CN113954454A - Shading curtain made of single-component high-temperature-resistant nano material - Google Patents

Shading curtain made of single-component high-temperature-resistant nano material Download PDF

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Publication number
CN113954454A
CN113954454A CN202111191091.8A CN202111191091A CN113954454A CN 113954454 A CN113954454 A CN 113954454A CN 202111191091 A CN202111191091 A CN 202111191091A CN 113954454 A CN113954454 A CN 113954454A
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China
Prior art keywords
film
shading
temperature
tetrahydrofuran
window shade
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CN202111191091.8A
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Chinese (zh)
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CN113954454B (en
Inventor
王鑫海
张�杰
伍小红
倪海峰
杜亮
毛新建
王路
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Zhejiang Aimanshi Smart Home Co ltd
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Zhejiang Aimanshi Smart Home 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47H—FURNISHINGS FOR WINDOWS OR DOORS
    • A47H23/00—Curtains; Draperies
    • A47H23/02—Shapes of curtains; Selection of particular materials for curtains
    • A47H23/08—Selection of particular 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/36—After-treatment
    • C08J9/365—Coating
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
    • D06M13/503—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms without bond between a carbon atom and a metal or a boron, silicon, selenium or tellurium atom
    • D06M13/507—Organic silicon compounds without carbon-silicon bond
    • 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
    • B32B2262/06—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
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • B32B2262/065—Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
    • 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
    • B32B2262/08—Animal fibres, e.g. hair, wool, silk
    • 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
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/41—Opaque
    • 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
    • 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
    • B32B2601/00—Upholstery
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • 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
    • 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
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D06M2101/06—Vegetal fibres cellulosic
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/10—Animal fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32—Polyesters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor

Abstract

The invention belongs to the field of curtains, and particularly relates to a light-shading curtain made of single-component high-temperature-resistant nano materials, which comprises a curtain fabric and a light-shading film; the shading film is a polyurethane-based film, and silicon dioxide and titanium dioxide are arranged in the shading film. The invention solves the metal defects of the existing curtain, the breathable shading effect is formed by utilizing the characteristics of folded and pressed polyurethane micropores, and meanwhile, the light reflection is improved by the silicon dioxide and the titanium dioxide, and the light transmittance of the micropores is reduced.

Description

Shading curtain made of single-component high-temperature-resistant nano material
Technical Field
The invention belongs to the field of curtains, and particularly relates to a light-shading curtain made of single-component high-temperature-resistant nano materials.
Background
The light-shading curtain is formed by replacing a light-tight or thickened fabric on the basis of the traditional curtain, so that the basic control on light is realized, the light-shading effect is realized, and the basic requirements of partial places can be met. The demands placed on window shades in most locations are increasing.
Many existing window shades are woven products formed by coating for many times or adding black shading threads in the middle. The shading effect of the shading curtains is not ideal, the heat insulation and noise reduction effects are poor, the appearance quality is not high enough, the shading curtains are generally thick and heavy, the cost is high, and the current curtain requirements cannot be met.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a shading curtain made of a single-component high-temperature-resistant nano material, which solves the metal defects of the existing curtain, and utilizes the microporous characteristic of folded and pressed polyurethane to form a ventilating shading effect, and meanwhile, the silica and the titanium dioxide improve the light reflection and reduce the light transmittance of micropores.
In order to achieve the technical purpose, the technical scheme of the invention is as follows:
a light-shading curtain made of single-component high-temperature-resistant nano materials comprises a curtain fabric and a light-shading film; the shading film is a polyurethane-based film, and silicon dioxide and titanium dioxide are arranged in the shading film.
The polyurethane-based film comprises the following components in percentage by mass: 40-50 parts of microporous polyurethane particles, 8-14 parts of titanium isopropoxide and 5-10 parts of ethyl silicate. The particle size of the microporous polyurethane particles is 500-900 nm.
