CN1046112C - Multi-layer anticorrosion and antiadhesion and easy-to-clean material - Google Patents

Multi-layer anticorrosion and antiadhesion and easy-to-clean material Download PDF

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CN1046112C
CN1046112C CN 93112541 CN93112541A CN1046112C CN 1046112 C CN1046112 C CN 1046112C CN 93112541 CN93112541 CN 93112541 CN 93112541 A CN93112541 A CN 93112541A CN 1046112 C CN1046112 C CN 1046112C
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layer
metal
paint film
intermediate layer
metal base
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CN 93112541
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CN1135411A (en
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章云祥
金禾生
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Shanghai Institute of Organic Chemistry of CAS
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Shanghai Institute of Organic Chemistry of CAS
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Abstract

The present invention relates to a multi-layer material which is used for preventing corrosion, sticking, oil and water and can be easily washed. The multi-layer material having the sub-illuminant color is composed of a metal base material, a middle paint film layer and a surface protective layer, wherein a surface processing layer (phosphate coating layer) and a bottom paint layer or a surface processing layer and the bottom paint layer can be arranged between the metal base material and the middle paint film layer, and the surface protective layer and the middle paint film layer are mainly made from F40G fluoroplastics. The multi-layer material can be used as chemical engendering equipment, such as the shell bodies of instruments and meters, office and kitchen articles, the shell bodies and the blades of exhaust fans and ventilators reaction kettles, etc., and can be also used as practical decorative materials, such as lamps, the vehicle frames, the chain covers, the mudguards, etc. of bicycles and motorcycles.

