stirring for 1-2h, adding sodium periodate, stirring in dark for 45-48h, adding absolute ethanol to stop reaction, filtering, washing, and drying at 40-45 deg.C to obtain oxidized chitosan;
b) Dissolving oxidized chitosan in deionized water, adding sericin powder, mixing and stirring for 10-15min, and performing ultrasonic treatment for 10-12min to obtain a first modifier;
3) Preparing a modified fabric:
a) Taking a cotton fabric, placing the cotton fabric in a sodium hydroxide solution at the temperature of 80-85 ℃, soaking for 0.8-1h, washing with deionized water, placing the cotton fabric in an oxalic acid solution at the temperature of 70-75 ℃, soaking for 25-30min, washing with deionized water, ultrasonically washing for 15-20min, and drying to obtain a pretreated fabric;
b) Dissolving chitosan in acetic acid, mixing and stirring for 20-30min, slowly dropwise adding sodium polyphosphate, stirring at room temperature for 2-2.2h, and vacuum freeze drying to obtain nano chitosan; placing nano chitosan in a dimethylacetamide solution, and performing ultrasonic dispersion for 10-15min to obtain a solution A;
c) Placing the pretreated fabric into a first modifier, soaking for 3-3.2h under the condition of 80-85 ℃ water bath, adding the solution A, stirring in 55-60 ℃ constant-temperature water bath for 1-2h, adding polyvinylpyrrolidone and polyvinylidene fluoride, oscillating for 2-2.5h in 50-52 ℃ constant-temperature water bath, standing for 24h, and curing to obtain a modified fabric;
4) Preparing a waterproof film:
a) Mixing and stirring N, N-dimethylformamide and dichloromethane for 5-10min to obtain a first solvent; dissolving polyurethane and polycaprolactone in a first solvent, stirring at room temperature for 12-14h, and performing ultrasonic treatment for 2-2.2h to obtain a first spinning solution;
b) Mixing and stirring N, N-dimethylformamide and acetone for 10-15min to obtain a second solvent; adding the carbon nano tube into a second solvent, carrying out ultrasonic treatment for 6-6.5h, adding polyvinylidene fluoride, and stirring at room temperature for 12h to obtain a second spinning solution;
c) Taking a first spinning solution and a second spinning solution, performing electrostatic spinning on the first spinning solution to obtain a first waterproof layer, performing electrostatic spinning on the upper surface of the first waterproof film by using the second spinning solution to form a second waterproof layer, and standing for 20-30min to obtain a pretreatment film;
d) Taking polydimethylsiloxane and cyclohexane, and stirring for 10-15min to obtain a solution B; taking the pretreatment membrane, carrying out constant-temperature heat treatment at 60-70 ℃ for 1-1.2h, placing the membrane in the solution B for soaking for 1-1.2h, and then placing the membrane in the solution B for vacuum drying at 70 ℃ for 24h to obtain a waterproof membrane;
5) Preparing foam rubber by a foam preparation machine, coating the foam rubber on the surface of the modified fabric, drying by a setting machine, laminating a waterproof film to enable the first waterproof layer to be in contact with the foam rubber, pressing by a roller, heating and curing by the setting machine, and controlling the processing temperature of the setting machine to be 100-110 ℃ to obtain the laminated fabric.
In an optimized scheme, in the step c) of the step 4), the electrostatic spinning voltage is 15KV, the solution flow rate is 0.6ml/h, and the electrostatic spinning temperature is 25-27 ℃.
In an optimized scheme, in the step c) of the step 4), the thicknesses of the first waterproof layer and the second waterproof layer are both 20-22um.
