CN110330839A - Efficient non-sticky hydrophobic coating and preparation method thereof for timber, metal and frosting - Google Patents
Efficient non-sticky hydrophobic coating and preparation method thereof for timber, metal and frosting Download PDFInfo
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- CN110330839A CN110330839A CN201910614090.6A CN201910614090A CN110330839A CN 110330839 A CN110330839 A CN 110330839A CN 201910614090 A CN201910614090 A CN 201910614090A CN 110330839 A CN110330839 A CN 110330839A
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- 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
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/04—Homopolymers or copolymers of ethene
- C09D123/08—Copolymers of ethene
- C09D123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
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- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/26—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers modified by chemical after-treatment
- C09D123/28—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D127/00—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 a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/14—Homopolymers or copolymers of vinyl fluoride
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- C09D127/00—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 a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/16—Homopolymers or copolymers of vinylidene fluoride
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- C09D127/00—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 a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/18—Homopolymers or copolymers of tetrafluoroethene
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- C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
- C09D5/1668—Vinyl-type polymers
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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- 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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- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The invention discloses the efficient non-sticky hydrophobic coatings and preparation method thereof for timber, metal and frosting；By percentage to the quality, raw material forms are as follows: titanium colloidal sol 0.1-15%, fluoropolymer nano particle 0.1-15%, fluorine containing silane coupling agent 0.1-5%, wetting agent 0.1-2%, stabilizer 0.1-2%, coalescing agent 0.1-5%, remaining is dehydrated alcohol；Wherein, titanium colloidal sol is the TiO 2 sol of average grain diameter 120-200nm, and chemical composition is the ethanol solution of titanium dioxide；The average grain diameter of fluoropolymer nano particle is 10-50 nanometers.The non-sticky hydrophobic coating of the present invention makes substrate surface that close and distant alternating structure be presented, based on hydrophobic, the contact angle of coating and water, which is 116.3 °, can be such that the non-sticky performance of substrate improves to 87.4%, and the hydrophobic non-sticky coating of the present invention has component less, the advantages that preparation process is simple, low in cost.
Description
Technical field
The present invention relates to non-sticky technical field of coatings, more particularly, to a kind of for timber, metal and frosting
Efficient non-sticky hydrophobic coating and preparation method thereof.
Background technique
Timber, metal and frosting are easily stained with various dusts in industrial production, such as industrial pipeline, electric fan or logical
Air piping etc..In some pipelines or large-scale training equipment, dust is difficult to clean, and dust is attached to timber, gold for a long time
After category and frosting, even if equipment is dismantled cleaning, it is also difficult to the dust of cleaning timber, metal and frosting completely.
In addition, many buildings in China cannot clean for many years at present, causes much to build surface blot and grow wild, urgent need one
Efficient non-sticky coating is planted to solve the problems, such as this.The non-sticky performance of coating is heavily dependent on not gluing for film forming matter
Dirt performance is the key that improve the non-sticky performance of coating by design construction coating surface microstructure and surface nature.
Early in 1970s, external scientist finds that the special construction and performance tool of the lotus leaf surface in nature
There is self-cleaning function.Lotus effect is primarily referred to as lotus leaf surface with super-hydrophobic and self-cleaning characteristic.Lotus leaf epidermal cell
A kind of wax crystallization can be secreted, is observed under an electron microscope, wax crystallization shows linear or trichoid structure, in lotus
The front and back of leaf is all distributed；In addition, also having the dual coarse knot of very fine micro-nano on the surface of lotus leaf
Structure, first structure are that micron order cream is convex, and micron order cream is convex to form a kind of nanoscale protrusion again above.The wax that surface is covered with
And micro nano structure, so that hydrophobic state is presented in lotus leaf surface, and there is effect easy to clean to sludge, so as to " mud out
Without contaminating ".Since lotus leaf has surface that is hydrophobic, not absorbing water, the rainwater for falling in blade face can be because the effect of surface tension be formed
Droplet, that is to say, that water and the contact angle on blade face are higher, as long as blade face is slightly tilted, droplet will be rolled off blade face.Therefore, i.e.,
Make just to rain heavily, lotus leaf surface is always able to maintain drying；In addition, the dust that the droplet rolled can be stained with lotus leaf surface
The particles such as sludge are taken away, and self-cleaning effect is reached.Therefore, the hydrophobic performance of coating is improved, and constructs bumps in coating surface
Uneven micro-nano structure is the key that prepare to have efficient non-sticky performance coating.
