CN105754472A - Anti-adhesion coating with anti-scraping anti-damage performance - Google Patents

Abstract

The invention relates to an anti-adhesion coating with anti-scraping anti-damage performance. The anti-adhesion coating is characterized by being prepared from a mixture containing polyether sulfone and polyphenylene sulfide, wherein the anti-adhesion coating coats the surface of a metal medium so as to form a dry film with the thickness of 60-80 mu m; the Vickers hardness Hv5 of the dry film under a force of 5kg is 400-450kg/mm<2>; the polyether sulfone accounts for x% of the total weight of the coating, the polyphenylene sulfide accounts for y% of the total weight of the coating, values of x and y meet the inequalities that x is not more than 22 and not less than 27, and y is not more than 33 and not less than 36. The anti-adhesion coating is capable of realizing full complementation in rigidity performances of polyether sulfone and polyphenylene sulfide; the ratio of polyether sulfone to polyphenylene sulfide is adjusted according to rigidity requirements so as to ensure that the ingredients for improving the rigidity of the coating are synergistic, and the final rigidity can ensure that the anti-adhesion coating is anti-scraping anti-damage in daily use and has tenacity.

Description

A kind of Anti-adhesion paint with anti-scratch damage performance

Technical field

The present invention relates to a kind of Anti-adhesion paint.More particularly it relates to an for having the demand of preventing adhesion The Anti-adhesion paint of article, especially cooker.

Background technology

When Anti-adhesion paint is in the container being used in heat foods, for avoiding external force to damage during ensureing heat foods Coating, needs coating to ensure its certain hardness, mobility time simultaneously for ensureing the coating of coating, resist blocking and that performance and wear-resisting Property, then hardness can not be excessive, crosses conference and causes coating embrittlement, wears no resistance, it is therefore desirable to coating ensures certain hardness strength It it is the coating needs being used in container for paint.

In current coating, according to the different requirements of its coating property, which employs different technology, such as Chinese patent Application number 200910204980.6 describes a kind of anti-corrosion film, comprising: the fluororesin of 1-35 weight %, 1-70 weight % Epoxy resin；First adhesive of 5-70 weight %, it includes polyamidoimide；The second bonding with 1-40 weight % Agent, it selected from polyether sulfone, polyphenylene sulfide, polyamide, polyimides, polyether-ether-ketone, PEI, polyurethane, alkyd resin, The mixture that the above-mentioned adhesive of polyester, acrylic polymer or two or more is formed with arbitrary proportion.Its purpose is to Ensure that it is anticorrosive, which employs fluororesin, epoxy resin and two kinds of adhesives.

Chinese Patent Application No. 85107781 discloses at aspect of performances such as temperature resistant grade, alkaline-resisting, acid corrosions with traditional The goods of enamel coating.Its preparation method is that the polyethersulfone resin that 20 grams of viscosity is 0.35 is dissolved in 108 grams of dimethylacetylamides In, the most under agitation add 72 grams of toluene.Continue stirring until whole solution limpid transparent only.Obtain required coating solution. Note this solution a certain amount of by burning on the sheet metals such as treated for surface aluminium, iron, be placed in air dry oven with certain speed Intensification drying and sintering, lubricious from 10～50 microns of thickness.Coating layer thickness can be with coating concentration and burning fluence control System.

Chinese Patent Application No. 200480015784.X describes a kind of coating coating base comprising fluoropolymer The method of material, described method include order below step: a. preparation comprise one or more fluoropolymers and one or more The solid mixture of thermally stable thermoplastic polymer at a temperature of more than 400 DEG C；B. the temperature of about 250 DEG C to about 400 DEG C By melt blended for described solid mixture and be extruded to achieve uniformly under degree；C. make extrudate carry out mechanical treatment, obtain average Granularity is at most the powder of about 100 microns；D. described powder is used on the substrate；With e., described base material is heated to foot Enough make the temperature that described powder fully flows to coat described base material.

