CN107641804A - A kind of environment-friendly chromium-free passivator and preparation method thereof - Google Patents
A kind of environment-friendly chromium-free passivator and preparation method thereof Download PDFInfo
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- CN107641804A CN107641804A CN201710862826.2A CN201710862826A CN107641804A CN 107641804 A CN107641804 A CN 107641804A CN 201710862826 A CN201710862826 A CN 201710862826A CN 107641804 A CN107641804 A CN 107641804A
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Abstract
The invention discloses a kind of environment-friendly chromium-free passivator and preparation method thereof, passivating agent composition includes 10 20 parts of 10 20 parts of zirconium titanium compound, 5 15 parts of silane coupler, 8 14 parts of corrosion inhibiter, 36 parts of bone black, 28 parts of methenamine, 4 10 parts of sodium fluoride, 5 10 parts of ceramic powder and phenolic resin in parts by weight, preparation method of the present invention is simple, preparation process is environment friendly and pollution-free, obtained passivator asepsis environment-protecting, in the absence of pollution of chromium problem, additionally with corrosion resistance it is strong the advantages of.
Description
Technical field
The present invention relates to passivator preparing technical field, specially a kind of environment-friendly chromium-free passivator and preparation method thereof.
Background technology
Chromating technology is because with excellent passivating film self-repair function, use range is extensive, and possesses cost
Advantage, used within the quite a long time by the main passivating technique as steel, alloy etc..But in chromating agent
Containing Cr VI or trivalent chromium, it is extremely toxic substance, there is carcinogenicity, have a strong impact on health, cause environmental pollution.
Chromium-free deactivation technology then has the advantages that nontoxic, environment-friendly, efficient low-consume, turns into main flow research and development instantly
Direction.Chromium-free deactivation technology is broadly divided into three classes, respectively inorganic passivation, organic passivation and composite passivated.It is used alone at present
Inorganic passivating technique or organic passivation technology, its corrosion resistance are unable to reach chromium passivating effect.
The content of the invention
It is an object of the invention to provide a kind of environment-friendly chromium-free passivator and preparation method thereof, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the present invention provides following technical scheme：A kind of environment-friendly chromium-free passivator, passivating agent composition
Include zirconium titanium compound 10-20 parts, silane coupler 5-15 parts, corrosion inhibiter 8-14 parts, bone black 3-6 parts, Wu Luo in parts by weight
Tropine 2-8 parts, sodium fluoride 4-10 parts, ceramic powder 5-10 parts and phenolic resin 10-20 parts.
Preferably, the preferable composition proportion of passivating agent composition includes 15 parts of zirconium titanium compound, 10 parts of silane coupler, inhibition
15 parts of 11 parts of agent, 4 parts of bone black, 5 parts of methenamine, 7 parts of sodium fluoride, 8 parts of ceramic powder and phenolic resin.
Preferably, the ceramic powder is 600-800 mesh.
Preferably, the corrosion inhibiter is gathered by 30% sodium alginate, 20% ammonium molybdate, 10% sodium metasilicate, 10% multi-component copolymer
PAA, 20% Quadrafos, 10% citric acid composition.
Preferably, its preparation method comprises the following steps：
A, stirring at low speed in stirred tank is added after mixing zirconium titanium compound, bone black, methenamine, sodium fluoride, ceramic powder,
Stir speed (S.S.) is 200-600 revs/min, mixing time 15min-30min, obtains mixture A；
B, the stirring of stirred tank high speed, stir speed (S.S.) 3000-4000 are added after mixing silane coupler, phenolic resin
Rev/min, mixing time 20min-40min, obtain mixture B；
C, mixture B is added in mixture A, corrosion inhibiter is added after being sufficiently stirred, carry out low-temperature heat, heating temperature afterwards
Spend for 45 DEG C -55 DEG C, heat time 10min, obtain mixture C；
D, mixture C is concentrated in vacuo 5min, obtains chrome-free tanning agent.
