CN115403972B - Light-resistant curtain cloth and preparation method thereof - Google Patents
Light-resistant curtain cloth and preparation method thereof Download PDFInfo
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- CN115403972B CN115403972B CN202211094617.5A CN202211094617A CN115403972B CN 115403972 B CN115403972 B CN 115403972B CN 202211094617 A CN202211094617 A CN 202211094617A CN 115403972 B CN115403972 B CN 115403972B
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- 239000004744 fabric Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000002270 dispersing agent Substances 0.000 claims abstract description 55
- 239000000758 substrate Substances 0.000 claims abstract description 46
- 239000011248 coating agent Substances 0.000 claims abstract description 43
- 238000000576 coating method Methods 0.000 claims abstract description 43
- 239000010954 inorganic particle Substances 0.000 claims abstract description 39
- 230000031700 light absorption Effects 0.000 claims abstract description 35
- 239000000080 wetting agent Substances 0.000 claims abstract description 34
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 33
- 239000011347 resin Substances 0.000 claims abstract description 32
- 229920005989 resin Polymers 0.000 claims abstract description 32
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000008367 deionised water Substances 0.000 claims abstract description 26
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 26
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 18
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 68
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 59
- 239000000126 substance Substances 0.000 claims description 34
- 239000004408 titanium dioxide Substances 0.000 claims description 34
- 239000000377 silicon dioxide Substances 0.000 claims description 29
- 239000002245 particle Substances 0.000 claims description 28
- 235000012239 silicon dioxide Nutrition 0.000 claims description 28
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 16
- 229920000728 polyester Polymers 0.000 claims description 14
- 238000004049 embossing Methods 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 13
- 238000000059 patterning Methods 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 13
- 239000004925 Acrylic resin Substances 0.000 claims description 12
- 229920000178 Acrylic resin Polymers 0.000 claims description 12
- 229920001228 polyisocyanate Polymers 0.000 claims description 12
- 239000005056 polyisocyanate Substances 0.000 claims description 12
- 125000001931 aliphatic group Chemical group 0.000 claims description 11
- -1 phosphate ester salt Chemical class 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 claims description 10
- 229920000570 polyether Polymers 0.000 claims description 9
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000000344 soap Substances 0.000 claims description 7
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 6
- 239000011358 absorbing material Substances 0.000 claims description 5
- 229920001558 organosilicon polymer Polymers 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 5
- 239000004721 Polyphenylene oxide Chemical class 0.000 claims description 4
- 150000001298 alcohols Chemical class 0.000 claims description 4
- 150000008051 alkyl sulfates Chemical class 0.000 claims description 4
- 150000001408 amides Chemical class 0.000 claims description 4
- 150000002191 fatty alcohols Chemical class 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 4
- 239000004215 Carbon black (E152) Substances 0.000 claims description 3
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 229920002873 Polyethylenimine Polymers 0.000 claims description 3
- 239000004793 Polystyrene Substances 0.000 claims description 3
- 229920001400 block copolymer Polymers 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 150000004665 fatty acids Chemical class 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 125000005375 organosiloxane group Chemical group 0.000 claims description 3
- 239000010452 phosphate Substances 0.000 claims description 3
- 150000003014 phosphoric acid esters Chemical class 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229920001610 polycaprolactone Polymers 0.000 claims description 2
- 239000004632 polycaprolactone Substances 0.000 claims description 2
- 159000000000 sodium salts Chemical class 0.000 claims description 2
- 230000003373 anti-fouling effect Effects 0.000 abstract description 7
- 239000010408 film Substances 0.000 description 40
- 239000013530 defoamer Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 9
- 238000005303 weighing Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003889 chemical engineering Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920000142 Sodium polycarboxylate Polymers 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004931 aggregating effect Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
-
- 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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/004—Reflecting paints; Signal paints
-
- 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
- C09D7/47—Levelling agents
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
-
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Optics & Photonics (AREA)
- Inorganic Chemistry (AREA)
- Optical Elements Other Than Lenses (AREA)
- Laminated Bodies (AREA)
Abstract
The application discloses a light-resistant curtain cloth and a preparation method thereof, wherein the light-resistant curtain cloth comprises a substrate layer, a light absorption layer and a light reflection layer; the reflective layer coating comprises inorganic particles, a dispersing agent, a wetting agent, a defoaming agent, a leveling agent, film forming resin, a crosslinking agent and deionized water. The light-resistant curtain of the application has excellent antifouling performance, and the light-resistant curtain of the application can have excellent weather resistance under extreme environments.