Chinese Patent Application No. 201010136567.3 discloses a kind of aryl mercaptan-olefinic unsaturated double-bond polyether sulfone Solidification compound, component includes polyether sulfone compound and the aryl thiol compound of ethylenical unsaturated double bonds；Its proportioning is by virtue The sulfydryl of base mercaptan compound and the molar ratio computing of ethylenical unsaturated double bonds, be 1: 99～1.Component can also there is polymerization cause Agent.When absorbing light and/or heat, photopolymerization obtains solidfied material.By using specific aryl mercaptan and specific containing olefinic The polyether sulfone compound of unsaturated double-bond, it is possible to obtain the polyether sulfone materials that light reaction is high, heat-resist, hardness is high.

Chinese Patent Application No. CN201110316124.7 describes a kind of Anti-adhesion paint, and this coating contains polyether sulfone (PES), polyphenylene sulfide (PPS), antiblocking agent, pigment, water and solvent.Coating corrosion-resistant that this Anti-adhesion paint is formed The performance of the aspects such as property, wearability, hardness, adhesive force and non-stick be improved significantly.This coating can not only film be individually Finished product, can act also as multilayer non-viscous paint any layer use.

Technology disclosed in currently available technology, performance is improved the most from every side, but the hardest for coating Spend this characteristic to further investigate, do not solve the stiffness issue of coating in current container for paint, be also formed without Disclosure satisfy that the dry film of the particular stiffness of need of living and producing, be also formed without disclosure satisfy that the dry film produced with living needs Production method.

Summary of the invention

For solving above-mentioned technical problem, the invention provides the Anti-adhesion paint of a kind of anti-scratch damage performance and prevent adhesion painting Material, the dry film after coating coating substrate, and the method adjusting dry film hardness.

Concrete, the invention provides the Anti-adhesion paint Anti-adhesion paint of a kind of anti-scratch damage performance, it is characterised in that Described Anti-adhesion paint is prepared by the mixture comprising polyether sulfone and polyphenylene sulfide, and described Anti-adhesion paint is coated to metal Dielectric surface forms the dry film of 60-80 μ m thick, and dry film is 400-450kg/mm in Vickers hardness Hv5 of 5kg power², polyether sulfone Accounting for coating total weight percent is x%, and polyphenylene sulfide accounts for the value that coating total weight percent is y%, x and y and meets following relation Formula:

22 >=x >=27,33 >=y >=36

In above-mentioned Anti-adhesion paint, the formula that Vickers hardness Hv5 calculates is:

$Hv5=18.173\&times;\frac{p}{d^2}\left(\frac{kg}{{\mathrm{mm}}^2}\right)$

Wherein p=5, d are the mean value of impression catercorner length in Vickers hardness test.

In above-mentioned coating, it is preferred that mixture also comprises antiblocking agent, pigment, water and solvent.

In above-mentioned coating, also comprising conventional auxiliary agent in mixture, described auxiliary agent is preferably thickener, levelling agent, dispersion One or more in agent, defoamer, wetting agent.

In above-mentioned coating, described antiblocking agent is fluoropolymer, preferably tetrafluoroethylene monomer, polytetrafluoroethylene (PTFE) tree One or more in fat, soluble poly tetrafluoroethene, perfluoroalkyl vinyl ether.

Preferably, perfluoroalkyl vinyl ether is perfluoro methyl vinyl ether, perfluoroethylvinyl ether, perfluoro propyl second One or more in alkene ether, hexafluoropropene, perfluorobutyl ethylene, CTFE.

Especially preferred, the antiblocking agent in mixture is polyflon or polytetrafluoroethylene (PTFE)-perfluoro alkoxy Resin compound.

Preferably, in above-mentioned coating, the build of the coating that Anti-adhesion paint is formed is 65-75 μm.

For solving above-mentioned technical problem, present invention also offers a kind of dry film being coated by Anti-adhesion paint and preparing, It is characterized in that Anti-adhesion paint is prepared by the mixture comprising polyether sulfone and polyphenylene sulfide, described Anti-adhesion paint coats After metal, pottery or glass medium dry tack free, the thickness of dry film is 60-80 μm, and dry film Vickers hardness Hv5 is 400- 450kg/mm², wherein polyether sulfone accounts for coating total weight percent is x%, and it is y%, x that polyphenylene sulfide accounts for coating total weight percent Following relational expression is met with the value of y:

22 >=x >=27,33 >=y >=36

After Anti-adhesion paint is coated to metal, pottery or glass medium dry tack free, Vickers hardness Hv5 of dry film calculates Formula is:

$Hv5=18.173\&times;\frac{p}{d^2}\left(\frac{kg}{{\mathrm{mm}}^2}\right)$

Wherein p=5, d are the mean value of impression catercorner length in Vickers hardness test.