Compared with prior art, the beneficial effects of the invention are as follows：Preparation method of the present invention is simple, and preparation process environmental protection is without dirt
Dye, obtained passivator asepsis environment-protecting, in the absence of pollution of chromium problem, additionally with corrosion resistance it is strong the advantages of；In the present invention
The corrosion inhibiter of addition has the corrosion inhibition properties of especially strong sequestering power and Nantural non-toxic to metal ion, and metal material surface is gone
Dirty, derusting, removing plating defect have special-effect, and the unimolecule diaphragm of firm compact is formed in treated metal surface,
Produce corrosion mitigating effect；In addition, the preparation method that the present invention uses is simple to operate, it is easy to accomplish, it can be ensured that each material is fully mixed
Close, and it is environmentally safe, it is adapted to industrialization.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
The present invention provides following technical scheme：A kind of environment-friendly chromium-free passivator, passivating agent composition include in parts by weight
Zirconium titanium compound 10-20 parts, silane coupler 5-15 parts, corrosion inhibiter 8-14 parts, bone black 3-6 parts, methenamine 2-8 parts, fluorination
Sodium 4-10 parts, ceramic powder 5-10 parts and phenolic resin 10-20 parts；Wherein, corrosion inhibiter by 30% sodium alginate, 20% ammonium molybdate,
10% sodium metasilicate, 10% multi-component copolymer Sodium Polyacrylate, 20% Quadrafos, 10% citric acid composition
Embodiment one：
Passivating agent composition includes 10 parts of zirconium titanium compound, 5 parts of silane coupler, 8 parts of corrosion inhibiter, bone black 3 in parts by weight
Part, 2 parts of methenamine, 4 parts of sodium fluoride, 5 parts of ceramic powder and 10 parts of phenolic resin.
In the present embodiment, ceramic powder is 600 mesh.
The preparation method of the present embodiment comprises the following steps：
A, stirring at low speed in stirred tank is added after mixing zirconium titanium compound, bone black, methenamine, sodium fluoride, ceramic powder,
Stir speed (S.S.) is 200 revs/min, mixing time 15min, obtains mixture A；
B, silane coupler, phenolic resin are added into the stirring of stirred tank high speed after mixing, stir speed (S.S.) is 3000 turns/
Point, mixing time 20min, obtain mixture B；
C, mixture B is added in mixture A, corrosion inhibiter is added after being sufficiently stirred, carry out low-temperature heat, heating temperature afterwards
Spend for 45 DEG C, heat time 10min, obtain mixture C；
D, mixture C is concentrated in vacuo 5min, obtains chrome-free tanning agent.
Embodiment two：
Passivating agent composition includes 20 parts of zirconium titanium compound, 15 parts of silane coupler, 14 parts of corrosion inhibiter, bone black in parts by weight
20 parts of 6 parts, 8 parts of methenamine, 10 parts of sodium fluoride, 10 parts of ceramic powder and phenolic resin.
In the present embodiment, ceramic powder is 800 mesh.
The preparation method of the present embodiment comprises the following steps：
A, stirring at low speed in stirred tank is added after mixing zirconium titanium compound, bone black, methenamine, sodium fluoride, ceramic powder,
Stir speed (S.S.) is 600 revs/min, mixing time 30min, obtains mixture A；
B, silane coupler, phenolic resin are added into the stirring of stirred tank high speed after mixing, stir speed (S.S.) is 4000 turns/
Point, mixing time 40min, obtain mixture B；
C, mixture B is added in mixture A, corrosion inhibiter is added after being sufficiently stirred, carry out low-temperature heat, heating temperature afterwards
Spend for 55 DEG C, heat time 10min, obtain mixture C；
D, mixture C is concentrated in vacuo 5min, obtains chrome-free tanning agent.
