CN104231913A - Environment-friendly type aluminum alloy die-cast surface treating agent and preparation method - Google Patents
Environment-friendly type aluminum alloy die-cast surface treating agent and preparation method Download PDFInfo
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- CN104231913A CN104231913A CN201410471052.7A CN201410471052A CN104231913A CN 104231913 A CN104231913 A CN 104231913A CN 201410471052 A CN201410471052 A CN 201410471052A CN 104231913 A CN104231913 A CN 104231913A
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Abstract
The invention relates to an environment-friendly type aluminum alloy die-cast surface treating agent and a preparation method. According to the technical scheme, the environment-friendly type aluminum alloy die-cast surface treating agent comprises the following raw materials: a hyperbranched silane coupling agent, metal alkoxides, an organic solvent, a catalyst, a curing agent, water and tetrahydrofuran. The preparation method comprises the following steps: (1) weighing the raw materials according to mass parts, evenly mixing and then heating at 30-35DEG C for 1h in a water bath, to obtain a surface treating agent; and (2) adding tetrahydrofuran the weight of which is five times that of the surface treating agent obtained in the step (1) for dissolving, adding 2% of curing agent, and evenly stirring for 15min, to obtain the surface treating agent for aluminum alloy. The environment-friendly type aluminum alloy die-cast surface treating agent has the beneficial effects that the aluminum alloy die-cast surface treating agent taking the hyperbranched silane coupling agent as a main film forming agent avoids generation of heavy metal harmful substances caused by passivation treatment, and the environment-friendly type aluminum alloy die-cast surface treating agent is non-toxic, harmless, pollution-free, simple to operate, and clean to produce.
Description
Technical field
The present invention relates to a kind of metal conditioner, particularly relate to a kind of environment-friendly type aluminum alloy die casting surface treatment agent and preparation method.
Background technology
Aluminum alloy die casting is widely used in the industry-by-industry fields such as auto parts machinery, power tool, Hardware fitting, mechanical means, but under physical environment, aluminium alloy is easily oxidized, forms the zone of oxidation of the thin rear inequality of one deck, is easily subject to various pollution in mechanical workout, transportation simultaneously.At present chromic acid passivation or parco-lubrizing process are adopted to the surface treatment of aluminum alloy die casting, although this treatment process is to preventing corrosion of aluminium alloy, the good results are evident, but but there is a lot of shortcoming: chromic acid passivation can produce plurality of heavy metal acid solution, and environmental pollution is serious; Containing the objectionable impurities such as phosphoric acid salt and heavy metal in etching solution, the COD of sewage of discharge is high, and in addition, bonderizing carries out under needing heating condition, and energy consumption is large, complex process.Along with the development of society and the progress of the mankind, traditional aluminum alloy surface treatment process can not meet the demand that environment and resources is saved, so need to develop a kind of environment-friendly type aluminum alloy press casting machine surface treatment agent.
Summary of the invention
In order to overcome the larger shortcoming of existing Aluminum alloy surface treatment agent environmental pollution, the invention provides a kind of environment-friendly type aluminum alloy die casting surface treatment agent and preparation method.
Technical scheme of the present invention is as follows:
A kind of environment-friendly type aluminum alloy die casting surface treatment agent, comprises the raw material of following massfraction:
Described metal alkoxide is any one in tetraethoxy, positive silicic acid propyl ester, methyl silicate, tetraethyl orthosilicate.
Described organic solvent is any one in methyl alcohol, ethanol, propyl carbinol, Virahol.
Described catalyzer is any one in formic acid, acetic acid.
A preparation method for environment-friendly type aluminum alloy die casting surface treatment agent, concrete steps are as follows:
(1) by above-mentioned mass fraction, raw material is weighed, the hyperbranched silane coupling agent of organic solvent dissolution and metal alkoxide, mix and blend 30min is to even, after adding water dilution mixture liquid, add catalyzer to continue to stir 30min, heating in water bath 30 ~ 35 degree of 1h, obtain surface treatment agent;
(2) a certain amount of step (1) gained surface treatment agent is taken, the tetrahydrofuran (THF) adding 5 times of weight dissolves, add the solidifying agent of 2% of alleged step (1) surface treatment agent weight, stir 15min and stir, obtain the surface treatment agent that can be used for aluminium alloy.