Description
Technical Field
The invention belongs to the technical field of projection screens, and relates to a light-resistant curtain cloth and a preparation method thereof.
Background
The application of the light-resistant curtain relates to a plurality of fields such as movies, education, household use, business use and the like, and in recent years, along with the increasing attention of people to the laser television, the market as a curtain of other matched products is also increasing. As one type of light-resistant projection curtain, black grating projection curtain mainly uses the physical structure of an optical prism unit, wherein a light absorption layer is coated on the side of the prism facing the ambient light, and a reflective layer is coated on the side of the prism facing the projection light, so as to inhibit the interference of the ambient light. For example, patent CN201811502113.6 provides a light-resistant curtain and a method for preparing the same, a substrate layer and an optical prism array disposed on the front surface of the substrate layer, wherein the upper side surface of the prism is provided with a light-absorbing roughened microstructure, and the lower side surface of the prism is coated with a light-reflecting coating. Patent CN201822061262.5 provides a high contrast projection screen, in which a prism structure is formed on the front surface of a substrate layer, a roughened microstructure with light absorption is disposed on the upper side of the prism structure, and a reflective coating is coated on the lower side of the prism structure.
The existing manufacturing method of the black grating projection curtain is mainly characterized in that a light absorption layer and a light reflection layer are respectively arranged on the upper surface and the lower surface of an optical prism structure, then a light-resistant curtain is manufactured and fixed in various use scenes, the light-resistant curtain is an optical prism structure and comprises a continuous micro-unit structure, dust or water drops are easily dropped on the micro-unit structure when the light-resistant curtain is placed in the environment for a long time, particularly the light-resistant curtain is dropped on the light reflection layer, the light reflection effect is poor, and therefore the projection effect is affected. And the light-resistant curtain cloth micro-unit structure is placed in the environment, and the service life of the light reflecting layer of the light-resistant curtain cloth micro-unit structure is reduced when the light-resistant curtain cloth micro-unit structure meets extreme environments.
In summary, how to provide a light-resistant curtain cloth and a preparation method thereof are the problems to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a light-resistant curtain cloth and a preparation method thereof, wherein the light-resistant curtain cloth has excellent antifouling performance and excellent weather resistance in extreme environments.
In order to achieve the above purpose, the present invention proposes the following technical scheme: the light-resistant curtain cloth comprises a light-reflecting layer, wherein the light-reflecting layer is formed by curing the following light-reflecting paint, and the light-reflecting paint comprises the following substances in parts by weight:
40-60 parts of inorganic particles
0.5 to 1.0 part of dispersing agent
0.1 to 0.5 part of wetting agent
0.1 to 0.5 part of defoaming agent
0.5 to 1.0 part of flatting agent
20-40 parts of film forming resin
1.0 to 3.0 parts of cross-linking agent
10-20 parts of deionized water;
wherein the inorganic particles are a mixture of silicon dioxide and titanium dioxide, and the ratio of the silicon dioxide to the titanium dioxide is 1: (2-10).
As an improved technical scheme, the particle size of the titanium dioxide is 200-700 nanometers, and the particle size of the silicon dioxide is 50-200 nanometers.
As the improved technical scheme, the dispersing agent is one or more of polyester dispersing agent, oligomeric soap dispersing agent and polymer dispersing agent in any weight ratio; the polyester dispersing agent is modified polyester; the oligomeric soap dispersing agent is one or a plurality of polycarboxylic acid sodium salt, phosphate ester salt and polycaprolactone polyol-polyethyleneimine block copolymer in any weight ratio; the high molecular dispersing agent is one or two of polystyrene and polyethylene glycol in any weight ratio.
As the improved technical scheme, the wetting agent is one or more of alkyl sulfate, sulfonate, polyoxyethylene alkylphenol ether and polyoxyethylene fatty alcohol ether in any weight ratio.
As an improved technical scheme of the application, the defoaming agent is one or more of higher alcohols, fatty acids and salts thereof, phosphate esters, hydrocarbon oils, polyethers, organosilicon polymers and amides in any weight ratio.
As an improved technical scheme, the leveling agent is one or more of polydimethyl modified siloxane, polyether polyester modified organosiloxane and alkyl modified organosiloxane in any weight ratio.
