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CN111204096A - Preparation method of waterproof breathable fabric - Google Patents

Preparation method of waterproof breathable fabric Download PDF

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Publication number
CN111204096A
CN111204096A CN202010025747.8A CN202010025747A CN111204096A CN 111204096 A CN111204096 A CN 111204096A CN 202010025747 A CN202010025747 A CN 202010025747A CN 111204096 A CN111204096 A CN 111204096A
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China
Prior art keywords
fabric
waterproof
melt adhesive
adhesive film
preparation
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CN202010025747.8A
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Chinese (zh)
Inventor
张威劲
朱泽征
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Individual
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Individual
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Priority to CN202010025747.8A priority Critical patent/CN111204096A/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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • 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
    • 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
    • B32B7/08—Interconnection of layers by mechanical means
    • B32B7/09—Interconnection of layers by mechanical means by stitching, needling or sewing
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
    • C09D179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C09D179/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
    • 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
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber 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
    • B32B2255/26—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
    • B32B2307/724—Permeability to gases, adsorption
    • 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
    • B32B2307/7265—Non-permeable
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ceramic Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention belongs to the technical field of textile fabrics, and particularly relates to a preparation method of a waterproof and breathable fabric. The PES hot-melt adhesive film is used as a basic film, the PES hot-melt adhesive film has good flexibility, the pores in the glue can be improved and the air permeability can be improved by adding the glue and the additive on the upper portion of the PES hot-melt adhesive film under the action of the additive, the waterproof air permeability can be well enhanced under the properties of the waterproof air-permeable film and the mixture, the self-cleaning effect in the fabric can be improved under the action of the mixture, and the comfort level of the fabric can be well improved by using the fabric layer.

Description

Preparation method of waterproof breathable fabric
Technical Field
The invention belongs to the technical field of textile fabrics, and particularly relates to a preparation method of a waterproof and breathable fabric.
Background
With the gradual trend of diversified and multifunctional clothes requirements of consumers, the heat-storage and heat-preservation fabric is one of the key developed products. The heat transfer due to the garment can be essentially divided into two categories: sensible heat transfer, namely heat transfer which can be generated due to the difference between the temperature of a human body and the external environment, is mainly completed through heat conduction, convection and radiation; latent heat transfer, i.e., transfer of moist heat due to a difference in vapor concentration between the human body and the external environment, is mainly accomplished by evaporation and perspiration. With fashion of the clothes, the proper temperature of the human body is maintained only by increasing or decreasing the thickness of the fabric, which is not only troublesome but also difficult and not beautiful. Therefore, the development of new thermal insulation and temperature regulation fibers and fabrics has been rapidly started since the 90 s. Various new heat-insulating and temperature-regulating textiles are known in the art, for example, far infrared fibers, cooling fabrics, addition of special ceramic powders to a precursor liquid or coating methods to coat the fabrics with ceramic powders.
On the basis that basic functions of the clothes are not changed, people pay more and more attention to health care effects of clothes on bodies, along with development of science and technology and improvement of living standard of people, the requirement on safety of the fabric is continuously expanded, and people have higher requirements on functionality, comfort, health, environmental protection and health care of the fabric of the clothes. New materials of the clothes are continuously researched and developed, various effects of different materials are added into the clothes by using a proper process, and the functionality of the clothes is improved.
At present, waterproof breathable laminated fabrics have become a hotspot for research and development of textile products, and in functional textile fabrics, the waterproof breathable laminated fabrics are products with higher difficulty and higher technical content. The fabric on the market at present has a water repellent function, namely a rainwater-proof function, and a coating is mostly added on the surface of the polyester fabric, so that the air permeability of the fabric is reduced, the fabric feels stuffy when being worn, and the warmth retention property and the comfort of an inner layer are poor. The development of better waterproof and breathable fabric which meets the market demand has great significance.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: aiming at the problem of poor waterproof and air permeability of the existing fabric, a preparation method of the waterproof and air permeable fabric is provided.