Beneficial effect of the present invention is: the aluminum alloy die casting surface treatment agent that the present invention is main film-former with hyperbranched silane coupling agent, overcome the heavy metal objectionable impurities using Passivation Treatment to produce, product is nontoxic, harmless, pollution-free, simple to operate, cleaner production.
Embodiment
By the following examples the present invention is specifically described.
Embodiment one:
(1) 48 parts of hyperbranched silane coupling agents (BTPS), 16 parts of tetraethoxys are taken, add 76 parts of dissolve with ethanol mix and blend 30min to even, after adding 40 parts of water dilution mixture liquid, add 0.5 part of formic acid to continue to stir 30min, heating in water bath 30 degree of 1h, obtain surface treatment agent;
(2) step (1) the gained surface treatment agent of 50g is taken, add 250g tetrahydrofuran (THF) to dissolve, add the solidifying agent of the 1g of alleged step (1) surface treatment agent weight, stir 15min and stir, obtain the surface treatment agent that can be used for aluminium alloy.
Embodiment two:
(1) 58 parts of hyperbranched silane coupling agents (BTPS), 20 parts of tetraethoxys are taken, add 96 parts of dissolve with ethanol mix and blend 30min to even, after adding 50 parts of water dilution mixture liquid, add 1 part of formic acid to continue to stir 30min, heating in water bath 30 degree of 1h, obtain surface treatment agent;
(2) step (1) the gained surface treatment agent of 50g is taken, add 250g tetrahydrofuran (THF) to dissolve, add the solidifying agent of the 1g of alleged step (1) surface treatment agent weight, stir 15min and stir, obtain the surface treatment agent that can be used for aluminium alloy.
Embodiment three:
(1) 48 parts of hyperbranched silane coupling agents (BTPS), 16 parts of positive silicic acid propyl ester are taken, add 76 parts of dissolve with ethanol mix and blend 30min to even, after adding 40 parts of water dilution mixture liquid, add 0.5 part of formic acid to continue to stir 30min, heating in water bath 30 degree of 1h, obtain surface treatment agent;
(2) step (1) the gained surface treatment agent of 50g is taken, add 250g tetrahydrofuran (THF) to dissolve, add the solidifying agent of the 1g of alleged step (1) surface treatment agent weight, stir 15min and stir, obtain the surface treatment agent that can be used for aluminium alloy.
Embodiment four:
(1) 58 parts of hyperbranched silane coupling agents (BTPS), 20 parts of positive silicic acid propyl ester are taken, add 96 parts of dissolve with ethanol mix and blend 30min to even, after adding 50 parts of water dilution mixture liquid, add 1 part of formic acid to continue to stir 30min, heating in water bath 30 degree of 1h, obtain surface treatment agent;
(2) step (1) the gained surface treatment agent of 50g is taken, add 250g tetrahydrofuran (THF) to dissolve, add the solidifying agent of the 1g of alleged step (1) surface treatment agent weight, stir 15min and stir, obtain the surface treatment agent that can be used for aluminium alloy.
Embodiment five:
(1) 48 parts of hyperbranched silane coupling agents (BTPS), 16 parts of tetraethyl orthosilicates are taken, add 76 parts of dissolve with ethanol mix and blend 30min to even, after adding 40 parts of water dilution mixture liquid, add 0.5 part of formic acid to continue to stir 30min, heating in water bath 30 degree of 1h, obtain surface treatment agent;
(2) step (1) the gained surface treatment agent of 50g is taken, add 250g tetrahydrofuran (THF) to dissolve, add the solidifying agent of the 1g of alleged step (1) surface treatment agent weight, stir 15min and stir, obtain the surface treatment agent that can be used for aluminium alloy.
Embodiment six:
(1) 58 parts of hyperbranched silane coupling agents (BTPS), 20 parts of tetraethyl orthosilicates are taken, add 96 parts of dissolve with ethanol mix and blend 30min to even, after adding 50 parts of water dilution mixture liquid, add 1 part of formic acid to continue to stir 30min, heating in water bath 30 degree of 1h, obtain surface treatment agent;
(2) step (1) the gained surface treatment agent of 50g is taken, add 250g tetrahydrofuran (THF) to dissolve, add the solidifying agent of the 1g of alleged step (1) surface treatment agent weight, stir 15min and stir, obtain the surface treatment agent that can be used for aluminium alloy.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (5)
1. an environment-friendly type aluminum alloy die casting surface treatment agent, comprises the raw material of following massfraction:
2. a kind of environment-friendly type aluminum alloy die casting surface treatment agent according to claim 1, is characterized in that: described metal alkoxide is any one in tetraethoxy, positive silicic acid propyl ester, methyl silicate, tetraethyl orthosilicate.