As an improved technical scheme of the application, the film forming resin is aqueous acrylic resin, and the cross-linking agent is aliphatic polyisocyanate.
As the improved technical scheme of the application, the substrate layer is an optical prism array, the optical prism array is formed by closely arranging a plurality of prisms, and the cross section of the prisms along the horizontal direction is triangular.
As the technical scheme of this application improvement, including substrate layer, reflector layer and light-absorbing layer, the reflector layer coating is in the downside of the triangle-shaped prism in the substrate layer, the light-absorbing layer coating is in the upside of the triangle-shaped prism in the substrate layer, the light-absorbing layer is a light-absorbing material.
As an improved technical scheme of the application, the thickness of the light absorption layer is smaller than that of the reflecting layer.
Another object of the present application is to provide a method for preparing a light-resistant curtain, including:
a preparation of a substrate layer
Patterning the substrate through an embossing roller to form a prism array with a triangular cross section along the horizontal direction, so as to obtain a substrate layer;
b preparation of light absorbing layer
Black TPU material or light-absorbing material such as carbon black, iron black and the like is selected to obtain a light-absorbing layer or light-absorbing layer coating;
c preparing a reflecting layer
Respectively adding deionized water, a dispersing agent, a wetting agent, inorganic particles, a defoaming agent, film forming resin, a leveling agent and a crosslinking agent according to a certain proportion, and mixing and stirring to prepare the reflective layer coating;
d, obtaining the light-resistant curtain cloth
And coating the light absorption layer and the light reflection layer on the upper side surface and the lower side surface of the triangular prism respectively to obtain the light-resistant curtain cloth.
The beneficial effects are that:
1. according to the technical scheme, the reflective layer coating comprises inorganic particles, a dispersing agent, a wetting agent, a defoaming agent, a leveling agent, film forming resin, a cross-linking agent and deionized water, wherein the reflective layer with an antifouling and excellent weather resistance structure is formed after the reflective layer coating is cured, and meanwhile, the inorganic particles in the reflective layer coating can interact with modified organosilicon leveling agent components, so that key technical points for solving technical problems of the background technology are brought into play.
2. According to the invention, silica particles are added into the reflecting layer, and the dosage proportion of titanium dioxide to silica is controlled (2-10): 1, mixing a certain amount of silicon dioxide under the titanium dioxide as a main body, improving the reflection effect by utilizing the high whiteness of the titanium dioxide, and enabling the surface of the reflecting layer to be more compact and fine due to the high fluidity and small-size effect of the silicon dioxide, and enabling the reflecting layer coating to have antifouling performance on the premise of not influencing the reflection effect.
3. The invention provides a light-resistant curtain cloth and a preparation method thereof, wherein silicon dioxide particles are added into a light-reflecting layer, so that the weather resistance of the light-reflecting layer is improved, and the light-reflecting layer cannot fall off and yellow due to high temperature or high humidity.
4. The invention provides an anti-light curtain and a preparation method thereof, wherein a modified organosilicon leveling agent is added into a reflecting layer, so that the surface tension of coating liquid of the reflecting layer is reduced, the surface flow capacity is controlled, the smoothness of the surface of the reflecting layer is further improved, and the antifouling property is further improved.
It should be understood that all combinations of the foregoing concepts, as well as additional concepts described in more detail below, may be considered a part of the inventive subject matter of the present disclosure as long as such concepts are not mutually inconsistent.
The foregoing and other aspects, embodiments, and features of the present teachings will be more fully understood from the following description, taken together with the accompanying drawings. Other additional aspects of the invention, such as features and/or advantages of the exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the embodiments according to the teachings of the invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of a light-resistant curtain;
in the figure, 1, a substrate layer; 2. a light absorbing layer; 3. and a light reflecting layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
A light-resistant curtain cloth comprises a substrate layer, a light absorption layer and a light reflection layer; the reflective layer coating comprises inorganic particles, a dispersing agent, a wetting agent, a defoaming agent, a leveling agent, film forming resin, a crosslinking agent and deionized water, wherein the contents of the components are as follows: 40-60 parts of inorganic particles, 0.5-1 part of dispersing agent, 0.1-0.5 part of wetting agent, 0.1-0.5 part of defoamer, 0.5-1 part of flatting agent, 20-40 parts of film forming resin, 1-3 parts of cross-linking agent and 10-20 parts of deionized water.