Embodiment three：
Passivating agent composition includes 12 parts of zirconium titanium compound, 7 parts of silane coupler, 10 parts of corrosion inhibiter, bone black 4 in parts by weight
Part, 3 parts of methenamine, 5 parts of sodium fluoride, 6 parts of ceramic powder and 12 parts of phenolic resin.
In the present embodiment, ceramic powder is 700 mesh.
The preparation method of the present embodiment comprises the following steps：
A, stirring at low speed in stirred tank is added after mixing zirconium titanium compound, bone black, methenamine, sodium fluoride, ceramic powder,
Stir speed (S.S.) is 300 revs/min, mixing time 18min, obtains mixture A；
B, silane coupler, phenolic resin are added into the stirring of stirred tank high speed after mixing, stir speed (S.S.) is 3200 turns/
Point, mixing time 25min, obtain mixture B；
C, mixture B is added in mixture A, corrosion inhibiter is added after being sufficiently stirred, carry out low-temperature heat, heating temperature afterwards
Spend for 46 DEG C, heat time 10min, obtain mixture C；
D, mixture C is concentrated in vacuo 5min, obtains chrome-free tanning agent.
Example IV：
Passivating agent composition includes 18 parts of zirconium titanium compound, 14 parts of silane coupler, 13 parts of corrosion inhibiter, bone black in parts by weight
18 parts of 5 parts, 7 parts of methenamine, 9 parts of sodium fluoride, 9 parts of ceramic powder and phenolic resin.
In the present embodiment, ceramic powder is 700 mesh.
The preparation method of the present embodiment comprises the following steps：
A, stirring at low speed in stirred tank is added after mixing zirconium titanium compound, bone black, methenamine, sodium fluoride, ceramic powder,
Stir speed (S.S.) is 500 revs/min, mixing time 28min, obtains mixture A；
B, silane coupler, phenolic resin are added into the stirring of stirred tank high speed after mixing, stir speed (S.S.) is 3800 turns/
Point, mixing time 35min, obtain mixture B；
C, mixture B is added in mixture A, corrosion inhibiter is added after being sufficiently stirred, carry out low-temperature heat, heating temperature afterwards
Spend for 54 DEG C, heat time 10min, obtain mixture C；
D, mixture C is concentrated in vacuo 5min, obtains chrome-free tanning agent.
Embodiment five：
Passivating agent composition includes 16 parts of zirconium titanium compound, 11 parts of silane coupler, 10 parts of corrosion inhibiter, bone black in parts by weight
16 parts of 5 parts, 7 parts of methenamine, 8 parts of sodium fluoride, 8 parts of ceramic powder and phenolic resin.
In the present embodiment, ceramic powder is 600 mesh.
The preparation method of the present embodiment comprises the following steps：
A, stirring at low speed in stirred tank is added after mixing zirconium titanium compound, bone black, methenamine, sodium fluoride, ceramic powder,
Stir speed (S.S.) is 350 revs/min, mixing time 20min, obtains mixture A；
B, silane coupler, phenolic resin are added into the stirring of stirred tank high speed after mixing, stir speed (S.S.) is 3600 turns/
Point, mixing time 32min, obtain mixture B；
C, mixture B is added in mixture A, corrosion inhibiter is added after being sufficiently stirred, carry out low-temperature heat, heating temperature afterwards
Spend for 48 DEG C, heat time 10min, obtain mixture C；
D, mixture C is concentrated in vacuo 5min, obtains chrome-free tanning agent.
Embodiment six：
Passivating agent composition includes 15 parts of zirconium titanium compound, 10 parts of silane coupler, 11 parts of corrosion inhibiter, bone black in parts by weight
15 parts of 4 parts, 5 parts of methenamine, 7 parts of sodium fluoride, 8 parts of ceramic powder and phenolic resin.
In the present embodiment, ceramic powder is 700 mesh.