In order to solve the technical problems, the invention adopts the following technical scheme:
a preparation method of a waterproof breathable fabric comprises the following steps:
(1) soaking a PES hot melt adhesive film in a hydrochloric acid solution, taking out, washing, then putting the PES hot melt adhesive film into the solution, preserving heat at 40-50 ℃, adjusting the pH to 7.5-8.0, adding an additive accounting for 3-6% of the mass of the PES hot melt adhesive film, raising the temperature to 60-70 ℃, and continuing preserving heat;
(2) after the heat preservation is finished, taking out the PES hot melt adhesive film for air drying, coating glue on one surface of the air-dried PES hot melt adhesive film, covering a layer of waterproof breathable film on the glue, putting the glue on extrusion equipment for extrusion, and setting the pressure to be 2-7 kg/cm2Collecting the dried substances at the drying temperature of 80-85 ℃;
(3) placing the dried material in a humidifying room, setting the temperature to be 50-60 ℃, keeping the air humidity to be 70-80%, coating a mixture on one surface of a PES hot melt adhesive film of the dried material, wherein the coating thickness is 0.3-0.7 cm, and standing for 3-6 hours;
(4) and after standing is finished, obtaining a standing fabric, placing fabric layers on two sides of the standing fabric, and sewing and fixedly connecting elastic fibers with the diameter of 0.02-0.04 mm by using a fabric sewing machine to obtain the waterproof breathable fabric.
The additive in the step (1) is any one of sodium bicarbonate and ammonium bicarbonate.
The glue in the step (2) is formed by mixing hydroxypropyl methyl cellulose, carboxymethyl starch and water according to a mass ratio of 4:3: 20.
The waterproof breathable film in the step (2) is any one of a TPU film and a PTFE film.
The preparation method of the mixture in the step (3) comprises the following steps:
A. uniformly mixing the cinnamyl-containing polyimide, the modified particles and a mixed solvent according to a mass ratio of 9: 2-4: 13 to obtain a base solution;
B. and (3) ultrasonically dispersing the base solution and tetrabutyl titanate uniformly according to the mass ratio of 12: 3-5, and vacuumizing and defoaming to obtain the mixture.
And the modified particles in the step A are prepared by heating titanium dioxide, graphene, sodium dodecyl benzene sulfonate and water according to the mass ratio of 7:3:0.1:20, filtering and drying.
The mixed solvent in the step A is formed by mixing ethylene glycol and acetone according to a volume ratio of 9: 2-4.
Compared with other methods, the method has the beneficial technical effects that the fabric layer in the step (4) is any one of cotton fabric and silk fabric, and the method has the following beneficial effects:
the PES hot-melt adhesive film is used as a basic film, the PES hot-melt adhesive film has good flexibility, the pores in the glue can be improved and the air permeability can be improved by adding the glue and the additive on the upper portion of the PES hot-melt adhesive film under the action of the additive, the waterproof air permeability can be well enhanced under the properties of the waterproof air-permeable film and the mixture, the self-cleaning effect in the fabric can be improved under the action of the mixture, and the comfort level of the fabric can be well improved by using the fabric layer.
Detailed Description
The additive is any one of sodium bicarbonate and ammonium bicarbonate.
The glue is prepared by mixing hydroxypropyl methyl cellulose, carboxymethyl starch and water according to the mass ratio of 4:3: 20.
The waterproof breathable film is any one of a TPU film and a PTFE film.
The preparation method of the mixture comprises the following steps:
A. uniformly mixing the cinnamyl-containing polyimide, the modified particles and a mixed solvent according to a mass ratio of 9: 2-4: 13 to obtain a base solution;
B. and (3) ultrasonically dispersing the base solution and tetrabutyl titanate uniformly according to the mass ratio of 12: 3-5, and vacuumizing and defoaming to obtain the mixture.
The modified particles are prepared by heating titanium dioxide, graphene, sodium dodecyl benzene sulfonate and water at a mass ratio of 7:3:0.1:20 at 90 ℃ for 2h, filtering and drying.
The mixed solvent is formed by mixing ethylene glycol and acetone according to the volume ratio of 9: 2-4.
