CN109735182A - A kind of high anti-corrosion anticorrosion galvanizing layer sealer - Google Patents
A kind of high anti-corrosion anticorrosion galvanizing layer sealer Download PDFInfo
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- CN109735182A CN109735182A CN201910076425.3A CN201910076425A CN109735182A CN 109735182 A CN109735182 A CN 109735182A CN 201910076425 A CN201910076425 A CN 201910076425A CN 109735182 A CN109735182 A CN 109735182A
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- sealer
- galvanizing layer
- high anti
- corrosion
- anticorrosion galvanizing
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Abstract
The invention discloses a kind of high anti-corrosion anticorrosion galvanizing layer sealers, and be made of following component: water soluble acrylic resin 60%~80%；Modified silane 20%~30%；Cerous nitrate 0.2%~0.8%；Lanthanum nitrate 0.2%~0.8%；Surplus is pure water.Sealer of the invention is a kind of innovative uniform and thin sealer, 2-3 times of salt spray test performance in general zinc coat can be improved, sealer environmental-protecting performance of the invention is more excellent, meet European Union's ROHS standard, extend the service life 2 times or more longer than general commercial product of working solution, there is sealer of the invention return more better than commercial product to plate processing demolding performace and hanger cleaning performance.
Description
Technical field
The present invention relates to galvanizing surface processing technology fields, more specifically, it relates to a kind of high anti-corrosion anticorrosion galvanizing layer
Sealer.
Background technique
The zinc-plated main corrosion protection coating as steel and iron parts ranks first in plating processing capacity, removes because process unit is opposite
Lower outer, the zinc coat in steel and iron parts is anodic coating, and when electrochemical corrosion occurs for dampness, zinc first corrodes and makes steel
Matrix is protected.But zinc sheet is as amphoteric metal, neither acidproof nor alkaline-resisting, is readily generated basic zinc carbonate in an atmosphere
Erosion and long hickie, lime even white hair.Processing is passivated after zinc-plated again, slushing oil can be improved to some extent, is extended
The time that zinc itself corrodes, therefore Passivation Treatment is unlimitedly done after electrogalvanizing.
Present passivating method is mostly to add one layer of organic matter on the basis of common passivation, utilizes the work of itself and passivating film
With heat-resisting, corrosion resisting property the new film of generation.New passivation technique is then to ensure that the passivating film generated in passivation has just had
There are higher heat resistance and corrosion resistance.Another thinking of new passivation technique is to maintain existing passivation technology, soaks behind
Enter aqua and carry out closing post-processing, realizes the highly corrosion resistant of passivating film.However at present used in sealer there are still
Problems, as coating salt spray test performance is bad, it is easy to be adhered on hanger, it is also difficult to remove, influence the repetition of hanger
Service performance and bad workpiece return plating performance.
Summary of the invention
The object of the present invention is to provide a kind of high anti-corrosion anticorrosion galvanizing layer sealers and preparation method thereof, to overcome existing envelope
The problem of closing that agent coating salt fog performance is bad, sticking tool.
To achieve the above object, it is realized by following technological means: a kind of high anti-corrosion anticorrosion galvanizing layer sealer, by as follows
Component is constituted:
It advanced optimizes are as follows: a kind of high anti-corrosion anticorrosion galvanizing layer sealer is made of following component:
It advanced optimizes are as follows: a kind of high anti-corrosion anticorrosion galvanizing layer sealer is made of following component:
It advanced optimizes are as follows: the modified silane is -14 dimethyl siloxane of polyethylene glycol, polyethylene glycol/poly- the third two
At least one of alcohol -14/4- dimethyl siloxane, -6 acetate siloxanes of polyethylene glycol are a variety of Shi Kewei arbitrary proportions
Mixing.
A kind of preparation method of high anti-corrosion anticorrosion galvanizing layer sealer, includes the following steps: cerous nitrate, lanthanum nitrate first
It is dissolved with pure water；Then lysate is added in the water soluble acrylic resin of calculation amount and is stirred evenly；It finally adds and changes
Property silane stirs evenly.
The advantages of the present invention over the prior art are that:
1, sealer of the invention is a kind of innovative uniform and thin sealer, is suitble to various zinc-plated and admiro etc.
Surface-closed, the workpiece handled through this sealer, surface formed water resistant, moisture-proof, salt spray resistance waterproof layer, have it is extraordinary
Corrosion resistance can make twice of the raising of resistance to neutral salt spray performance of trivalent chromium passivation film or more, can improve salt fog in general zinc coat
2-3 times of test performance；Such as it is zinc-plated after blue and white passivation salt fog can by 48 hours, using we sealer can to 96~
144 hours, commercial available blocking agent substantially effect was all 72 hours, and part is only 60 hours；
2, sealer environmental-protecting performance of the invention is more excellent, meets European Union's ROHS standard；
3, the concentration quantization ratio corresponding with pH that there is sealer of the invention similar product not have produces controlling party
Just, it does not need to adjust pH value with ammonium hydroxide as general commercial product in production；
4, sealer of the invention can extend the service life for extending working solution, and general commercial available blocking agent service life exists
Need replacing within 8-10 months primary, and use sealer of the invention, service life can reach 1 year to a year and a half after completely more
It changes；
5, there is sealer of the invention return more better than commercial product to plate processing demolding performace and hanger cleaning performance,
Commercially available general sealer is easy to be adhered to hanger and forms the confining bed for being difficult removing on product and hanger, influences hanger weight
Multiple service performance and bad workpiece return plating performance, and sealer of the invention is after closed process, and hanger only need to be by normal journey
Sequence can remove the confining bed of glued on top by high temperature degreasing tank, use with that can enter next process, more environmentally-friendly section
Can, it is more suitable for the production of mass automatic production line.
