CN102181214A - Baking varnish for magnesium aluminum alloy base material and preparation and using methods thereof - Google Patents
Baking varnish for magnesium aluminum alloy base material and preparation and using methods thereof Download PDFInfo
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- CN102181214A CN102181214A CN201110095041XA CN201110095041A CN102181214A CN 102181214 A CN102181214 A CN 102181214A CN 201110095041X A CN201110095041X A CN 201110095041XA CN 201110095041 A CN201110095041 A CN 201110095041A CN 102181214 A CN102181214 A CN 102181214A
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- baking vanish
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- 239000000463 material Substances 0.000 title claims abstract description 80
- 238000002360 preparation method Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 28
- 229910000838 Al alloy Inorganic materials 0.000 title abstract description 7
- 239000002966 varnish Substances 0.000 title abstract 7
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 title abstract 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 125
- 229920000728 polyester Polymers 0.000 claims abstract description 124
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 47
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 47
- 239000002904 solvent Substances 0.000 claims abstract description 43
- 239000002318 adhesion promoter Substances 0.000 claims abstract description 35
- 229920003180 amino resin Polymers 0.000 claims abstract description 31
- 239000000945 filler Substances 0.000 claims abstract description 31
- 239000000080 wetting agent Substances 0.000 claims abstract description 31
- 238000003756 stirring Methods 0.000 claims abstract description 29
- 238000005303 weighing Methods 0.000 claims abstract description 13
- 229910001051 Magnalium Inorganic materials 0.000 claims description 72
- 239000002253 acid Substances 0.000 claims description 48
- 238000012986 modification Methods 0.000 claims description 46
- 230000004048 modification Effects 0.000 claims description 46
- 239000000126 substance Substances 0.000 claims description 34
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 claims description 32
- 239000007787 solid Substances 0.000 claims description 32
- 238000000576 coating method Methods 0.000 claims description 30
- 239000013530 defoamer Substances 0.000 claims description 30
- 239000006185 dispersion Substances 0.000 claims description 30
- 239000011248 coating agent Substances 0.000 claims description 26
- 125000000524 functional group Chemical group 0.000 claims description 18
- 229920005989 resin Polymers 0.000 claims description 18
- 239000011347 resin Substances 0.000 claims description 18
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 claims description 16
- 239000004593 Epoxy Substances 0.000 claims description 16
- 229920001400 block copolymer Polymers 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 16
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical group O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 16
- 239000000049 pigment Substances 0.000 claims description 16
- 229920000768 polyamine Polymers 0.000 claims description 16
- 229920000642 polymer Polymers 0.000 claims description 16
- 238000009775 high-speed stirring Methods 0.000 claims description 12
- 238000005304 joining Methods 0.000 claims description 12
- 239000004922 lacquer Substances 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims 2
- 238000005507 spraying Methods 0.000 abstract description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract 1
- 239000003085 diluting agent Substances 0.000 abstract 1
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 239000003822 epoxy resin Substances 0.000 abstract 1
- 229920000647 polyepoxide Polymers 0.000 abstract 1
- 239000013557 residual solvent Substances 0.000 abstract 1
- 239000002585 base Substances 0.000 description 95
- 210000003298 dental enamel Anatomy 0.000 description 52
- 239000003973 paint Substances 0.000 description 52
- 230000007797 corrosion Effects 0.000 description 17
- 238000005260 corrosion Methods 0.000 description 17
- 238000005516 engineering process Methods 0.000 description 15
- 238000002203 pretreatment Methods 0.000 description 11
- 229910000861 Mg alloy Inorganic materials 0.000 description 7
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 description 2
- 229910000400 magnesium phosphate tribasic Inorganic materials 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- -1 phosphate compound Chemical class 0.000 description 2
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010094 polymer processing Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a baking varnish for a magnesium aluminum alloy base material and preparation and using methods thereof. The preparation method comprises the following steps of: (1) adding polyester modified acrylic resin, epoxy resin, an anti-forming agent, a dispersing agent, a wetting agent, a leveling agent, and a part of solvent in a certain ratio into a stirring kettle sequentially and stirring; (2) adding color paste, filler, and an antisetting agent and stirring in a high speed; and (3) finally adding amino resin, adhesion promoter, and residual solvent and uniformly stirring to finish the whole preparation process of the polyester baking varnish. The using method of the prepared polyester baking varnish for the magnesium aluminum alloy base material comprises the following steps of: weighing the polyester baking varnish for the magnesium aluminum alloy base material, stirring uniformly in the weight ratio of the polyester baking varnish to diluents of 1:(0.4-0.6), spraying to the magnesium aluminum alloy base material, placing for 10 to 20 minutes, baking at the temperature of between 150 and 170 DEG C for 20 to 30 minutes, and baking and curing to obtain the polyester baking varnish layer.
Description
Technical field
The present invention relates to baking vanish, especially magnalium base material baking vanish and preparation method thereof and using method.