The fabric layer in the step (4) is any one of cotton fabric and silk fabric
A preparation method of a waterproof breathable fabric comprises the following steps:
(1) soaking a PES hot melt adhesive film in a 0.6mol/L hydrochloric acid solution for 1 hour, taking out, washing, then putting into the solution, preserving heat at 40-50 ℃ for 3 hours, adjusting the pH to 7.5-8.0, adding an additive accounting for 3-6% of the mass of the PES hot melt adhesive film, heating to 60-70 ℃, and continuing preserving heat for 2 hours;
(2) after the heat preservation is finished, taking out the PES hot melt adhesive film for air drying, coating glue on one surface of the air-dried PES hot melt adhesive film, covering a layer of waterproof breathable film on the glue, putting the glue on extrusion equipment for extrusion, and setting the pressure to be 2-7 kg/cm2Collecting the dried substances at the drying temperature of 80-85 ℃;
(3) placing the dried material in a humidifying room, setting the temperature to be 50-60 ℃, keeping the air humidity to be 70-80%, coating a mixture on one surface of a PES hot melt adhesive film of the dried material, wherein the coating thickness is 0.3-0.7 cm, and standing for 3-6 hours;
(4) and after standing is finished, obtaining a standing fabric, placing fabric layers on two sides of the standing fabric, and sewing and fixedly connecting elastic fibers with the diameter of 0.02-0.04 mm by using a fabric sewing machine to obtain the waterproof breathable fabric.
Example 1
The additive is any one of sodium bicarbonate and ammonium bicarbonate.
The glue is prepared by mixing hydroxypropyl methyl cellulose, carboxymethyl starch and water according to the mass ratio of 4:3: 20.
The waterproof breathable film is any one of a TPU film and a PTFE film.
The preparation method of the mixture comprises the following steps:
A. uniformly mixing the cinnamyl-containing polyimide, the modified particles and a mixed solvent according to a mass ratio of 9:4:13 to obtain a base solution;
B. and (3) ultrasonically dispersing the base solution and tetrabutyl titanate uniformly according to the mass ratio of 12:5, and vacuumizing and defoaming to obtain the mixture. The modified particles are prepared by heating titanium dioxide, graphene, sodium dodecyl benzene sulfonate and water at a mass ratio of 7:3:0.1:20 at 90 ℃ for 2h, filtering and drying.
The mixed solvent is formed by mixing ethylene glycol and acetone according to the volume ratio of 9: 4.
The fabric layer is any one of cotton fabric and silk fabric
A preparation method of a waterproof breathable fabric comprises the following steps:
(1) soaking a PES hot melt adhesive film in a 0.6mol/L hydrochloric acid solution for 1h, taking out, washing, then putting into the solution, preserving heat at 50 ℃ for 3h, adjusting the pH to 8.0, adding an additive accounting for 6% of the mass of the PES hot melt adhesive film, heating to 70 ℃, and continuing to preserve heat for 2 h;
(2) after the heat preservation is finished, taking out the PES hot melt adhesive film for air drying, coating glue on one surface of the air-dried PES hot melt adhesive film, covering a layer of waterproof breathable film on the glue, extruding the PES hot melt adhesive film on extrusion equipment, and setting the pressure to be 7kg/cm2Collecting the dried substances at the drying temperature of 85 ℃;
(3) placing the dried material in a humidifying room, setting the temperature at 60 ℃, keeping the air humidity at 80%, coating the mixture on one surface of the PES hot melt adhesive film of the dried material, wherein the coating thickness is 0.7cm, and standing for 6 hours;
(4) and after standing, obtaining a standing fabric, placing fabric layers on two sides of the standing fabric, and sewing and fixedly connecting elastic fibers with the diameter of 0.04mm by using a fabric sewing machine to obtain the waterproof and breathable fabric.
Example 2
The additive is any one of sodium bicarbonate and ammonium bicarbonate.
The glue is prepared by mixing hydroxypropyl methyl cellulose, carboxymethyl starch and water according to the mass ratio of 4:3: 20.
The waterproof breathable film is any one of a TPU film and a PTFE film.
