Urea-containing aluminum alloy surface treatment agent
A technology of aluminum alloy surface and treatment agent, applied in the direction of coating, etc., can solve the problems of unimproved wear resistance, poor ability to adapt to the environment, insufficient uniformity of the conversion coating layer, etc., to achieve good adhesion, less slag, and good The effect of slow release
Inactive Publication Date: 2014-10-15
RUIZHAN TONGLING TECH
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Problems solved by technology
The commonly used method is anodic oxidation method, which forms a conversion film on the surface of aluminum alloy by electrochemical method. Although this method can improve the corrosion resistance of aluminum alloy, its ability to adapt to the environment is poor, and the conversion film layer is not uniform enough and easy to fall off. , the wear resistance has not been improved, and the traditional phosphate conversion and chromate passivation surface treatment technology can obtain good results, but the waste liquid discharged during the treatment process contains heavy metal ions such as zinc, manganese, nickel, chromium, etc. Carcinogens such as nitrite and nitrite are very serious environmental pollution, and the metal surface silanization treatment technology is considered to be expected to replace phosphate conversion treatment and chromium because it does not involve substances that are harmful to the environment, the production process has low energy consumption, and the technology has a wide range of applications. Salt passivation treatment is the latest development direction of metal surface protection alone
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0020] A urea-containing aluminum alloy surface treatment agent, which is made up of the following raw materials in parts by weight:
[0021] Fenugreek gum 1.2, tetramethylammonium nitrate 1.3, urea 2.5, chlorinated paraffin 3, manganese oxide 0.3, microsilica fume 0.6, disodium hydrogen phosphate 0.3, potassium hydrogen tartrate 0.4, propylene glycol adipate polyester 0.2, lithium carbonate 0.4, stearic acid 2.5, film-forming aid 2, silane coupling agent KH560 20, deionized water 135;
[0022] Described film-forming aid is made up of the raw material of following weight part:
[0023] Propylene glycol alginate 30, urea 3, sodium citrate 1, octylisothiazolinone 0.8, chlorinated paraffin 52 3, Span-80 0.5, benzyltriethylammonium chloride 1, deionized water 120;
[0024] Add octylisothiazolinone to chlorinated paraffin 52, stir and mix at 60°C for 4 minutes, add 30% of the weight of the above deionized water, Span-80, stir and disperse at 200 rpm for 10 minutes;
[0025] Mix u...
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The invention discloses a urea-containing aluminum alloy surface treatment agent. The urea-containing aluminum alloy surface treatment agent is prepared from the following raw materials in parts by weight: 1.2-2 parts of bottle gourd pakistan rubber, 1.3-2 parts of tetramethylammonium nitrate, 2.5-4 parts of urea, 2-3 parts of chlorinated paraffin, 0.2-0.3 part of manganese oxide, 0.6-1 part of microsilica, 0.3-1 part of disodium hydrogen phosphate, 0.4-1 part of potassium acid tartrate, 0.1-0.2 part of adipic acid propylene glycol polyester, 0.1-0.4 part of lithium carbonate, 2.5-3 parts of octadecanoic acid, 2-4 parts of a film forming aid, 16-20 parts of a silane coupling agent KH560 and 110-135 parts of deionized water. According to the urea-containing aluminum alloy surface treatment agent, the added urea substitutes for the conventional chromate and nitrate, an excellent buffer effect is obtained, the processing method is simple, fewer dregs are generated, and a formed coating is compact in tissue and good in adhesive property.
Description
[0001] Technical field [0002] The present invention mainly involves the field of surface treatment, especially a urea -containing aluminum alloy surface treatment agent. Background technique [0003] There are many surface treatment methods of aluminum alloy, such as physics, chemistry, physics and chemistry, and comprehensive laws.The commonly used method is anode oxidation method. The electrochemical method is used to form a conversion film on the surface of the aluminum alloy. Although this method can improve the corrosion resistance of aluminum alloy, its ability to adapt to the environment is poor, the converter film layer is not uniform, easy to fall off and fall off, and it is easy to fall off.The abrasion resistance has not been improved, and although traditional phosphate conversion and chromate passivation surface treatment technology can achieve good results, the waste liquid excreted during the treatment process contains heavy metal ions such as zinc, manganese, nic...
Claims
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Login to View More IPC IPC(8): C09D183/04C09D7/12
Inventor 徐泽军
Owner RUIZHAN TONGLING TECH