Currently, having some commercialization self-cleaning coatings in the market, as Chinese invention patent ZL201510642975.9 is mentioned
For a kind of preparation method of silicate glass self-cleaning coating, first by acrylic resin, methyl phenyl silicone oil, ethylene-vinegar
Sour ethylene copolymer, methyl orthosilicate mixing, stirring obtain mixture work；Again while stirring by lignin, Isooctyl acrylate monomer,
Methyl oxirane, lanolin, sodium alginate, dipentaerythritol, carboxymethyl cellulose add in mixture work, and stirring obtains mixed
Close object II；Fluoropolymer nano particle, filler, plasticizer, surfactant, water are finally added in mixtures II, first exists
600-800rpm stirs 20-30min, then stirs 30-50min in 1200-1500rpm.The coating of the invention is in glass base
Coating hardness on material is in 2H or more, and for adhesive force up to 1 grade, wearability is excellent, and contact angle is up to 1150, use 20 months outdoors
Afterwards without any aging phenomenon such as xanthochromia, peeling, dusting.On stricti jurise, above-mentioned self-cleaning coating does not have non-sticky performance, does not have
About the test of non-sticky performance, preferably at most a kind of soil resist coatings.
Chinese invention patent application CN108299882A (2018.07.20 is disclosed) discloses a kind of with self-cleaning function
Organic-inorganic composite coating material, is prepared using following steps: make nano titanic oxide sol and silicon dioxide gel and
The reaction of Bola type silane coupling agent, then pigment and auxiliary agent are added, so that the Organic-inorganic composite coating with self-cleaning function be made
Material；Wherein, the mass ratio of silicon dioxide gel and Bola type silane coupling agent is 0.2-0.5:1, nano titanic oxide sol
Dosage be both silicon dioxide gel and Bola type silane coupling agent gross mass 3-10%.The technical principle are as follows: due to
It can be with the hydroxyl of silicon dioxide gel and titanium dioxide surface after the ionic group hydrolysis at the chain both ends of Bola type silane coupling agent
Condensation reaction occurs for base, therefore can be obtained and a series of have by using the Bola type silane coupling agent of different chain lengths
Different flexible and hardness composite coatings, this can be such that formed coating toughness enhances, effectively coating cracking be avoided to fall off；Bola
The hydrolysate of type silane coupling agent can be such that silicon dioxide gel is mutually crosslinked with nano-titanium dioxide by chemical bond, and nanometer
Titanium dioxide has good photocatalysis performance, therefore formed coating has catalytic self-cleaning ability.But the technology mainly according to
Be able to achieve by the photocatalytic of nano-titanium dioxide it is self-cleaning, realize the non-sticky effect of film it is limited.Because nano-titanium dioxide
Photocatalysis efficiency is low, and the collaboration and protection of other materials, easily shield or are not polluted and reduce its photocatalysis effect, caused
The non-sticky effect of coating is bad, and the antistick layer duration is short.
Summary of the invention
To meet the non-sticky performance requirement of timber, metal and plastics to work under dust environment, the present invention provides
A kind of efficient non-sticky hydrophobic coating and preparation method thereof for timber, metal and frosting, Paint preparation technology letter
It is single, it can make metal that there is excellent non-sticky performance in the coating of timber, metal and frosting preparation, it is especially non-sticky resistance to
Long property is excellent, the processing of timber, metal and frosting suitable for the environment such as factory, workshop, household.
It should be noted that the dirt resistance coatings of present invention meaning refer to that dust itself is not adhere to the coating of coating surface；
And existing commercial non-sticky coating is mainly self-cleaning coating, refers to that dust or dust are adhered to coating surface, is rushed by rainwater
It washes, grieshoch or dust can be washed off, so that coating is kept self-cleaning function, actually coating itself is binding dust.Call oneself part
The prior art for being dirt resistance coatings is substantially also self-cleaning coating, belongs to obscuring for concept, most by anti-dust performance and soil resistant
Performance is obscured, because such coating, at all without the test of non-sticky performance, the test of especially imperial dirt rate is not more non-sticky
Performance lasting test, preferably at most gross visualization, some tested only stain resistance energy, this is different with non-sticky performance.
For this purpose, the present invention also provides the characterizations of the non-sticky performance of non-sticky coating and quantization to test.
