Summary of the invention
The object of the invention is to, the High-solid anticorrosive paint a kind of modified epoxy being provided and preparing with it.The modified epoxy that the present invention obtains is superior performance in water-fast, high-low temperature resistant, antiseptic property and sticking power etc.; The High-solid anticorrosive paint of what the present invention utilized above-mentioned modified epoxy to prepare be applicable to different low flyer ground, overcomes existing low flyer ground protective system and there is the defect that can not be applicable to different low flyer grounds.
Technical scheme of the present invention: modified epoxy, the weight proportion of feed composition is as follows, and consumption is weight part;
Epoxy resin 60 ~ 75 parts, perfluoroalkyl acrylate mix monomer 18 ~ 25 parts,
Vinylbenzene 12 ~ 20 parts;
Described perfluoroalkyl acrylate mix monomer comprises following component, in massfraction:
Methacrylic acid 25 ~ 40%, butyl acrylate 25 ~ 40%,
Hexafluorobutyl mathacrylate 25 ~ 40%.
In aforesaid modified epoxy, the weight proportion of feed composition is as follows:
Epoxy resin 65 ~ 70 parts, perfluoroalkyl acrylate mix monomer 20 ~ 22 parts,
Vinylbenzene 15 ~ 18 parts;
Described perfluoroalkyl acrylate mix monomer comprises following component, in massfraction:
Methacrylic acid 30 ~ 36%, butyl acrylate 30 ~ 36%,
Hexafluorobutyl mathacrylate 30 ~ 36%.
In aforesaid modified epoxy, described epoxy resin is E-44 epoxy resin; Described perfluoroalkyl acrylate mix monomer by mass ratio be the methacrylic acid of 1:1:1, butyl acrylate and Hexafluorobutyl mathacrylate form.
Prepare the method for aforesaid modified epoxy, it is: heating E-44 epoxy resin is to 105 ~ 115 DEG C, under agitation drip perfluoroalkyl acrylate mix monomer, after insulation reaction 3 ~ 4h, survey acid number, when acid number is less than 5mgKOH/g, be cooled to about 7O DEG C, add vinylbenzene to dilute, stir evenly rear cooling discharge, obtain modified epoxy.
By High-solid anticorrosive paint prepared by aforesaid modified epoxy, it is made up of component A and B component, and the quality proportioning of component A and B component is 100:20 ~ 40;
Component A presses the raw material preparation of row weight proportion:
Modified epoxy 16 ~ 20 parts, 601-75 epoxy resin 10 ~ 13 parts,
Pigment 24 ~ 30 parts, anti-settling agent 0.1 ~ 0.3 part,
Flow agent 0.05 ~ 0.15 part, filler 8 ~ 10 parts,
Matting agent 3 ~ 4 parts, rust-preventive agent 4 ~ 6 parts,
Defoamer 0.1 ~ 0.2 part, butyl glycol ether 1 ~ 1.5 part,
Toluene 3 ~ 4 parts, dimethylbenzene 18 ~ 21 parts;
B component presses the raw material preparation of row weight proportion:
60 ~ 66 parts, solidifying agent, toluene 19 ~ 22 parts,
Propyl carbinol 4 ~ 6 parts, butyl glycol ether 0.5 ~ 1.5 part,
Dimethylbenzene 4 ~ 6 parts, siccative 2 ~ 4 parts.
In aforesaid High-solid anticorrosive paint, the quality proportioning of component A and B component is 100:25 ~ 35.
In aforesaid High-solid anticorrosive paint, the quality proportioning of component A and B component is 100:33.
In aforesaid High-solid anticorrosive paint, described pigment is made up of titanium dioxide; Described anti-settling agent is wilkinite; Described filler is made up of talcum powder and barium sulfate; Described matting agent is flatting silica.
In aforesaid High-solid anticorrosive paint, described pigment is made up of by the mass ratio of 1:0.8 ~ 1.2 titanium dioxide TR-33 and R902+ titanium dioxide; Described anti-settling agent is wilkinite 938; Described flow agent is MAA flow agent; Described filler is made up of 1:0.8 ~ 1.2 in mass ratio superfine talcum powder CMS-666 and barium sulfate; Described matting agent is C906 flatting silica; Described rust-preventive agent is phosphorus zinc chromate; Described defoamer is 5400 defoamers; Described solidifying agent is solidifying agent 2015; Described siccative is siccative T-30.
Prepare the method for aforesaid High-solid anticorrosive paint, it is characterized in that, it comprises following three steps:
A, first modified epoxy, 601-75 epoxy resin and dimethylbenzene to be mixed, under agitation slowly add anti-settling agent, high speed dispersion is about 5min to homogeneous, under agitation adds pigment and defoamer, stir 15min, then add filler, stir 15min, more under agitation add matting agent, flow agent, rust-preventive agent, butyl glycol ether and toluene, stir 20min, grind with sand milling after being uniformly dispersed and be less than 40 μm to fineness, cross and filter abrasive sand, filter and package and obtain component A;
B, by solidifying agent, toluene, propyl carbinol, butyl glycol ether, dimethylbenzene and siccative mix, stir 20min, be uniformly dispersed, filter and package and obtain B component;
C, by component A and B component mixing, after stirring, namely obtain High-solid anticorrosive paint.