Background technology
Magnesium alloy is a lightest present metal engineering material, and density 1. 74 g/ cm3 only are 2/ 3 of aluminium, 1/ 4 of iron, while intensity height, conduction, good heat conductivity, have good damping shock absorption and capability of electromagnetic shielding concurrently, and power consumption of polymer processing is low, can directly reclaims.Therefore, it has been subjected to generally paying attention in industries such as automobile, space flight, electronics, is described as the green engineering material of 21 century.Yet, because magnesium alloy has extremely strong electrochemical activity, be used for structural part and be faced with serious etching problem, as the general corrosion brought with the galvanic corrosion of different metallic contact part, burn into road ice-removal salt that lightweight motor piece internal surface is subjected to refrigerant etc.In numerous magnesium alloy anticorrosion measures (high purity alloys, new alloy, ion implantation, fast solidification technology, sealer etc.); the coating protection technical costs is low and technology is simple; but because factors such as magnesium alloy self chemically reactive and casting flaw have brought very big difficulty for the coating of traditional coating; so to obtain the coating of high tack, strong solidity to corrosion and aesthetic appearances at Mg alloy surface, just must be through correct pretreatment technology.Though can obtain bonding force and corrosion resistance nature preferably through suitable pre-treatment, also have the problem of aspects such as rete is non-conductive, environmental protection.
Summary of the invention
One of technical problem to be solved by this invention provides the baking vanish that a kind of magnalium base material is used, and utilizes baking vanish of the present invention, and the magnalium base material is not needed to carry out the coating that pre-treatment just can obtain high tack, strong solidity to corrosion and aesthetic appearances.
Two of technical problem to be solved by this invention provides the preparation method of the baking vanish that a kind of magnalium base material uses, and operation is simple, can form sticking power at the magnalium substrate surface and be 1 grade, strong solidity to corrosion, has good ornamental complete filming.
Three of technical problem to be solved by this invention provides the using method of the baking vanish that a kind of magnalium base material uses, because the magnalium base material is not needed to carry out pre-treatment, directly spraying baking vanish of the present invention just can obtain the coating of high tack, strong solidity to corrosion and aesthetic appearances, construction technology is simple, reduced pretreatment technology, material resources that time and manpower is saved, thus cost reduced.
For one of solving the problems of the technologies described above, technical scheme of the present invention is: the baking vanish that a kind of magnalium base material is used, and in parts by weight, prescription comprises following component:
10 ~ 20 parts of polyester modification acrylic resins
28 ~ 35 parts of mill bases
20 ~ 25 parts of part fillers
3 ~ 5 parts in aminoresin
8 ~ 10 parts of Resins, epoxy
3 ~ 6 parts of solvents
0.3 ~ 0.5 part of dispersion agent
0.1 ~ 0.3 part of wetting agent
0.3 ~ 0.5 part of flow agent
0.3 ~ 0.5 part of defoamer
0.5 ~ 1.2 part of anti-settling agent
8.5 ~ 11 parts of adhesion promoters.
Utilize baking vanish of the present invention, the magnalium base material is not needed to carry out the coating that pre-treatment just can obtain high tack, strong solidity to corrosion and aesthetic appearances.
As optimal way, described polyester modification acrylic resin solids content is 60+2%, and acid number is 1 ~ 2mg/g, and the aminoresin solids content is 80+2%.
As optimal way, described mill base is the mill base that is ground by the polyester modification acrylic resin, and filler is a talcum powder, and solvent comprises 3% fourth fat and 3% diacetone alcohol.
As optimal way, described defoamer is non-silicon class special polymer, dispersion agent is the high molecular weight block copolymer that contains affine pigment group, wetting agent is the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight, flow agent is a fluorin modified crylic acid fat flow agent, anti-settling agent is a polyamine wax anti-settling agent, and adhesion promoter comprises the phosphatization compound type and 6% that 5% polyester is a main chain and contains the polymkeric substance of completing basic functional group.
For solve the problems of the technologies described above two, technical scheme of the present invention is: the preparation method of the baking vanish that a kind of magnalium base material is used may further comprise the steps:
(1) polyester modification acrylic resin, Resins, epoxy, defoamer, dispersion agent, wetting agent, flow agent and partial solvent are joined in the stirring tank successively, under 400 ~ 800r/min speed conditions, stirred 5 ~ 10 minutes;
(2) add mill base, anti-settling agent, filler, under 800 ~ 1200r/min speed conditions, high-speed stirring was disperseed 30 ~ 40 minutes;
(3) add aminoresin, adhesion promoter, solvent at last, under 400 ~ 600r/min speed conditions, stirred 20 ~ 30 minutes, can finish the preparation process of whole baking vanish.
Preparation section of the present invention is simple, can form sticking power at the magnalium substrate surface and be 1 grade, strong solidity to corrosion, has good ornamental complete filming.
As optimal way, described polyester modification acrylic resin solids content is 60+2%, and acid number is 1 ~ 2mg/g, and the aminoresin solids content is 80+2%.
As optimal way, described mill base is the mill base that is ground by the polyester modification acrylic resin, and filler is a talcum powder, and solvent comprises 3% fourth fat and 3% diacetone alcohol.