To achieve the above object, the technical scheme adopted by the invention is as follows:
Efficient non-sticky hydrophobic coating for timber, metal and frosting: by percentage to the quality, raw material composition
Are as follows: titanium colloidal sol 0.1-15%, fluoropolymer nano particle 0.1-15%, fluorine containing silane coupling agent 0.1-5%, wetting agent 0.1-
2%, stabilizer 0.1-2%, coalescing agent 0.1-5%, remaining is dehydrated alcohol；Wherein, titanium colloidal sol is average grain diameter 120-
The TiO 2 sol of 200nm, chemical composition are the ethanol solution of titanium dioxide；The average grain of fluoropolymer nano particle
Diameter is 10-50 nanometers.
To further realize the object of the invention, it is preferable that the fluoropolymer nano particle is polytetrafluoroethylene (PTFE)
(PTFE), Kynoar (PVDF), fluorinated ethylene propylene (FEP) (FEP), polytetrafluoroethylene (PTFE)-ethylene copolymer (ETFE), perfluoroalkoxy
Base resin (PFA), ethylene chlorotrifluoroethylene (ECTFE), polyvinyl fluoride (PVF), polytrifluorochloroethylene (PCTFE) etc. are a kind of or more
Kind.
Preferably, the fluorine containing silane coupling agent be 1H, 1H, 2H, 2H- perfluoro capryl trimethoxy silane, 1H, 1H,
2H, 2H- perfluoro capryl triethoxysilane, 1H, 1H, 2H, 2H- perfluoro decyl triethoxysilane, 1H, 1H, 2H, 2H- perfluor
One of ruthenium trimethoxysilane is a variety of.
Preferably, the wetting agent is organic silicon modified by polyether such as TEGO-245, TEGO-750, TEGO-760, TEGO-
685, one or more of BYK-306, BYK-346, DC67 and DC7244.
Preferably, the stabilizer is one or both of ethanol amine, diethanol amine, triethanolamine, acetylacetone,2,4-pentanedione
More than.
Preferably, the coalescing agent is propylene glycol monomethyl ether, propylene glycol monobutyl ether, dipropylene, isopropanol
With one of isobutanol or a variety of.
Preferably, the efficient non-sticky hydrophobic coating is light blue transparency liquid, solid content 1-15%, viscosity
For 1-5mPa.s, 6-12 month room temperature storage time；Coating application is spraying or brushes, and obtains coating.
Preferably, the coating is first dried 5-30 minutes at normal temperature, then 20-60 minutes dry at 50-80 DEG C.
Preferably, the appearance of film that the efficient non-sticky hydrophobic coating is formed is transparent smooth, with water contact angle 100-
120 °, the non-sticky property retention time is 1 year or more under working environment；Measuring the non-sticky efficiency of coating in the lab is
87.4%；Still it is able to maintain that appearance transparent is smooth and non-sticky performance after 500g/500 wear-resisting experiment；
The non-sticky performance test methods: on glass slide after prepares coating, prickly-heat powder being placed on coating, is stood
1 minute, the cated one side of glass slide is inverted, falls the nonadherent prickly-heat powder on coating sufficiently, comparison have coating and
Appearance after uncoated adherency prickly-heat powder judges the non-sticky effect of coating；
The non-sticky efficiency of the coating (imperial dirt rate) test method: on flabellum after prepares coating, flabellum is placed in wind
In road, fan is opened, and test standard gray is added in air duct, after accelerating binding dust, takes out flabellum, be coated with coating
Flabellum and uncoated blank flabellum on the dust that is enriched with collect respectively；Pass through the dust quality m of cated blade surface1
And the dust quality m of uncoated blank blade surface2；The non-sticky efficiency eta of coating=(m of blade surface coating is calculated2–
m1)/m2。
The preparation method of the efficient non-sticky hydrophobic coating for timber, metal and frosting: will be fluorine-containing poly-
It closes object nano particle to be scattered in ethanol solution, is then added in titanium colloidal sol, adds wetting agent, stabilizer, film forming and help
Agent stirs evenly at room temperature, filters and packages.
