CN105331260A - Water-based anti-scraping wearproof non-stick paint and preparation method thereof - Google Patents
Water-based anti-scraping wearproof non-stick paint and preparation method thereof Download PDFInfo
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Abstract
The invention belongs to the field of paint, and discloses water-based anti-scraping wearproof non-stick paint. The non-stick paint is prepared from, by weight, 20-30 parts of polyether ether ketone, 30-50 parts of water-based fluorine-containing resin emulsion, 20-40 parts of deionized water, 1-5 parts of a film forming additive, 1-5 parts of a thickening agent, 0.1-0.5 part of ammonium hydroxide, 3-6 parts of cosolvent, 1-5 parts of an auxiliary and 1-5 parts of pigments, wherein the fluorine-containing resin adopts perfluoroalkoxy resin and/or a fluorinated ethylene-propylene copolymer. The invention further discloses a preparation method of the non-stick paint. The water-based anti-scraping wearproof non-stick paint can be directly applied to substrates such as aluminum, aluminum alloy and stainless steel to form a layer of a protective coating, the coating is excellent in scrape resistance, wear resistance and non-stick property, and the service life of the product is greatly prolonged.
Description
Technical field
The invention belongs to paint field, specifically a kind of water-based anti-scratching wearproof non-viscous paint and preparation method thereof.
Background technology
Along with the raising of people's living standard, the requirement of household electrical appliances is also improved thereupon.Not sticky product is in the market as electric cooker, frying pan etc., and coating is easy to be scratched even come off in use.Because traditional non-viscous paint not viscosity, anti-scratch, abrasion resistant effect exists certain defect, have plenty of not viscosity good, but anti-scratch, wear-resisting poor, and price is higher.
Heat-proof non-stick coating is the earliest for cookers such as pots, and the history of existing more than 30 year, improves the direction that its work-ing life is scientific research personnel's effort always so far.Although scientific research personnel develops the multiple coating for applying non-sticky metallic coating over more than 30 year, its main component is identical, is all the macromolecular material of tetrafluoroethylene (being called for short 4F, PTFE) this synthesis.Tetrafluoroethylene is by the perfluorinated polymers of tetrafluoroethylene copolymerization.Tetrafluoroethylene has that degree of crystallinity is high, molecular weight is large, do not have side chain in molecule, fluorine atom is closely arranged in around C-C skeleton, C-F bond energy height and fluorine atom play the constructional features such as shielding effect to main chain, these features determine its have frictional coefficient little, do not absorb water, do not glue, do not fire, weathering resistance is good, the features such as use temperature wide ranges and dielectric properties are excellent, the good characteristic making fluoro coatings possess other coating not possess.But fluoro coatings mechanical property such as hardness, rub do not reach requirement, therefore, early stage by adding mineral filler in fluoro coatings, improve the wear resistance of fluoro coatings coating, but up to now, acquired achievement not also very desirable.The non-viscous paint used in the market, also has organosilicon non-viscous paint and ceramic coating, and organosilicon non-viscous paint can accomplish well not sticky effect, but difference of hardness, spades test request cannot be met; Ceramic coating hardness is high but the crisp hard object that runs into of film easily falls paint.So the needs in order to meet market, needing to develop a kind of anti-scratch, wear-resisting, not viscosity and good cost performance coating, improving the work-ing life of electric equipment products.
Summary of the invention
The object of this invention is to provide a kind of water-based anti-scratching wearproof non-viscous paint.
Another object of the present invention is to provide the preparation method of this non-viscous paint.
For achieving the above object, the present invention by the following technical solutions:
A kind of water-based anti-scratching wearproof non-viscous paint, according to parts by weight, the raw material of described non-viscous paint comprises 20 ~ 30 parts of polyether-ether-ketones, 30 ~ 50 parts of water fluoric resin emulsions, 20 ~ 40 parts of deionized waters, 1 ~ 5 part of film coalescence aid, 1 ~ 5 part of thickening material and 0.1 ~ 0.5 part of ammoniacal liquor.