The preparation method of the mixture comprises the following steps:
A. uniformly mixing the cinnamyl-containing polyimide, the modified particles and a mixed solvent according to a mass ratio of 9:3:13 to obtain a base solution;
B. and (3) ultrasonically dispersing the base solution and tetrabutyl titanate uniformly according to the mass ratio of 12:4, and vacuumizing and defoaming to obtain the mixture. The modified particles are prepared by heating titanium dioxide, graphene, sodium dodecyl benzene sulfonate and water at a mass ratio of 7:3:0.1:20 at 90 ℃ for 2h, filtering and drying.
The mixed solvent is formed by mixing ethylene glycol and acetone according to the volume ratio of 9: 3.
The fabric layer is any one of cotton fabric and silk fabric
A preparation method of a waterproof breathable fabric comprises the following steps:
(1) soaking a PES hot melt adhesive film in a 0.6mol/L hydrochloric acid solution for 1h, taking out, washing, then putting into the solution, preserving heat at 45 ℃ for 3h, adjusting the pH to 7.5, adding an additive accounting for 4% of the mass of the PES hot melt adhesive film, heating to 65 ℃, and continuing preserving heat for 2 h;
(2) after the heat preservation is finished, taking out the PES hot melt adhesive film for air drying, coating glue on one side of the air-dried PES hot melt adhesive film, covering a layer of waterproof breathable film on the glue, extruding on an extruding device, and setting the pressure to be 5kg/cm2Collecting the dried substances at the drying temperature of 83 ℃;
(3) placing the dried material in a humidifying room, setting the temperature at 55 ℃, keeping the air humidity at 75%, coating the mixture on one surface of the PES hot melt adhesive film of the dried material, wherein the coating thickness is 0.5cm, and standing for 5 hours;
(4) and after standing, obtaining a standing fabric, placing fabric layers on two sides of the standing fabric, and sewing and fixedly connecting elastic fibers with the diameter of 0.03mm by using a fabric sewing machine to obtain the waterproof breathable fabric.
Example 3
The additive is any one of sodium bicarbonate and ammonium bicarbonate.
The glue is prepared by mixing hydroxypropyl methyl cellulose, carboxymethyl starch and water according to the mass ratio of 4:3: 20.
The waterproof breathable film is any one of a TPU film and a PTFE film.
The preparation method of the mixture comprises the following steps:
A. uniformly mixing the cinnamyl-containing polyimide, the modified particles and a mixed solvent according to a mass ratio of 9:2:13 to obtain a base solution;
B. and (3) ultrasonically dispersing the base solution and tetrabutyl titanate uniformly according to the mass ratio of 12:3, and vacuumizing and defoaming to obtain the mixture. The modified particles are prepared by heating titanium dioxide, graphene, sodium dodecyl benzene sulfonate and water at a mass ratio of 7:3:0.1:20 at 90 ℃ for 2h, filtering and drying.
The mixed solvent is formed by mixing ethylene glycol and acetone according to the volume ratio of 9: 2.
The fabric layer is any one of cotton fabric and silk fabric
A preparation method of a waterproof breathable fabric comprises the following steps:
(1) soaking a PES hot melt adhesive film in a 0.6mol/L hydrochloric acid solution for 1h, taking out, washing, then putting into the solution, preserving heat at 40 ℃ for 3h, adjusting the pH to 7.5, adding an additive accounting for 3% of the mass of the PES hot melt adhesive film, heating to 60 ℃, and continuing to preserve heat for 2 h;
(2) after the heat preservation is finished, taking out the PES hot melt adhesive film for air drying, coating glue on one side of the air-dried PES hot melt adhesive film, covering a layer of waterproof breathable film on the glue, putting the PES hot melt adhesive film on extrusion equipment for extrusion, and setting the pressure to be 2kg/cm2Collecting the dried substances at the drying temperature of 80 ℃;
(3) placing the dried material in a humidifying room, setting the temperature at 50 ℃, keeping the air humidity at 70%, coating the mixture on one surface of the PES hot melt adhesive film of the dried material, wherein the coating thickness is 0.3cm, and standing for 3 hours;
(4) and after standing, obtaining a standing fabric, placing fabric layers on two sides of the standing fabric, and sewing and fixedly connecting elastic fibers with the diameter of 0.02mm by using a fabric sewing machine to obtain the waterproof breathable fabric.