Preferably, in above-mentioned dry film, mixture also comprises antiblocking agent, pigment, water and solvent.

In above-mentioned dry film, mixture also comprises conventional auxiliary agent, described auxiliary agent selected from thickener, levelling agent, dispersant, One or more in defoamer, wetting agent.

In above-mentioned dry film, described antiblocking agent is fluoropolymer, preferably tetrafluoroethylene monomer, polytetrafluoroethylene (PTFE) tree One or more in fat, soluble poly tetrafluoroethene, perfluoroalkyl vinyl ether.

Preferably, perfluoroalkyl vinyl ether is perfluoro methyl vinyl ether, perfluoroethylvinyl ether, perfluoro propyl second One or more in alkene ether, hexafluoropropene, perfluorobutyl ethylene, CTFE.

Preferably, the antiblocking agent in mixture is polyflon or polytetrafluoroethylene (PTFE)-perfluoroalkoxy resin Mixture.

Preferably, the build of the coating that Anti-adhesion paint is formed is 65-75 μm.

Present invention also offers the dry film of a kind of content change coating adjusting polyether sulfone and polyphenylene sulfide in coating coating The method of hardness, it is characterised in that after the content adjustment coating of polyether sulfone and polyphenylene sulfide is coated on matrix in adjustment coating Dry film hardness, reaching build is 60-80 μm, and dry film Vickers hardness Hv5 is 400-450kg/mm², wherein polyether sulfone and The content of polyphenylene sulfide is respectively x% and y%, x and y and meets following relational expression:

22 >=x >=27,33 >=y >=36

After coating is coated in matrix formation dry film, the computing formula of Vickers hardness Hv5 of dry film is:

$Hv5=18.173\&times;\frac{p}{d^2}\left(\frac{kg}{{\mathrm{mm}}^2}\right)$

Wherein p is 5, and d is the mean value of impression catercorner length in Vickers hardness test.

In said method, the build of the coating that preferred Anti-adhesion paint is formed is 65-75 μm.

Said method, also comprises antiblocking agent, pigment, water and solvent in coating.

Preferably, in said method, also comprising conventional auxiliary agent in coating, described auxiliary agent is selected from thickener, levelling agent, divides One or more in powder, defoamer, wetting agent.

In said method, described antiblocking agent is fluoropolymer, preferably tetrafluoroethylene monomer, polytetrafluoroethylene (PTFE) tree One or more in fat, soluble poly tetrafluoroethene, perfluoroalkyl vinyl ether.

Preferably, perfluoroalkyl vinyl ether is perfluoro methyl vinyl ether, perfluoroethylvinyl ether, perfluoro propyl second One or more in alkene ether, hexafluoropropene, perfluorobutyl ethylene, CTFE.

In above-mentioned coating, dry film and method, this antiblocking agent can be added or the most in dry powder form with polymer The form of dispersion is added, and is preferably directly added in dry powder form.Pigment is preferably titanium green grass or young crops, titanium white, carbon black, stone One or more in titanium ash black, high, aluminum oxide, carborundum, high temperature inorganic pigment, the color of pigment be preferably yellow, brown, One in blueness, green.Solvent is preferably ketones solvent, amide solvent, sulfone kind solvent, acids solvent, alcohols solvent, ether One or more in the organic solvents such as kind solvent.Ketones solvent is preferably acetone, isopropyl acetone, 1-METHYLPYRROLIDONE, hexamethylene One or more in ketone, butanone.Amine solvent is preferably one or more in hydramine, sulfone amine, dimethylamine.Amide solvent It is preferably one or more in dimethylformamide, dimethylacetylamide.

