CN107880691B - Film, light-transmitting film and window film with formaldehyde removing function - Google Patents
Film, light-transmitting film and window film with formaldehyde removing function Download PDFInfo
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- CN107880691B CN107880691B CN201711239715.2A CN201711239715A CN107880691B CN 107880691 B CN107880691 B CN 107880691B CN 201711239715 A CN201711239715 A CN 201711239715A CN 107880691 B CN107880691 B CN 107880691B
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- protective coating
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 135
- 239000011253 protective coating Substances 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 20
- 239000002270 dispersing agent Substances 0.000 claims abstract description 18
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 7
- 239000003960 organic solvent Substances 0.000 claims abstract description 5
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 18
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 12
- 239000012790 adhesive layer Substances 0.000 claims description 11
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 8
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 8
- 239000004925 Acrylic resin Substances 0.000 claims description 6
- 229920000178 Acrylic resin Polymers 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- 229920005749 polyurethane resin Polymers 0.000 claims description 6
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 4
- 229910001887 tin oxide Inorganic materials 0.000 claims description 4
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052980 cadmium sulfide Inorganic materials 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 239000007789 gas Substances 0.000 abstract description 4
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 6
- 239000011941 photocatalyst Substances 0.000 description 6
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000001699 photocatalysis Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- -1 superoxide ion radical Chemical class 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic 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
- C09D133/04—Homopolymers or copolymers of esters
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—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
- C08K2003/2231—Oxides; Hydroxides of metals of tin
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
- C08K2003/3027—Sulfides of cadmium
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Catalysts (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to a film, a light-transmitting film and a window film having formaldehyde-removing function. The film with the formaldehyde removing function comprises a first base film, wherein one surface of the base film is coated with a protective coating; the protective coating comprises the following components in percentage by weight: 30% -60% of resin; 40% -60% of organic solvent; 1% -10% of dispersing agent; 1-10% of nano formaldehyde decomposition particles. According to the invention, under the condition that no additional facilities are added, natural light is utilized to continuously and stably degrade organic volatile gases such as formaldehyde and the like in the space. The effect is continuous and long. Environmental protection and low carbon.
Description
Technical Field
The invention relates to a film with formaldehyde removing function, a light-transmitting film and a window film.
Background
The removal of formaldehyde emissions from enclosed spaces has been an annoyance. At present, formaldehyde is reduced by using environment-friendly paint, adhesive and the like in buildings and vehicles, or is absorbed and removed by using special formaldehyde removing spray, equipment and activated carbon bags. Formaldehyde gas release is a long-term slow process, and all of the existing methods can only temporarily reduce the formaldehyde concentration in the space for a short time. One way of removing formaldehyde is to decompose formaldehyde using a photocatalyst. However, in practical use, the photocatalyst requires light of a specific wavelength to activate the photocatalytic action. The existing photocatalytic formaldehyde decomposer is usually prepared into spray for use. When in use, the photocatalyst is sprayed on the surfaces of walls and furniture. Such use forms often fail to achieve the desired formaldehyde removal effect. Because the photocatalyst in the room cannot contact sunlight, i.e., cannot contact light of a specific wavelength that excites the photocatalyst. Therefore, the photocatalyst lacks light with a specific wavelength, and thus the photocatalytic effect cannot be excited.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a film with formaldehyde removal function, which can decompose formaldehyde.
In order to achieve the above purpose, the present invention is realized by the following technical scheme:
the film with formaldehyde removing function comprises a first base film, wherein one surface of the base film is coated with a protective coating; the protective coating comprises the following components in percentage by weight: 30% -60% of resin; 40% -60% of organic solvent; 1% -10% of dispersing agent; 1-10% of nano formaldehyde decomposition particles.
According to one embodiment of the invention, the resin is selected from acrylic resins or polyurethane resins.
According to one embodiment of the invention, the resin is selected from the group consisting of acrylic resins WA234, WA240, PC150 or polyurethane resins PU330, PP150.
