Smokeless coating
[technical field]
The invention belongs to painting field, be specifically related to a kind of after baking-curing for air-conditioner foil fin provides the smokeless coating of corrosion protection coating.
[background technology]
In correlation technique, the primer base producing air-conditioner foil coiled material adopts aminoresin as solidifying agent.The deficiency of this technical scheme is: the deblocking temperature of aminoresin is higher, need solidify under the high temperature conditions, energy consumption is higher, simultaneously high bake also can produce series of problems: 1, high bake makes the solidifying agent of the non-complete reaction of part escape out from coating and the at high temperature a large amount of smog of partially carbonized generation, the tar that smog condenses into easily is accumulated on flue wall, there is the hidden danger of spontaneous combustion; 2, the discharge of smog causes severe contamination to environment; 3, high bake condition not only causes work situation severe, and ageing equipment is accelerated.In correlation technique, patent 201010164756.5 adopts part methyl-etherified aminoresin, non-methyl-etherified aminoresin and benzene for aminoresin as mixed curing agent, although obtain good film performance, but its solidifying agent addition reaches more than 8%, produce a large amount of smog during hot setting, to coating workshop and environmental pollution larger.Patent 200530033137.8 adopt aqueous acrylic modified epoxy resin, water-based saturated polyester and a small amount of silane-modified ACRYLIC EMULSION as film forming matter and use isocyanic ester and aminoresin as solidifying agent, gained coating is better at base material sticking power, but because Silane Grafted amount is few, little to the degree of crosslinking contribution of polymkeric substance, curing dose used is still higher, and coating smog is still larger.
Therefore, be necessary to provide a kind of smokeless coating newly to solve the problems of the technologies described above in fact.
[summary of the invention]
The technical issues that need to address of the present invention be to provide a kind of few use or without amino resin curing agents condition under can realize coating curing time do not produce smog and coating has excellent anticorrosion and smokeless coating that wear resisting property is good.
A kind of smokeless coating of the present invention, comprises smokeless coating and is made up of following component, be by weight percentage:
The silane-modified Self-crosslinking acrylic emulsion 60% ~ 70% of high molecular;
Neutralizing agent 0.5% ~ 1%;
Amino resin curing agents 0% ~ 3%;
Solvent 1-5%;
Wetting agent 0.01% ~ 0.1%;
Dead front type an acidic catalyst 0% ~ 0.3%;
Water: surplus.
Preferably, described neutralizing agent is one in ammoniacal liquor, N, N-dimethylethanolamine, 2-methyl-2 aminopropanol or mixture; Described amino resin curing agents is that hexa methoxy etherified amino resins, tetramethoxy etherified amino resins, butylated amino resin, benzene are for the mixture of one or more in aminoresin; Described solvent is at least one in propyl carbinol, Virahol, propylene glycol monomethyl ether, 1-Methoxy-2-propyl acetate, butyl glycol ether.
Preferably, the silane-modified Self-crosslinking acrylic emulsion of described high molecular has following component to form, and is by weight percentage:
Mix monomer 25% ~ 40%;
Emulsifying agent 0.5% ~ 1%;
Initiator 0.1% ~ 0.2%;
Water: surplus.
Preferably, described mix monomer is made up of following composition:
Acrylic monomer 65% ~ 75%;
Vinyl monomer 20% ~ 30%;
Cross-linking monomer 1 ~ 5%;
Vinylic organosiloxane 4 ~ 10%;
Described acrylic monomer is one or more the mixture in methacrylic acid, hydroxyethyl methylacrylate, Rocryl 410, methacrylate, methyl methacrylate, butyl acrylate, (methyl) Isooctyl acrylate monomer, glycidyl methacrylate;
Described is one or more mixture in vinyl monomer vinylbenzene, Vinyl toluene, vinyl acetate, tertiary ethylene carbonate.
Described cross-linking monomer is one or more the mixture in N hydroxymethyl acrylamide, diacetone-acryloamide(DAA), acrylamide, Ethylene glycol dimethacrylate, trimethylolpropane trimethacrylate, trimethylolpropane allyl ether.
Described vinylic organosiloxane is one or more the mixture in vinyl silane triisopropoxide, vinyltriethoxysilane, vinyl three (2-methoxy ethoxy) silane.