As optimal way, described defoamer is non-silicon class special polymer, dispersion agent is the high molecular weight block copolymer that contains affine pigment group, wetting agent is the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight, flow agent is a fluorin modified crylic acid fat flow agent, anti-settling agent is a polyamine wax anti-settling agent, and adhesion promoter comprises the phosphatization compound type and 6% that 5% polyester is a main chain and contains the polymkeric substance of completing basic functional group.
For solve the problems of the technologies described above three, technical scheme of the present invention is: take by weighing the baking vanish that the magnalium base material is used, in joining the lacquer ratio: baking vanish: thinner=1:0.4 ~ 0.6(is in parts by weight) stir after, be sprayed on the magnalium base material, placed then 10 ~ 20 minutes, toasted 20 ~ 30 minutes under 150 ℃ ~ 170 ℃ conditions at last, baking-curing obtains the baking vanish coating.
The present invention is not owing to need to carry out pre-treatment to the magnalium base material, directly spraying baking vanish of the present invention just can obtain the coating of high tack, strong solidity to corrosion and aesthetic appearances, and construction technology is simple, has reduced pretreatment technology, material resources that time and manpower is saved, thus cost reduced.
As optimal way, described polyester modification acrylic resin solids content is 60+2%, and acid number is 1 ~ 2mg/g, and the aminoresin solids content is 80+2%; Described mill base is the mill base that is ground by the polyester modification acrylic resin, and filler is a talcum powder, and solvent comprises 3% fourth fat and 3% diacetone alcohol; Defoamer is non-silicon class special polymer, dispersion agent is the high molecular weight block copolymer that contains affine pigment group, wetting agent is the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight, flow agent is a fluorin modified crylic acid fat flow agent, anti-settling agent is a polyamine wax anti-settling agent, and adhesion promoter comprises the phosphatization compound type and 6% that 5% polyester is a main chain and contains the polymkeric substance of completing basic functional group.
The beneficial effect that the present invention is compared with prior art brought is:
1, because the magnalium base material is not needed to carry out pre-treatment, directly sprays the coating that baking vanish of the present invention just can obtain high tack, strong solidity to corrosion and aesthetic appearances, therefore, because construction technology is simple, reduced pretreatment technology, material resources that time and manpower is saved, thus reduced cost; The present invention is not because following reason need be carried out pre-treatment: (1) is because the corrosion product of magnesium alloy is alkalescence; the present invention has adopted the most alkali proof Resins, epoxy that adapts with body series; (2) the present invention has adopted a kind of adhesion promoter; it is to contain the polymkeric substance of completing basic functional group; can at high temperature react with the hydroxyl in the resin; and formation hinge polyester coating; thereby effectively improve adhesive force of coatings; (3) to have adopted a kind of be that the phosphate compound of main chain is as adhesion promoter with the polyester in the present invention; its bound phosphate groups that is rich in can interact with the metal ion that corrosion reaction generates and form phosphate coating based on trimagnesium phosphate at surface of magnesium aluminium alloy, thereby effectively improves adhesive force of coatings.
2, because the magnalium base material is not needed to carry out pre-treatment, because and rete that cause nonconducting problem bad as pre-treatment, the while can not caused environmental pollution problems yet with regard to having solved.
Embodiment
Embodiment 1
The method steps of the baking vanish that preparation magnalium base material is used is as follows:
(1) with 10 gram polyester modification acrylic resins, 8 gram Resins, epoxy, 0.3 gram defoamer, 0.3 gram dispersion agent, 0.1 gram wetting agent, 0.3 gram flow agent, and 2 gram solvents join successively in the stirring tank, under the 400r/min speed conditions, stirred 5 minutes;
(2) add 28 gram mill bases, 20 gram fillers, 0.5 gram anti-settling agent, under the 800r/min speed conditions, high-speed stirring was disperseed 30 minutes;
(3) add 3 gram aminoresin, 8.5 gram adhesion promoters, 1 gram solvent at last, under the 400r/min speed conditions, stirred 20 minutes, can finish the preparation process of whole enamel polyester paint.
The using method of the enamel polyester paint that the magnalium base material that utilizes present embodiment to prepare is used is: take by weighing the enamel polyester paint that the magnalium base material is used, in joining the lacquer ratio: enamel polyester paint: thinner=1:0.4(is in parts by weight) stir after, be sprayed on the magnalium base material, placed 10 minutes, toasted 20 minutes under 150 ℃ of conditions at last, baking-curing obtains the enamel polyester paint coating.
Above-mentioned polyester modification acrylic resin solids content is 60+2%, and acid number is 1 ~ 2mg/g, and the aminoresin solids content is 80+2%; Described mill base is the mill base that is ground by the polyester modification acrylic resin, and filler is a talcum powder, and solvent comprises 3% fourth fat and 3% diacetone alcohol; Defoamer is non-silicon class special polymer, model is EFKA2720, dispersion agent is the high molecular weight block copolymer that contains affine pigment group, model is BYK163, wetting agent is the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight, model is X-401, flow agent is a fluorin modified crylic acid fat flow agent, model is EFKA3777, anti-settling agent is a polyamine wax anti-settling agent, model is 6900-20HV, and it is that the phosphatization compound model of main chain is 1008 and 6% to contain the polymkeric substance 1003 of completing basic functional group that adhesion promoter comprises 5% polyester.
