A kind of novel, environmental protection macromolecule potteryization liquid and its preparation method
Technical field
The present invention relates to the formula of a kind of vitrified agent, particularly such vitrified agent that carry out potteryization process for metallic surface and preparation method.
Background technology
Iron and steel usually needs to carry out pre-treatment before carrying out application; comprise the technique such as oil removing, rust cleaning; chemical pre-processing method usually also will at surface formation one layer of chemical conversion film of iron and steel; the existing certain antiseptic power of this conversion film; rust is returned in the time that part can be avoided of short duration before spraying; the roughness of piece surface can also be increased, strengthen the bonding force of coating and substrate. What major part adopted at present is phosphating process, and its phosphorization agent added can form one layer of phosphatize phosphate coat in metallic surface. P contained compound conventional in phosphorization agent mostly is phosphoric acid, such as Chinese patent CN1422980A, CN1434150A, CN1401820A, CN1043962A, CN1144278A etc. In these phosphatization liquid, main component (P contained compound) can cause the eutrophication of water, and environment has bigger harm, and therefore its discharge brings very big problem, if directly discharged, will serious environment pollution, organism in water and human lives are produced significant damage. Along with environmental protection constantly advances, novel non-phosphate conversion film (potteryization film) is quietly replacing traditional phosphatize phosphate coat. Novel ceramic liquid is mainly divided into the phosphate-free metal surface treatment agents such as zirconium system, zirconium titanium system, silane system, silane zirconium system, can Some substitute phosphatization liquid. Its main raw material is fluozirconate, silane coupling agent etc. This new conversion film is by amorphous state ZrO
2
Composition, its nano coating formed replaces traditional crystal type phosphatization protective layer, and has good sticking power between metallic surface and paint coating subsequently, fine corrosion resistance. Novel ceramic liquid meets the application requirement of industrialization substantially, but due to formed coating be inorganic nano material, more weak with the bonding force of metallic surface. Therefore, the space being still improved in the bonding force of Novel ceramic liquid in metallic surface, surface filming performance etc.
Summary of the invention
The present invention seeks to the film-forming properties in order to improve potteryization liquid, the bonding force strengthened between coating and metal. Thering is provided a kind of technique simple, potteryization film is fine and close, favorable rust preventing effect, the environment-friendly type potteryization liquid that film-forming properties is strong and its preparation method.
For achieving the above object, the technical solution used in the present invention is:
A kind of novel, polymer potteryization liquid, it forms by following raw material composite and become: titanium zirconium compounds 10-20 part, fluorochemical 2-5 part, aqueous high molecular resin 3-10 part, zirconyl chloride (titanium) 1-5 part, organic acid 2-5 part, surface active agent 0-2 part, water 55-75 part.
The present invention also provides a kind of method preparing above-mentioned pottery liquid, and its step is as follows:
One, various raw material is taken in proportion;
Two, in its 2/3 water requirement, add the titanium zirconium compounds taken, it is stirred to dissolving;
Three, in the solution that step 2 is obtained, add fluorochemical and it is stirred to dissolving;
Four, in the solution that step 3 is obtained, aqueous high molecular resin agitating is added to dissolving;
Five, in the solution that step 4 is obtained, zirconyl chloride (titanium) is added to dissolving;
Six, in the solution that step 5 is obtained, add small molecular organic acid, it is stirred to dissolving;
Seven, in the solution that step 6 is obtained, add surface active agent, it is stirred to dissolving;
Eight, in the solution that step 5 is obtained, add the remaining water yield, it is stirred to and is uniformly dissolved.
Owing to technique scheme is used, the present invention compared with prior art has following advantage: the pottery liquid good stability prepared by this technique, and the pottery layer formed on the surface of iron and steel, zinc and aluminium is more even; Stronger with the binding ability of material surface, the not environmental pollutant such as phosphoric acid salt, environmental protection more. Pottery liquid prepared by this technical scheme is applicable to normal temperature spray and drenches and immersion treatment, and technique is simple, is easy to operation, and cost is lower, is suitable for applying.
Embodiment
A kind of potteryization liquid, its quality group becomes: titanium zirconium compounds 10-20 part, fluorochemical 2-5 part, aqueous high molecular resin 3-10 part, zirconyl chloride (titanium) 1-5 part, small molecular organic acid 2-5 part, water 55-75 part.
The best composition (massfraction) of this pottery liquid is: titanium zirconium compounds 12-16 part, fluorochemical 3-4 part, aqueous high molecular resin 3-5 part, zirconyl chloride (titanium) 1-3 part, small molecular organic acid 3-4 part, nonionogenic tenside 0.1-0.5 part, water 65-75 part. The titanium zirconium compounds that the present invention uses can be: the one in potassium fluozirconate, sodium fluozirconate, fluorine zirconic acid, potassium fluotitanate, titanium sodium fluoride, hydrofluotitanic acid etc., or multiple; Fluorochemical can be one or more in hydrofluoric acid, Sodium Fluoride, Potassium monofluoride, Neutral ammonium fluoride etc.; Aqueous high molecular resin can be: one or more in the multipolymer of vinylformic acid and maleic anhydride, the multipolymer of vinylformic acid methylene-succinic acid, polyacrylic acid, sodium polyacrylate etc.; Small molecular organic acid can be one or more in formic acid, acetic acid, propionic acid, toxilic acid, vinylformic acid, methylene-succinic acid etc.; Surface active agent can be fatty alcohol-polyoxyethylene ether, alkylphenol polyoxyethylene, sodium lauryl sulphate, sodium laurylsulfonate, pull open powder etc. in one or more.
