Metal surface treatment agent, method for preparing same and application of metal surface treatment agent
A metal surface treatment, metal surface technology, applied in the direction of coating, etc., can solve problems such as difficulty and achieve the effect of convenient use
Active Publication Date: 2019-05-10
湖北新蓝天新材料股份有限公司
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Adjust the pH value to 5.0 or even lower than 5.0 to 5.5-6.0, which brings some difficulties to the operation
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0030] Stir 1000g of KH560 and 0.075g of KH550 evenly to obtain a metal surface treatment agent, then mix the aqueous solution of ethylene glycol monobutyl ether with the metal surface treatment agent at a mass ratio of 9:1, and stir for 2 hours. After testing, the solution The pH value is 5.53.
Embodiment 2
[0032] Stir 1000g of KH560 and 0.1g of KH550 evenly to obtain a metal surface treatment agent, then mix the aqueous solution of ethylene glycol monobutyl ether with the metal surface treatment agent at a mass ratio of 9:1, and stir for 2 hours. After testing, the solution The pH value is 5.61.
Embodiment 3
[0034] Stir 1000g of KH560 and 0.3g of 550 evenly to obtain a metal surface treatment agent, then mix the aqueous solution of ethylene glycol monobutyl ether with the metal surface treatment agent at a mass ratio of 9:1, and stir for 2 hours. After testing, The pH of the solution was 6.6.
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The invention discloses a metal surface treatment agent, a method for preparing the same and application of the metal surface treatment agent. The metal surface treatment agent comprises KH560 silanecoupling agents and KH550 silane coupling agents. A mass ratio of the KH560 silane coupling agents to the KH550 silane coupling agents is 10000:0.75-3. The metal surface treatment agent, the method and the application have the advantages that the KH560 silane coupling agents and the KH550 silane coupling agents are mixed with one another to prepare the metal surface treatment agent, the metal surface treatment agent can be thoroughly hydrolyzed in ethylene glycol monobutyl ether aqueous solution, the pH (potential of hydrogen) can be improved to a certain extent as compared with the pH value of the pure KH560 silane coupling agents hydrolyzed in ethylene glycol monobutyl ether aqueous solution, and accordingly the metal surface treatment agent can be directly used for treating metal surfaces, does not need to be regulated by sodium bicarbonate and is convenient to use.
Description
technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to a metal surface treatment agent, a preparation method and an application thereof. Background technique [0002] Metal surface pretreatment is the key to metal painting. Phosphating is widely used now, and phosphating is a process in which a metal reacts in an acidic phosphate solution to form a phosphate protective film on its surface. Because the phosphating film produced by phosphating treatment is firmly combined with the substrate, has a microporous structure, and has good adsorption performance, it can greatly improve the coating quality. However, phosphating treatment also has many disadvantages that cannot be overcome by itself: the phosphating treatment solution contains harmful substances such as phosphate and heavy metals, and more or less slagging and harmful gases will be generated during the treatment process, and the discharged wastewater COD And h...
Claims
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IPC IPC(8): C09D183/06C09D183/08
Inventor 冯伦武冯琼华彭汉华李草肖俊平
Owner 湖北新蓝天新材料股份有限公司