Description

The material of a kind of multi-layer anticorrosion, antiseized and easy cleaning
The present invention relates to material of a kind of multi-layer anticorrosion, antiseized and easy cleaning and uses thereof, production method of specifically a kind of multilayer material that contains plastic coating of fluoride and uses thereof.
The multilayer material that anti-corrosion material normally is made of base material and surface coating, base material be metal, timber, cement, lime stone etc. normally, and modal coating is paint etc., and what have goes back outer cover varnish protective layer.The eighties begins to use epoxy resin, the mixed-powder of epoxy resin and polyester or epoxy resin and polyurethane, be widely used in household appliances with the electrostatic powder spraying application as decorative coating, on the shell as refrigerator, micro-wave oven or instrument and meter, Kynoar or its copolymer are also succeeded in developing as external wall of high-rise building coating.But, because above-mentioned material is to oil and all less to the contact angle of water, as epoxy resin to water contact angle θ=50-55 °, to oily θ=22-25 °, even Kynoar (be called for short PVDF) is 82 ° to the contact angle of water, still less than polytetrafluoroethylene (PTFE) (being called for short PTFE) to contact angle θ=100 of water °.So with regard to waterproof and grease proofing performance, they are still undesirable as the superficial layer coating of decorative material.PTFE has well antiseized, grease proofing and Corrosion Protection, and non-stick pan extensively enters family.But because PTFE will use high temperature sintering (>400 ℃), general structural metal material just can't application form multilayer material, and color also is very limited therefrom.PTFE is little to metal adhesion power, and therefore, the multilayer material of PTFE coating and metal base need just can be made through specially treated in the metal surface, and the corresponding product price is also expensive.Usually layer of metal oxide layer (JP62269781 adheres on the metal surface, 59191735 and 59191736), fluoride (JP62269780) and chromate (JP62273846), yet coat the resin of tetrafluoroethene and other Fluorine containing olefine copolymer again, it is fluororesin-coated again after making the roughening of aluminum or aluminum alloy substrate surface passing through electrochemical corrosion or chemical attack that Sumitomo Electrics Industry Ltd had once reported, ground floor is the fluororesin (CN90102239.X) that contains filler, or containing mica (CN90110409.4), the second layer is not for containing the fluororesin of filler.Above-mentioned purpose all is in order to increase the bonding force of fluororesin and metal surface.The multilayer material of inferior photochromic application has appearred having in late nineteen eighties on household appliances shell, this to have inferior photochromic application multilayer material kind extremely limited.So people are still at the material of constantly exploring the inexpensive multilayer anticorrosion, antiseized, that oil preventing performance is good.
The present invention just provides a kind of multilayer material with anticorrosion, antiseized, grease proofing, waterproof and easy cleaning, and this multilayer material can be made as required has the photochromic multilayer material in versicolor Asia.The shell that can be used for household electrical appliances, instrument and meter also can be used for vehicle frame, chain guard and the dashboard etc. of bicycle, motorcycle, also can be used for various kitchens and office appliance, and it still is the material of chemical industry equipment, also can be used for reactor.
Zhang Yunxiang etc. have invented the terpolymer of a kind of tetrafluoroethene----ethene, by tetrafluoroethene 60-40%, and ethene 40-60%, content forms for the first two the 3rd monomer copolymerization of planting the 0.1-10% of the total mole number of monomer, and the 3rd monomer is that to have molecular formula be CF 2XCOCF 2The perhalogenation ketone of X ' or molecular formula are R-C (R ')=CHR " alkene, wherein X=X '=Cl or F, R=CF 3Or CH 3, R '=CF 3, CH 3Or H, R "=H or F (CN 85100468.7), the 3rd monomer can also be R 1-C (R 2)=C-(R 3) 2, R wherein 1=CF 3Or CH 3, R 2=CF 3, CH 3Or H, R 3=H or F (U.S.P.467884,1987), its hear resistance, chemical resistance all are better than PVDF.Be a kind of thermoplastic, easily machine-shaping.Melt flow property is better than the copolymer (FEP) of tetrafluoroethene----hexafluoropropene.Metal is had good adhesion, and it is to oily contact angle θ=67 °, and to water contact angle θ=96 °, it is the feature with fluoroplastics that the machine-shaping temperature is lower than PTFE (≤320 ℃), has easy machining characteristics again, is called for short F40G.Zhang Yunxiang etc. have also invented a kind of coating (CN 