Preferably, described emulsifying agent is one or more mixtures in allyloxy hydroxypropyl azochlorosulfonate acid sodium, sodium lauryl sulphate, alkylphenol polyoxyethylene, alkylamide vinyl sulfonic acid sodium, allyloxy nonyl phenol propyl alcohol polyoxyethylene (10) ether ammonium sulfate.
Preferably, described initiator is at least one in ammonium persulphate, Potassium Persulphate.
Compared with correlation technique, beneficial effect of the present invention is: the present invention a kind of after baking-curing for air-conditioner foil fin provides the smokeless coating of corrosion protection coating.This coating is the water-borne coatings of self-crosslinking under a kind of molecular weight high and low temperature, few use or without amino resin curing agents condition under can realize coating curing time do not produce smog and coating has excellent anticorrosion and wear resisting property.
[embodiment]
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
The silane-modified Self-crosslinking acrylic emulsion of preparation 100g high molecular, its component and content thereof are:
The smokeless coating of preparation 100g, its component and content thereof are:
Component |
Content (g) |
The silane-modified Self-crosslinking acrylic emulsion of high molecular |
60 |
Neutralizing agent |
0.5 |
Amino resin curing agents |
0 |
Solvent |
1 |
Wetting agent |
0.01 |
Dead front type acid catalyst |
0 |
Water |
38.49 |
Neutralizing agent is the mixture in ammoniacal liquor, N, N-dimethylethanolamine, 2-methyl-2 aminopropanol; Amino resin curing agents is that hexa methoxy etherified amino resins, tetramethoxy etherified amino resins, butylated amino resin, benzene are for the mixture of aminoresin; Solvent is the mixture of propyl carbinol, Virahol, propylene glycol monomethyl ether, 1-Methoxy-2-propyl acetate, butyl glycol ether.
Embodiment 2
The silane-modified Self-crosslinking acrylic emulsion of preparation 100g high molecular, its component and content thereof are:
The smokeless coating of preparation 100g, its component and content thereof are:
Component |
Content (g) |
The silane-modified Self-crosslinking acrylic emulsion of high molecular |
70 |
Neutralizing agent |
1 |
Amino resin curing agents |
3 |
Solvent |
5 |
Wetting agent |
0.1 |
Dead front type acid catalyst |
0.3 |
Water |
20.6 |
Neutralizing agent is ammoniacal liquor; Amino resin curing agents is hexa methoxy etherified amino resins; Solvent is propyl carbinol.
Embodiment 3
The silane-modified Self-crosslinking acrylic emulsion of preparation 100g high molecular, its component and content thereof are:
The smokeless coating of preparation 100g, its component and content thereof are:
Component |
Content (g) |
The silane-modified Self-crosslinking acrylic emulsion of high molecular |
65 |
Neutralizing agent |
0.8 |
Amino resin curing agents |
2 |
Solvent |
3 |
Wetting agent |
0.01 |
Dead front type acid catalyst |
0.15 |
Water |
29.04 |
Neutralizing agent N, N-dimethylethanolamine; Amino resin curing agents is tetramethoxy etherified amino resins; Solvent is Virahol.
Embodiment 4
The silane-modified Self-crosslinking acrylic emulsion of preparation 100g high molecular, its component and content thereof are:
The smokeless coating of preparation 100g, its component and content thereof are:
Component |
Content (g) |
The silane-modified Self-crosslinking acrylic emulsion of high molecular |
60 |
Neutralizing agent |
0.5 |
Amino resin curing agents |
2 |
Solvent |
3 |
Wetting agent |
0.01 |
Dead front type acid catalyst |
0.3 |
Water |
34.19 |
Neutralizing agent is 2-methyl-2 aminopropanol; Butylated amino resin; Solvent is propylene glycol monomethyl ether.Embodiment 5
The silane-modified Self-crosslinking acrylic emulsion of preparation 100g high molecular, its component and content thereof are:
Component |
Content (g) |
Methacrylic acid |
1.2 |
Hydroxyethyl methylacrylate |
3 |
Rocryl 410 |
1.5 |
Methacrylate |
4.5 |
Methyl methacrylate |
3.9 |
Butyl acrylate |
5.4 |
Vinylbenzene |
4.5 |
Tertiary ethylene carbonate |
1.5 |
N hydroxymethyl acrylamide |
0.6 |
Trimethylolpropane trimethacrylate |
0.9 |
Vinyl silane triisopropoxide |
0.9 |
Vinyl three (2-methoxy ethoxy) silane |
2.1 |
Allyloxy hydroxypropyl azochlorosulfonate acid sodium |
0.2 |
Sodium lauryl sulphate |
0.4 |
Ammonium persulphate |
0.2 |
Water |
69.2 |
The smokeless coating of preparation 100g, its component and content thereof are:
Component |
Content (g) |
The silane-modified Self-crosslinking acrylic emulsion of high molecular |
70 |
Neutralizing agent |
1 |
Amino resin curing agents |
1 |
Solvent |
3 |
Wetting agent |
0.01 |
Dead front type acid catalyst |
0.3 |
Water |
24.69 |
Neutralizing agent is the mixture of ammoniacal liquor, N, N-dimethylethanolamine; Amino resin curing agents is that benzene is for aminoresin; Solvent is 1-Methoxy-2-propyl acetate.