In the optimized scheme, in the step b) of the step 2), intermittent ultrasonic treatment is adopted during ultrasonic treatment, the ultrasonic treatment is stopped for 1min every 1min, and the ultrasonic power is 80W
Compared with the prior art, the invention has the beneficial effects that:
the invention discloses a modified fabric, which is prepared by placing a cotton fabric in sodium hydroxide and oxalic acid, and aims to remove impurities from the cotton fabric and remove impurities such as oil stain, dust and the like contained on the surface of the cotton fabric to obtain a pretreated fabric; the method comprises the following steps of putting a pretreated fabric into a first modifier, wherein the first modifier is prepared from oxidized chitosan and sericin powder, positioning and oxidizing chitosan by using a periodate oxidation method to generate oxidized chitosan with dialdehyde functional groups, and then using the oxidized chitosan as a carrier of the sericin to ensure that the oxidized chitosan and-NH 2 in the sericin generate imidization covalent bonding to form a stable net structure which can immobilize the sericin.
The cotton fabric is modified by the first modifier, and then the nano chitosan is added, at the moment, an oxidized chitosan-sericin network structure exists on the surface of the cotton fabric, the nano chitosan can be adsorbed and fixed, then the polyvinylpyrrolidone and the polyvinylidene fluoride are added, a polyvinylidene fluoride film layer can be formed on the surface of the pretreated fabric after reaction, the number of holes of the polyvinylidene fluoride film layer can be effectively increased by adding the nano chitosan, the hole diameter is reduced, the water drop permeation resistance is increased, and the waterproof performance of the cotton fabric can be improved.
The invention discloses a waterproof membrane, which is a double-layer waterproof membrane prepared by a continuous electrostatic spinning mode, wherein when the double-layer waterproof membrane is prepared, a first spinning solution is prepared by polyurethane and polycaprolactone, a first waterproof layer is prepared by utilizing the first spinning solution, a second waterproof layer is prepared by utilizing polyvinylidene fluoride and carbon nano tubes, and a pretreatment membrane is obtained by utilizing the first spinning solution to prepare the second waterproof layer; the second waterproof layer has excellent hydrophobic performance and can be used as a hydrophobic layer, and the first waterproof layer is positioned between the second waterproof layer and the modified fabric and can be used as a water vapor conveying layer; the waterproof layer has excellent hydrophobic, waterproof and moisture permeable performances.
When the waterproof layer is prepared, the pretreatment film can be subjected to heat treatment, the fibers of the pretreatment film are bonded together, the bonding degree is increased and uniformly distributed, the cross mixed fibers are gradually changed into bonded fibers, namely, the porous structure between the fibers of the pretreatment film is damaged by the bonding caused by the temperature rise, the pore diameter of the pretreatment film is reduced, and the effects of preventing liquid water from permeating and transmitting moisture are achieved; after the heat treatment, the pretreatment film is soaked in polydimethylsiloxane for surface modification to obtain a waterproof film; at the moment, the polydimethylsiloxane is coated on the surface of the fiber and enters the interior of the pretreatment membrane, so that the fiber of the pretreatment membrane and the polydimethylsiloxane form compact accumulation, the treatment can improve the bonding effect between the first waterproof layer and the second waterproof layer, and simultaneously further reduce the porosity and the pore diameter of the pretreatment membrane and improve the waterproof and moisture-permeable performances of the waterproof membrane; meanwhile, as the polydimethylsiloxane has excellent thermal stability, when the polydimethylsiloxane is uniformly coated on the surface of the pretreated membrane, the thermal stability of the waterproof membrane can be improved.