Wherein the inorganic particles are a mixture of titanium dioxide and silicon dioxide, and the proportion of the two is (2-10): 1, the ratio of the two examples is one of 2:1, 3:1, 4:1, 5:1, 6:1, 7:1, 8:1, 9:1, 10:1. Preferably, the ratio of the titanium dioxide to the silicon dioxide is 4:1 or 5:1, the particle size of the titanium dioxide is 200-700 nanometers, the particle size is too large, so that the titanium dioxide particles are agglomerated, the particle size of the silicon dioxide is 50-200 nanometers, the particle size is less than or equal to the titanium dioxide, and the titanium dioxide can be uniformly dispersed in the titanium dioxide coating liquid, so that the surface is more compact and fine.
The dispersing agent is one or more of polyester dispersing agent, oligomeric soap dispersing agent and high molecular dispersing agent. The polyester-based dispersant is a modified polyester, exemplified: HS-240, synthetic chemical industry (polyester dispersant); the oligomeric soap dispersing agent is one or more of sodium polycarboxylate, phosphate, and polyhexamethylene polyol-polyethyleneimine block copolymer with any weight ratio, such as SN-5040, and nopodiaceae (oligomeric soap dispersing agent); the polymer dispersant is one or more of polystyrene and polyethylene glycol, and examples thereof include BYK-110, german Pick (polymer dispersant), KP-110 and De (polymer dispersant). Because the addition amount of the inorganic particles is large, the inorganic particles can be prevented from mutually aggregating and settling by adding the dispersing agent.
The wetting agent is one or more of alkyl sulfate, sulfonate, polyoxyethylene alkylphenol ether and polyoxyethylene fatty alcohol ether in any weight ratio. Examples: EAC-70, lichen chemical (alkyl sulfate), 2A1, dow chemical (sulfonate), OP-10P, donghui chemical (polyoxyethylene alkylphenol ether), AE0-7, and Bafus (polyoxyethylene fatty alcohol ether); because the particle size of the added inorganic particles is smaller, the surface energy of the inorganic particles is reduced by adding a wetting agent, so that the inorganic particles are more easily soaked by water. The wetting agent is added before inorganic particles are added, so that the addition amount of deionized water is reduced, the solid content of the reflective layer coating is improved, and the solid content of the reflective layer coating is 60% -80%.
The defoamer is one or more of higher alcohols, fatty acids and salts thereof, phosphate esters, hydrocarbon oils, polyethers, organosilicon polymers and amides in any weight ratio. Examples: d-80, field chemistry (higher alcohols), DF-103, dow chemistry (polyethers), AFE-1520, dow Corning (organosilicon polymers), KYC-713, keying chemistry (amides). Since the light-reflecting layer is an aqueous system, bubbles generated by stirring can be reduced by adding an antifoaming agent. Preferably, the defoamer is selected from polyethers and organosilicon polymers with better effect.
The leveling agent is one or more of polydimethyl modified siloxane, polyether polyester modified organosiloxane and alkyl modified organosiloxane. Examples: JF-203, good care chemical industry (polydimethyl modified siloxane), DC-57, dakaning (alkyl modified organic siloxane), BYK-333, pick chemistry (polyether polyester modified organic siloxane), and by adding a leveling agent, the surface tension of the coating liquid of the reflecting layer can be reduced, the surface flow capacity can be controlled, and the leveling agent is modified organic silicon, so that the smoothness of the surface of a film forming material can be improved.
The film forming resin is aqueous acrylic resin, and the cross-linking agent is aliphatic polyisocyanate.
The substrate layer is an optical prism array, the optical prism array is formed by closely arranging a plurality of prisms, and the cross section of each prism along the horizontal direction is triangular. Preferably, the material of the substrate layer is a black TPU film.
As shown in fig. 1, the light-resistant curtain cloth comprises a substrate layer 1, a light reflecting layer 2 and a light absorbing layer 3, wherein the light reflecting layer is coated on the lower side surface of the triangular prism in the substrate layer, the light absorbing layer is coated on the upper side surface of the triangular prism in the substrate layer, and the light absorbing layer is made of a light absorbing material. The thickness of the light absorption layer is smaller than that of the light reflection layer, and the light absorption layer and the light reflection layer are respectively coated on the upper edge and the lower edge of the triangular prism, so that the light absorption layer has an external stray light resisting effect, the light reflection layer has a reflection projection effect, and the thickness of the light absorption layer is smaller than that of the light reflection layer in order to achieve a better projection effect.