Basic principle of the invention: being that 50nm is below with average grain diameter using TiO 2 sol as main film forming substance
Fluoropolymer nano particle modifies coating, is embedded in fluoropolymer nano particle and is grown in coating of titanium dioxide
Surface forms close and distant alternate surface micro-structure, and dust can not adhere in fluoropolymer particles, though it can be adhered hydrophilic two
Titania coating, but the barrier property of the air film due to being formed between fluoropolymer nano particle contact hydrophilic dust not
It,, will since coating has photocatalysis even if lesser dust can adhere to coating of titanium dioxide surface to inorganic coating
The organic moiety of dust particle is degraded, and dust is made to be difficult to adhere to.The collaboration of said two devices, assign coating have it is excellent non-sticky
Property and non-sticky persistence advantage.
Compared with the existing technology, the invention has the advantages that and the utility model has the advantages that
1) coating prepared by the present invention has excellent non-sticky performance, and imperial dirt rate is up to 87.4%, in 500g/500
Coating is still able to maintain good non-sticky performance after secondary scouring.
2) fluoropolymer nano particle of the present invention assigns coating excellent hydrophobicity, and the water contact angle of coating is
116.3 °, on the materials such as outdoor architecture exterior wall or solar energy power generating plate, the non-sticky performance of coating is not only improved,
And can assign coating certain self-cleaning performance, and a small amount of dust of coating surface adherency, after raining or being rinsed with water, water
It can not be attached to coating surface, droplet is formed and tumble coating surface rapidly, and the dust of coating surface is taken away.
Detailed description of the invention
Fig. 1 is the non-sticky effect picture of non-sticky coating template in embodiment 1；
Fig. 2 is the effect picture of ABS flabellum non-sticky coating and blank sample in embodiment 1；
Fig. 3 is the electromicroscopic photograph of 1 prepares coating of embodiment.
Specific embodiment
For a better understanding of the invention, the present invention is further illustrated with reference to the accompanying drawings and examples, but this hair
Bright embodiment is without being limited thereto.
The efficient non-sticky hydrophobic coating for timber, metal and frosting of preparation of the embodiment of the present invention uses such as lower section
Method is characterized:
The non-sticky performance characterization of coating: on glass slide after prepares coating, a certain amount of prickly-heat powder being placed on coating, is stood
1 minute, the cated one side of glass slide is inverted, falls the nonadherent prickly-heat powder on coating sufficiently, comparison have coating and
Appearance after uncoated adherency prickly-heat powder tentatively judges the non-sticky effect of coating.
Coating drives the test of dirt rate: on flabellum after prepares coating, flabellum being placed in air duct, opens fan, and be added
Test standard gray carries out flabellum to accelerate binding dust experiment in air duct.After accelerating binding dust, flabellum is taken out, is coated with
The dust being enriched on the flabellum of coating and uncoated blank flabellum is collected respectively.Pass through the dust matter of cated blade surface
Measure m1And the dust quality m of uncoated blank blade surface2；It is η=(m that blade surface coating, which drives dirt rate,2–m1)/m2, calculate
To imperial dirt rate of blade surface coating.
Coating surface microscopic appearance and EDX ingredient are carried out by Hitachi Hitachi desk type scanning electronic microscope TM3030
Analysis；Coating surface Morphology analysis is carried out by the atomic force microscope Cypher ES of Asylum Research company；
By using the SDC-200H type contact angle instrument of Dongguan Sheng Ding precision instrument Co., Ltd, according to GB/T 30447-2003
The contact angle of testing coating and water；Film is cleaned performance and is tested according to GB/T9266-1988, i.e., under the external force of 500g, uses rag
Water is dipped in, after cleaning coating 500 times, observes the appearance and non-sticky performance of film.Film performance is according to GB/ in embodiment
The water contact angle of T30447-2003 testing coating.
Embodiment 1
Efficient non-sticky hydrophobic coating composition of raw materials for timber, metal and frosting:
1 embodiment 1 of table formula
Preparation process: sequentially adding 79.4g dehydrated alcohol, 2g titanium colloidal sol in four-hole boiling flask, makes original in 70 DEG C of stirring 1h
Material is uniformly dispersed.It is made after required titanium colloidal sol, taking-up is cooled to room temperature.It disperses 1g fluoropolymer nano particle in
In 16g dehydrated alcohol, it is added dropwise in titanium colloidal sol, and 1H is added, 1H, 2H, 2H- perfluoro capryl triethoxysilane 0.5g,
0.5g acetylacetone,2,4-pentanedione, 0.5g propylene glycol monomethyl ether and 0.1g wetting agent TEGO-245 are stirred 1 hour at room temperature, are filtered and packaged.