The invention discloses a washable waterproof moisture permeable foam adhesive laminated fabric and a preparation method thereof, the process operation is simple, the component proportion is reasonable, a waterproof film with the hydrophobic, waterproof and moisture permeable performances is laminated on the surface of a modified fabric by utilizing a foam adhesive laminating method, and the prepared laminated fabric has the advantages of excellent waterproof and moisture permeable performances, high hydrophobic performance, excellent washable performance and higher practicability.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
s1: preparing materials;
s2: preparation of the first modifier:
dissolving chitosan in acetic acid, stirring for 1h, adding sodium periodate, stirring in the dark for 45h, adding absolute ethyl alcohol to stop the reaction, filtering, washing, and drying at 40 ℃ to obtain oxidized chitosan;
dissolving oxidized chitosan and deionized water, adding sericin powder, mixing and stirring for 10min, performing ultrasonic treatment for 10min, performing intermittent ultrasonic treatment during ultrasonic treatment, stopping for 1min every 1min of ultrasonic treatment, and obtaining a first modifier with the ultrasonic power of 80W;
s3: preparing a modified fabric:
taking a cotton fabric, placing the cotton fabric in a sodium hydroxide solution at 80 ℃, soaking for 0.8h, washing with deionized water, placing the cotton fabric in an oxalic acid solution at 70 ℃, soaking for 25min, washing with deionized water, ultrasonically washing for 15min, and drying to obtain a pretreated fabric;
dissolving chitosan in acetic acid, mixing and stirring for 20min, slowly dropwise adding sodium polyphosphate, stirring at room temperature for 2h, and freeze-drying under vacuum to obtain nano chitosan; placing nano chitosan in a dimethylacetamide solution, and performing ultrasonic dispersion for 10min to obtain a solution A;
placing the pretreated fabric into a first modifier, soaking for 3 hours in a water bath at 80 ℃, adding the solution A, stirring in a constant-temperature water bath at 55 ℃ for 1 hour, adding polyvinylpyrrolidone and polyvinylidene fluoride, oscillating for 2 hours in a constant-temperature water bath at 50 ℃, standing for 24 hours, and curing to obtain a modified fabric;
s4: preparing a waterproof film:
mixing and stirring N, N-dimethylformamide and dichloromethane for 5min to obtain a first solvent; dissolving polyurethane and polycaprolactone in a first solvent, stirring for 12 hours at room temperature, and performing ultrasonic treatment for 2 hours to obtain a first spinning solution;
mixing and stirring N, N-dimethylformamide and acetone for 10min to obtain a second solvent; adding the carbon nano tube into a second solvent, carrying out ultrasonic treatment for 6 hours, adding polyvinylidene fluoride, and stirring at room temperature for 12 hours to obtain a second spinning solution;
taking a first spinning solution and a second spinning solution, firstly carrying out electrostatic spinning on the first spinning solution to obtain a first waterproof layer, then carrying out electrostatic spinning on the upper surface of the first waterproof film by using the second spinning solution to form a second waterproof layer, and standing for 20min to obtain a pretreatment film; wherein the electrostatic spinning voltage is 15KV, the solution flow rate is 0.6ml/h, and the electrostatic spinning temperature is 25 ℃; the thicknesses of the first waterproof layer and the second waterproof layer are both 20 mu m;
taking polydimethylsiloxane and cyclohexane, and stirring for 10min to obtain a solution B; taking the pretreatment membrane, carrying out constant-temperature heat treatment for 1h at 60 ℃, soaking in the solution B for 1h, and then carrying out vacuum drying at 70 ℃ for 24h to obtain a waterproof membrane;
s5: preparing a foam agent, preparing foam rubber through a foam preparation machine, coating the foam rubber on the surface of the modified fabric, drying by a setting machine, attaching a waterproof film to make the first waterproof layer contact with the foam rubber, pressing by a roller, heating and curing by the setting machine, and setting the processing temperature of the setting machine to be 100 ℃ to obtain the attached fabric.
In this embodiment, the second modifier comprises the following raw materials: by weight, 2 parts of nano chitosan, 10 parts of dimethylacetamide, 6 parts of polyvinylpyrrolidone and 15 parts of polyvinylidene fluoride; the first waterproof layer comprises the following raw materials: 24 parts of N, N-dimethylformamide, 8 parts of dichloromethane, 15 parts of polyurethane and 5 parts of polycaprolactone by weight;
the second waterproof layer comprises the following raw materials: 21 parts of N, N-dimethylformamide, 9 parts of acetone, 10 parts of carbon nano tube and 16 parts of polyvinylidene fluoride by weight; the foam inhibitor comprises the following raw materials: by weight, 80 parts of acrylic acid copolymer, 5 parts of melamine formaldehyde resin, 0.5 part of alkyl sulfonic succinamide and 3 parts of fluoroacrylate copolymer.