92108410.2) of using the terpolymer composition of above-mentioned tetrafluoroethene----ethene and a small amount of the 3rd monomer, are made up of above-mentioned terpolymer F40G and additive.Additive therefor is metal oxide or sulfide, carbon black, graphite, talcum powder, glass dust, dyestuff, inorganic pigment, glass fibre, carbon fiber and the organic high molecular polymer except that fluoroplastics, as polyphenylene sulfide, chlorinated polyether, polysulfones, the powder of one or more in the above-mentioned additive such as polyimides or polyurethane, terpolymer F40G and additive weight ratio are 1: 0-9, when adopting organic high molecular polymer to make additive is 1: 0.0001-9, recommend than being 1: 0.1-9, when adopting above-mentioned inorganic matter, dyestuff, when glass fibre or carbon fiber are made additive, both weight ratios are 1: 0.0001-0.3, recommend than being 1: 0.005-0.1.
Multi-layer anticorrosion of the present invention, antiseized material are by metal base, and the sealer on the paint film intermediate layer on the metal base (also can be described as the intermediate colored layer) and the paint film intermediate layer is formed.Described metal base is black or non-ferrous metal and alloy thereof, as metal and metal alloys thereof such as iron, steel, copper, aluminium, nickel, manganese, zinc, chromium.Described paint film intermediate layer is exactly that above-mentioned F40G and one or more filler, metal oxide, inorganic or organic pigment are formed.The weight ratio of F40G and additive is recommended as 1: 0.0001-0.25.Additive can be inorganic pigment or metal oxides such as copper powder aluminium powder, cadmium red, cadmium yellow, chrome yellow, cobalt aluminate, chromium oxide, titanium oxide, zinc oxide, carbon black, graphite, and filler can be glass fibre, carbon fiber, talcum powder, glass dust etc.Organic pigment can be azo condensed type pigment, phthalocyanine color, anthraquinone pigment, indoline ketone organic pigment, quinacridine ketone organic pigment, daylight fluorescent pigment etc.Described sealer is F40G.
For the color that makes described intermediate layer can present and practicality, the paint film intermediate layer thickness can be 0.01-1mm, and recommendation thickness is 0.03-0.15mm, and the surface protection layer thickness can be 0.001-0.5mm, recommends 0.01-0.10mm.
In order to increase the cementitiousness of paint film intermediate layer and metal base, metal base needs decontamination usually, deoils and clean to improve adhesive force.The all right blasting treatment in metal surface, can also prime earlier, promptly between metal base and paint film intermediate layer, one deck priming paint can also be arranged, priming paint can be electrophoretic primer, or the priming paint of forming by F40G and additive, F40G and additive weight ratio are 1: 0.001-0.50, recommend than being 1: 0.001-0.25, described priming paint additive is one or more a mixture of polyphenylene sulfide, polyurethane, epoxy resin, polyester, chlorinated polyether, polysulfones, polyimide and they, can also add metal oxide, graphite, carbon black on a small quantity.In order to reach same purpose, metallic substrate surface also can be handled or handle with metal surface cleaning liquid through phosphatization, at this moment between metal base and the paint film intermediate layer or and priming paint between also can increase one deck phosphate coating or Treatment of Metal Surface layer, to form four materials to five-layer structure.
Multilayer material of the present invention can be after whenever being coated with layer of material on the metal base, and oven dry is coated with one deck again and dries until forming multilayer material again, dries in the lump after also can spraying material successively.For saving material and preventing to ooze mutually to mix, be advisable with oven dry after every layer of spraying.Between bake out temperature 200-300 ℃, suit, should form inferior photochromic 250-285 ℃ of oven dry.The electrostatic powder coating method is preferably adopted in coating process.
The terpolymer of the tetrafluoroethene that is adopted in the multilayer material of the present invention---ethene is that to have melt flow index MI be 4-100 gram/10 minutes (297 ℃ of mensuration) F40G to 0.1-20 Grams Per Minute (278 ℃ of mensuration).Preferably adopt 20-300 purpose powder, be applicable to electrostatic powder spraying.
Multilayer material mechanical strength of the present invention is higher, and pliability, resistance to impact are all strong than common paint film and enamel, has anticorrosion, antiseized, antifouling, waterproof, grease proofing and surperficial nonconducting feature, also can have the inferior light stream circumstances in which people get things ready for a trip.Therefore, the housing that not only can be used as instrument and meter, the material of office appliance and kitchen articles, as exhaust blower and range hood engine housing and fan blade, combined kitchen cabinet etc., also can be used as decorative material and chemical anticorrosion material, as vehicle frame, dashboard and the chain guard of light fixture, Bicycles and Motorcycles, reactor etc.
