CN106905726A - A kind of nano material with antifogging self-cleaning effect - Google Patents
A kind of nano material with antifogging self-cleaning effect Download PDFInfo
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- CN106905726A CN106905726A CN201710264654.9A CN201710264654A CN106905726A CN 106905726 A CN106905726 A CN 106905726A CN 201710264654 A CN201710264654 A CN 201710264654A CN 106905726 A CN106905726 A CN 106905726A
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- 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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- 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
- C09D5/18—Fireproof paints including high temperature resistant paints
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- 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
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- 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
- C09D7/63—Additives non-macromolecular organic
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- 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
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- 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
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
- C08K5/5419—Silicon-containing compounds containing oxygen containing at least one Si—O bond containing at least one Si—C bond
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/02—Polyalkylene oxides
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Abstract
The invention discloses a kind of nano material with antifogging self-cleaning effect, it is made up of the component of following parts by weight：25 35 parts of butyl titanate, 120 145 parts of absolute ethyl alcohol, 8 15 parts of acetic acid, 5 10 parts of nitric acid, 45 55 parts of deionized water, 35 40 parts of tetraethyl orthosilicate, 60 65 parts of hydrochloric acid solution, 95 110 parts of solvent, titanate esters are coupled 36 parts, 8 15 parts of ethylene glycol, 10 15 parts of polyethylene glycol, 5 12 parts of ammoniacal liquor, 5 10 parts of base catalyst, 6 10 parts of neutralization reagent, 10 15 parts of fluoro alkyl-silane.
Description
Technical field
The present invention relates to a kind of nano material, and in particular to a kind of nano material with antifogging self-cleaning effect.
Background technology
At present, nano material has turned into focus of concern as important Disciplinary Frontiers.In our daily lifes,
Vehicle glass, building glass, ambetti etc., are required for us frequently to go to safeguard and clean, and can be caused when safeguarding and cleaning
It is the larger wasting of resources, such as water, electricity, artificial, also there is larger potential safety hazard in high-rise building cleaning.It is same with this
When, in sleety weather, vehicle glass is easy to produce fog, influences pilot's line of vision, and this is a multiple weight of car accident
Want factor.Therefore, antifog, self-cleaning nano material preparation is most important for the sustainable development of China's economy.With
It is antifog, self-cleaning nano materials demand become increasingly conspicuous, there are some antifog, self-cleaning products in the market.However, most of anti-
Mist, self-cleaning product not only have a complex manufacturing technology, and the problems such as stability difference, and cementability between base material is poor, appearance
It is easy to fall off.Accordingly, it is difficult to keep permanent antifog, self-cleaning effect.Based on the problem that above-mentioned antifog, self-cleaning product is present, we
Have developed one kind has anti misting capability strong, and self-cleaning effect persistently, is constructed simply, antifog, the self-cleaning nano material of low cost and other advantages
Material.
The content of the invention
The technical problems to be solved by the invention are the cementability difference and stability of existing antifogging self-cleaning nano material
Also it is poor, it is unfavorable for long-term use, it is therefore intended that provide a kind of nano material with antifogging self-cleaning effect, solve existing tool
There is the problem of nano material cementability and stability difference.
The present invention is achieved through the following technical solutions：
A kind of nano material with antifogging self-cleaning effect, is made up of the component of following parts by weight：Butyl titanate 25-35
Part, absolute ethyl alcohol 120-145 parts, acetic acid 8-15 parts, nitric acid 5-10 parts, deionized water 45-55 parts, tetraethyl orthosilicate 35-40 parts,
Hydrochloric acid solution 60-65 parts, solvent 95-110 parts, 3-6 parts of titanate esters coupling, ethylene glycol 8-15 parts, polyethylene glycol 10-15 parts, ammonia
Water 5-12 parts, base catalyst 5-10 parts, neutralization reagent 6-10 parts, fluoro alkyl-silane 10-15 parts.
A kind of nano material with antifogging self-cleaning effect, the nano material is made up of the component of following parts by weight：
31 parts of butyl titanate, 132 parts of absolute ethyl alcohol, 12 parts of acetic acid, 7 parts of nitric acid, 51 parts of deionized water, 39 parts of tetraethyl orthosilicate, hydrochloric acid
62 parts of solution, 108 parts of solvent, titanate esters are coupled 5 parts, 11 parts of ethylene glycol, 12 parts of polyethylene glycol, 8 parts of ammoniacal liquor, base catalyst 8
Part, 7 parts of neutralization reagent, 12 parts of fluoro alkyl-silane.
A kind of nano material with antifogging self-cleaning effect, the base catalyst is in NaOH or caustic alcohol
Plant or various.
A kind of nano material with antifogging self-cleaning effect, the neutralization reagent is ammonium chloride and acetic acid.