Embodiment 6
The silane-modified Self-crosslinking acrylic emulsion of preparation 100g high molecular, its component and content thereof are:
Component |
Content (g) |
Methacrylic acid |
1.5 |
Hydroxyethyl methylacrylate |
5.1 |
Rocryl 410 |
1.5 |
Methacrylate |
3 |
Methyl methacrylate |
3.9 |
Butyl acrylate |
4.5 |
Vinylbenzene |
3 |
Tertiary ethylene carbonate |
4.5 |
N hydroxymethyl acrylamide |
0.6 |
Trimethylolpropane trimethacrylate |
0.6 |
Vinyl silane triisopropoxide |
1.2 |
Vinyl three (2-methoxy ethoxy) silane |
0.6 |
Allyloxy hydroxypropyl azochlorosulfonate acid sodium |
0.2 |
Sodium lauryl sulphate |
0.4 |
Ammonium persulphate |
0.2 |
Water |
69.2 |
The smokeless coating of preparation 100g, its component and content thereof are:
Neutralizing agent is the mixture of N, N-dimethylethanolamine, 2-methyl-2 aminopropanol; Amino resin curing agents is that benzene is for aminoresin; Solvent is butyl glycol ether.
Embodiment 7
The silane-modified Self-crosslinking acrylic emulsion of preparation 100g high molecular, its component and content thereof are:
Component |
Content (g) |
Methacrylic acid |
1.6 |
Hydroxyethyl methylacrylate |
5.2 |
Rocryl 410 |
2 |
Methacrylate |
6 |
Methyl methacrylate |
4.8 |
Butyl acrylate |
8 |
Vinylbenzene |
6 |
Tertiary ethylene carbonate |
2 |
N hydroxymethyl acrylamide |
0.4 |
Trimethylolpropane trimethacrylate |
0 |
Vinyl silane triisopropoxide |
2.8 |
Vinyl three (2-methoxy ethoxy) silane |
1.2 |
Allyloxy hydroxypropyl azochlorosulfonate acid sodium |
0.2 |
Sodium lauryl sulphate |
0.4 |
Ammonium persulphate |
0.15 |
Water |
59.25 |
The smokeless coating of preparation 100g, its component and content thereof are:
Neutralizing agent is ammoniacal liquor; Amino resin curing agents is the mixture of hexa methoxy etherified amino resins, tetramethoxy etherified amino resins, butylated amino resin; Solvent is the mixture of propyl carbinol, Virahol, propylene glycol monomethyl ether, 1-Methoxy-2-propyl acetate.
Embodiment 8
The silane-modified Self-crosslinking acrylic emulsion of preparation 100g high molecular, its component and content thereof are:
Component |
Content (g) |
Methacrylic acid |
1.6 |
Hydroxyethyl methylacrylate |
5.2 |
Rocryl 410 |
4 |
Methacrylate |
4 |
Methyl methacrylate |
7.2 |
Butyl acrylate |
6 |
Vinylbenzene |
6 |
Tertiary ethylene carbonate |
2 |
N hydroxymethyl acrylamide |
0.8 |
Trimethylolpropane trimethacrylate |
0.8 |
Vinyl silane triisopropoxide |
1.6 |
Vinyl three (2-methoxy ethoxy) silane |
0.8 |
Allyloxy hydroxypropyl azochlorosulfonate acid sodium |
0.6 |
Sodium lauryl sulphate |
0.4 |
Ammonium persulphate |
0.2 |
Water |
58.8 |
The smokeless coating of preparation 100g, its component and content thereof are:
Neutralizing agent is N, N-dimethylethanolamine; Amino resin curing agents is the mixture of hexa methoxy etherified amino resins, tetramethoxy etherified amino resins; Solvent is the mixture of Virahol, propylene glycol monomethyl ether, 1-Methoxy-2-propyl acetate, butyl glycol ether.