Another object of the present application is to provide a method for preparing a protective film, including:
a preparation of a substrate layer
Patterning the substrate through an embossing roller to form a prism array with a triangular cross section along the horizontal direction, so as to obtain a substrate layer;
b preparation of light absorbing layer
Black TPU material or light-absorbing material such as carbon black, iron black and the like is selected to obtain the light-absorbing layer or light-absorbing layer coating.
C preparing a reflecting layer
Adding deionized water, a dispersing agent, a wetting agent, inorganic particles, a defoaming agent, film forming resin, a leveling agent and a crosslinking agent respectively in sequence, mixing and stirring to prepare a reflective layer coating;
d, obtaining the light-resistant curtain cloth
And coating the light absorption layer and the light reflection layer on the upper side surface and the lower side surface of the triangular prism respectively to obtain the light-resistant curtain cloth.
The following is a clear and complete description of the technical solutions of the present application in connection with specific implementations.
Example 1
Firstly, preparing a reflecting layer, weighing 10 parts of deionized water, 40 parts of inorganic particles (titanium dioxide: silicon dioxide=4:1, titanium dioxide particle size 200 nanometers, silicon dioxide particle size 50 nanometers), 0.5 part of dispersing agent (HS-240, hesheng chemical industry), 0.1 part of wetting agent (EAC-70, lichen chemical industry), 0.1 part of defoamer (D-80, field chemical industry), 0.5 part of flatting agent (DC-57, dow Corning), 20 parts of film forming resin (aqueous acrylic resin), 1 part of cross-linking agent (aliphatic polyisocyanate), and mixing and stirring the mixture to prepare the reflecting layer coating, wherein the addition sequence of the dispersing agent, the wetting agent, the inorganic particles, the defoamer, the film forming resin, the flatting agent and the cross-linking agent is deionized water, the dispersing agent, the wetting agent, the inorganic particles, the defoamer, the film forming resin.
And preparing a substrate layer, heating and softening the black TPU film to a molten state, performing patterning treatment through an embossing roller to form a prism array with a triangular cross section along the horizontal direction, obtaining the substrate layer, and finally respectively coating a light absorption layer and a light reflection layer on the upper side surface and the lower side surface of the triangular prism, wherein the thickness of the light absorption layer is smaller than that of the light reflection layer, and obtaining the light-resistant curtain.
Example 2
Firstly, preparing a reflective layer, weighing 15 parts of deionized water, 50 parts of inorganic particles (titanium dioxide: silicon dioxide=2:1, titanium dioxide particle size 300 nanometers, silicon dioxide particle size 100 nanometers), 0.7 part of dispersing agent (SN-5040, nopraceae), 0.3 part of wetting agent (2A 1 Dow chemical 0.1 part, EAC-70 Lichen chemical 0.2 part), 0.25 part of defoaming agent (DF-103, dow chemical) 0.6 part of flatting agent (JF-203, good Jia chemical) 0.6 part, 30 parts of film forming resin (aqueous acrylic resin), 2.1 parts of cross-linking agent (fatty group polyisocyanate), and mixing and stirring the components in the sequence of deionized water, dispersing agent, wetting agent, inorganic particles, defoaming agent, film forming resin, flatting agent and cross-linking agent to prepare the reflective layer coating.
And preparing a substrate layer, heating and softening the black TPU film to a molten state, performing patterning treatment through an embossing roller to form a prism array with a triangular cross section along the horizontal direction, obtaining the substrate layer, and finally respectively coating a light absorption layer and a light reflection layer on the upper side surface and the lower side surface of the triangular prism, wherein the thickness of the light absorption layer is smaller than that of the light reflection layer, and obtaining the light-resistant curtain.
Example 3
Firstly, preparing a reflecting layer, weighing 56 parts of inorganic particles (titanium dioxide: silicon dioxide=5:1, titanium dioxide particle size 400 nanometers, silicon dioxide particle size 150 nanometers), 0.7 part of dispersing agent (BYK-110, german Pick), 0.2 part of wetting agent (OP-10P, donghui chemical industry), 0.05 part of defoaming agent (AFE-1520 Dow Corning, 0.1 part of DF-103 Dow chemical industry), 0.15 part of leveling agent (BYK-333 Pick chemical industry, 0.1 part of JF-203 good chemical industry, 0.55 part of JF-203 good chemical industry), 26 parts of film forming resin (aqueous acrylic resin), 1.7 parts of cross-linking agent (aliphatic polyisocyanate), and mixing and stirring the mixture to prepare the reflecting layer coating.