Embodiment 2
The method steps of the baking vanish that preparation magnalium base material is used is as follows:
(1) with 11 gram polyester modification acrylic resins, 8.2 gram Resins, epoxy, 0.32 gram defoamer, 0.32 gram dispersion agent, 0.12 gram wetting agent, 0.32 gram flow agent, and 2.15 gram solvents join in the stirring tank successively, under the 440r/min speed conditions, stirred 5 minutes;
(2) add 28.7 gram mill bases, 20.5 gram fillers, 0.57 gram anti-settling agent, under the 840r/min speed conditions, high-speed stirring was disperseed 31 minutes;
(3) add 3.2 gram aminoresin, 8.75 gram adhesion promoters, 1.15 gram solvents at last, under the 420r/min speed conditions, stirred 21 minutes, can finish the preparation process of whole enamel polyester paint.The using method of the enamel polyester paint that the magnalium base material that utilizes present embodiment to prepare is used is: take by weighing the enamel polyester paint that the magnalium base material is used, in joining the lacquer ratio: enamel polyester paint: thinner=1:0.4(is in parts by weight) stir after, be sprayed on the magnalium base material, placed 11 minutes, toasted 21 minutes under 152 ℃ of conditions at last, baking-curing obtains the enamel polyester paint coating.
Above-mentioned polyester modification acrylic resin solids content is 60+2%, and acid number is 1 ~ 2mg/g, and the aminoresin solids content is 80+2%; Described mill base is the mill base that is ground by the polyester modification acrylic resin, and filler is a talcum powder, and solvent comprises 3% fourth fat and 3% diacetone alcohol; Defoamer is non-silicon class special polymer, model is EFKA2720, dispersion agent is the high molecular weight block copolymer that contains affine pigment group, model is BYK163, wetting agent is the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight, model is X-401, flow agent is a fluorin modified crylic acid fat flow agent, model is EFKA3777, anti-settling agent is a polyamine wax anti-settling agent, model is 6900-20HV, and it is that the phosphatization compound model of main chain is 1008 and 6% to contain the polymkeric substance 1003 of completing basic functional group that adhesion promoter comprises 5% polyester.
Embodiment 3
The method steps of the baking vanish that preparation magnalium base material is used is as follows:
(1) with 12 gram polyester modification acrylic resins, 8.4 gram Resins, epoxy, 0.34 gram defoamer, 0.34 gram dispersion agent, 0.14 gram wetting agent, 0.34 gram flow agent, and 2.3 gram solvents join in the stirring tank successively, under the 480r/min speed conditions, stirred 6 minutes;
(2) add 29.4 gram mill bases, 21 gram fillers, 0.64 gram anti-settling agent, under the 880r/min speed conditions, high-speed stirring was disperseed 32 minutes;
(3) add 3.4 gram aminoresin, 9 gram adhesion promoters, 1.3 gram solvents at last, under the 440r/min speed conditions, stirred 22 minutes, can finish the preparation process of whole enamel polyester paint.The using method of the enamel polyester paint that the magnalium base material that utilizes present embodiment to prepare is used is: take by weighing the enamel polyester paint that the magnalium base material is used, in joining the lacquer ratio: enamel polyester paint: thinner=1:0.4(is in parts by weight) stir after, be sprayed on the magnalium base material, placed 12 minutes, toasted 22 minutes under 154 ℃ of conditions at last, baking-curing obtains the enamel polyester paint coating.
Above-mentioned polyester modification acrylic resin solids content is 60+2%, and acid number is 1 ~ 2mg/g, and the aminoresin solids content is 80+2%; Described mill base is the mill base that is ground by the polyester modification acrylic resin, and filler is a talcum powder, and solvent comprises 3% fourth fat and 3% diacetone alcohol; Defoamer is non-silicon class special polymer, model is EFKA2720, dispersion agent is the high molecular weight block copolymer that contains affine pigment group, model is BYK163, wetting agent is the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight, model is X-401, flow agent is a fluorin modified crylic acid fat flow agent, model is EFKA3777, anti-settling agent is a polyamine wax anti-settling agent, model is 6900-20HV, and it is that the phosphatization compound model of main chain is 1008 and 6% to contain the polymkeric substance 1003 of completing basic functional group that adhesion promoter comprises 5% polyester.
Embodiment 4
The method steps of the baking vanish that preparation magnalium base material is used is as follows:
(1) with 13 gram polyester modification acrylic resins, 8.6 gram Resins, epoxy, 0.36 gram defoamer, 0.36 gram dispersion agent, 0.16 gram wetting agent, 0.36 gram flow agent, and 2.45 gram solvents join in the stirring tank successively, under the 520r/min speed conditions, stirred 6 minutes;
(2) add 30.1 gram mill bases, 21.5 gram fillers, 0.71 gram anti-settling agent, under the 920r/min speed conditions, high-speed stirring was disperseed 33 minutes;
(3) add 3.6 gram aminoresin, 9.25 gram adhesion promoters, 1.45 gram solvents at last, under the 460r/min speed conditions, stirred 23 minutes, can finish the preparation process of whole enamel polyester paint.The using method of the enamel polyester paint that the magnalium base material that utilizes present embodiment to prepare is used is: take by weighing the enamel polyester paint that the magnalium base material is used, in joining the lacquer ratio: enamel polyester paint: thinner=1:0.4(is in parts by weight) stir after, be sprayed on the magnalium base material, placed 13 minutes, toasted 23 minutes under 156 ℃ of conditions at last, baking-curing obtains the enamel polyester paint coating.