Coating property: appearance is light blue transparent, viscosity about 1mPa.s, solid content 4.6%；
Construction and dry: using spraying method on the electric fan of ABS material prepares coating；First it is dried at room temperature for 30
Minute, then toasted 60 minutes at 60 DEG C；
Film performance result CN108299882A coating is compared to (non-sticky dirt data are tested according to the method for this patent), test
Comparative result is as follows:
2 performance comparison of table
In table 2, the coating in embodiment 1 has hydrophobicity, and film is 116.3 ° to the contact angle of water, imperial dirt rate of coating
Up to 87.4%, for coating by 500g/500 scrubbing character test, imperial dirt rate is still higher than 60%, compared with CN108299882A,
Coating prepared by the present invention not only has excellent non-sticky performance, but also has non-sticky persistence.
Fig. 1 is the effect picture of non-sticky coating in embodiment 1, wherein 1 is the product of embodiment 1,1 coating sample is basic
It is non-sticky；2 be CN108299882A product, without non-sticky function.Fig. 2 is the effect of non-sticky coating in embodiment 1
Figure, it is blank flabellum that the more flabellum of ash quantity is glued in left side, and right side is to coat cated flabellum.When coating non-sticky painting on flabellum
Layer, and after carrying out binding dust experiment, coats cated flabellum and glues ash quantity and be considerably less than blank coating, illustrates that non-sticky coating can be with
It effectively improves flabellum and drives dirt rate, reduce surface binding dust.
Fig. 3 is the SEM electromicroscopic photograph of 1 prepares coating of embodiment, after hydrophobic fluoropolymer modified by nano particles titanium colloidal sol,
Coating surface forms a large amount of fluoropolymer particles, and radius is about 10 nanometers -50 nanometers.By preferred titanium dioxide and
Fluoropolymer particles partial size realizes that fluoropolymer nano particle is embedded in titanium dioxide surface, is formed uniform hydrophilic/thin
Water alternating structure can improve the non-sticky performance of coating.
Chinese invention patent application CN108299882A (2018.07.20 is disclosed) discloses a kind of with self-cleaning function
Organic-inorganic composite coating material can make titanium dioxide fluoropolymer receive by the hydrolysate of Bola type silane coupling agent
Rice grain is admired with nanometer titanium dioxide to be mutually crosslinked by chemical bond, and forming coating has good catalytic self-cleaning ability.The technology
Product is tested by us, and non-sticky performance and non-sticky persistence are undesirable, and main cause is nano-titanium dioxide itself
Though having photocatalysis performance, after being blended with silica, is easily shielded by silica, is allowed to more difficult absorption sunlight,
Photocatalytic activity reduces；Though followed by coating surface has micro-nano structure, it is highly vulnerable to breakage this micro-nano structure by cleaning, is lost
Non-sticky performance.The present embodiment is generally the TiO 2 sol of 100-200nm as main film forming substance, with flat using average grain diameter
The fluoropolymer nano particle that equal partial size is 5-50nm inlays coating of titanium dioxide surface, forms close and distant alternating microstructure, assigns
It is given with excellent non-sticky property and non-sticky persistence.
Embodiment 2
Efficient hydrophobic non-sticky coating raw material formula for timber, metal and frosting:
4 embodiment 2 of table formula
Preparation process: 80.4g dehydrated alcohol, 2.0g titanium colloidal sol are sequentially added in four-hole boiling flask, stirs 1h between 70 DEG C
Keep stock dispersion uniform.It is made after required titanium colloidal sol, taking-up is cooled to room temperature.1g fluoropolymer nano particle is dispersed
In 16g dehydrated alcohol, it is added dropwise in titanium colloidal sol, and 1H is added, 1H, 2H, 2H- perfluoro capryl trimethoxy silane 0.5g,
0.5g triethanolamine, 0.5g isopropanol and 0.1g wetting agent TEGO-750 are stirred 1 hour at room temperature, are filtered and packaged.