And preparing a substrate layer, heating and softening the black TPU film to a molten state, performing patterning treatment through an embossing roller to form a prism array with a triangular cross section along the horizontal direction, obtaining the substrate layer, and finally respectively coating a light absorption layer and a light reflection layer on the upper side surface and the lower side surface of the triangular prism, wherein the thickness of the light absorption layer is smaller than that of the light reflection layer, and obtaining the light-resistant curtain.
Example 4
Firstly, preparing a reflective layer, namely weighing 17 parts of deionized water, 55 parts of inorganic particles (titanium dioxide: silicon dioxide=5:1, titanium dioxide particle size 500 nanometers, silicon dioxide particle size 150 nanometers), 0.9 part of dispersing agent (HS-240, hesheng chemical engineering), 0.4 part of wetting agent (AE 0-7, baffs), 0.35 part of defoamer (KYC-713, kesheng chemical engineering), 0.8 part of flatting agent (DC-57, dow Corning), 35 parts of film forming resin (aqueous acrylic resin), 2.5 parts of cross-linking agent (aliphatic polyisocyanate), and mixing and stirring the components in the order of deionized water, dispersing agent, wetting agent, inorganic particles, defoamer, film forming resin, flatting agent and cross-linking agent to prepare the reflective layer coating.
And preparing a substrate layer, heating and softening the black TPU film to a molten state, performing patterning treatment through an embossing roller to form a prism array with a triangular cross section along the horizontal direction, obtaining the substrate layer, and finally respectively coating a light absorption layer and a light reflection layer on the upper side surface and the lower side surface of the triangular prism, wherein the thickness of the light absorption layer is smaller than that of the light reflection layer, and obtaining the light-resistant curtain.
Example 5
Firstly, preparing a reflective layer, weighing 20 parts of deionized water, 60 parts of inorganic particles (titanium dioxide: silicon dioxide=10:1, titanium dioxide particle size 700 nanometers, silicon dioxide particle size 200 nanometers), 1 part of dispersing agent (HS-240, hesheng chemical industry), 0.5 part of wetting agent (EAC-70, lichen chemical industry), 0.5 part of defoaming agent (D-80, field chemical industry), 1 part of leveling agent (DC-57, dow Corning), 40 parts of film forming resin (aqueous acrylic resin), 3 parts of cross-linking agent (aliphatic polyisocyanate), and mixing and stirring the components in the addition sequence of deionized water, dispersing agent, wetting agent, inorganic particles, defoaming agent, film forming resin, leveling agent and cross-linking agent to prepare the reflective layer coating.
And preparing a substrate layer, heating and softening the black TPU film to a molten state, performing patterning treatment through an embossing roller to form a prism array with a triangular cross section along the horizontal direction, obtaining the substrate layer, and finally respectively coating a light absorption layer and a light reflection layer on the upper side surface and the lower side surface of the triangular prism, wherein the thickness of the light absorption layer is smaller than that of the light reflection layer, and obtaining the light-resistant curtain.
Comparative example 1
Firstly, preparing a reflective layer, weighing 10 parts of deionized water, 40 parts of inorganic particles (titanium dioxide, titanium dioxide with the particle size of 200 nanometers), 0.5 part of dispersing agent (HS-240, hesheng chemical industry), 0.1 part of wetting agent (EAC-70, lichen chemical industry), 0.1 part of defoamer (D-80, field chemical industry), 0.5 part of flatting agent (DC-57, dakangning), 20 parts of film forming resin (aqueous acrylic resin), 1 part of cross-linking agent (aliphatic polyisocyanate), and mixing and stirring the materials in the addition sequence of the deionized water, the dispersing agent, the wetting agent, the inorganic particles, the defoamer, the film forming resin, the flatting agent and the cross-linking agent to prepare the reflective layer coating.
And preparing a substrate layer, heating and softening the black TPU film to a molten state, performing patterning treatment through an embossing roller to form a prism array with a triangular cross section along the horizontal direction, obtaining the substrate layer, and finally respectively coating a light absorption layer and a light reflection layer on the upper side surface and the lower side surface of the triangular prism, wherein the thickness of the light absorption layer is smaller than that of the light reflection layer, and obtaining the light-resistant curtain.