Above-mentioned polyester modification acrylic resin solids content is 60+2%, and acid number is 1 ~ 2mg/g, and the aminoresin solids content is 80+2%; Described mill base is the mill base that is ground by the polyester modification acrylic resin, and filler is a talcum powder, and solvent comprises 3% fourth fat and 3% diacetone alcohol; Defoamer is non-silicon class special polymer, model is EFKA2720, dispersion agent is the high molecular weight block copolymer that contains affine pigment group, model is BYK163, wetting agent is the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight, model is X-401, flow agent is a fluorin modified crylic acid fat flow agent, model is EFKA3777, anti-settling agent is a polyamine wax anti-settling agent, model is 6900-20HV, and it is that the phosphatization compound model of main chain is 1008 and 6% to contain the polymkeric substance 1003 of completing basic functional group that adhesion promoter comprises 5% polyester.
Embodiment 5
The method steps of the baking vanish that preparation magnalium base material is used is as follows:
(1) with 14 gram polyester modification acrylic resins, 8.8 gram Resins, epoxy, 0.38 gram defoamer, 0.38 gram dispersion agent, 0.18 gram wetting agent, 0.38 gram flow agent, and 2.6 gram solvents join in the stirring tank successively, under the 560r/min speed conditions, stirred 7 minutes;
(2) add 30.8 gram mill bases, 22 gram fillers, 0.78 gram anti-settling agent, under the 960r/min speed conditions, high-speed stirring was disperseed 34 minutes;
(3) add 3.8 gram aminoresin, 9.5 gram adhesion promoters, 1.6 gram solvents at last, under the 480r/min speed conditions, stirred 24 minutes, can finish the preparation process of whole enamel polyester paint.The using method of the enamel polyester paint that the magnalium base material that utilizes present embodiment to prepare is used is: take by weighing the enamel polyester paint that the magnalium base material is used, in joining the lacquer ratio: enamel polyester paint: thinner=1:0.5(is in parts by weight) stir after, be sprayed on the magnalium base material, placed 14 minutes, toasted 24 minutes under 158 ℃ of conditions at last, baking-curing obtains the enamel polyester paint coating.
Above-mentioned polyester modification acrylic resin solids content is 60+2%, and acid number is 1 ~ 2mg/g, and the aminoresin solids content is 80+2%; Described mill base is the mill base that is ground by the polyester modification acrylic resin, and filler is a talcum powder, and solvent comprises 3% fourth fat and 3% diacetone alcohol; Defoamer is non-silicon class special polymer, model is EFKA2720, dispersion agent is the high molecular weight block copolymer that contains affine pigment group, model is BYK163, wetting agent is the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight, model is X-401, flow agent is a fluorin modified crylic acid fat flow agent, model is EFKA3777, anti-settling agent is a polyamine wax anti-settling agent, model is 6900-20HV, and it is that the phosphatization compound model of main chain is 1008 and 6% to contain the polymkeric substance 1003 of completing basic functional group that adhesion promoter comprises 5% polyester.
Embodiment 6
The method steps of the baking vanish that preparation magnalium base material is used is as follows:
(1) with 15 gram polyester modification acrylic resins, 9 gram Resins, epoxy, 0.4 gram defoamer, 0.4 gram dispersion agent, 0.2 gram wetting agent, 0.4 gram flow agent, and 2.75 gram solvents join successively in the stirring tank, under the 600r/min speed conditions, stirred 7 minutes;
(2) add 31.5 gram mill bases, 22.5 gram fillers, 0.85 gram anti-settling agent, under the 1000r/min speed conditions, high-speed stirring was disperseed 35 minutes;
(3) add 4 gram aminoresin, 9.75 gram adhesion promoters, 1.75 gram solvents at last, under the 500r/min speed conditions, stirred 25 minutes, can finish the preparation process of whole enamel polyester paint.The using method of the enamel polyester paint that the magnalium base material that utilizes present embodiment to prepare is used is: take by weighing the enamel polyester paint that the magnalium base material is used, in joining the lacquer ratio: enamel polyester paint: thinner=1:0.5(is in parts by weight) stir after, be sprayed on the magnalium base material, placed 15 minutes, toasted 25 minutes under 160 ℃ of conditions at last, baking-curing obtains the enamel polyester paint coating.