Further, the MFR of described polyether-ether-ketone is 30 ~ 50g/10min.
Further, described fluorine resin is perfluoroalkoxy resin and/or the rare multipolymer of ethylene fluoride third.
Further, the concentration of described water fluoric resin emulsion is 20 ~ 60wt%.
Further, described film coalescence aid is at least one in propylene-glycol ethyl ether, propandiol butyl ether and dipropylene.
Further, described thickening material is the polyvinyl alcohol solution of the sodium polyacrylate solution of 20 ~ 60wt%, the association type polyurethane solution of 20 ~ 60wt% or 20 ~ 60wt%.
Further, the raw material of described non-viscous paint also comprises 3 ~ 6 weight part solubility promoters, 1 ~ 5 weight part auxiliary agent and 1 ~ 10 weight part color stuffing.
Further, described solubility promoter is at least one in ethanol, Virahol, n-propyl alcohol and propyl carbinol.
Further, described auxiliary agent is at least one in defoamer, flow agent, sanitas, emulsifying agent, mould inhibitor and thixotropic agent.
Described defoamer is silicone antifoam agent, and described flow agent is modified dimethyl polysiloxane.
Described color stuffing take carbon black as pigment, and abrasion-resistant powder is filler.
The preparation method of the non-viscous paint described in above-mentioned any one claim, specifically: first in equipment cylinder, add deionized water and ammoniacal liquor, add thickening material while stirring, polyether-ether-ketone is added after thickening material dispersion completely, continuing stirring makes powder be uniformly dispersed, then be ground to fineness and be less than 10 μm, finally under whipped state, add film coalescence aid and water fluoric resin emulsion.
The present invention has following beneficial effect:
The present invention adopts the polyether-ether-ketone powder of specific melt flow rate (MFR) (MFR) as matrix resin, the anticorrosion acid resistance of product can be improved greatly, polyether-ether-ketone resin has higher hardness, excellent toughness and intensity, in 380 ~ 420 DEG C of high-temperature sintering process, coating is well attached on ground, and forms very level and smooth surface effect; The perfluoroalkoxy resins that employing non-adhesion behavior is good etc. and polyether-ether-ketone high temperature sintering, make product have better not viscosity and sticky persistence; Adopt ammoniacal liquor that the pH value in system is adjusted to 7 ~ 9, be conducive to the stable of system; Add thickening material to contribute to ensureing that product is deposited in process and be not easy deposit clumps, and contribute to the construction of coating; Add film coalescence aid and be conducive to coating film forming more fine uniform, and make not viscosity better.Water-based anti-scratching wearproof non-viscous paint of the present invention; can directly be coated on the base materials such as aluminium, aluminium alloy, stainless steel; form one deck supercoat; coating scratch resistance, wear-resisting; non-adhesion behavior is excellent; can substitute traditional oiliness or water-based film, solve a difficult problem for existing film anti-scratching wearproof difference, the work-ing life of product improves greatly.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further:
Number in following examples all refers to weight part, and the MFR of embodiment 1 ~ 3,5,6 polyether-ether-ketone used is 30 ~ 50g/10min.
embodiment 1
Water-based anti-scratching wearproof non-viscous paint is prepared according to following steps:
(1) in stainless steel cylinder, add 33 parts of deionized waters and 0.3 part of ammoniacal liquor, under stirrer, add the sodium polyacrylate solution (thickening material) of 3 parts of 40wt% while stirring, high speed dispersion 30min makes thickening material dissolve completely and spread out completely;
(2) continue to add 26.4 parts of polyether-ether-ketones, 5 parts of abrasion-resistant powders, 1 part of silicone antifoam agent, 2 parts of carbon blacks while stirring, high-speed stirring 30min makes powder be uniformly dispersed;
(3) obtained base-material is taken out, be ground to fineness with horizontal sand mill and be less than 10 μm, and spray plate observation surface fineness;
(4) under whipped state, add the aqueous full fluorine alkoxy resin emulsion of 2 parts of propylene-glycol ethyl ethers (film coalescence aid) and 30 parts of 40wt%, after stirring, bag filter loads pail pack.