Example 2:
s1: preparing materials;
s2: preparation of the first modifier:
dissolving chitosan in acetic acid, stirring for 1.5h, adding sodium periodate, stirring away from light for reaction for 47h, adding absolute ethyl alcohol to stop the reaction, filtering, washing, and drying at 42 ℃ to obtain oxidized chitosan;
dissolving oxidized chitosan and deionized water, adding sericin powder, mixing and stirring for 13min, performing ultrasonic treatment for 11min, performing intermittent ultrasonic treatment during ultrasonic treatment, stopping for 1min every 1min of ultrasonic treatment, and obtaining a first modifier with the ultrasonic power of 80W;
s3: preparing a modified fabric:
placing a cotton fabric in a sodium hydroxide solution at 82 ℃, soaking for 0.9h, washing with deionized water, placing in an oxalic acid solution at 73 ℃, soaking for 28min, washing with deionized water, ultrasonically washing for 19min, and drying to obtain a pretreated fabric;
dissolving chitosan in acetic acid, mixing and stirring for 25min, slowly dropwise adding sodium polyphosphate, stirring at room temperature for 2.1h, and vacuum freeze-drying to obtain nano chitosan; placing nano chitosan in a dimethylacetamide solution, and performing ultrasonic dispersion for 13min to obtain a solution A;
placing the pretreated fabric into a first modifier, soaking for 3.1h under the condition of 82 ℃ water bath, adding the solution A, stirring in 58 ℃ constant-temperature water bath for 1.5h, adding polyvinylpyrrolidone and polyvinylidene fluoride, oscillating for 2.4h in 51 ℃ constant-temperature water bath, standing for 24h, and curing to obtain a modified fabric;
s4: preparing a waterproof film:
mixing and stirring N, N-dimethylformamide and dichloromethane for 7min to obtain a first solvent; dissolving polyurethane and polycaprolactone in a first solvent, stirring at room temperature for 13 hours, and performing ultrasonic treatment for 2.1 hours to obtain a first spinning solution;
mixing and stirring N, N-dimethylformamide and acetone for 12min to obtain a second solvent; adding the carbon nano tube into a second solvent, carrying out ultrasonic treatment for 6.4h, adding polyvinylidene fluoride, and stirring at room temperature for 12h to obtain a second spinning solution;
taking a first spinning solution and a second spinning solution, performing electrostatic spinning on the first spinning solution to obtain a first waterproof layer, performing electrostatic spinning on the upper surface of the first waterproof film by using the second spinning solution to form a second waterproof layer, and standing for 25min to obtain a pretreatment film; wherein the electrostatic spinning voltage is 15KV, the solution flow rate is 0.6ml/h, and the electrostatic spinning temperature is 26 ℃; the thicknesses of the first waterproof layer and the second waterproof layer are both 21um;
taking polydimethylsiloxane and cyclohexane, and stirring for 13min to obtain a solution B; taking the pretreatment membrane, carrying out constant-temperature heat treatment at 65 ℃ for 1.1h, placing the pretreatment membrane in the solution B for soaking for 1.1h, and then placing the pretreatment membrane in the solution B for vacuum drying at 70 ℃ for 24h to obtain a waterproof membrane;
s5: preparing a foam agent, preparing foam rubber through a foam preparation machine, coating the foam rubber on the surface of the modified fabric, drying the modified fabric through a setting machine, attaching a waterproof film to enable the first waterproof layer to be in contact with the foam rubber, pressing the waterproof film through a roller, heating and curing the waterproof film through the setting machine, and setting the processing temperature of the setting machine to be 105 ℃ to obtain the attached fabric.