Coating property: appearance is light blue transparent, viscosity about 1mPa.s, solid content 3.6%；
Construction and dry: using spraying method on the electric fan of ABS material prepares coating；First it is dried at room temperature for 30
Minute, then toasted 60 minutes at 60 DEG C；
Film performance result and commercially available non-sticky coating comparison are as follows:
5 performance comparison of table
Embodiment 3
Efficient hydrophobic non-sticky coating raw material formula for timber, metal and frosting:
6 embodiment 3 of table formula
Preparation process: 79.9g dehydrated alcohol, 2.0g titanium colloidal sol are sequentially added in four-hole boiling flask, stirs 1h between 70 DEG C
Keep stock dispersion uniform.It is made after required titanium colloidal sol, taking-up is cooled to room temperature.By 1.0g fluoropolymer nano particle point
It dissipates in 15g dehydrated alcohol, is added dropwise in titanium colloidal sol, and 0.5g acetylacetone,2,4-pentanedione, 0.5g isobutanol and 0.1g wetting agent is added
TEGO-760 is stirred 1 hour at room temperature, is filtered and packaged.
Coating property: appearance is light blue transparent, viscosity about 1mPa.s, solid content 4.1%；
Construction and dry: using spraying method on the electric fan of ABS material prepares coating；First it is dried at room temperature for 30
Minute, then toasted 60 minutes at 60 DEG C；
Film performance result and commercially available non-sticky coating comparison are as follows:
7 performance comparison of table
Embodiment 4
Efficient hydrophobic non-sticky coating raw material formula for timber, metal and frosting:
8 embodiment 4 of table formula
Preparation process: 69.4g dehydrated alcohol, 2.0g titanium colloidal sol are sequentially added in four-hole boiling flask, stirs 1h between 70 DEG C
Keep stock dispersion uniform.It is made after required titanium colloidal sol, taking-up is cooled to room temperature.1g fluoropolymer nano particle is dispersed
In 26g dehydrated alcohol, it is added dropwise in titanium colloidal sol, and 1H is added, 1H, 2H, 2H- perfluoro decyl triethoxysilane 0.5g,
0.5g triethanolamine, 0.5g dipropylene and 0.1g wetting agent TEGO-685 are stirred 1 hour at room temperature, are filtered and packaged.
Coating property: appearance is light blue transparent, viscosity about 1mPa.s, solid content 4.6%；
Construction and dry: using spraying method on the electric fan of ABS material prepares coating；First it is dried at room temperature for 30
Minute, then toasted 60 minutes at 60 DEG C；
Film performance result and commercially available non-sticky coating comparison are as follows:
9 performance comparison of table
Embodiment 5
Efficient hydrophobic non-sticky coating raw material formula for timber, metal and frosting:
10 embodiment 5 of table formula
Preparation process: 75.4g dehydrated alcohol, 2.0g titanium colloidal sol are sequentially added in four-hole boiling flask, stirs 1h between 70 DEG C
Keep stock dispersion uniform.It is made after required titanium colloidal sol, taking-up is cooled to room temperature.1g fluoropolymer nano particle is dispersed
In 19.5g dehydrated alcohol, it is added dropwise in titanium colloidal sol, and H is added, 1H, 2H, 2H- perfluoro capryl triethoxysilane 0.5g,
1H, 1H, 2H, 2H- perfluoro decyl trimethoxy silane 0.5g, levulinic, 0.5g, 0.5g propylene glycol monomethyl ether and 0.1g wetting agent
BYK-346 is stirred 1 hour at room temperature, is filtered and packaged.
Coating property: appearance is light blue transparent, viscosity about 1mPa.s, solid content 4.6%；
Construction and dry: using spraying method on the electric fan of ABS material prepares coating；First it is dried at room temperature for 30
Minute, then toasted 60 minutes at 60 DEG C；
Film performance result and commercially available non-sticky coating comparison are as follows:
11 performance comparison of table
The present invention is not constrained by above-described embodiment, and others are any to be made without departing from the spirit and principles of the present invention
Changes, modifications, substitutions, combinations, simplifications, should be equivalent alternative, be included within the scope of the present invention.
Claims (10)
1. for timber, the efficient non-sticky hydrophobic coating of metal and frosting, which is characterized in that by percentage to the quality,
Its raw material composition are as follows: titanium colloidal sol 0.1-15%, fluoropolymer nano particle 0.1-15%, fluorine containing silane coupling agent 0.1-5%,
Wetting agent 0.1-2%, stabilizer 0.1-2%, coalescing agent 0.1-5%, remaining is dehydrated alcohol；Wherein, titanium colloidal sol is average
The TiO 2 sol of partial size 120-200nm, chemical composition are the ethanol solution of titanium dioxide；Fluoropolymer nano particle
Average grain diameter be 10-50 nanometers.