Following embodiment will help further to understand the present invention.
1-metal base among the figure, 2-phosphate coating or Treatment of Metal Surface layer, 3-priming paint,
4-paint film intermediate layer, the 5-sealer
Embodiment 1
Fig. 1 is a kind of multilayer material of being made up of metal base, paint film intermediate layer and sealer.
(1) with MI is the F40G20-300 purpose powder of 4-100 gram/10 minutes (297 ℃ of mensuration) and fluorescent red powder, aluminium powder, after weight ratio mixing in 1: 0.002: 0.0025, evenly be sprayed on mixture on the aluminium alloy plate with electrostatic powder spraying, after the drying, spraying covers one deck F40G again, 250-285 ℃ of oven dry.Grease proofing, not sticking, anticorrosion and inferior photochromic material is arranged, can be used as the kitchen cabinet material.
(2) 1: 0.010 weight ratio of above-mentioned F40G powder and carbon black powders is mixed, be coated on the range hood machine blade after the cleaning, continue spraying one deck F40G, oven dry with electrostatic powder spraying.The fan blade of not sticking, grease proofing, anticorrosion and easy cleaning.Embodiment 2
Fig. 2 is a kind of explosion views of the multilayer material pipe of being made up of metal base, phosphate coating, priming paint, paint film intermediate layer and sealer.
After tubular steel alloy appearance cleaning, carry out alramenting with commercially available phosphatization liquid, to contain the F40G powder, epoxy powder (E51, E12 or E03) or the powder of pps powder and zinc oxide or iron oxide or cobalt aluminate by weight 1: after 0.001-0.025: 0.001-0.005 mixes, evenly be sprayed on the phosphate coating with electrostatic powder spraying, the surface sprays the thick F40G powder of one deck 0.01-0.25mm again, through 250-285 ℃ of oven dry, have inferior photochromic anticorrosion, antiseized, grease proofing, the tubing of waterproof and easy cleaning, can be used as cycle frame, also can make the cycle frame of tool multilayer material by this method with whole bike metal frame.Embodiment 3
Fig. 3 is the explosion views of the another kind of multilayer material pipe of being made up of metal base, Treatment of Metal Surface layer, priming paint, paint film intermediate layer and sealer.
With tubular steel through surface clean, surface after commercially available MP-7 cleaning fluid is handled, dressing electrophoresis black primer, again with F40G, commercially available solid U.S. saturating (Cromophthol) or gorgeous good bright pigment and zinc oxide, weight ratio is 1: the mixed-powder electrostatic spraying of 0.0001-0.8: 0.0001-0.2, spray one deck F40G powder again, then 250-285 ℃ of oven dry, can be the material of photochromic anticorrosion, antiseized, grease proofing, the waterproof in various Asias, easy cleaning.Survey adhesive force 〉=secondary with the GB1720-79 standard.Be higher than the adhesive force that organic pigment is coated with rete.Embodiment 4
Fig. 4 is the cutaway view of the multilayer material reactor of a kind of metal base, priming paint, paint film intermediate layer and sealer composition.Fig. 4-the 1st, the longitudinal sectional view of the pot of reactor, Fig. 4-the 2nd, the cutaway view at A-A place presents sandwich construction among Fig. 4-1.
Cast iron metal reaction still shell body is after cleaning, sandblast, handle with commercially available MP-7 cleaning fluid, the reactor inner-wall spraying contains F40G, epoxy resin and carbon black weight ratio are followed successively by 1: the mixed-powder of 0.0010-0.006: 0.010-0.10, electrostatic spraying one deck F40G, graphite or metal oxide or inorganic pigment weight ratio are 1 above it: the mixed-powder of 0.01-0.1, cover one deck F40G again, through 200-290 ℃ of oven dry, anticorrosion and antiseized reactor, its adhesion strength is better than enamel, overcome enamel fragility, the shortcoming that sintering temperature is high.This reactor shell can be coated protective paint.Embodiment 5
As the material of the described multi-layer anticorrosion of embodiment 1-4, antiseized and easy cleaning, the various inorganic acids of its coating ability, alkali and organic solvent, the surface is difficult for things such as long-pending oil, water, solvent, dust, and is easy to cleaning.Coating has following main performance:
Coating main performance tensile strength:>300kg/cm 2Impact strength: 〉=50kgcm, not broken hardness: 〉=R45 adhesive force: one-level flammability: do not fire continuous serviceability temperature: 150 ℃ of solvent resistances: excellent volume resistance:>10 16Ω cm