The preparation method of the polyurethane-based film comprises the following steps: a1, adding titanium isopropoxide and ethyl silicate into anhydrous ether, and uniformly stirring to form a mixed dissolved solution; the concentration of the titanium isopropoxide in the anhydrous ether is 100-200g/L, and the stirring speed is 1000-2000 r/min; a2, putting microporous polyurethane particles into the mixed solution, performing ultrasonic treatment for 20-50min to obtain suspension, slowly adding tetrahydrofuran, and stirring for 2-4h in a sealed manner to obtain prefabricated slurry; the ultrasonic temperature is 5-10 ℃, the ultrasonic frequency is 50-80kHz, the adding volume of the tetrahydrofuran is consistent with the volume of the anhydrous ether, the adding speed of the tetrahydrofuran is 5-10mL/min, the sealing and stirring temperature is 10-20 ℃, and the stirring speed is 1000-2000 r/min; a3, standing the prefabricated slurry for 2-5h at constant temperature to form semi-dry slurry; then putting the film into a calender for constant-temperature drying and constant-temperature calendering to form a base film; the temperature of the constant-temperature standing is 50-60 ℃, the solvent volatilized by the standing is recovered and separated to obtain anhydrous ether and tetrahydrofuran, the temperature of the constant-temperature drying is 100-110 ℃, the temperature of the constant-temperature calendering is 120-150 ℃, the thickness of the powder formed after the drying is 900 mu m, and the thickness of the base film after the calendering is 400-600 mu m; a4, coating a tetrahydrofuran liquid film on the surface of the basement membrane, standing for 30-60min, and drying to obtain a prefabricated basement membrane; the tetrahydrofuran liquid membrane is a mixed membrane of water and tetrahydrofuran, the volume ratio of the water to the tetrahydrofuran is 1:8-10, the coating amount is 2-5mL/cm2, the standing temperature is 5-10 ℃, and the drying temperature is 120-130 ℃; the swelling heat of tetrahydrofuran to polyurethane is utilized to open polyurethane molecules, water molecules penetrate into the polyurethane molecules, the hydrolysis reaction is guaranteed, and products after hydrolysis can still be dissolved in the tetrahydrofuran; a5, folding and pressing the base film after stretching to form the porous shading film, wherein the stretching comprises longitudinal stretching and transverse stretching, the temperature of the longitudinal stretching is 140-. Based on the homogenization characteristic, the base film is folded in half to form good adhesiveness while the stability of the internal micropores is maintained, so that the homogeneous adhesion effect is achieved, and the interface is reduced.
The curtain fabric is woven or blended by one or more of cotton, hemp, polyester and real silk.
The preparation method of the window shade comprises the following steps:
step 1, uniformly coating propyl orthosilicate on a curtain fabric to form a coated fabric; the coating amount of the propyl orthosilicate is 1.5-2.5mL/cm 2;
step 2, coating tetrahydrofuran on the surface of the shading film to form a liquid film, then quickly covering the film-coated fabric, after laminating, putting the film-coated fabric into a reaction kettle to gradually raise the temperature to obtain the shading curtain, wherein the coating amount of the tetrahydrofuran is 2-4mL/cm2, the laminating pressure is 0.7-0.8MPa, the volume content of water vapor in the reaction kettle is 10-14%, and the temperature rise temperature is 130-150 ℃.
From the above description, it can be seen that the present invention has the following advantages:
1. the invention solves the metal defects of the existing curtain, the breathable shading effect is formed by utilizing the characteristics of folded and pressed polyurethane micropores, and meanwhile, the light reflection is improved by the silicon dioxide and the titanium dioxide, and the light transmittance of the micropores is reduced.
2. According to the invention, titanium dioxide and silicon dioxide in polyurethane are utilized to form a good antibacterial system, so that the antibacterial performance is effectively improved.
3. The invention utilizes the propyl orthosilicate as a cross-linking agent to form stable connection adhesion by matching with the swelling of tetrahydrofuran to polyurethane, and simultaneously, the propyl orthosilicate can form anchoring connection between the propyl orthosilicate and the polyurethane microporous film after hydrolysis under the osmosis action of the propyl orthosilicate in the tetrahydrofuran.