Above-mentioned polyester modification acrylic resin solids content is 60+2%, and acid number is 1 ~ 2mg/g, and the aminoresin solids content is 80+2%; Described mill base is the mill base that is ground by the polyester modification acrylic resin, and filler is a talcum powder, and solvent comprises 3% fourth fat and 3% diacetone alcohol; Defoamer is non-silicon class special polymer, model is EFKA2720, dispersion agent is the high molecular weight block copolymer that contains affine pigment group, model is BYK163, wetting agent is the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight, model is X-401, flow agent is a fluorin modified crylic acid fat flow agent, model is EFKA3777, anti-settling agent is a polyamine wax anti-settling agent, model is 6900-20HV, and it is that the phosphatization compound model of main chain is 1008 and 6% to contain the polymkeric substance 1003 of completing basic functional group that adhesion promoter comprises 5% polyester.
Embodiment 7
The method steps of the baking vanish that preparation magnalium base material is used is as follows:
(1) with 16 gram polyester modification acrylic resins, 9.2 gram Resins, epoxy, 0.42 gram defoamer, 0.42 gram dispersion agent, 0.22 gram wetting agent, 0.42 gram flow agent, and 2.9 gram solvents join in the stirring tank successively, under the 640r/min speed conditions, stirred 7 minutes;
(2) add 32.2 gram mill bases, 23 gram fillers, 0.92 gram anti-settling agent, under the 1040r/min speed conditions, high-speed stirring was disperseed 36 minutes;
(3) add 4.2 gram aminoresin, 10 gram adhesion promoters, 1.9 gram solvents at last, under the 520r/min speed conditions, stirred 26 minutes, can finish the preparation process of whole enamel polyester paint.The using method of the enamel polyester paint that the magnalium base material that utilizes present embodiment to prepare is used is: take by weighing the enamel polyester paint that the magnalium base material is used, in joining the lacquer ratio: enamel polyester paint: thinner=1:0.5(is in parts by weight) stir after, be sprayed on the magnalium base material, placed 16 minutes, toasted 26 minutes under 162 ℃ of conditions at last, baking-curing obtains the enamel polyester paint coating.
Above-mentioned polyester modification acrylic resin solids content is 60+2%, and acid number is 1 ~ 2mg/g, and the aminoresin solids content is 80+2%; Described mill base is the mill base that is ground by the polyester modification acrylic resin, and filler is a talcum powder, and solvent comprises 3% fourth fat and 3% diacetone alcohol; Defoamer is non-silicon class special polymer, model is EFKA2720, dispersion agent is the high molecular weight block copolymer that contains affine pigment group, model is BYK163, wetting agent is the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight, model is X-401, flow agent is a fluorin modified crylic acid fat flow agent, model is EFKA3777, anti-settling agent is a polyamine wax anti-settling agent, model is 6900-20HV, and it is that the phosphatization compound model of main chain is 1008 and 6% to contain the polymkeric substance 1003 of completing basic functional group that adhesion promoter comprises 5% polyester.
Embodiment 8
The method steps of the baking vanish that preparation magnalium base material is used is as follows:
(1) with 17 gram polyester modification acrylic resins, 9.4 gram Resins, epoxy, 0.44 gram defoamer, 0.44 gram dispersion agent, 0.24 gram wetting agent, 0.44 gram flow agent, and 3.05 gram solvents join in the stirring tank successively, under the 680r/min speed conditions, stirred 8 minutes;
(2) add 32.9 gram mill bases, 23.5 gram fillers, 0.99 gram anti-settling agent, under the 1080r/min speed conditions, high-speed stirring was disperseed 37 minutes;
(3) add 4.4 gram aminoresin, 10.25 gram adhesion promoters, 2.05 gram solvents at last, under the 540r/min speed conditions, stirred 27 minutes, can finish the preparation process of whole enamel polyester paint.The using method of the enamel polyester paint that the magnalium base material that utilizes present embodiment to prepare is used is: take by weighing the enamel polyester paint that the magnalium base material is used, in joining the lacquer ratio: enamel polyester paint: thinner=1:0.5(is in parts by weight) stir after, be sprayed on the magnalium base material, placed 17 minutes, toasted 27 minutes under 164 ℃ of conditions at last, baking-curing obtains the enamel polyester paint coating.
Above-mentioned polyester modification acrylic resin solids content is 60+2%, and acid number is 1 ~ 2mg/g, and the aminoresin solids content is 80+2%; Described mill base is the mill base that is ground by the polyester modification acrylic resin, and filler is a talcum powder, and solvent comprises 3% fourth fat and 3% diacetone alcohol; Defoamer is non-silicon class special polymer, model is EFKA2720, dispersion agent is the high molecular weight block copolymer that contains affine pigment group, model is BYK163, wetting agent is the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight, model is X-401, flow agent is a fluorin modified crylic acid fat flow agent, model is EFKA3777, anti-settling agent is a polyamine wax anti-settling agent, model is 6900-20HV, and it is that the phosphatization compound model of main chain is 1008 and 6% to contain the polymkeric substance 1003 of completing basic functional group that adhesion promoter comprises 5% polyester.