In this embodiment, the second modifier comprises the following raw materials: by weight, 2.5 parts of nano chitosan, 11 parts of dimethylacetamide, 9 parts of polyvinylpyrrolidone and 17 parts of polyvinylidene fluoride; the first waterproof layer comprises the following raw materials: 26 parts of N, N-dimethylformamide, 9 parts of dichloromethane, 21 parts of polyurethane and 7 parts of polycaprolactone by weight;
the second waterproof layer comprises the following raw materials: 27 parts of N, N-dimethylformamide, 11 parts of acetone, 13 parts of carbon nano tube and 19 parts of polyvinylidene fluoride by weight; the foam inhibitor comprises the following raw materials: 88 parts of acrylic acid copolymer, 6 parts of melamine formaldehyde resin, 0.8 part of alkyl sulfonic succinamide and 4 parts of fluoroacrylate copolymer.
Example 3:
s1: preparing materials;
s2: preparation of the first modifier:
dissolving chitosan in acetic acid, stirring for 2h, adding sodium periodate, stirring in the dark for reaction for 48h, adding absolute ethyl alcohol to stop the reaction, filtering, washing, and drying at 45 ℃ to obtain oxidized chitosan;
dissolving oxidized chitosan in deionized water, adding sericin powder, mixing and stirring for 15min, performing ultrasonic treatment for 12min, performing intermittent ultrasonic treatment during ultrasonic treatment, stopping ultrasonic treatment for 1min every 1min, and performing ultrasonic treatment at the power of 80W to obtain a first modifier;
s3: preparing a modified fabric:
taking a cotton fabric, placing the cotton fabric in a sodium hydroxide solution at 85 ℃, soaking for 1h, washing with deionized water, placing the cotton fabric in an oxalic acid solution at 75 ℃, soaking for 30min, washing with deionized water, ultrasonically washing for 20min, and drying to obtain a pretreated fabric;
dissolving chitosan in acetic acid, mixing and stirring for 30min, slowly dropwise adding sodium polyphosphate, stirring at room temperature for 2.2h, and vacuum freeze-drying to obtain nano chitosan; placing nano chitosan in a dimethylacetamide solution, and performing ultrasonic dispersion for 15min to obtain a solution A;
placing the pretreated fabric into a first modifier, soaking for 3.2h under the condition of 85 ℃ water bath, adding the solution A, stirring in 60 ℃ constant-temperature water bath for 2h, adding polyvinylpyrrolidone and polyvinylidene fluoride, oscillating for 2.5h in 52 ℃ constant-temperature water bath, standing for 24h, and curing to obtain a modified fabric;
s4: preparing a waterproof film:
mixing and stirring N, N-dimethylformamide and dichloromethane for 10min to obtain a first solvent; dissolving polyurethane and polycaprolactone in a first solvent, stirring for 14 hours at room temperature, and performing ultrasonic treatment for 2.2 hours to obtain a first spinning solution;
mixing and stirring N, N-dimethylformamide and acetone for 15min to obtain a second solvent; adding the carbon nano tube into a second solvent, performing ultrasonic treatment for 6.5 hours, adding polyvinylidene fluoride, and stirring at room temperature for 12 hours to obtain a second spinning solution;
taking a first spinning solution and a second spinning solution, performing electrostatic spinning on the first spinning solution to obtain a first waterproof layer, performing electrostatic spinning on the upper surface of the first waterproof film by using the second spinning solution to form a second waterproof layer, and standing for 30min to obtain a pretreatment film; wherein the electrostatic spinning voltage is 15KV, the solution flow rate is 0.6ml/h, and the electrostatic spinning temperature is 27 ℃; the thicknesses of the first waterproof layer and the second waterproof layer are both 22um;
taking polydimethylsiloxane and cyclohexane, and stirring for 15min to obtain a solution B; taking the pretreatment membrane, carrying out constant-temperature heat treatment at 70 ℃ for 1.2h, placing the pretreatment membrane in the solution B for soaking for 1.2h, and then placing the pretreatment membrane in the solution B for vacuum drying at 70 ℃ for 24h to obtain a waterproof membrane;
s5: preparing foam rubber by a foam preparation machine, coating the foam rubber on the surface of the modified fabric, drying by a setting machine, laminating a waterproof film to enable the first waterproof layer to be in contact with the foam rubber, pressing by a roller, heating and curing by the setting machine, and controlling the processing temperature of the setting machine to be 110 ℃ to obtain the laminated fabric.