The acrylic resins WA234, WA240 of the present invention are available from Shanghai depicted blue materials technologies Inc. The acrylic PC150 is supplied by InYourSide co. Polyurethane resins PU330, PP150 are supplied by InYourSide co., ltd, both of which are commercially available.
According to one embodiment of the present invention, the organic solvent is selected from one or more of butanone, ethyl acetate, butyl acetate, toluene and cyclohexanone.
According to one embodiment of the invention, the dispersing agent is selected from one or more of dispersing agents BYK371, BYK378, BYK3777, BYK3600, BYK4665 and BYK-P104S. The above dispersants are commercially available from BYK, germany.
According to one embodiment of the present invention, the nano formaldehyde decomposition particles are selected from one or more of titanium dioxide, zinc oxide, tin oxide and cadmium sulfide.
According to one embodiment of the invention, the nano formaldehyde decomposition particles have a particle size of 1-200nm.
The invention aims to overcome the defects in the prior art and provide a light-transmitting film capable of decomposing formaldehyde.
In order to achieve the above purpose, the present invention is realized by the following technical scheme:
the light-transmitting film is characterized by comprising the film with formaldehyde removal function.
According to one embodiment of the invention, the other side of the first base film is coated with a composite adhesive layer, and the composite adhesive layer is used for adhering the second base film to the first base film; the surface of the second base film is provided with an installation adhesive layer and a release film; the release film is arranged in a tearable manner.
The invention aims to overcome the defects in the prior art and provide a window film capable of decomposing formaldehyde.
In order to achieve the above purpose, the present invention is realized by the following technical scheme:
the window film is characterized by comprising the film with formaldehyde removal function.
According to the invention, under the condition that no additional facilities are added, natural light is utilized to continuously and stably degrade organic volatile gases such as formaldehyde and the like in the space. The effect is continuous and long. Environmental protection and low carbon. The film with formaldehyde removing function is used as a window film, not only can meet the light transmission requirement, but also can utilize sunlight to excite nano formaldehyde decomposition particles to continuously generate valence band holes for decomposing formaldehyde, thereby achieving the effect of decomposing formaldehyde. The film with formaldehyde decomposition function has haze of only 1.5-3; the highest formaldehyde decomposition effect can reach 30 percent.
Drawings
FIG. 1 is a schematic diagram of a film structure with formaldehyde removal function according to the present invention.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
fig. 1 is a schematic structural view of one embodiment of a light-transmitting film according to the present invention, which includes a first base film 10. One surface of the first base film 10 is provided with a protective coating 20, and the other surface is provided with a composite adhesive layer 30, a second base film 40, a mounting adhesive layer 50 and a release film 60 in sequence. In use, the release film 60 is peeled off and the light-transmitting film is adhered to a location of use, such as a building window glass, a vehicle window, etc., using the mounting adhesive layer 50. The protective coating 20 is located in the vehicle interior or compartment and is the outer surface of the light transmissive film. The function of the glue layer 50 is to adhere the light-transmitting film in the position of use. The function of the composite glue layer 30 is to adhere the second base film 40 and the first base film 10 together. The composite adhesive layer 30, the second base film 40, the mounting adhesive layer 50 and the release film 60 may be appropriately selected according to actual use requirements, and will not be described herein.
The nano formaldehyde-removing particles used in the present invention are electronic structures of a semiconductor catalyst, and when a photon having a certain energy or a photon having energy Eg exceeding the band gap of the semiconductor is injected into the semiconductor under light irradiation, an electron is excited from the valence band NB to the conduction band CB, leaving a hole. The conduction band electron and the valence band hole in the excited state can be recombined to eliminate the input energy and heat, the electron is captured in the surface state of the material, the valence state electron is transited to the conduction band, the hole in the valence band robs hydroxyl electrons in the surrounding environment to change the hydroxyl into free radicals, and the free radicals serve as a strong oxidant to finish the degradation of organic matters (or chlorine) and kill bacteria and viruses. So that the nanometer formaldehyde-removing particles can decompose toxic and harmful substances such as formaldehyde and the like, and can sterilize and deodorize without ultraviolet rays.