A kind of nano material with antifogging self-cleaning effect, the solvent includes isopropanol or n-butanol or ethylene glycol ethyl ether
In one or more.
Further, in the present invention nano material and substrate surface with chemical bonds, it has stronger adhesive force, and
And all there is preferable adhesive force on glass, ceramics, metal, plastics, rubber, electronic component surface, according to GB/T 9286-
1998 are tested, and adhesive force reaches 0 grade.
The present invention compared with prior art, has the following advantages and advantages：
1st, a kind of nano material with antifogging self-cleaning effect of the present invention, nano coating of the invention has superior attachment
Power；
2nd, a kind of nano material with antifogging self-cleaning effect of the present invention, the present invention is containing silicon fluoride, silica and receives
Rice material, stable performance, storage stability is good, possess excellent high-low temperature resistant that inorganic material and organosilicon material have,
Ageing-resistant performance, while also as the introducing of fluoro-containing group and impart coating solvent resistant, chemically stable, lower surface can etc.
Excellent properties；
3rd, a kind of nano material with antifogging self-cleaning effect of the present invention, nano titanium oxide of the present invention and nanometer titanium dioxide
Silicon is combined, and the composite nano materials not only maintain photocatalysis and the super hydrophilicity of original titanium dioxide, and improves multiple
Close the cementability between nano material and base material, it is ensured that the fastness and wearability of antifog on base material, self-cleaning nano material.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment, the present invention is made
Further to describe in detail, exemplary embodiment of the invention and its explanation are only used for explaining the present invention, are not intended as to this
The restriction of invention.
Embodiment 1
A kind of nano material with antifogging self-cleaning effect of the present invention, is made up of the component of following parts by weight：Metatitanic acid fourth
31 parts of ester, 132 parts of absolute ethyl alcohol, 12 parts of acetic acid, 7 parts of nitric acid, 51 parts of deionized water, 39 parts of tetraethyl orthosilicate, hydrochloric acid solution 62
Part, 108 parts of solvent, titanate esters are coupled 5 parts, 11 parts of ethylene glycol, 12 parts of polyethylene glycol, 8 parts of ammoniacal liquor, 8 parts of base catalyst, neutralization
7 parts of reagent, 12 parts of fluoro alkyl-silane.The base catalyst is one or more in NaOH or caustic alcohol.In described
It is ammonium chloride and acetic acid with reagent.The solvent includes one or more in isopropanol or n-butanol or ethylene glycol ethyl ether.
Butyl titanate is added drop-wise in absolute ethyl alcohol under agitation, is sufficiently stirred for and then is sequentially added acetic acid, nitric acid to it
And deionized water, continue to stir, finally give the TiO 2 sol of stabilization.
The TiO 2 sol that will be obtained is made annealing treatment, and annealing temperature is 500 DEG C, soaking time 6 hours, Ran Housui
Stove is cooled down, and obtains titania powder, ball milling 30 hours, and the titanium dioxide granule size in powder sample is 4nm, weighs dioxy
Change titanium powder sample, distribute it in deionized water, obtain titania solution；
Tetraethyl orthosilicate is hydrolyzed under ammonia-catalyzed, the spherical nanoparticle of silica for 25nm containing particle diameter is prepared
The suspension of son, under stirring at room temperature and is added dropwise hydrochloric acid solution, is aged 30 hours, becomes to be put into after gel and done in drying box
It is dry, then drying sample is made annealing treatment, annealing temperature is 500 DEG C, and soaking time 6 hours, then furnace cooling obtains two
Silicon oxide powder, ball milling 20 hours, the silica particle sizes in powder sample are in below 10nm.
To obtain in titania solution addition solvent, be sufficiently stirred for, add silica, be stirred at a temperature of 72 DEG C
Mixing, obtains solution system；Keep the temperature and add base catalyst, make solution system pH value be 11, add fluothane
Base silane, titanate esters coupling, ethylene glycol, polyethylene glycol, continue stirring reaction 5h at a temperature of 52 DEG C, obtain clear solution；Plus
Enter neutralization reagent, make solution ph be 6.5, filtering product obtains nano material of the invention.
The adhesive force of obtained nano material is 0 grade in the present embodiment, and better than existing antifogging self-cleaning function
The adhesive force 6% of nano material, also, the high-low temperature resistant and ageing-resistant performance of nano material in the present embodiment are also preferable.