embodiment 2
Water-based anti-scratching wearproof non-viscous paint is prepared according to following steps:
(1) in stainless steel cylinder, add 30 parts of deionized waters and 0.2 part of ammoniacal liquor, under stirrer, add the association type polyurethane solution (thickening material) of 4 parts of 40wt% while stirring, high speed dispersion 30min makes thickening material dissolve completely and spread out completely;
(2) continue to add 28.4 parts of polyether-ether-ketones, 6 parts of abrasion-resistant powders, 1 part of silicone antifoam agent, 2 parts of carbon blacks while stirring, high-speed stirring 30min makes powder be uniformly dispersed;
(3) obtained base-material is taken out, be ground to fineness with horizontal sand mill and be less than 10 μm, and spray plate observation surface fineness;
(4) under whipped state, add the aqueous full fluorine alkoxy resin emulsion of 3 parts of propandiol butyl ethers (film coalescence aid) and 40 parts of 60wt%, after stirring, bag filter loads pail pack.
embodiment 3
Water-based anti-scratching wearproof non-viscous paint is prepared according to following steps:
(1) in stainless steel cylinder, add 20 parts of deionized waters and 0.4 part of ammoniacal liquor, under stirrer, add the polyvinyl alcohol solution (thickening material) of 2 parts of 40wt% while stirring, high speed dispersion 30min makes thickening material dissolve completely and spread out completely;
(2) continue to add 20 parts of polyether-ether-ketones, 5 parts of abrasion-resistant powders, 5 parts of silicone antifoam agents, 5 parts of carbon blacks while stirring, high-speed stirring 30min makes powder be uniformly dispersed;
(3) obtained base-material is taken out, be ground to fineness with horizontal sand mill and be less than 10 μm, and spray plate observation surface fineness;
(4) under whipped state, add the rare copolymer emulsion of water-based ethylene fluoride third of 2.5 parts of dipropylene (film coalescence aid) and 40 parts of 40wt%, after stirring, bag filter loads pail pack.
embodiment 4
Be sprayed on aluminium sheet by coating obtained for embodiment 1 ~ 3 and commercially available A, B product, carry out anti-scratching wearproof not viscoelastic test, result is as shown in table 1:
Wherein, the MFR of A product polyether-ether-ketone used is 60 ~ 100g/10min; B product does not use film coalescence aid of the present invention, but uses polyethersulfone as tackiness agent.
As shown in Table 1, anti-scratch, wear-resisting, not sticky, the antiseptic property of non-viscous paint of the present invention are far superior to commercially available prod, this mainly because: 1, the present invention through exploration, select melt flow rate (MFR) to be the polyether-ether-ketone powder of 30 ~ 50g/10min, found that this polyether-ether-ketone powder can play particularly preferred anti-scratch, wear-resisting, sticky effect; 2, add film coalescence aid and replace conventional tackiness agent, be conducive to coating film forming more fine uniform, and make not viscosity better.
Experimental technique
The testing substrates that experimental technique of the present invention is selected is die casting aluminium, and surfaceness is: 2 ~ 5 μm.
Instrument
Grinding medium: unitary Renminbi coin, carries power grinding medium being applied to downward 3kg.
Reciprocating carriage: be used for fixing tested kitchen tools workpiece.Can be controlled it and move horizontally 100 ± 5mm in all directions with the speed of per minute 55 circulation.