Sulfone kind solvent is preferably one or more in sulfolane, dimethyl sulfoxide (DMSO).Acids solvent is preferably formic acid, benzene first One or more in acid, acetic acid, ethanedioic acid, propionic acid, malonic acid.Alcohols solvent be preferably ethylene glycol, diethylene glycol, positive third One or more in alcohol, isobutanol, isopropanol.Ether solvent is preferably ether, EGME, ethylene glycol ethyl ether, second two One or more in alcohol butyl ether, isopropyl ether.Described water can use pure water or deionized water.

Present invention also offers the article with above-mentioned dry film, described article are cooker.

Beneficial effect:

Coating of the prior art is improved by the Anti-adhesion paint of the present invention, improves the hardness practicality of coating, By adjusting Hardening angle value value, it is ensured that ensure its toughness in the case of its hardness.Achieve coated surface in actual applications Better substantially, specific as follows:

1, solve polyether sulfone and polyphenylene sulfide is the abundant complementation realizing hardness aspect performance, by its ratio according to hardness Require to carry out the adjustment of ratio, it is ensured that two compositions improving coating hardness can synergy, and final hardness number can be protected Card routine use tolerates scratch and there is toughness.

2, having the coating of particular stiffness needs the ratio of composition of raising hardness in coating reasonable, and compatibility is reasonable, with The mixing of two kinds of compositions of Shi Shixian to obtain the performance that cannot expect to obtain at present, the hardness of coating to be improved, and also wants Ensure the toughness of coating, so after the ratio of clear and definite hardness range and polyether sulfone and polyphenylene sulfide, more ensure that answering of coating Use effect.

Detailed description of the invention

Embodiment 1 coating and the preparation and measurement of coat thereof

By polyether sulfone super fine, polyphenylene sulfide, titanium dioxide pigment, deionized water, 1-METHYLPYRROLIDONE: second two Alcohol: ether: dimethylacetylamide is the keto-alcohol ether amines mixed solvent of 1:1:1:1, puts into container according to the ratio in table 1 below In, after disperseing 30 minutes under 900 revs/min with high speed dispersor, filter through 400 mesh filter screens, according still further to such as the ratio in table 1 below Example adds polyflon, and low speed 100 revs/min stirs 20 minutes, it is thus achieved that Anti-adhesion paint.

Coating is coated in stainless steel matrix, forms the dry film that thickness is 70 μm, uses standard GB/T 4340.1-2009 Vickers Hardness Test of Metallic Materials part i: the small value force Vickers hardness test in test method measures.Application is following public The hardness of the formula calculating each coating of acquisition:

$Hv=18.173\&times;\frac{p}{d^2}\left(\frac{kg}{{\mathrm{mm}}^2}\right)$

Wherein use the load of 5kg, i.e. p=5.

Wherein abrasion resistance measuring method reaches for wearability less than 10% with reference to GB1768-79 (89), the weight loss of paint film Mark, otherwise wearability is the most up to standard.

Toughness measuring method is: coating is coated on the outer and inner surface of curved surface, with the hollow cylinder of a diameter of 100cm Inner surface and outer surface coating (cylinder wall thickness is 5mm), be coated on the inner surface of the hollow cylinder of diameter 100cm The most there is not warpage, the situation coming off, rupturing with the dry film of outer surface, be then designated as toughness up to standard, be otherwise designated as toughness the most up to standard.

The polyether sulfone of table 1 different content and the coating hardness of polyphenylene sulfide

Table 1 prove the content of polyether sulfone and polyphenylene sulfide respectively in the case of 25% and 35%, two kinds of compositions present increasing Effect, and in the case of this ratio, abrasion resistance and toughness are the most up to standard.

Embodiment 2 screens the ratio of polyether sulfone and polyphenylene sulfide

For the ratio whether synergy of clear and definite polyether sulfone 25% content and the annex of polyphenylene sulfide 35% content, continuing with full Test further near the content value of foot synergy formula, prepare coating by the method for embodiment 1 and test, tool Body result such as table 2 below:

Table 2 screens the enhancing proportions of the coating hardness of optimal polyether sulfone and polyphenylene sulfide content

Screened by the ratio of polyether sulfone and polyphenylene sulfide, it was demonstrated that the content range of polyether sulfone is at 22% >=x >=27%, poly- The content range of diphenyl sulfide at 33% >=y >=36%, two kinds of compositions can synergy the thickness of coat is 70 μm when, should In the case of hardness, dry film disclosure satisfy that the requirement of abrasion resistance and toughness simultaneously.