Claims (10)

  1. The multilayer material of anticorrosion, antiseized, grease proofing, waterproof that contains paint film intermediate layer on metal base, the metal base and the sealer on the paint film interlayer surfaces and easy cleaning, it is characterized in that described sealer is the terpolymer of tetrafluoroethene, ethene; monomer grammole in copolymer consists of tetrafluoroethene 60-40%; ethene 40-60%; the 3rd content of monomer is that the first two plants the 0.1-10% of the total mole number of monomer, and the 3rd monomer is that to have molecular formula be CF 2XCOCF 2The perhalogenation ketone of X ' or molecular formula are R-C (R ')=CHR 2" alkene, wherein X=X '=Cl or F, or R=CF 3Or CH 3, R '=CF 3, CH 3Or H, R "=H or F, described paint film intermediate layer is made up of above-mentioned terpolymer and one or more filler, metal oxide, additive inorganic or organic pigment, and the weight ratio of terpolymer and additive is 1: 0.0001-0.25.
  2. 2. multilayer material as claimed in claim 1, it is characterized in that described filler is glass fibre, carbon fiber, talcum powder, glass dust, metal oxide or inorganic pigment are copper powder, aluminium powder, cadmium yellow, chrome yellow, brill orchid, chromium oxide, titanium oxide, zinc oxide, carbon black, graphite, and organic pigment is azo condensed type pigment, phthalocyanine color, anthraquinone pigment, indoline ketone organic pigment, quinacridine ketone organic pigment, daylight fluorescent pigment.
  3. 3. as claims 1 described multilayer material, it is characterized in that also having prime coat or phosphate coating or Treatment of Metal Surface layer between metal base and the paint film intermediate layer, described phosphate coating is the phosphate coating that the metal surface forms after etching solution is handled, described Treatment of Metal Surface layer is matallic surface layer is stayed in the metal surface after metal surface treating liquid is handled a material, described prime coat is an electrophoretic primer, or described terpolymer and additive are 1 with weight ratio: the priming paint of 0001-0.50, described additive is a polyphenylene sulfide, polyurethane, epoxy resin, polyester, chlorinated polyether, polysulfones, the mixture of one or more of polyimides and they can also contain little metal oxide or carbon black or graphite.
  4. 4. multilayer material as claimed in claim 3 is characterized in that having phosphate coating or Treatment of Metal Surface layer on metal base, on phosphate coating or the matallic surface layer priming paint is arranged, and is made up of the sealer on paint film intermediate layer and the paint film intermediate layer on the priming paint.
  5. 5. as claim 1,2,3 or 4 described multilayer materials, the thickness that it is characterized in that described paint film intermediate layer is 0.01-1mm, and the surface protection layer thickness is 0.001-0.5mm.
  6. As claim 1,2,3, the 4 or 5 described metal bases that contain metal base, handled through phosphatization or surface treatment liquid or after phosphatization or surface treatment again through the production method of the multilayer material of the metal base of prime treatment, it is characterized in that described paint film intermediate layer, terpolymer powder are sprayed on the above-mentioned base material successively, oven dry sprays layer of material down after perhaps every spraying one deck oven dry again.
  7. 7. the production method of multilayer material as claimed in claim 6 is characterized in that drying under 250-285 ℃ of inferior photochromic temperature of generation.
  8. 8. as the purposes of claim 1,2,3,4,5,6 or 7 described multilayer materials, it is characterized in that being used for vehicle frame, fender or the chain guard of bicycle or motorcycle.
  9. 9. as the purposes of claim 1,2,3,4,5,6 or 7 described multilayer materials, it is characterized in that being used for casing, hood or the impeller of ventilating fan or range hood.
  10. 10. as the purposes of claim 1,2,3,4,5,6 or 7 described multilayer materials, it is characterized in that being used for reactor.
CN 93112541 1992-09-15 1993-09-02 Multi-layer anticorrosion and antiadhesion and easy-to-clean material Expired - Fee Related CN1046112C (en)

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CN92221314.3 1992-09-15
CN92221314 1992-09-15
CN 93112541 CN1046112C (en) 1992-09-15 1993-09-02 Multi-layer anticorrosion and antiadhesion and easy-to-clean material

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CN102964992A (en) * 2012-12-13 2013-03-13 青岛海尔软件有限公司 Coating scheme of anti-corrosion coating
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US20180216247A1 (en) * 2015-09-11 2018-08-02 Hewlett-Packard Development Company, L.P. Light metal based multi-layer substrates
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CN112474233A (en) * 2020-12-21 2021-03-12 西北师范大学 Efficient anticorrosive coating with self-cleaning performance and preparation method thereof

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* Cited by examiner, † Cited by third party
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CN100379499C (en) * 2002-05-29 2008-04-09 施密德吕纳股份公司 Method for applying coatings to surfaces

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