3. a kind of environment-friendly type aluminum alloy die casting surface treatment agent according to claim 1, is characterized in that: described organic solvent is any one in methyl alcohol, ethanol, propyl carbinol, Virahol.
4. a kind of environment-friendly type aluminum alloy die casting surface treatment agent according to claim 1, is characterized in that: described catalyzer is any one in formic acid, acetic acid.
5. a preparation method for environment-friendly type aluminum alloy die casting surface treatment agent, concrete steps are as follows:
(1) by mass fraction according to claim 1, raw material is weighed, the hyperbranched silane coupling agent of organic solvent dissolution and metal alkoxide, mix and blend 30min is to even, after adding water dilution mixture liquid, add catalyzer to continue to stir 30min, heating in water bath 30 ~ 35 degree of 1h, obtain surface treatment agent;
(2) a certain amount of step (1) gained surface treatment agent is taken, the tetrahydrofuran (THF) adding 5 times of weight dissolves, add the solidifying agent of 2% of alleged step (1) surface treatment agent weight, stir 15min and stir, obtain the surface treatment agent that can be used for aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410471052.7A CN104231913A (en) | 2014-09-16 | 2014-09-16 | Environment-friendly type aluminum alloy die-cast surface treating agent and preparation method |
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| CN201410471052.7A CN104231913A (en) | 2014-09-16 | 2014-09-16 | Environment-friendly type aluminum alloy die-cast surface treating agent and preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106752954A (en) * | 2017-01-09 | 2017-05-31 | 广东鼎新高新科技股份有限公司 | CCB high sealing water-repellent paints |
| CN109234723A (en) * | 2018-10-11 | 2019-01-18 | 浙江元美铝业科技有限公司 | A kind of environment-friendly type aluminum alloy die casting process of surface treatment and treatment agent formula |
Citations (3)
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|---|---|---|---|---|
| JP2005023411A (en) * | 2003-07-02 | 2005-01-27 | Mitsubishi Alum Co Ltd | Surface treated aluminum material, and aluminum formed body |
| CN102245807A (en) * | 2008-12-16 | 2011-11-16 | 日本帕卡濑精株式会社 | Surface treating agent for galvanized steel sheet |
| CN103215630A (en) * | 2013-04-23 | 2013-07-24 | 沈阳理工大学 | Method for sealing aluminum alloy anode oxide film pore by adopting organic-inorganic composite silica sol |
-
2014
- 2014-09-16 CN CN201410471052.7A patent/CN104231913A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005023411A (en) * | 2003-07-02 | 2005-01-27 | Mitsubishi Alum Co Ltd | Surface treated aluminum material, and aluminum formed body |
| CN102245807A (en) * | 2008-12-16 | 2011-11-16 | 日本帕卡濑精株式会社 | Surface treating agent for galvanized steel sheet |
| CN103215630A (en) * | 2013-04-23 | 2013-07-24 | 沈阳理工大学 | Method for sealing aluminum alloy anode oxide film pore by adopting organic-inorganic composite silica sol |
Non-Patent Citations (1)
| Title |
|---|
| 郑松林等: ""环保型表面处理剂在铝合金表面处理中的应用"", 《第九届全国转化膜及表面精饰学术年会论文集》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106752954A (en) * | 2017-01-09 | 2017-05-31 | 广东鼎新高新科技股份有限公司 | CCB high sealing water-repellent paints |
| CN106752954B (en) * | 2017-01-09 | 2019-04-02 | 广东鼎新高新科技股份有限公司 | CCB high sealing water-repellent paint |
| CN109234723A (en) * | 2018-10-11 | 2019-01-18 | 浙江元美铝业科技有限公司 | A kind of environment-friendly type aluminum alloy die casting process of surface treatment and treatment agent formula |
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Application publication date: 20141224 |