In this embodiment, the second modifier comprises the following raw materials: 3 parts of nano chitosan, 15 parts of dimethylacetamide, 10 parts of polyvinylpyrrolidone and 18 parts of polyvinylidene fluoride by weight; the first waterproof layer comprises the following raw materials: 28 parts of N, N-dimethylformamide, 10 parts of dichloromethane, 24 parts of polyurethane and 8 parts of polycaprolactone by weight;
the second waterproof layer comprises the following raw materials: 28 parts of N, N-dimethylformamide, 12 parts of acetone, 14 parts of carbon nano tube and 20 parts of polyvinylidene fluoride by weight; the foam inhibitor comprises the following raw materials: by weight, 90 parts of acrylic copolymer, 7 parts of melamine formaldehyde resin, 1 part of alkyl sulfonic succinamide and 5 parts of fluoroacrylate copolymer.
Experiment 1:
taking the laminated fabrics prepared in the examples 1-3, and respectively carrying out performance tests, wherein the washing method is carried out for 15 times according to the 5A procedure of GB/T8629-2001 family washing and drying procedure for textile test; testing the surface moisture resistance according to GB/T4745-2012 Standard of detection and evaluation of textile Water repellency; hydrostatic pressure resistance is carried out according to the specification of FZ/T1004-9 l; the moisture permeability is tested according to the GB/T12704-91 method for measuring the moisture permeability of fabrics, and the specific detection data are shown in the following table:
Figure 767193DEST_PATH_IMAGE002
and (4) conclusion: the examples 1 to 3 can be compared with commercially available cotton fabrics, and after detection, the surface moisture resistance of the laminated fabric prepared in the examples 1 to 3 is found to be excellent, and the hydrostatic pressure resistance is more than or equal to 6900Pa, while the existing cotton fabrics on the market can only reach 4350Pa after detection; the moisture permeability is more than or equal to 315 g/(m) 2 24 h), whereas the existing commercial cotton fabrics can only reach 200 g/(m) after detection 2 ·24h)。
Namely, the waterproof and moisture permeable performance of the laminated fabric prepared by the method is excellent, all indexes are not obviously reduced through data detection after 10 times of washing, and the washing resistance is excellent.
The invention discloses a water-washing-resistant waterproof moisture-permeable foam adhesive laminated fabric and a preparation method thereof, the process operation is simple, the component proportion is reasonable, a waterproof film with hydrophobic, waterproof and moisture-permeable performances is laminated on the surface of the modified fabric by utilizing a foam adhesive laminating method, and the prepared laminated fabric has excellent waterproof and moisture-permeable performances, high hydrophobic performance, excellent water-washing resistance and higher practicability.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (1)

1. The utility model provides a waterproof moisture permeable foamed adhesive laminating surface fabric of resistant washing type which characterized in that: the laminated fabric comprises a modified fabric, foam rubber and a waterproof film from bottom to top;
the modified fabric is prepared from cotton fabric, sodium hydroxide, oxalic acid, a first modifier and a second modifier; the foam rubber is obtained by foaming a foaming agent;
the waterproof membrane is prepared from a pretreatment membrane, polydimethylsiloxane and cyclohexane; the pretreatment film comprises a first waterproof layer and a second waterproof layer from bottom to top;
the first modifier is prepared from oxidized chitosan and sericin;
the second modifier comprises the following raw materials in parts by weight: by weight, 2 parts of nano chitosan, 10 parts of dimethylacetamide, 6 parts of polyvinylpyrrolidone and 15 parts of polyvinylidene fluoride;
the first waterproof layer comprises the following raw materials in parts by weight: by weight, 24 parts of N, N-dimethylformamide, 8 parts of dichloromethane, 15 parts of polyurethane and 5 parts of polycaprolactone;