4. According to the invention, the precursor solution of titanium dioxide and silicon dioxide is permeated into the micropores of polyurethane by utilizing swelling permeability to serve as an anchoring filler, so that further microporosity is achieved, meanwhile, the titanium dioxide and the silicon dioxide are fully dispersed in the polyurethane, and the light permeability of the micropores is reduced.
Detailed Description
The present invention is described in detail with reference to examples, but the present invention is not limited to the claims.
Example 1
A light-shading curtain made of single-component high-temperature-resistant nano materials comprises a curtain fabric and a light-shading film; the shading film is a polyurethane-based film, and silicon dioxide and titanium dioxide are arranged in the shading film.
The polyurethane-based film comprises the following components in percentage by mass: 40 parts of microporous polyurethane particles, 8 parts of titanium isopropoxide and 5 parts of ethyl silicate. The particle size of the microporous polyurethane particles is 500 nm.
The preparation method of the polyurethane-based film comprises the following steps: a1, adding titanium isopropoxide and ethyl silicate into anhydrous ether, and uniformly stirring to form a mixed dissolved solution; the concentration of the titanium isopropoxide in the anhydrous ether is 100g/L, and the stirring speed is 1000 r/min; a2, putting microporous polyurethane particles into the mixed solution, performing ultrasonic treatment for 20min to obtain suspension, slowly adding tetrahydrofuran, and stirring for 2h in a sealed manner to obtain prefabricated slurry; the ultrasonic temperature is 5 ℃, the ultrasonic frequency is 50kHz, the volume of added tetrahydrofuran is consistent with the volume of anhydrous ether, the adding speed of tetrahydrofuran is 5mL/min, the sealing and stirring temperature is 10 ℃, and the stirring speed is 1000 r/min; a3, standing the prefabricated slurry for 2 hours at constant temperature to form semi-dry slurry; then putting the film into a calender for constant-temperature drying and constant-temperature calendering to form a base film; the temperature of constant temperature standingThe temperature is 50 ℃, the solvent volatilized by standing is recovered and separated to obtain anhydrous ether and tetrahydrofuran, the temperature for constant-temperature drying is 100 ℃, the temperature for constant-temperature calendering is 120 ℃, the thickness of the powder formed after drying is 700 mu m, and the thickness of the base membrane after calendering is 400 mu m; a4, coating a tetrahydrofuran liquid film on the surface of a basement membrane, standing for 30min, and drying to obtain a prefabricated basement membrane; the tetrahydrofuran liquid membrane is a mixed membrane of water and tetrahydrofuran, the volume ratio of the water to the tetrahydrofuran is 1:8, and the coating amount is 2mL/cm2The standing temperature is 5 ℃, and the drying temperature is 120 ℃; a5, folding and pressing the base film after stretching to form the porous shading film, wherein the stretching comprises longitudinal stretching and transverse stretching, the longitudinal stretching temperature is 140 ℃, the stretching magnification is 2 times, the transverse stretching magnification is 1 time, the temperature is 110 ℃, the pressing pressure is 0.7MPa, and the temperature is 160 ℃.
The curtain fabric is woven or blended by one or more of cotton, hemp, polyester and real silk.
The preparation method of the window shade comprises the following steps:
step 1, uniformly coating propyl orthosilicate on a curtain fabric to form a coated fabric; the coating amount of the propyl orthosilicate is 1.5mL/cm2；
Step 2, coating tetrahydrofuran on the surface of the shading film to form a liquid film, then quickly covering the film-coated fabric, pressing the film-coated fabric, putting the film-coated fabric into a reaction kettle, and gradually heating the film-coated fabric to obtain the shading curtain, wherein the coating amount of the tetrahydrofuran is 2mL/cm2The pressing pressure is 0.7MPa, the volume content of water vapor in the reaction kettle is 10%, and the temperature rise is 130 ℃.
The light transmittance of the light-shading curtain provided by the embodiment of the invention is 20%, the drapability is good, and the flexibility is good; the wear resistance is good.
Example 2
A light-shading curtain made of single-component high-temperature-resistant nano materials comprises a curtain fabric and a light-shading film; the shading film is a polyurethane-based film, and silicon dioxide and titanium dioxide are arranged in the shading film.