Embodiment 2
A kind of nano material with antifogging self-cleaning effect of the present invention, is made up of the component of following parts by weight：Metatitanic acid fourth
15 parts of ester, 80 parts of absolute ethyl alcohol, 4 parts of acetic acid, 1 part of nitric acid, 33 parts of deionized water, 20 parts of tetraethyl orthosilicate, 40 parts of hydrochloric acid solution,
80 parts of solvent, titanate esters are coupled 1 part, 2 parts of ethylene glycol, 5 parts of polyethylene glycol, 1 part of ammoniacal liquor, 2 parts of base catalyst, neutralization reagent 2
Part, 5 parts of fluoro alkyl-silane.The base catalyst is one or more in NaOH or caustic alcohol.The neutralization reagent
It is ammonium chloride and acetic acid.The solvent includes one or more in isopropanol or n-butanol or ethylene glycol ethyl ether.
Butyl titanate is added drop-wise in absolute ethyl alcohol under agitation, is sufficiently stirred for and then is sequentially added acetic acid, nitric acid to it
And deionized water, continue to stir, finally give the TiO 2 sol of stabilization.
The TiO 2 sol that will be obtained is made annealing treatment, and annealing temperature is 500 DEG C, soaking time 6 hours, Ran Housui
Stove is cooled down, and obtains titania powder, ball milling 30 hours, and the titanium dioxide granule size in powder sample is 4nm, weighs dioxy
Change titanium powder sample, distribute it in deionized water, obtain titania solution；
Tetraethyl orthosilicate is hydrolyzed under ammonia-catalyzed, the spherical nanoparticle of silica for 25nm containing particle diameter is prepared
The suspension of son, under stirring at room temperature and is added dropwise hydrochloric acid solution, is aged 30 hours, becomes to be put into after gel and done in drying box
It is dry, then drying sample is made annealing treatment, annealing temperature is 500 DEG C, and soaking time 6 hours, then furnace cooling obtains two
Silicon oxide powder, ball milling 20 hours, the silica particle sizes in powder sample are in below 10nm.
To obtain in titania solution addition solvent, be sufficiently stirred for, add silica, be stirred at a temperature of 72 DEG C
Mixing, obtains solution system；Keep the temperature and add base catalyst, make solution system pH value be 11, add fluothane
Base silane, titanate esters coupling, ethylene glycol, polyethylene glycol, continue stirring reaction 5h at a temperature of 52 DEG C, obtain clear solution；Plus
Enter neutralization reagent, make solution ph be 6.5, filtering product obtains nano material of the invention.
Compared with Example 1, the span of the component in embodiment 2 is real outside span of the invention for embodiment 2
Apply the poor adhesive force of obtained nano material in example 2 and matrix, and nano material high-low temperature resistant in embodiment 2 and resistance to old
Change performance also poor.
Embodiment 3
It is made up of the component of following parts by weight：31 parts of butyl titanate, 132 parts of absolute ethyl alcohol, 12 parts of acetic acid, 7 parts of nitric acid,
51 parts of deionized water, 39 parts of tetraethyl orthosilicate, 62 parts of hydrochloric acid solution, 108 parts of solvent, 8 parts of ammoniacal liquor, 8 parts of base catalyst, neutralization
7 parts of reagent.The base catalyst is one or more in NaOH or caustic alcohol.The neutralization reagent be ammonium chloride and
Acetic acid.The solvent includes one or more in isopropanol or n-butanol or ethylene glycol ethyl ether.
Butyl titanate is added drop-wise in absolute ethyl alcohol under agitation, is sufficiently stirred for and then is sequentially added acetic acid, nitric acid to it
And deionized water, continue to stir, finally give the TiO 2 sol of stabilization.
The TiO 2 sol that will be obtained is made annealing treatment, and annealing temperature is 500 DEG C, soaking time 6 hours, Ran Housui
Stove is cooled down, and obtains titania powder, ball milling 30 hours, and the titanium dioxide granule size in powder sample is 4nm, weighs dioxy
Change titanium powder sample, distribute it in deionized water, obtain titania solution；
Tetraethyl orthosilicate is hydrolyzed under ammonia-catalyzed, the spherical nanoparticle of silica for 25nm containing particle diameter is prepared
The suspension of son, under stirring at room temperature and is added dropwise hydrochloric acid solution, is aged 30 hours, becomes to be put into after gel and done in drying box
It is dry, then drying sample is made annealing treatment, annealing temperature is 500 DEG C, and soaking time 6 hours, then furnace cooling obtains two
Silicon oxide powder, ball milling 20 hours, the silica particle sizes in powder sample are in below 10nm.
To obtain in titania solution addition solvent, be sufficiently stirred for, add silica, be stirred at a temperature of 72 DEG C
Mixing, obtains solution system；Keep the temperature and add base catalyst, make solution system pH value be 11 filtering product
Obtain nano material of the invention.
Component in embodiment 3 reduces titanate esters coupling, ethylene glycol, polyethylene glycol, fluothane on the basis of embodiment 1
Base silane, however the adhesive force of nano material obtained in embodiment 3 and it is existing almost, but its solvent resistant, chemistry
The adhesive force duration of the nano material that the performances such as stabilization, surface energy are all worse than in embodiment 1, and embodiment 3 is shorter than reality
Example 1 is applied, service life is shorter.