The method preparing above-mentioned pottery liquid is as follows:
One, various raw material is taken in proportion;
Two, in its 2/3 water requirement, add the titanium zirconium compounds taken, it is stirred to dissolving;
Three, in the solution that step 2 is obtained, add fluorochemical and it is stirred to dissolving;
Four, in the solution that step 3 is obtained, aqueous high molecular resin agitating is added to dissolving;
Five, in the solution that step 4 is obtained, zirconyl chloride (titanium) is added to dissolving;
Six, in the solution that step 5 is obtained, add small molecular organic acid, it is stirred to dissolving;
Seven, in the solution that step 6 is obtained, add nonionogenic tenside, it is stirred to dissolving;
Eight, in the solution that step 5 is obtained, add the remaining water yield, it is stirred to and is uniformly dissolved.
For the ease of being familiar with the preparation of such potteryization liquid, now describe the present invention in conjunction with the embodiments:
Embodiment 1
A preparation method for pottery liquid, its step is as follows:
1) fluorine zirconic acid 7 parts is taken, sodium fluozirconate 9 parts, Potassium monofluoride 4 parts, polyacrylic acid 6 parts, zirconyl chloride 3 parts, 2 parts, formic acid, 1 part, vinylformic acid, ethoxylated dodecyl alcohol 0.2 part, 67.8 parts, water;
2) in 40 parts of water, add 7 parts of fluorine zirconic acids and it is stirred to abundant dissolving;
3) add 9 parts of sodium fluozirconates in step 2 and it is stirred to abundant dissolving;
4) add 4 parts of Potassium monofluorides in step 3 and it is stirred to abundant dissolving;
5) add 2 parts of formic acid in step 4,1 part of vinylformic acid be stirred to dissolving;
6) add 6 parts of polyacrylic acid in steps of 5 and it is stirred to abundant dissolving;
7) add 3 parts of zirconyl chlorides in step 6 and it is stirred to abundant dissolving;
8) ethoxylated dodecyl alcohol adding 0.2 part in step 7 is stirred to dissolving;
9) add 27.8 parts of water in step 8 to be stirred to and mix.
Embodiment 2
A preparation method for pottery liquid, its step is as follows:
1) hydrofluotitanic acid 5 parts is taken, potassium fluotitanate 10 parts, Sodium Fluoride 4 parts, polyacrylic acid 7 parts, zirconyl chloride 2 parts, acetic acid 3 parts, 69 parts, water;
2) in 40 parts of water, add 5 parts of hydrofluotitanic acids and it is stirred to abundant dissolving;
3) add 10 parts of potassium fluotitanates in step 2 and it is stirred to abundant dissolving;
4) add 4 parts of Sodium Fluorides in step 3 and it is stirred to abundant dissolving;
5) add 3 parts of acetic acid in step 4 and it is stirred to dissolving;
6) add 7 parts of polyacrylic acid in steps of 5 and it is stirred to abundant dissolving;
7) add 2 parts of zirconyl chlorides in step 6 and it is stirred to abundant dissolving;
8) add 29 parts of water in step 7 to be stirred to and mix.
Embodiment 3
A preparation method for pottery liquid, its step is as follows:
1) fluorine zirconic acid 12 parts is taken, Neutral ammonium fluoride 4 parts, the multipolymer of vinylformic acid methylene-succinic acid 6 parts, zirconyl chloride 3 parts, alkylphenol polyoxyethylene 0.2 part, 74.8 parts, water;
2) in 45 parts of water, add 12 parts of fluorine zirconic acids and it is stirred to abundant dissolving;
3) add 4 parts of Neutral ammonium fluorides in step 2 and it is stirred to abundant dissolving;
4) multipolymer adding 6 parts of vinylformic acid methylene-succinic acids in step 3 is stirred to abundant dissolving;
5) add 3 parts of zirconyl chlorides in step 4 and it is stirred to abundant dissolving;
6) add 0.2 part of alkylphenol polyoxyethylene in steps of 5 and it is stirred to abundant dissolving
7) add 29.8 parts of water in step 6 to be stirred to and mix.
Embodiment 4
A preparation method for pottery liquid, its step is as follows:
1) titanium sodium fluoride 15 parts is taken, 3 parts, hydrofluoric acid, sodium polyacrylate 7 parts, zirconyl chloride 2 parts, toxilic acid 1 part, acetic acid 2 parts, 2 parts, vinylformic acid, 68 parts, water;
2) 40 parts of water add 3 parts of hydrofluoric acid and it is stirred to abundant dissolving;
3) add 15 parts of titanium sodium fluorides in step 2 and it is stirred to abundant dissolving;
4) add 1 part of toxilic acid in step 3,2 parts of acetic acid, 2 parts of vinylformic acid be stirred to dissolving;
5) add 7 parts of sodium polyacrylates in step 4 and it is stirred to abundant dissolving;
6) add 2 parts of zirconyl chlorides in steps of 5 and it is stirred to abundant dissolving;
7) add 28 parts of water in step 6 to be stirred to and mix.