The polyurethane-based film comprises the following components in percentage by mass: 50 parts of microporous polyurethane particles, 14 parts of titanium isopropoxide and 10 parts of ethyl silicate. The particle size of the microporous polyurethane particles is 900 nm.
The preparation method of the polyurethane-based film comprises the following steps: a1, adding titanium isopropoxide and ethyl silicate into anhydrous ether, and uniformly stirring to form a mixed dissolved solution; the concentration of the titanium isopropoxide in the anhydrous ether is 200g/L, and the stirring speed is 2000 r/min; a2, putting the microporous polyurethane particles into the mixed solution, performing ultrasonic treatment for 50min to obtain a suspension, slowly adding tetrahydrofuran, and stirring for 4h in a sealed manner to obtain a prefabricated slurry; the ultrasonic temperature is 10 ℃, the ultrasonic frequency is 80kHz, the volume of added tetrahydrofuran is consistent with the volume of anhydrous ether, the adding speed of tetrahydrofuran is 10mL/min, the sealing and stirring temperature is 20 ℃, and the stirring speed is 2000 r/min; a3, standing the prefabricated slurry for 5 hours at constant temperature to form semi-dry slurry; then putting the film into a calender for constant-temperature drying and constant-temperature calendering to form a base film; the temperature of constant-temperature standing is 60 ℃, the solvent volatilized by standing is recovered and separated to obtain anhydrous ether and tetrahydrofuran, the temperature of constant-temperature drying is 110 ℃, the temperature of constant-temperature calendering is 150 ℃, the thickness of powder formed after drying is 900 micrometers, and the thickness of a base film after calendering is 600 micrometers; a4, coating a tetrahydrofuran liquid film on the surface of a basement membrane, standing for 60min, and drying to obtain a prefabricated basement membrane; the tetrahydrofuran liquid membrane is a mixed membrane of water and tetrahydrofuran, the volume ratio of the water to the tetrahydrofuran is 1:10, and the coating amount is 5mL/cm2The standing temperature is 10 ℃, and the drying temperature is 130 ℃; a5, folding and pressing the base film after stretching to form the porous shading film, wherein the stretching comprises longitudinal stretching and transverse stretching, the longitudinal stretching temperature is 150 ℃, the stretching magnification is 4 times, the transverse stretching magnification is 2 times, the temperature is 120 ℃, the pressing pressure is 0.9MPa, and the temperature is 170 ℃.
The curtain fabric is woven or blended by one or more of cotton, hemp, polyester and real silk.
The preparation method of the window shade comprises the following steps:
step 1, uniformly coating propyl orthosilicate on curtain fabric,forming a coated fabric; the coating amount of the propyl orthosilicate is 2.5mL/cm2；
Step 2, coating tetrahydrofuran on the surface of the shading film to form a liquid film, then quickly covering the film-coated fabric, pressing the film-coated fabric, putting the film-coated fabric into a reaction kettle, and gradually heating the film-coated fabric to obtain the shading curtain, wherein the coating amount of the tetrahydrofuran is 4mL/cm2The pressing pressure is 0.8MPa, the volume content of water vapor in the reaction kettle is 14%, and the temperature rise is 150 ℃.
The light transmittance of the light-shading curtain provided by the embodiment of the invention is 10%, the drapability is good, and the flexibility is good; the wear resistance is good.
Example 3
A light-shading curtain made of single-component high-temperature-resistant nano materials comprises a curtain fabric and a light-shading film; the shading film is a polyurethane-based film, and silicon dioxide and titanium dioxide are arranged in the shading film.
The polyurethane-based film comprises the following components in percentage by mass: 45 parts of microporous polyurethane particles, 12 parts of titanium isopropoxide and 8 parts of ethyl silicate. The particle size of the microporous polyurethane particles is 700 nm.