Embodiment 9
The silane-modified Self-crosslinking acrylic emulsion of preparation 100g high molecular, its component and content thereof are:
Methacrylic acid |
1.6 |
Hydroxyethyl methylacrylate |
5.2 |
Rocryl 410 |
4 |
Methacrylate |
4 |
Methyl methacrylate |
5.2 |
Butyl acrylate |
10 |
Vinylbenzene |
6 |
Tertiary ethylene carbonate |
2 |
N hydroxymethyl acrylamide |
0.4 |
Trimethylolpropane trimethacrylate |
0 |
Vinyl silane triisopropoxide |
1.6 |
Vinyl three (2-methoxy ethoxy) silane |
0 |
Allyloxy hydroxypropyl azochlorosulfonate acid sodium |
0.2 |
Sodium lauryl sulphate |
0.4 |
Ammonium persulphate |
0.2 |
Water |
59.2 |
The smokeless coating of preparation 100g, its component and content thereof are:
Neutralizing agent is 2-methyl-2 aminopropanol; Amino resin curing agents is that butylated amino resin, benzene are for the mixture of aminoresin; Solvent is the mixture of Virahol, propylene glycol monomethyl ether, 1-Methoxy-2-propyl acetate.
Embodiment 10
The silane-modified Self-crosslinking acrylic emulsion of preparation 100g high molecular, its component and content thereof are:
Methacrylic acid |
2.4 |
Hydroxyethyl methylacrylate |
5.2 |
Rocryl 410 |
2 |
Methacrylate |
5.2 |
Methyl methacrylate |
7.2 |
Butyl acrylate |
6 |
Vinylbenzene |
6 |
Tertiary ethylene carbonate |
2 |
N hydroxymethyl acrylamide |
0.8 |
Trimethylolpropane trimethacrylate |
0.8 |
Vinyl silane triisopropoxide |
1.6 |
Vinyl three (2-methoxy ethoxy) silane |
0.8 |
Allyloxy hydroxypropyl azochlorosulfonate acid sodium |
0.6 |
Sodium lauryl sulphate |
0.4 |
Ammonium persulphate |
0.2 |
Water |
58.8 |
The smokeless coating of preparation 100g, its component and content thereof are:
Component |
Content (g) |
The silane-modified Self-crosslinking acrylic emulsion of high molecular |
65 |
Neutralizing agent |
0.8 |
Amino resin curing agents |
1 |
Solvent |
3 |
Wetting agent |
0.01 |
Dead front type acid catalyst |
0.15 |
Water |
30.04 |
Neutralizing agent is the mixture in ammoniacal liquor, N, N-dimethylethanolamine, 2-methyl-2 aminopropanol; Amino resin curing agents is that hexa methoxy etherified amino resins, tetramethoxy etherified amino resins, butylated amino resin, benzene are for the mixture of aminoresin; Solvent is the mixture of propyl carbinol, Virahol, propylene glycol monomethyl ether, 1-Methoxy-2-propyl acetate, butyl glycol ether.
By the smokeless coating of example 1-10 and commercial like product Performance comparision as follows:
Compared with commercial coating, cigarette is not produced when example that this patent provides toasts, improve tar and be accumulated in flue wall and environmental pollution problem and solidification value is starkly lower than commercial coating, baked at low temperatures can improve painting environment, and is conducive to the work-ing life extending coating curing equipment.
Compared with correlation technique, beneficial effect of the present invention is: the present invention a kind of after baking-curing for air-conditioner foil fin provides the smokeless coating of corrosion protection coating.This coating is the water-borne coatings of self-crosslinking under a kind of molecular weight high and low temperature, few use or without amino resin curing agents condition under can realize coating curing time do not produce smog and coating has excellent anticorrosion and wear resisting property.
Above-described is only embodiments of the present invention, it should be pointed out that for the person of ordinary skill of the art at this, without departing from the concept of the premise of the invention, can also make improvement, but these all belongs to protection scope of the present invention.