Comparative example 2
Firstly, preparing a reflecting layer, weighing 10 parts of deionized water, 40 parts of inorganic particles (titanium dioxide: silicon dioxide=15:1, titanium dioxide particle size 200 nanometers, silicon dioxide particle size 50 nanometers), 0.5 part of dispersing agent (HS-240, hesheng chemical industry), 0.1 part of wetting agent (EAC-70, lichen chemical industry), 0.1 part of defoamer (D-80, field chemical industry), 0.5 part of flatting agent (DC-57, dow Corning), 20 parts of film forming resin (aqueous acrylic resin), 1 part of cross-linking agent (aliphatic polyisocyanate), and mixing and stirring the mixture to prepare the reflecting layer coating, wherein the addition sequence of the dispersing agent, the wetting agent, the inorganic particles, the defoamer, the film forming resin, the flatting agent and the cross-linking agent is deionized water, the dispersing agent, the wetting agent, the inorganic particles, the defoamer, the film forming resin.
And preparing a substrate layer, heating and softening the black TPU film to a molten state, performing patterning treatment through an embossing roller to form a prism array with a triangular cross section along the horizontal direction, obtaining the substrate layer, and finally respectively coating a light absorption layer and a light reflection layer on the upper side surface and the lower side surface of the triangular prism, wherein the thickness of the light absorption layer is smaller than that of the light reflection layer, and obtaining the light-resistant curtain.
Comparative example 3
Firstly, preparing a reflecting layer, weighing 10 parts of deionized water, 40 parts of inorganic particles (titanium dioxide: silicon dioxide=4:1, titanium dioxide particle size 1 micron, silicon dioxide particle size 2 micron), 0.5 part of dispersing agent (HS-240, hesheng chemical industry), 0.1 part of wetting agent (EAC-70, lichen chemical industry), 0.1 part of defoamer (D-80, field chemical industry), 0.5 part of flatting agent (DC-57, dow Corning), 20 parts of film forming resin (aqueous acrylic resin), 1 part of cross-linking agent (aliphatic polyisocyanate), and mixing and stirring the mixture to prepare the reflecting layer coating, wherein the addition sequence of the dispersing agent, the wetting agent, the inorganic particles, the defoamer, the film forming resin, the flatting agent and the cross-linking agent is deionized water, the dispersing agent, the wetting agent, the inorganic particles, the defoamer, the film forming resin.
And preparing a substrate layer, heating and softening the black TPU film to a molten state, performing patterning treatment through an embossing roller to form a prism array with a triangular cross section along the horizontal direction, obtaining the substrate layer, and finally respectively coating a light absorption layer and a light reflection layer on the upper side surface and the lower side surface of the triangular prism, wherein the thickness of the light absorption layer is smaller than that of the light reflection layer, and obtaining the light-resistant curtain.
Comparative example 4
Firstly, preparing a reflecting layer, weighing 10 parts of deionized water, 40 parts of inorganic particles (titanium dioxide: silicon dioxide=4:1, titanium dioxide particle size 200 nanometers, silicon dioxide particle size 50 nanometers), 0.5 part of dispersing agent (HS-240, hesheng chemical industry), 0.1 part of wetting agent (EAC-70, lichen chemical industry), 0.1 part of defoaming agent (D-80, field chemical industry), 0.5 part of leveling agent (non-modified organic silicon, acrylic acid modified copolymer, 8090, japanese ponding), 20 parts of film forming resin (aqueous acrylic resin), 1 part of cross-linking agent (aliphatic polyisocyanate), and mixing and stirring the components in the addition sequence of deionized water, dispersing agent, wetting agent, inorganic particles, defoaming agent, film forming resin, leveling agent and cross-linking agent to prepare the reflecting layer coating.
And preparing a substrate layer, heating and softening the black TPU film to a molten state, performing patterning treatment through an embossing roller to form a prism array with a triangular cross section along the horizontal direction, obtaining the substrate layer, and finally respectively coating a light absorption layer and a light reflection layer on the upper side surface and the lower side surface of the triangular prism, wherein the thickness of the light absorption layer is smaller than that of the light reflection layer, and obtaining the light-resistant curtain.
Comparative example 5
The light-resistant curtain sold in the market (taiwan and the black gate curtain of the interpretation) is taken.
The evaluation method comprises the following steps:
antifouling properties: taking the light-resistant curtains manufactured in the examples and the comparative examples, respectively scattering colored powder into the screens, observing the residual powder on the surfaces of the light-resistant curtains, and then projecting by using a laser projector to observe the imaging appearance of the light-resistant curtains.