Grinding pad: the nylon wire (7447B, 3M company) dipped by resol and aluminium sesquioxide.Specification is long 75 ± 5mm, wide 30 ± 5mm, thick 5mm, sticks on the similar duroplasts block of size, can carry power grinding pad being applied to downward 15.0 ± 0.2N.
Scratch resistance is tested
Measured workpiece is fixed on described reciprocating carriage, and grinding medium is placed on non-sticky metallic coating, from each horizontal direction, through workpiece centre, movable reciprocating carriage 100 ± 5mm.Repeat 50 circulations, every 50 recycling replacings grinding medium.Rinse the workpiece surface be polished with clear water, detect its coating damage situation, during to start show-through, cycle index is as scratch resistance result.
Wear-resisting test
Being fixed on described reciprocating carriage by measured workpiece, and being placed on non-sticky metallic coating by grinding pad, is the household washing liquid slip coating surface of 5g/L by 50mL concentration.Grinding pad is kept to maintain static, from each horizontal direction, through workpiece centre, movable reciprocating carriage 50mm ± 2.5mm.Repeat 250 circulations, every 250 recycling replacings grinding pad.Rinse the workpiece surface be polished with clear water, detect its coating damage situation, during to start show-through, cycle index is as wear-resisting result.
Not viscoelastic test
The flat bottom aluminium pot of scrub lies against on electric furnace and heats, and surface temperature control is at 150 ~ 180 DEG C.Egg is squeezed into pan, and after egg congeals (about 2min), scooped up by egg with scuppit, albumen should be intact, and specimen surface is without bur.Repeat same position and operate 3 times; If qualified repetition said process.
Corrosion-resistant test
Detection reagent: massfraction is the NaCl solution of 10%.
Testing process: be placed in by measured workpiece on electromagnetic oven or gas furnace, pours the NaCl solution configured into, and continuing to boil, to boil 8h be a circulation, more than at least 3 circulations, after cleaning up, specimen surface flat smooth, non-foaming, do not come off.
embodiment 5
Water-based anti-scratching wearproof non-viscous paint is prepared according to following steps:
(1) in stainless steel cylinder, add 40 parts of deionized waters and 0.5 part of ammoniacal liquor, under stirrer, add polyvinyl alcohol solution (thickening material) and 6 parts of n-propyl alcohols (solubility promoter) of 5 parts of 20wt% while stirring, high speed dispersion 30min makes thickening material dissolve completely and spread out completely;
(2) continue to add 30 parts of polyether-ether-ketones, 0.5 part of abrasion-resistant powder, 0.5 part of carbon black while stirring, high-speed stirring 30min makes powder be uniformly dispersed;
(3) obtained base-material is taken out, be ground to fineness with horizontal sand mill and be less than 10 μm, and spray plate observation surface fineness;
(4) under whipped state, add the rare copolymer emulsion of water-based ethylene fluoride third of 5 parts of film coalescence aid (propandiol butyl ether and dipropylene) and the aqueous full fluorine alkoxy resin emulsion of 20 parts of 20wt%, 30 parts of 60wt%, after stirring, bag filter loads pail pack.
embodiment 6
Water-based anti-scratching wearproof non-viscous paint is prepared according to following steps:
(1) in stainless steel cylinder, add 25 parts of deionized waters and 0.1 part of ammoniacal liquor, under stirrer, add polyvinyl alcohol solution (thickening material) and 3 parts of ethanol (solubility promoter) of 1 part of 60wt% while stirring, high speed dispersion 30min makes thickening material dissolve completely and spread out completely;
(2) continue to add 24.5 parts of polyether-ether-ketones while stirring, high-speed stirring 30min makes powder be uniformly dispersed;
(3) obtained base-material is taken out, be ground to fineness with horizontal sand mill and be less than 10 μm, and spray plate observation surface fineness;
(4) under whipped state, add the rare copolymer emulsion of water-based ethylene fluoride third of 1 part of film coalescence aid (propylene-glycol ethyl ether and propandiol butyl ether) and 35 parts of 50wt%, after stirring, bag filter loads pail pack.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly belongs to those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. a water-based anti-scratching wearproof non-viscous paint, it is characterized in that, according to parts by weight, the raw material of described non-viscous paint comprises 20 ~ 30 parts of polyether-ether-ketones, 30 ~ 50 parts of water fluoric resin emulsions, 20 ~ 40 parts of deionized waters, 1 ~ 5 part of film coalescence aid, 1 ~ 5 part of thickening material and 0.1 ~ 0.5 part of ammoniacal liquor.