the second waterproof layer comprises the following raw materials in parts by weight: by weight, 21 parts of N, N-dimethylformamide, 9 parts of acetone, 10 parts of carbon nano tube and 16 parts of polyvinylidene fluoride; the foam inhibitor comprises the following raw materials: by weight, 80 parts of acrylic copolymer, 5 parts of melamine formaldehyde resin, 0.5 part of alkyl sulfonic succinamide and 3 parts of fluoroacrylate copolymer;
the preparation method of the washable waterproof moisture permeable foam adhesive laminated fabric comprises the following steps:
s1: preparing materials;
s2: preparation of the first modifier:
dissolving chitosan in acetic acid, stirring for 1h, adding sodium periodate, stirring away from light for 45h, adding absolute ethyl alcohol to stop reaction, filtering, washing, and drying at 40 deg.C to obtain oxidized chitosan;
dissolving oxidized chitosan and deionized water, adding sericin powder, mixing and stirring for 10min, performing ultrasonic treatment for 10min, performing intermittent ultrasonic treatment during ultrasonic treatment, stopping for 1min every 1min of ultrasonic treatment, and obtaining a first modifier with the ultrasonic power of 80W;
s3: preparing a modified fabric:
taking a cotton fabric, placing the cotton fabric in a sodium hydroxide solution at 80 ℃, soaking for 0.8h, washing with deionized water, placing the cotton fabric in an oxalic acid solution at 70 ℃, soaking for 25min, washing with deionized water, ultrasonically washing for 15min, and drying to obtain a pretreated fabric;
dissolving chitosan in acetic acid, mixing and stirring for 20min, slowly dropwise adding sodium polyphosphate, stirring at room temperature for 2h, and freeze-drying under vacuum to obtain nano chitosan; placing nano chitosan in a dimethylacetamide solution, and performing ultrasonic dispersion for 10min to obtain a solution A;
placing the pretreated fabric into a first modifier, soaking for 3 hours in a water bath at 80 ℃, adding the solution A, stirring in a constant-temperature water bath at 55 ℃ for 1 hour, adding polyvinylpyrrolidone and polyvinylidene fluoride, oscillating for 2 hours in a constant-temperature water bath at 50 ℃, standing for 24 hours, and curing to obtain a modified fabric;
s4: preparing a waterproof film:
mixing and stirring N, N-dimethylformamide and dichloromethane for 5min to obtain a first solvent; dissolving polyurethane and polycaprolactone in a first solvent, stirring for 12 hours at room temperature, and performing ultrasonic treatment for 2 hours to obtain a first spinning solution;
mixing and stirring N, N-dimethylformamide and acetone for 10min to obtain a second solvent; adding the carbon nano tube into a second solvent, carrying out ultrasonic treatment for 6 hours, adding polyvinylidene fluoride, and stirring at room temperature for 12 hours to obtain a second spinning solution;
taking a first spinning solution and a second spinning solution, performing electrostatic spinning on the first spinning solution to obtain a first waterproof layer, performing electrostatic spinning on the upper surface of the first waterproof film by using the second spinning solution to form a second waterproof layer, and standing for 20min to obtain a pretreatment film; wherein the electrostatic spinning voltage is 15KV, the solution flow rate is 0.6ml/h, and the electrostatic spinning temperature is 25 ℃; the thicknesses of the first waterproof layer and the second waterproof layer are both 20 micrometers;
taking polydimethylsiloxane and cyclohexane, and stirring for 10min to obtain a solution B; taking the pretreatment membrane, carrying out constant-temperature heat treatment for 1h at 60 ℃, soaking in the solution B for 1h, and then carrying out vacuum drying at 70 ℃ for 24h to obtain a waterproof membrane;
s5: preparing a foam agent, preparing foam rubber through a foam preparation machine, coating the foam rubber on the surface of the modified fabric, drying by a setting machine, attaching a waterproof film to make the first waterproof layer contact with the foam rubber, pressing by a roller, heating and curing by the setting machine, and setting the processing temperature of the setting machine to be 100 ℃ to obtain the attached fabric.
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