Specific embodiment
Invention is described in further detail below by specific embodiment, it is not to limit that following embodiment, which is descriptive,
Protection scope of the present invention of property.
A kind of high anti-corrosion anticorrosion galvanizing layer sealer, is made of following component:
Process for preparation are as follows:
(1) pure water of calculation amount is added first into container, cerous nitrate and lanthanum nitrate are added under 150 revs/min of revolving speed,
Until dissolution is complete；
(2) water soluble acrylic resin of calculation amount is added in stirred tank, is slowly added under 120 revs/min of revolving speed
Lysate obtained in step (1), until stirring evenly；
(3) modified silane is added into stirred tank under 100 revs/min of revolving speed, until stirring evenly.
The modified silane is -14 dimethyl siloxane of polyethylene glycol, polyethylene/polypropylene glycol -14/4- dimethyl
At least one of siloxanes, -6 acetate siloxanes of polyethylene glycol are the mixing of a variety of Shi Kewei arbitrary proportions.
Above-mentioned sealer is configured to the working solution that concentration is 100~200ml/L, can be made under conditions of -40 DEG C of room temperature
With off-period is 30-60 seconds, and drying temperature is 60-80 DEG C, drying time 15-20min.The pH of gained working solution exists
9.4-10, because sealer itself is in alkalinity, flocculation can be generated by meeting acid, so the pH value of pure water used will be greatly when configuration work liquid
In 7；In addition working solution such as can not wash clean at the reasons because of water, bring passivator raffinate into, need to periodically precipitate and turn over slot or filtration treatment, with
Guarantee closed work piece appearance.
Embodiment 1
(1) 4.4 parts of pure water are added first into container, 0.8 part of cerous nitrate and 0.8 part are added under 150 revs/min of revolving speed
Lanthanum nitrate, until dissolution is complete；
(2) 60 water soluble acrylic resins are added in stirred tank, step (1) is slowly added under 120 revs/min of revolving speed
Obtained in lysate, until stir evenly；
(3) 30 parts of -14 dimethyl siloxanes of polyethylene glycol are added into stirred tank under 100 revs/min of revolving speed, until stirring
It mixes uniformly.
Embodiment 2
(1) 3.6 parts of pure water are added first into container, 0.2 part of cerous nitrate and 0.2 part are added under 150 revs/min of revolving speed
Lanthanum nitrate, until dissolution is complete；
(2) 76 water soluble acrylic resins are added in stirred tank, step (1) is slowly added under 120 revs/min of revolving speed
Obtained in lysate, until stir evenly；
(3) 20 parts of polyethylene/polypropylene glycol -14/4- dimethyl are added into stirred tank under 100 revs/min of revolving speed
Siloxanes, until stirring evenly.
Embodiment 3
(1) 3.8 parts of pure water are added first into container, 0.6 part of cerous nitrate and 0.6 part are added under 150 revs/min of revolving speed
Lanthanum nitrate, until dissolution is complete；
(2) 70 water soluble acrylic resins are added in stirred tank, step (1) is slowly added under 120 revs/min of revolving speed
Obtained in lysate, until stir evenly；
(3) 25 parts of -6 acetate siloxanes of polyethylene glycol are added into stirred tank under 100 revs/min of revolving speed, until stirring
It mixes uniformly.
Embodiment 4
(1) 3.7 parts of pure water are added first into container, 0.6 part of cerous nitrate and 0.7 part are added under 150 revs/min of revolving speed
Lanthanum nitrate, until dissolution is complete；
(2) 65 water soluble acrylic resins are added in stirred tank, step (1) is slowly added under 120 revs/min of revolving speed
Obtained in lysate, until stir evenly；
(3) 15 parts of -6 acetate siloxanes of polyethylene glycol are added into stirred tank under 100 revs/min of revolving speed, 15 parts poly-
Ethylene glycol/polypropylene glycol -14/4- dimethyl siloxane, until stirring evenly.
Embodiment 5
(1) 4 parts of pure water are added first into container, 0.5 part of cerous nitrate and 0.5 part of nitre are added under 150 revs/min of revolving speed
Sour lanthanum, until dissolution is complete；
(2) 70 water soluble acrylic resins are added in stirred tank, step (1) is slowly added under 120 revs/min of revolving speed
Obtained in lysate, until stir evenly；
(3) 15 parts of polyethylene/polypropylene glycol -14/4- dimethyl are added into stirred tank under 100 revs/min of revolving speed
Siloxanes, 10 parts of -14 dimethyl siloxanes of polyethylene glycol, until stirring evenly.