A chemical reaction equation for decomposing formaldehyde by the nano-particles;
photoelectrode (e) - ) And cavity (h) + ) Is formed of (a)
Nanoparticle +hv- & gt e - +h + ………………(1)
Hydroxyl radical (. OH) and superoxide ion radical (. O) 2 - ) Is generated by (a)
O 2 +e - →·O 2 - ………………(2)
H 2 O+h + →·OH+H + ………………(3)
From O 2 - Formation of H 2 O 2
·O 2 - +H + →·HO 2 ………………(4)
·HO 2 +·HO 2 →H 2 O 2 +O 2 …………(5)
·O 2 - +·HO 2 →HO 2 - +O 2 …………(6)
HO 2 - +H + →H 2 O 2 ………………(7)
OH and O 2 - Can also pass through H 2 O 2 And (3) forming:
H 2 O 2 +e - →·OH+OH - …………(8)
H 2 O 2 +·O 2 - →·OH+OH - +O 2 ……(9)
H 2 O 2 +hv→2·OH………………(10)
H 2 O 2 →·O 2 - +2H……………(11)
the technical scheme of the protective coating 20 according to the present invention is as follows.
Example 1
The protective coating comprises the following components in percentage by weight: acrylic PC 150%; butanone 60%; dispersant BYK 3777% 2%; nano titanium dioxide 8%, particle size 1-200nm.
Example 2
The protective coating comprises the following components in percentage by weight: acrylic resin WA 240% by weight; butanone 45%; dispersant BYK 3600%; nano titanium dioxide 6%, and particle size 1-200nm.
Example 3
The protective coating comprises the following components in percentage by weight: polyurethane resin PU 330%; 58% of ethyl acetate; dispersant BYK 378%; nano tin oxide 2% and particle size 1-200nm.
Example 4
The protective coating comprises the following components in percentage by weight: acrylic PP 150% by weight; butanone 40%; dispersant BYK 3777%; 3% of nano titanium dioxide and the grain diameter is 1-200nm.
Example 5
The protective coating comprises the following components in percentage by weight: acrylic WA 234% 48%; 48% of toluene; dispersant BYK378 3%; 1% of nano titanium dioxide and 1-200nm of particle size.
Example 6
The protective coating comprises the following components in percentage by weight: acrylic PC 150%; butanone 50%; dispersant BYK 4665%; the nanometer zinc oxide has 9 percent of particle size and 1-200nm.
Example 7
The protective coating comprises the following components in percentage by weight: acrylic PC 150%; 48% of cyclohexanone; dispersant P104S 4%; 6% of nano cadmium sulfide and the grain diameter is 1-200nm.
Example 8
The protective coating comprises the following components in percentage by weight: acrylic PC 150%; cyclohexanone 55%; dispersant BYK 3600%; 5% of nano tin oxide and the grain diameter is 1-200nm.
Example 9
The protective coating comprises the following components in percentage by weight: acrylic PC 150%; toluene 40%; dispersant BYK 3600%; nanometer titanium dioxide 5%, particle size 1-200nm.
During production, the raw materials are stirred and mixed uniformly to prepare the composite coating.
Comparative example 1
The protective coating comprises the following components in percentage by weight: acrylic PC 150%; toluene 50%.
Comparative example 2
The protective coating comprises the following components in percentage by weight: acrylic PC 150%; 30% of toluene; dispersant BYK3600 10%; nano titanium dioxide 20%, particle size 1-200nm.