The preparation method of the polyurethane-based film comprises the following steps: a1, adding titanium isopropoxide and ethyl silicate into anhydrous ether, and uniformly stirring to form a mixed dissolved solution; the concentration of the titanium isopropoxide in anhydrous ether is 150g/L, and the stirring speed is 1500 r/min; a2, putting microporous polyurethane particles into the mixed solution, performing ultrasonic treatment for 40min to obtain suspension, slowly adding tetrahydrofuran, and stirring for 3h in a sealed manner to obtain prefabricated slurry; the ultrasonic temperature is 8 ℃, the ultrasonic frequency is 70kHz, the volume of added tetrahydrofuran is consistent with the volume of anhydrous ether, the adding speed of tetrahydrofuran is 8mL/min, the sealing and stirring temperature is 15 ℃, and the stirring speed is 1500 r/min; a3, standing the prefabricated slurry for 4 hours at constant temperature to form semi-dry slurry; then putting the film into a calender for constant-temperature drying and constant-temperature calendering to form a base film; the temperature of constant-temperature standing is 55 ℃, the solvent volatilized by standing is recovered and separated to obtain anhydrous diethyl ether and tetrahydrofuran, the temperature of constant-temperature drying is 105 ℃, the temperature of constant-temperature calendering is 140 ℃, and the anhydrous diethyl ether and tetrahydrofuran are formed after dryingThe thickness of the powder is 800 μm, and the thickness of the base film after the rolling is 500 μm; a4, coating a tetrahydrofuran liquid film on the surface of a basement membrane, standing for 50min, and drying to obtain a prefabricated basement membrane; the tetrahydrofuran liquid membrane is a mixed membrane of water and tetrahydrofuran, the volume ratio of the water to the tetrahydrofuran is 1:9, and the coating amount is 4mL/cm2The standing temperature is 8 ℃, and the drying temperature is 125 ℃; a5, folding and pressing the base film after stretching to form the porous shading film, wherein the stretching comprises longitudinal stretching and transverse stretching, the longitudinal stretching temperature is 145 ℃, the stretching magnification is 3 times, the transverse stretching magnification is 1 time, the temperature is 115 ℃, the pressing pressure is 0.8MPa, and the temperature is 165 ℃.
The curtain fabric is woven or blended by one or more of cotton, hemp, polyester and real silk.
The preparation method of the window shade comprises the following steps:
step 1, uniformly coating propyl orthosilicate on a curtain fabric to form a coated fabric; the coating amount of the propyl orthosilicate is 2mL/cm2；
Step 2, coating tetrahydrofuran on the surface of the shading film to form a liquid film, then quickly covering the film-coated fabric, pressing the film-coated fabric, putting the film-coated fabric into a reaction kettle, and gradually heating the film-coated fabric to obtain the shading curtain, wherein the coating amount of the tetrahydrofuran is 3mL/cm2The pressing pressure is 0.8MPa, the volume content of water vapor in the reaction kettle is 12%, and the temperature rise is 140 ℃.
The light transmittance of the light-shading curtain provided by the embodiment of the invention is 13%, the drapability is good, and the flexibility is good; the wear resistance is good.
In summary, the invention has the following advantages:
1. the invention solves the metal defects of the existing curtain, the breathable shading effect is formed by utilizing the characteristics of folded and pressed polyurethane micropores, and meanwhile, the light reflection is improved by the silicon dioxide and the titanium dioxide, and the light transmittance of the micropores is reduced.
2. According to the invention, titanium dioxide and silicon dioxide in polyurethane are utilized to form a good antibacterial system, so that the antibacterial performance is effectively improved.
3. The invention utilizes the propyl orthosilicate as a cross-linking agent to form stable connection adhesion by matching with the swelling of tetrahydrofuran to polyurethane, and simultaneously, the propyl orthosilicate can form anchoring connection between the propyl orthosilicate and the polyurethane microporous film after hydrolysis under the osmosis action of the propyl orthosilicate in the tetrahydrofuran.
4. According to the invention, the precursor solution of titanium dioxide and silicon dioxide is permeated into the micropores of polyurethane by utilizing swelling permeability to serve as an anchoring filler, so that further microporosity is achieved, meanwhile, the titanium dioxide and the silicon dioxide are fully dispersed in the polyurethane, and the light permeability of the micropores is reduced.