Weather resistance: the light-resistant curtains prepared in examples and comparative examples were placed in a high-temperature and high-humidity cabinet (85 ℃ C., 85% rh) for 1000 hours, respectively, and the appearance of the light-reflective layer of the light-resistant curtains was observed after taking out.
The evaluation data are shown in table 1 below:
TABLE 1
The results of the above examples and comparative examples show that the light-resistant curtain cloth prepared by the present invention has good antifouling performance and good weather resistance under high temperature and high humidity conditions.
While the invention has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present invention. Accordingly, the scope of the invention is defined by the appended claims.
Claims (8)
1. The light-resistant curtain is characterized by comprising a substrate layer, a light reflecting layer and a light absorbing layer, wherein the light reflecting layer is formed by curing the following light reflecting paint, and the light reflecting paint comprises the following substances in parts by weight:
40-60 parts of inorganic particles
0.5 to 1.0 part of dispersing agent
0.1 to 0.5 part of wetting agent
0.1 to 0.5 part of defoaming agent
0.5 to 1.0 part of flatting agent
20-40 parts of film forming resin
1.0 to 3.0 parts of cross-linking agent
10-20 parts of deionized water;
wherein the inorganic particles are a mixture of silicon dioxide and titanium dioxide, and the ratio of the silicon dioxide to the titanium dioxide is 1: (2-10); the particle size of the titanium dioxide is 200-700 nanometers, and the particle size of the silicon dioxide is 50-200 nanometers;
the substrate layer is obtained by patterning a substrate through an embossing roller to form a prism array with a triangular cross section along the horizontal direction;
the substrate layer is an optical prism array, the optical prism array is formed by closely arranging a plurality of prisms, and the cross section of each prism along the horizontal direction is triangular;
the reflecting layer is coated on the lower side surface of the triangular prism; the light absorption layer is coated on the upper side surface of the triangular prism to obtain light-resistant curtain cloth;
the film forming resin is aqueous acrylic resin, and the cross-linking agent is aliphatic polyisocyanate.
2. The light-resistant curtain according to claim 1, wherein the dispersing agent is one or more of polyester dispersing agent, oligomeric soap dispersing agent and polymer dispersing agent in any weight ratio; the polyester dispersing agent is modified polyester; the oligomeric soap dispersing agent is one or a plurality of polycarboxylic acid sodium salt, phosphate ester salt and polycaprolactone polyol-polyethyleneimine block copolymer in any weight ratio; the high molecular dispersing agent is one or two of polystyrene and polyethylene glycol in any weight ratio.
3. The light-resistant curtain according to claim 1, wherein the wetting agent is one or more of alkyl sulfate, sulfonate, polyoxyethylene alkylphenol ether and polyoxyethylene fatty alcohol ether in any weight ratio.
4. The light-resistant curtain according to claim 1, wherein the defoaming agent is one or more of higher alcohols, fatty acids and salts thereof, phosphate esters, hydrocarbon oils, polyethers, organosilicon polymers and amides in any weight ratio.
5. The light-resistant curtain according to claim 1, wherein the leveling agent is one or more of polydimethyl modified siloxane, polyether polyester modified organosiloxane and alkyl modified organosiloxane in any weight ratio.
6. The light-resistant curtain of claim 1 wherein the light-absorbing layer is a light-absorbing material.
7. The light-resistant curtain of claim 6, wherein the light-absorbing layer has a thickness less than the reflective layer.
8. A method of making the light resistant curtain of any one of claims 1-7, comprising:
a preparation of a substrate layer
Patterning the substrate through an embossing roller to form a prism array with a triangular cross section along the horizontal direction, so as to obtain a substrate layer;
b preparation of light absorbing layer
Selecting black TPU material or coating carbon black and iron black as light absorption materials to obtain a light absorption layer or light absorption layer coating;
c preparing a reflecting layer
Respectively adding deionized water, a dispersing agent, a wetting agent, inorganic particles, a defoaming agent, film forming resin, a leveling agent and a crosslinking agent according to a certain proportion, and mixing and stirring to prepare the reflective layer coating;
d, obtaining the light-resistant curtain cloth
And coating the light absorption layer and the light reflection layer on the upper side surface and the lower side surface of the triangular prism respectively to obtain the light-resistant curtain cloth.
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