Example 9, comparative example 1, comparative example 2 the protective coatings were applied to the surfaces of the first base films to prepare light-transmitting films, and the haze and formaldehyde-removing effects were measured, respectively, as shown in the following table:
comparative example 1 | Example 9 | Comparative example 2 | |
HAZE HAZE% | 1.2 | 2.2 | 5-6 |
Formaldehyde removing effect (24H rear) | Has no effect | 15-25% | 35-50% |
The protective coating manufactured by the above embodiments of the invention is made into a light-transmitting film, and the haze of the light-transmitting film manufactured by the embodiments is not more than 4 percent, and the lower the haze is, the better the dispersion miscibility of the added materials is. The formaldehyde removal effect of each embodiment can reach 15% at the lowest and 30% at the highest.
According to the invention, under the condition that no additional facilities are added, natural light is utilized to continuously and stably degrade organic volatile gases such as formaldehyde and the like in the space. The effect is continuous and long. Environmental protection and low carbon. The film with formaldehyde removing function is used as a window film, not only can meet the light transmission requirement, but also can utilize sunlight to excite nano formaldehyde decomposition particles to continuously generate valence band holes for decomposing formaldehyde, thereby achieving the effect of decomposing formaldehyde. The film with formaldehyde decomposition function has haze of only 1.5-3; the highest formaldehyde decomposition effect can reach 30 percent.
The examples of the present invention are intended to be illustrative only and not to limit the scope of the claims, and other substantially equivalent substitutions will occur to those skilled in the art and are intended to be within the scope of the present invention.
Claims (2)
1. The light-transmitting film is characterized by comprising a first base film and a second base film, wherein one surface of the first base film is coated with a protective coating, the other surface of the first base film is coated with a composite adhesive layer, and the second base film and the first base film are adhered by the composite adhesive layer; the surface of the second base film is provided with an installation adhesive layer and a release film; the release film is arranged in a tearable manner; the protective coating comprises the following components in percentage by weight: 30% -60% of resin; 40% -60% of organic solvent; 1% -10% of dispersing agent; 1% -10% of nano formaldehyde decomposition particles; the resin is selected from acrylic resin or polyurethane resin; the organic solvent is selected from one or more of butanone, ethyl acetate, butyl acetate, toluene and cyclohexanone; the dispersing agent is one or more of dispersing agents BYK371, BYK378, BYK3777, BYK3600, BYK4665 and P104S; the particle size of the nano formaldehyde decomposition particles is 1-200nm, and the nano formaldehyde decomposition particles are one or more selected from titanium dioxide, zinc oxide, tin oxide and cadmium sulfide.
2. The light-transmitting film according to claim 1, wherein the resin is selected from the group consisting of WA234, WA240, and polyurethane resins produced by draand corporation as acrylic resins.
Priority Applications (1)
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CN201711239715.2A CN107880691B (en) | 2017-11-30 | 2017-11-30 | Film, light-transmitting film and window film with formaldehyde removing function |
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CN107880691B true CN107880691B (en) | 2024-03-08 |
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Citations (3)
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CN104893604A (en) * | 2015-04-21 | 2015-09-09 | 浙江省能源与核技术应用研究院 | Transparent thermal-insulation window film |
CN105385097A (en) * | 2015-12-28 | 2016-03-09 | 上海锦湖日丽塑料有限公司 | Self-formaldehyde-clearing and heat-resistant acrylonitrile butadiene styrene (ABS) material and preparation method thereof |
CN107090089A (en) * | 2017-06-09 | 2017-08-25 | 广州雷诺丽特塑料有限公司 | A kind of heat-insulated PVC film and preparation method thereof |
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CN104893604A (en) * | 2015-04-21 | 2015-09-09 | 浙江省能源与核技术应用研究院 | Transparent thermal-insulation window film |
CN105385097A (en) * | 2015-12-28 | 2016-03-09 | 上海锦湖日丽塑料有限公司 | Self-formaldehyde-clearing and heat-resistant acrylonitrile butadiene styrene (ABS) material and preparation method thereof |
CN107090089A (en) * | 2017-06-09 | 2017-08-25 | 广州雷诺丽特塑料有限公司 | A kind of heat-insulated PVC film and preparation method thereof |
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