5. The invention utilizes the characteristic of staggered micropores on the polyurethane microporous film ensured by folding and pressing, reduces the light transmittance, and simultaneously reduces the light in the micropores by a reflection-transmission system formed by titanium dioxide and silicon dioxide, thereby improving the shading efficiency.
It should be understood that the detailed description of the invention is merely illustrative of the invention and is not intended to limit the invention to the specific embodiments described. It will be appreciated by those skilled in the art that the present invention may be modified or substituted equally as well to achieve the same technical result; as long as the use requirements are met, the method is within the protection scope of the invention.

Claims (8)

1. A shading curtain made of single-component high-temperature-resistant nano materials is characterized in that: comprises a curtain fabric and a shading film; the shading film is a polyurethane-based film, and silicon dioxide and titanium dioxide are arranged in the shading film.
2. The monocomponent high temperature resistant nanomaterial window shade of claim 1, wherein: the polyurethane-based film comprises the following components in percentage by mass: 40-50 parts of microporous polyurethane particles, 8-14 parts of titanium isopropoxide and 5-10 parts of ethyl silicate.
3. The monocomponent high temperature resistant nanomaterial window shade of claim 2, wherein: the particle size of the microporous polyurethane particles is 500-900 nm.
4. The monocomponent high temperature resistant nanomaterial window shade of claim 1, wherein: the curtain fabric is woven or blended by one or more of cotton, hemp, polyester and real silk.
5. The monocomponent high temperature resistant nanomaterial window shade of claim 1, wherein: the preparation method of the window shade comprises the following steps:
step 1, uniformly coating propyl orthosilicate on a curtain fabric to form a coated fabric;
and 2, coating tetrahydrofuran on the surface of the shading film to form a liquid film, quickly covering the film-coated fabric, pressing, and then putting the film-coated fabric into a reaction kettle to gradually increase the temperature to obtain the shading curtain.
6. The monocomponent high temperature resistant nanomaterial window shade of claim 5, wherein: the coating amount of the propyl orthosilicate in the step 1 is 1.5-2.5mL/cm2。
7. The monocomponent high temperature resistant nanomaterial window shade of claim 5, wherein: the coating amount of tetrahydrofuran in the step 2 is 2-4mL/cm2The pressure of the pressing is 0.7-0.8 MPa.
8. The monocomponent high temperature resistant nanomaterial window shade of claim 5, wherein: the volume content of the water vapor in the reaction kettle in the step 2 is 10-14%, and the temperature rise temperature is 130-.
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US6025068A (en) * 1998-02-13 2000-02-15 Ppg Industries Ohio, Inc. Inkjet printable coating for microporous materials
CN106739334A (en) * 2016-12-14 2017-05-31 江苏瀚隆家纺有限公司 A kind of light-proofness composite membrane and preparation method thereof
CN109293969A (en) * 2017-10-20 2019-02-01 浙江鸿圣纺织科技有限公司 A kind of polyurethane TPU curtain liner layer and preparation method thereof
WO2019103391A1 (en) * 2017-11-21 2019-05-31 김중백 Indoor soundproof curtain having excellent thermal insulation
CN113430840A (en) * 2021-07-05 2021-09-24 海盐旭晖纺织股份有限公司 Preparation method of sound insulation curtain

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6025068A (en) * 1998-02-13 2000-02-15 Ppg Industries Ohio, Inc. Inkjet printable coating for microporous materials
CN106739334A (en) * 2016-12-14 2017-05-31 江苏瀚隆家纺有限公司 A kind of light-proofness composite membrane and preparation method thereof
CN109293969A (en) * 2017-10-20 2019-02-01 浙江鸿圣纺织科技有限公司 A kind of polyurethane TPU curtain liner layer and preparation method thereof
WO2019103391A1 (en) * 2017-11-21 2019-05-31 김중백 Indoor soundproof curtain having excellent thermal insulation
CN113430840A (en) * 2021-07-05 2021-09-24 海盐旭晖纺织股份有限公司 Preparation method of sound insulation curtain

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