2. non-viscous paint according to claim 1, is characterized in that, the MFR of described polyether-ether-ketone is 30 ~ 50g/10min.
3. non-viscous paint according to claim 1, is characterized in that, described fluorine resin is perfluoroalkoxy resin and/or the rare multipolymer of ethylene fluoride third.
4. non-viscous paint according to claim 1, is characterized in that, the concentration of described water fluoric resin emulsion is 20 ~ 60wt%.
5. non-viscous paint according to claim 1, is characterized in that, described film coalescence aid is at least one in propylene-glycol ethyl ether, propandiol butyl ether and dipropylene.
6. non-viscous paint according to claim 1, is characterized in that, described thickening material is the polyvinyl alcohol solution of the sodium polyacrylate solution of 20 ~ 60wt%, the association type polyurethane solution of 20 ~ 60wt% or 20 ~ 60wt%.
7. non-viscous paint according to claim 1, is characterized in that, the raw material of described non-viscous paint also comprises 3 ~ 6 weight part solubility promoters, 1 ~ 5 weight part auxiliary agent and 1 ~ 10 weight part color stuffing.
8. non-viscous paint according to claim 7, is characterized in that, described solubility promoter is at least one in ethanol, Virahol, n-propyl alcohol and propyl carbinol.
9. non-viscous paint according to claim 7, is characterized in that, described auxiliary agent is at least one in defoamer, flow agent, sanitas, emulsifying agent, mould inhibitor and thixotropic agent.
10. the preparation method of the non-viscous paint described in above-mentioned any one claim, it is characterized in that, first in equipment cylinder, add deionized water and ammoniacal liquor, add thickening material while stirring, polyether-ether-ketone is added after thickening material dispersion completely, continuing stirring makes powder be uniformly dispersed, and is then ground to fineness and is less than 10 μm, finally under whipped state, add film coalescence aid and water fluoric resin emulsion.
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Cited By (5)
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| CN107163726A (en) * | 2017-06-02 | 2017-09-15 | 冯新平 | A kind of wear-resistant unsticky coating and its preparation technology |
| CN107236410A (en) * | 2017-07-19 | 2017-10-10 | 中山市富利达涂料有限公司 | Shovel-resistant water-based non-stick coating and preparation method thereof |
| CN112143303A (en) * | 2020-10-22 | 2020-12-29 | 广东欧富隆自动货架科技有限公司 | Water-based non-stick paint and layer frame slideway |
| CN114907764A (en) * | 2022-06-27 | 2022-08-16 | 北京誉邦行设备维修有限公司 | High-hardness polyimide water-based fluorine coating and preparation method thereof |
| CN115678434A (en) * | 2022-10-24 | 2023-02-03 | 扬州工业职业技术学院 | High-molecular chemical material and preparation method thereof |
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Cited By (5)
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| CN112143303A (en) * | 2020-10-22 | 2020-12-29 | 广东欧富隆自动货架科技有限公司 | Water-based non-stick paint and layer frame slideway |
| CN114907764A (en) * | 2022-06-27 | 2022-08-16 | 北京誉邦行设备维修有限公司 | High-hardness polyimide water-based fluorine coating and preparation method thereof |
| CN115678434A (en) * | 2022-10-24 | 2023-02-03 | 扬州工业职业技术学院 | High-molecular chemical material and preparation method thereof |
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