In sum, the component in the present invention complements each other, and made in component of the invention and formula range
The adhesive force of the nano material for obtaining is optimal, and with performances such as superior solvent resistant, chemically stable, surface energy.
Above-described specific embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that and the foregoing is only specific embodiment of the invention, be not intended to limit the present invention
Protection domain, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc. all should include
Within protection scope of the present invention.
Claims (5)
1. a kind of nano material with antifogging self-cleaning effect, it is characterised in that be made up of the component of following parts by weight：Metatitanic acid
Butyl ester 25-35 parts, absolute ethyl alcohol 120-145 parts, acetic acid 8-15 parts, nitric acid 5-10 parts, deionized water 45-55 parts, positive silicic acid second
Ester 35-40 parts, hydrochloric acid solution 60-65 parts, solvent 95-110 parts, 3-6 parts of titanate esters coupling, ethylene glycol 8-15 parts, polyethylene glycol
10-15 parts, ammoniacal liquor 5-12 parts, base catalyst 5-10 parts, neutralization reagent 6-10 parts, fluoro alkyl-silane 10-15 parts.
2. a kind of nano material with antifogging self-cleaning effect according to claim 1, it is characterised in that the nanometer material
Material is made up of the component of following parts by weight：31 parts of butyl titanate, 132 parts of absolute ethyl alcohol, 12 parts of acetic acid, 7 parts of nitric acid, deionization
51 parts of water, 39 parts of tetraethyl orthosilicate, 62 parts of hydrochloric acid solution, 108 parts of solvent, titanate esters are coupled 5 parts, 11 parts of ethylene glycol, poly- second two
12 parts of alcohol, 8 parts of ammoniacal liquor, 8 parts of base catalyst, 7 parts of neutralization reagent, 12 parts of fluoro alkyl-silane.
3. a kind of nano material with antifogging self-cleaning effect according to claim 1, it is characterised in that the alkalescence is urged
Agent is one or more in NaOH or caustic alcohol.
4. a kind of nano material with antifogging self-cleaning effect according to claim 1, it is characterised in that the neutralization examination
Agent is ammonium chloride and acetic acid.
5. a kind of nano material with antifogging self-cleaning effect according to claim 1, it is characterised in that the solvent bag
Include one or more in isopropanol or n-butanol or ethylene glycol ethyl ether.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710264654.9A CN106905726A (en) | 2017-04-21 | 2017-04-21 | A kind of nano material with antifogging self-cleaning effect |
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| CN201710264654.9A CN106905726A (en) | 2017-04-21 | 2017-04-21 | A kind of nano material with antifogging self-cleaning effect |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107652863A (en) * | 2017-10-27 | 2018-02-02 | 成都瞬科仪器仪表有限公司 | A kind of nano material for being capable of antifogging self-cleaning |
| CN109603551A (en) * | 2018-12-15 | 2019-04-12 | 佛山市铁人环保科技有限公司 | A kind of photocatalysis treatment purification method preventing automobile exhaust pollution |
| CN113189681A (en) * | 2021-04-23 | 2021-07-30 | 来奇偏光科技(中国)股份有限公司 | Scratch-resistant antifogging film, lens and preparation method thereof |
| CN114365953A (en) * | 2021-12-27 | 2022-04-19 | 浙江福腾宝家居用品有限公司 | Pot cover and cooking utensil |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817858A (en) * | 2015-05-14 | 2015-08-05 | 北京中科佰卓纳米材料科技有限公司 | Preparation method of antifog and self-cleaning nanomaterial |
-
2017
- 2017-04-21 CN CN201710264654.9A patent/CN106905726A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817858A (en) * | 2015-05-14 | 2015-08-05 | 北京中科佰卓纳米材料科技有限公司 | Preparation method of antifog and self-cleaning nanomaterial |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107652863A (en) * | 2017-10-27 | 2018-02-02 | 成都瞬科仪器仪表有限公司 | A kind of nano material for being capable of antifogging self-cleaning |
| CN109603551A (en) * | 2018-12-15 | 2019-04-12 | 佛山市铁人环保科技有限公司 | A kind of photocatalysis treatment purification method preventing automobile exhaust pollution |
| CN113189681A (en) * | 2021-04-23 | 2021-07-30 | 来奇偏光科技(中国)股份有限公司 | Scratch-resistant antifogging film, lens and preparation method thereof |
| CN114365953A (en) * | 2021-12-27 | 2022-04-19 | 浙江福腾宝家居用品有限公司 | Pot cover and cooking utensil |
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Application publication date: 20170630 |