Embodiment 9
The method steps of the baking vanish that preparation magnalium base material is used is as follows:
(1) with 18 gram polyester modification acrylic resins, 9.6 gram Resins, epoxy, 0.46 gram defoamer, 0.46 gram dispersion agent, 0.26 gram wetting agent, 0.46 gram flow agent, and 3.2 gram solvents join in the stirring tank successively, under the 720r/min speed conditions, stirred 8 minutes;
(2) add 33.6 gram mill bases, 24 gram fillers, 1.06 gram anti-settling agents, under the 1120r/min speed conditions, high-speed stirring was disperseed 38 minutes;
(3) add 4.6 gram aminoresin, 10.5 gram adhesion promoters, 2.2 gram solvents at last, under the 560r/min speed conditions, stirred 28 minutes, can finish the preparation process of whole enamel polyester paint.The using method of the enamel polyester paint that the magnalium base material that utilizes present embodiment to prepare is used is: take by weighing the enamel polyester paint that the magnalium base material is used, in joining the lacquer ratio: enamel polyester paint: thinner=1:0.6(is in parts by weight) stir after, be sprayed on the magnalium base material, placed 18 minutes, toasted 28 minutes under 166 ℃ of conditions at last, baking-curing obtains the enamel polyester paint coating.
Above-mentioned polyester modification acrylic resin solids content is 60+2%, and acid number is 1 ~ 2mg/g, and the aminoresin solids content is 80+2%; Described mill base is the mill base that is ground by the polyester modification acrylic resin, and filler is a talcum powder, and solvent comprises 3% fourth fat and 3% diacetone alcohol; Defoamer is non-silicon class special polymer, model is EFKA2720, dispersion agent is the high molecular weight block copolymer that contains affine pigment group, model is BYK163, wetting agent is the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight, model is X-401, flow agent is a fluorin modified crylic acid fat flow agent, model is EFKA3777, anti-settling agent is a polyamine wax anti-settling agent, model is 6900-20HV, and it is that the phosphatization compound model of main chain is 1008 and 6% to contain the polymkeric substance 1003 of completing basic functional group that adhesion promoter comprises 5% polyester.
Embodiment 10
The method steps of the baking vanish that preparation magnalium base material is used is as follows:
(1) with 20 gram polyester modification acrylic resins, 10 gram Resins, epoxy, 0.5 gram defoamer, 0.5 gram dispersion agent, 0.3 gram wetting agent, 0.5 gram flow agent, and 3.5 gram solvents join in the stirring tank successively, under the 800r/min speed conditions, stirred 10 minutes;
(2) add 35 gram mill bases, 25 gram fillers, 1.2 gram anti-settling agents, under the 1200r/min speed conditions, high-speed stirring was disperseed 40 minutes;
(3) add 5 gram aminoresin, 11 gram adhesion promoters, 2.5 gram solvents at last, under the 600r/min speed conditions, stirred 30 minutes, can finish the preparation process of whole enamel polyester paint.The using method of the enamel polyester paint that the magnalium base material that utilizes present embodiment to prepare is used is: take by weighing the enamel polyester paint that the magnalium base material is used, in joining the lacquer ratio: enamel polyester paint: thinner=1:0.6(is in parts by weight) stir after, be sprayed on the magnalium base material, placed 20 minutes, toasted 30 minutes under 170 ℃ of conditions at last, baking-curing obtains the enamel polyester paint coating.
Above-mentioned polyester modification acrylic resin solids content is 60+2%, and acid number is 1 ~ 2mg/g, and the aminoresin solids content is 80+2%; Described mill base is the mill base that is ground by the polyester modification acrylic resin, and filler is a talcum powder, and solvent comprises 3% fourth fat and 3% diacetone alcohol; Defoamer is non-silicon class special polymer, model is EFKA2720, dispersion agent is the high molecular weight block copolymer that contains affine pigment group, model is BYK163, wetting agent is the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight, model is X-401, flow agent is a fluorin modified crylic acid fat flow agent, model is EFKA3777, anti-settling agent is a polyamine wax anti-settling agent, model is 6900-20HV, and it is that the phosphatization compound model of main chain is 1008 and 6% to contain the polymkeric substance 1003 of completing basic functional group that adhesion promoter comprises 5% polyester.
Table 1 installs to the test result that forms on the magnalium after filming for the enamel polyester paint of the foregoing description is coated with.
Table 1
Can draw from above-mentioned experimental result when enamel polyester paint coated the magnalium base material, can to form sticking power and be 1 grade, snappiness be 1mm, have strong solidity to corrosion, good ornamental complete filming.
To sum up embodiment 1 ~ 10, because the magnalium base material is not needed to carry out pre-treatment, directly spraying baking vanish of the present invention just can obtain the coating of high tack, strong solidity to corrosion and aesthetic appearances, therefore, because construction technology is simple, reduced pretreatment technology, material resources that time and manpower is saved, thus reduced cost; The present invention is not because following reason need be carried out pre-treatment: (1) is because the corrosion product of magnesium alloy is alkalescence; the present invention has adopted the most alkali proof Resins, epoxy that adapts with body series; (2) the present invention has adopted a kind of adhesion promoter; it is to contain the polymkeric substance of completing basic functional group; can at high temperature react with the hydroxyl in the resin; and formation hinge polyester coating; thereby effectively improve adhesive force of coatings; (3) to have adopted a kind of be that the phosphate compound of main chain is as adhesion promoter with the polyester in the present invention; its bound phosphate groups that is rich in can interact with the metal ion that corrosion reaction generates and form phosphate coating based on trimagnesium phosphate at surface of magnesium aluminium alloy, thereby effectively improves adhesive force of coatings.