Compared with prior art, the present invention is by adopting new component and proportioning, obtained modified epoxy reaches following technical indicator: pale yellow transparent thick liquid, acid number 4.6mgKOH/g, oxirane value 0.03 equivalent/l00g, viscosity (when 25 ° of C) is 0.245Pas, superior performance in water-fast, resistance to acids and bases, high-low temperature resistant, antiseptic property and sticking power etc.The High-solid anticorrosive paint that the present invention adopts above-mentioned modified epoxy and new proportioning to make, test-results shows, superior performance in water-fast, resistance to acids and bases, high-low temperature resistant, antiseptic property and sticking power etc., can be used for the low flyer ground that aluminium alloy, titanium alloy, magnesium alloy and matrix material etc. are different.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated, but not as the foundation limited the present invention.
Embodiment.
Prepare modified epoxy in the steps below:
A, methacrylic acid, butyl acrylate and the Hexafluorobutyl mathacrylate mass ratio by 1:1:1 to be mixed, obtained perfluoroalkyl acrylate mix monomer.
B, get 67.65 parts of E-44 epoxy resin, heat to 110 DEG C, under agitation drip 21.18 parts of perfluoroalkyl acrylate mix monomers, after insulation reaction 4h, survey acid number, when acid number is less than 5mgKOH/g, be cooled to 7O DEG C, add 16.47 parts of vinylbenzene to dilute, stir evenly rear cooling discharge, obtained modified epoxy.
The performance index of obtained modified epoxy are as follows: outward appearance pale yellow transparent thick liquid, acid number is 4.6mgKOH/g, and oxirane value is 0.03 equivalent/l00g, and viscosity (when 25 ° of C) is 0.245Pas.
Follow these steps to prepare High-solid anticorrosive paint:
A, first get 18.2 parts of modified epoxies, the 601-75 epoxy resin of 11.29 parts and 19.45 parts of dimethylbenzene, after mixing, under agitation slowly add 0.2 part of wilkinite 938, high speed dispersion is about 5min to homogeneous, under agitation adds 14.88 parts of TR-33 titanium dioxides, 14.88 parts of R902
+titanium dioxide and 0.13 part of 5400 defoamer, stir 15min, then 4.92 parts of talcum powder 666 and 4.99 parts of barium sulfate are added, stir 15min, under agitation add 3.46 parts of C906 flatting silicas, 0.09 part of MAA flow agent, 4.99 parts of phosphorus zinc chromates, 1.32 parts of butyl glycol ethers and 3.29 parts of toluene again, stir 20min, grind to fineness with sand milling after being uniformly dispersed and be less than 40 μm, cross and filter abrasive sand, filter and package and obtain component A.
B, get 64.09 parts of solidifying agent, 2015,21.12 parts of toluene, 5.92 parts of propyl carbinols, 0.99 part of butyl glycol ether, 4.93 parts of dimethylbenzene and 2.96 parts of siccative T-30, after mixing, stir 20min, be uniformly dispersed, filter and package and obtain B component.
C, get component A and B component that mass ratio is 100:33, after mixing, stir, obtained High-solid anticorrosive paint.
Above-mentioned 601-75 epoxy resin and E-44 epoxy resin are that Sanmu Group Co., Ltd., Jiangsu produces.
Above-mentioned titanium dioxide TR-33 is that Dongguan City Shuan Li titanium dioxide company limited produces.
Above-mentioned R902+ titanium dioxide Shanghai Xiang Tai Chemical Co., Ltd. produces.
Above-mentioned wilkinite 938 is that Xiamen Ai Kema industrial chemicals company limited produces.
Above-mentioned MAA flow agent is that prosperous titanium digests (China) production.
Above-mentioned superfine talcum powder CMS-666 is that Heshan chemical industry (Liaoning) company limited produces.
Above-mentioned barium sulfate be Shanghai jump river titanium white heavy chemicals company limited produce.
Above-mentioned C906 flatting silica is that Shanghai Xin Xin Industry Co., Ltd produces.
Above-mentioned phosphorus zinc chromate is that Lanxi City Xin Rong chemical metallization company limited produces.
Above-mentioned 5400 defoamers are that upper sea cowry reaches the production of wrapping material company limited.
Above-mentioned 2015 solidifying agent are that Shanghai Yao Shan Chemical Co., Ltd. produces.
Above-mentioned siccative T-30 is that Shanghai hundred mattress Chemical Co., Ltd. produces.
Above-mentioned obtained High-solid anticorrosive paint is carried out on aluminium alloy, titanium alloy, magnesium alloy and matrix material examination to be coated with, coating performance is as shown in the table.
Above-mentioned testing data shows: the High-solid anticorrosive paint that the present invention obtains is superior performance in water-fast, high-low temperature resistant, antiseptic property and sticking power etc., can be used for different low flyer grounds.
The generality of the above-mentioned invention to relating in the application describes and the description of its embodiment be should not be understood as to the restriction formed this invention technical scheme.Those skilled in the art's disclosing according to the application, can under the prerequisite without prejudice to involved invention integrant, above-mentioned generality is described or/and the public technology feature in embodiment (comprising embodiment) increases, reduces or combines, forms other the technical scheme belonging to described invention.