The waterproof breathable fabric prepared in the embodiment is tested for breaking strength and elongation of the prepared composite coating according to GB/T3923.1-2013 part 1 of tensile property of textile fabrics, namely determination of breaking strength and elongation at break (bar method); according to GB/T5453-1997 determination of textile fabric air permeability, the air permeability of the fabric is detected, and the test results are as follows:
air permeability/(mm. s)-1) Breaking strength/N Elongation at break/%
Example 1 35.6 34.3 395
Example 2 36.3 35.1 405
Example 3 35.2 34.6 398
In conclusion, the waterproof breathable fabric prepared by the invention has better performance.

Claims (8)

1. The preparation method of the waterproof breathable fabric is characterized by comprising the following steps of:
(1) soaking a PES hot melt adhesive film in a hydrochloric acid solution, taking out, washing, then putting the PES hot melt adhesive film into the solution, preserving heat at 40-50 ℃, adjusting the pH to 7.5-8.0, adding an additive accounting for 3-6% of the mass of the PES hot melt adhesive film, raising the temperature to 60-70 ℃, and continuing preserving heat;
(2) after the heat preservation is finished, taking out the PES hot melt adhesive film for air drying, coating glue on one surface of the air-dried PES hot melt adhesive film, covering a layer of waterproof breathable film on the glue, putting the glue on extrusion equipment for extrusion, and setting the pressure to be 2-7 kg/cm2Collecting the dried substances at the drying temperature of 80-85 ℃;
(3) placing the dried material in a humidifying room, setting the temperature to be 50-60 ℃, keeping the air humidity to be 70-80%, coating a mixture on one surface of a PES hot melt adhesive film of the dried material, wherein the coating thickness is 0.3-0.7 cm, and standing for 3-6 hours;
(4) and after standing is finished, obtaining a standing fabric, placing fabric layers on two sides of the standing fabric, and sewing and fixedly connecting elastic fibers with the diameter of 0.02-0.04 mm by using a fabric sewing machine to obtain the waterproof breathable fabric.
2. The method for preparing the waterproof and breathable fabric according to claim 1, wherein the additive in the step (1) is any one of sodium bicarbonate and ammonium bicarbonate.
3. The preparation method of the waterproof and breathable fabric according to claim 1, wherein the glue in the step (2) is formed by mixing hydroxypropyl methyl cellulose, carboxymethyl starch and water according to a mass ratio of 4:3: 20.
4. The method for preparing the waterproof and breathable fabric according to claim 1, wherein the waterproof and breathable film in the step (2) is any one of a TPU film and a PTFE film.
5. The preparation method of the waterproof breathable fabric according to claim 1, wherein the preparation method of the mixture in the step (3) comprises the following steps:
A. uniformly mixing the cinnamyl-containing polyimide, the modified particles and a mixed solvent according to a mass ratio of 9: 2-4: 13 to obtain a base solution;
B. and (3) ultrasonically dispersing the base solution and tetrabutyl titanate uniformly according to the mass ratio of 12: 3-5, and vacuumizing and defoaming to obtain the mixture.
6. The preparation method of the waterproof and breathable fabric according to claim 5, wherein the modified particles in the step A are prepared by heating titanium dioxide, graphene, sodium dodecyl benzene sulfonate and water according to a mass ratio of 7:3:0.1:20, filtering and drying.
7. The preparation method of the waterproof breathable fabric according to claim 5, wherein the mixed solvent in the step A is formed by mixing ethylene glycol and acetone according to a volume ratio of 9: 2-4.
8. The preparation method of the waterproof breathable fabric according to claim 1, wherein the fabric layer in the step (4) is any one of cotton fabric and silk fabric.
CN202010025747.8A 2020-01-10 2020-01-10 Preparation method of waterproof breathable fabric Pending CN111204096A (en)

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Application publication date: 20200529