Compared with prior art, the present invention having the advantage that the formula of the invention is reasonable, preparation method is simple, gained plating
Layer shiny appearance is transparent, flat and smooth, gained coating corrosion resistance with higher, and salt spray test performance improves 2-3 times, environmental protection
Excellent performance meets European Union's ROHS standard, returns plating processing demolding performace and hanger cleaning performance is good.
Using national standard: the medium-sized salt spray test standard (NSS) of GB/T2423.17-93 surveys nine sample workpieces
Examination, nine workpiece are closed using after unified electroplating parts passivation using the sealer in above-described embodiment, dependence test knot
Fruit is as follows:
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of high anti-corrosion anticorrosion galvanizing layer sealer, which is characterized in that be made of following component:
2. a kind of high anti-corrosion anticorrosion galvanizing layer sealer according to claim 1, which is characterized in that by following component structure
At:
3. a kind of high anti-corrosion anticorrosion galvanizing layer sealer according to claim 1, which is characterized in that by following component structure
At:
4. a kind of high anti-corrosion anticorrosion galvanizing layer sealer according to any one of claim 1 to 3, which is characterized in that institute
The modified silane stated is -14 dimethyl siloxane of polyethylene glycol, polyethylene/polypropylene glycol -14/4- dimethyl siloxane, gathers
At least one of -6 acetate siloxanes of ethylene glycol is the mixing of a variety of Shi Kewei arbitrary proportions.
5. the preparation method of height described in a kind of any one of claims 1 to 3 is anti-corrosion anticorrosion galvanizing layer sealer, feature exist
In including the following steps: first to dissolve cerous nitrate, lanthanum nitrate with pure water；Then lysate is added to the water-soluble of calculation amount
It is stirred evenly in property acrylic resin；Modified silane is finally added to stir evenly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910076425.3A CN109735182A (en) | 2019-01-26 | 2019-01-26 | A kind of high anti-corrosion anticorrosion galvanizing layer sealer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910076425.3A CN109735182A (en) | 2019-01-26 | 2019-01-26 | A kind of high anti-corrosion anticorrosion galvanizing layer sealer |
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| CN109735182A true CN109735182A (en) | 2019-05-10 |
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| CN201910076425.3A Pending CN109735182A (en) | 2019-01-26 | 2019-01-26 | A kind of high anti-corrosion anticorrosion galvanizing layer sealer |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110165330A1 (en) * | 2010-01-05 | 2011-07-07 | The Sherwin-Williams Company | Primers comprising cerium molybdate |
| CN103031550A (en) * | 2012-12-18 | 2013-04-10 | 安徽翔艺达机械有限公司 | Metallic workpiece pretreatment silane surface treatment agent and preparation method thereof |
| KR20140001700A (en) * | 2012-06-28 | 2014-01-07 | 한라비스테온공조 주식회사 | Composition of surface coating for compressor sliding part and compressor sliding part using thereof |
| CN108300988A (en) * | 2018-01-18 | 2018-07-20 | 长沙艾森设备维护技术有限公司 | A kind of compound chrome-free tanning agent and preparation method of fast filming |
| CN108796481A (en) * | 2018-07-20 | 2018-11-13 | 江苏飞拓界面工程科技有限公司 | A kind of galvanizing chrome-free tanning agent |
| CN109136898A (en) * | 2018-09-17 | 2019-01-04 | 上海威驭新材料科技有限公司 | A kind of silane pretreatment liquid of Non-water washing |
-
2019
- 2019-01-26 CN CN201910076425.3A patent/CN109735182A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110165330A1 (en) * | 2010-01-05 | 2011-07-07 | The Sherwin-Williams Company | Primers comprising cerium molybdate |
| KR20140001700A (en) * | 2012-06-28 | 2014-01-07 | 한라비스테온공조 주식회사 | Composition of surface coating for compressor sliding part and compressor sliding part using thereof |
| CN103031550A (en) * | 2012-12-18 | 2013-04-10 | 安徽翔艺达机械有限公司 | Metallic workpiece pretreatment silane surface treatment agent and preparation method thereof |
| CN108300988A (en) * | 2018-01-18 | 2018-07-20 | 长沙艾森设备维护技术有限公司 | A kind of compound chrome-free tanning agent and preparation method of fast filming |
| CN108796481A (en) * | 2018-07-20 | 2018-11-13 | 江苏飞拓界面工程科技有限公司 | A kind of galvanizing chrome-free tanning agent |
| CN109136898A (en) * | 2018-09-17 | 2019-01-04 | 上海威驭新材料科技有限公司 | A kind of silane pretreatment liquid of Non-water washing |
Non-Patent Citations (1)
| Title |
|---|
| 周英伟等: "热镀锌板无铬钝化技术研究进展", 《表面技术》 * |
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