Claims (10)
1. baking vanish that the magnalium base material is used is characterized in that: in parts by weight, prescription comprises following component:
10 ~ 20 parts of polyester modification acrylic resins
28 ~ 35 parts of mill bases
20 ~ 25 parts of part fillers
3 ~ 5 parts in aminoresin
8 ~ 10 parts of Resins, epoxy
3 ~ 6 parts of solvents
0.3 ~ 0.5 part of dispersion agent
0.1 ~ 0.3 part of wetting agent
0.3 ~ 0.5 part of flow agent
0.3 ~ 0.5 part of defoamer
0.5 ~ 1.2 part of anti-settling agent
8.5 ~ 11 parts of adhesion promoters.
2. the baking vanish that magnalium base material according to claim 1 is used is characterized in that: described polyester modification acrylic resin solids content is 60+2%, and acid number is 1 ~ 2mg/g, and the aminoresin solids content is 80+2%.
3. the baking vanish that magnalium base material according to claim 1 is used is characterized in that: the mill base of described mill base for grinding by the polyester modification acrylic resin, and filler is a talcum powder, solvent comprises 3% fourth fat and 3% diacetone alcohol.
4. the baking vanish that magnalium base material according to claim 1 is used, it is characterized in that: described defoamer is non-silicon class special polymer, dispersion agent is the high molecular weight block copolymer that contains affine pigment group, wetting agent is the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight, flow agent is a fluorin modified crylic acid fat flow agent, anti-settling agent is a polyamine wax anti-settling agent, and adhesion promoter comprises the phosphatization compound type and 6% that 5% polyester is a main chain and contains the polymkeric substance of completing basic functional group.
5. the preparation method of the baking vanish used of a magnalium base material as claimed in claim 1 is characterized in that: may further comprise the steps:
(1) polyester modification acrylic resin, Resins, epoxy, defoamer, dispersion agent, wetting agent, flow agent and partial solvent are joined in the stirring tank successively, under 400 ~ 800r/min speed conditions, stirred 5 ~ 10 minutes;
(2) add mill base, anti-settling agent, filler, under 800 ~ 1200r/min speed conditions, high-speed stirring was disperseed 30 ~ 40 minutes;
(3) add aminoresin, adhesion promoter, solvent at last, under 400 ~ 600r/min speed conditions, stirred 20 ~ 30 minutes, can finish the preparation process of whole baking vanish.
6. the preparation method of the baking vanish that magnalium base material according to claim 5 is used is characterized in that: described polyester modification acrylic resin solids content is 60+2%, and acid number is 1 ~ 2mg/g, and the aminoresin solids content is 80+2%.
7. the preparation method of the baking vanish that magnalium base material according to claim 5 is used is characterized in that: the mill base of described mill base for grinding by the polyester modification acrylic resin, and filler is a talcum powder, solvent comprises 3% fourth fat and 3% diacetone alcohol.
8. the preparation method of the baking vanish that magnalium base material according to claim 5 is used, it is characterized in that: described defoamer is non-silicon class special polymer, dispersion agent is the high molecular weight block copolymer that contains affine pigment group, wetting agent is the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight, flow agent is a fluorin modified crylic acid fat flow agent, anti-settling agent is a polyamine wax anti-settling agent, and adhesion promoter comprises the phosphatization compound type and 6% that 5% polyester is a main chain and contains the polymkeric substance of completing basic functional group.
9. the using method of the baking vanish used of a magnalium base material as claimed in claim 1, take by weighing the baking vanish that the magnalium base material is used, in joining the lacquer ratio: baking vanish: thinner=1:0.4 ~ 0.6(is in parts by weight) stir after, be sprayed on the magnalium base material, placed then 10 ~ 20 minutes, toasted 20 ~ 30 minutes under 150 ℃ ~ 170 ℃ conditions at last, baking-curing obtains the baking vanish coating.
10. the using method of the baking vanish that magnalium base material according to claim 9 is used is characterized in that: described polyester modification acrylic resin solids content is 60+2%, and acid number is 1 ~ 2mg/g, and the aminoresin solids content is 80+2%; Described mill base is the mill base that is ground by the polyester modification acrylic resin, and filler is a talcum powder, and solvent comprises 3% fourth fat and 3% diacetone alcohol; Defoamer is non-silicon class special polymer, dispersion agent is the high molecular weight block copolymer that contains affine pigment group, wetting agent is the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight, flow agent is a fluorin modified crylic acid fat flow agent, anti-settling agent is a polyamine wax anti-settling agent, and adhesion promoter comprises the phosphatization compound type and 6% that 5% polyester is a main chain and contains the polymkeric substance of completing basic functional group.
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