Being adjusted the thickness of coat, adjust the thickness of coat, namely the thickness of dry film is the feelings of 60-80 μm Under condition, the content range of polyether sulfone at 22% >=x >=27%, the content range of polyphenylene sulfide at 33% >=y >=36%, two kinds Composition can synergy, in the case of this hardness, dry film disclosure satisfy that the requirement of abrasion resistance and toughness simultaneously.

Claims (10)

1. the Anti-adhesion paint Anti-adhesion paint of an anti-scratch damage performance, it is characterised in that described Anti-adhesion paint is poly-by comprising The mixture of ether sulfone and polyphenylene sulfide prepares, and described Anti-adhesion paint is coated to metal medium surface and forms 60-80 μ m-thick The dry film of degree, dry film is 400-450kg/mm in Vickers hardness Hv5 of 5kg power², polyether sulfone accounts for coating total weight percent and is X%, polyphenylene sulfide accounts for the value that coating total weight percent is y%, x and y and meets following relational expression:

22 >=x >=27,33 >=y >=36

In above-mentioned Anti-adhesion paint, the formula that Vickers hardness Hv5 calculates is:

$Hv5=18.173\&times;\frac{p}{d^2}\left(\frac{kg}{{\mathrm{mm}}^2}\right)$

Wherein p=5, d are the mean value of impression catercorner length in Vickers hardness test.

Coating the most according to claim 1, wherein also comprises antiblocking agent, pigment, water and solvent in mixture.

Coating the most according to claim 2, wherein the antiblocking agent in mixture is polyflon or polytetrafluoro Ethene-perfluoroalkoxy resin mixture.

4. according to the coating described in any one of claim 1-3, the build of the coating that wherein said Anti-adhesion paint is formed For 65-75 μm.

5. one kind is coated the dry film prepared by Anti-adhesion paint, it is characterised in that Anti-adhesion paint is by comprising polyether sulfone and gathering The mixture of diphenyl sulfide prepares, after described Anti-adhesion paint is coated to metal, pottery or glass medium dry tack free, and dry film Thickness be 60-80 μm, dry film Vickers hardness Hv5 is 400-450kg/mm², wherein polyether sulfone accounts for coating total weight percent and is X%, polyphenylene sulfide accounts for the value that coating total weight percent is y%, x and y and meets following relational expression:

22 >=x >=27,33 >=y >=36

After Anti-adhesion paint is coated to metal, pottery or glass medium dry tack free, the formula that Vickers hardness Hv5 of dry film calculates For:

$Hv5=18.173\&times;\frac{p}{d^2}\left(\frac{kg}{{\mathrm{mm}}^2}\right)$

Wherein p=5, d are the mean value of impression catercorner length in Vickers hardness test.

Dry film the most according to claim 5, wherein also comprises antiblocking agent, pigment, water and solvent in mixture.

Dry film the most according to claim 6, wherein the antiblocking agent in mixture is polyflon or polytetrafluoro Ethene-perfluoroalkoxy resin mixture.

8., according to the dry film described in any one of right 5-7, the build of the coating that wherein said Anti-adhesion paint is formed is 65- 75μm。

9. adjust the method that in coating coating, the content of polyether sulfone and polyphenylene sulfide changes the dry film hardness of coating, its feature It is to adjust the dry film hardness after coating is coated on matrix by the content of polyether sulfone and polyphenylene sulfide in adjustment coating, reaches dry Film thickness is 60-80 μm, and dry film Vickers hardness Hv5 is 400-450kg/mm², wherein the content of polyether sulfone and polyphenylene sulfide is respectively Following relational expression is met for x% and y%, x and y:

22 >=x >=27,33 >=y >=36

After coating is coated in matrix formation dry film, the computing formula of Vickers hardness Hv5 of dry film is:

$Hv5=18.173\&times;\frac{p}{d^2}\left(\frac{kg}{{\mathrm{mm}}^2}\right)$

Wherein p is 5, and d is the mean value of impression catercorner length in Vickers hardness test.

Method the most according to claim 9, it is characterised in that the build of the coating that described Anti-adhesion paint is formed is 65-75μm。