2. according to claim 1 for timber, the efficient non-sticky hydrophobic coating of metal and frosting, feature exists
In the fluoropolymer nano particle is polytetrafluoroethylene (PTFE), Kynoar, fluorinated ethylene propylene (FEP), polytetrafluoroethylene (PTFE)-ethylene
One of copolymer, perfluoroalkoxy resin, ethylene chlorotrifluoroethylene, polyvinyl fluoride, polytrifluorochloroethylene are a variety of.
3. according to claim 1 for timber, the efficient non-sticky hydrophobic coating of metal and frosting, feature exists
It is 1H, 1H, 2H in, the fluorine containing silane coupling agent, 2H- perfluoro capryl trimethoxy silane, 1H, 1H, 2H, 2H- perfluor is pungent
Ethyl triethoxy silicane alkane, 1H, 1H, 2H, 2H- perfluoro decyl triethoxysilane, 1H, 1H, 2H, 2H- perfluoro decyl trimethoxy
One of silane is a variety of.
4. according to claim 1 for timber, the efficient non-sticky hydrophobic coating of metal and frosting, feature exists
In, the wetting agent be organic silicon modified by polyether such as TEGO-245, TEGO-750, TEGO-760, TEGO-685, BYK-306,
One or more of BYK-346, DC67 and DC7244.
5. according to claim 1 for timber, the efficient non-sticky hydrophobic coating of metal and frosting, feature exists
In the stabilizer is one or more of ethanol amine, diethanol amine, triethanolamine, acetylacetone,2,4-pentanedione.
6. according to claim 1 for timber, the efficient non-sticky hydrophobic coating of metal and frosting, feature exists
In the coalescing agent is in propylene glycol monomethyl ether, propylene glycol monobutyl ether, dipropylene, isopropanol and isobutanol
It is one or more.
7. according to claim 1 for timber, the efficient non-sticky hydrophobic coating of metal and frosting, feature exists
In, the efficient non-sticky hydrophobic coating be light blue transparency liquid, solid content 1-15%, viscosity 1-5mPa.s,
6-12 month room temperature storage time；Coating application is spraying or brushes, and obtains coating.
8. according to claim 7 for timber, the efficient non-sticky hydrophobic coating of metal and frosting, feature exists
In the coating is first dried 5-30 minutes at normal temperature, then 20-60 minutes dry at 50-80 DEG C.
9. according to claim 1 for timber, the efficient non-sticky hydrophobic coating of metal and frosting, feature exists
In, the appearance of film that the described efficient non-sticky hydrophobic coating is formed is transparent smooth, and 100-120 ° of water contact angle, in building ring
The non-sticky property retention time is 1 year or more under border；Measuring the non-sticky efficiency of coating in the lab is 87.4%；In 500g/
Still it is able to maintain that appearance transparent is smooth and non-sticky performance after 500 wear-resisting experiments；
The non-sticky performance test methods: on glass slide after prepares coating, prickly-heat powder being placed on coating, stands 1 point
The cated one side of glass slide is inverted, falls the nonadherent prickly-heat powder on coating sufficiently by clock, and comparison has coating and without painting
Appearance after layer adherency prickly-heat powder, judges the non-sticky effect of coating；
The non-sticky Efficiency test method of the coating: on flabellum after prepares coating, flabellum being placed in air duct, opens wind
Fan, and test standard gray is added in air duct, after accelerating binding dust, flabellum is taken out, the flabellum and nothing of coating are coated with
The dust being enriched on the blank flabellum of coating is collected respectively；Pass through the dust quality m of cated blade surface1And it is uncoated
The dust quality m of blank blade surface2；The non-sticky efficiency eta of coating=(m of blade surface coating is calculated2–m1)/m2。
10. the system of the described in any item efficient non-sticky hydrophobic coatings for timber, metal and frosting of claim 1-9
Preparation Method, which is characterized in that it disperses fluoropolymer nano particle in ethanol solution, is then added in titanium colloidal sol,
Wetting agent, stabilizer, coalescing agent are added, is stirred evenly at room temperature, is filtered and packaged.
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| CN111808484A (en) * | 2020-07-17 | 2020-10-23 | 浙江乐酷厨具有限公司 | Preparation method of high-temperature-resistant wear-resistant non-stick pan coating |
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| CN116790162A (en) * | 2022-12-22 | 2023-09-22 | 德杰盟工程科技(苏州)有限公司 | Super-hydrophobic self-cleaning coating, preparation method and application |
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