The preparation method of the present embodiment comprises the following steps：
A, stirring at low speed in stirred tank is added after mixing zirconium titanium compound, bone black, methenamine, sodium fluoride, ceramic powder,
Stir speed (S.S.) is 400 revs/min, mixing time 22min, obtains mixture A；
B, silane coupler, phenolic resin are added into the stirring of stirred tank high speed after mixing, stir speed (S.S.) is 3500 turns/
Point, mixing time 30min, obtain mixture B；
C, mixture B is added in mixture A, corrosion inhibiter is added after being sufficiently stirred, carry out low-temperature heat, heating temperature afterwards
Spend for 50 DEG C, heat time 10min, obtain mixture C；
D, mixture C is concentrated in vacuo 5min, obtains chrome-free tanning agent.
Preparation method of the present invention is simple, and preparation process is environment friendly and pollution-free, obtained passivator asepsis environment-protecting, dirty in the absence of chromium
Dye problem, additionally with corrosion resistance it is strong the advantages of；The corrosion inhibiter added in the present invention has especially strong chela to metal ion
The corrosion inhibition properties of conjunction ability and Nantural non-toxic, there is special-effect to metal material surface decontamination, derusting, removing plating defect,
Treated metal surface forms the unimolecule diaphragm of firm compact, produces corrosion mitigating effect；In addition, the preparation that the present invention uses
Method is simple to operate, it is easy to accomplish, it can be ensured that each material is sufficiently mixed, and environmentally safe, is adapted to industrialization.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
- A kind of 1. environment-friendly chromium-free passivator, it is characterised in that：Passivating agent composition includes zirconium titanium compound 10-20 in parts by weight Part, silane coupler 5-15 parts, corrosion inhibiter 8-14 parts, bone black 3-6 parts, methenamine 2-8 parts, sodium fluoride 4-10 parts, ceramic powder 5-10 parts and phenolic resin 10-20 parts.
- A kind of 2. environment-friendly chromium-free passivator according to claim 1, it is characterised in that：The preferable composition of passivating agent composition Proportioning includes 15 parts of zirconium titanium compound, 10 parts of silane coupler, 11 parts of corrosion inhibiter, 4 parts of bone black, 5 parts of methenamine, sodium fluoride 7 15 parts of part, 8 parts of ceramic powder and phenolic resin.
- A kind of 3. environment-friendly chromium-free passivator according to claim 1 or 2, it is characterised in that：The ceramic powder is 600- 800 mesh.
- A kind of 4. environment-friendly chromium-free passivator according to claim 1 or 2, it is characterised in that：The corrosion inhibiter is by 30% Sodium alginate, 20% ammonium molybdate, 10% sodium metasilicate, 10% multi-component copolymer Sodium Polyacrylate, 20% Quadrafos, 10% citric acid Composition.
- 5. realize a kind of preparation method of environment-friendly chromium-free passivator described in claim 1, it is characterised in that：Its preparation method Comprise the following steps：A, stirring at low speed in stirred tank, stirring are added after mixing zirconium titanium compound, bone black, methenamine, sodium fluoride, ceramic powder Speed is 200-600 revs/min, mixing time 15min-30min, obtains mixture A；B, silane coupler, phenolic resin are added into the stirring of stirred tank high speed after mixing, stir speed (S.S.) be 3000-4000 turn/ Point, mixing time 20min-40min, obtain mixture B；C, mixture B is added in mixture A, corrosion inhibiter is added after being sufficiently stirred, carries out low-temperature heat afterwards, heating-up temperature is 45 DEG C -55 DEG C, heat time 10min, obtain mixture C；D, mixture C is concentrated in vacuo 5min, obtains chrome-free tanning agent.
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Cited By (1)
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| CN110106472A (en) * | 2019-05-05 | 2019-08-09 | 中信戴卡股份有限公司 | A kind of metal surface protection layer and preparation method thereof |
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| JP2012237065A (en) * | 2011-04-27 | 2012-12-06 | Nippon Steel & Sumitomo Metal Corp | Chromate-free precoated metal sheet and substrate treatment agent for precoated metal sheet |
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| CN110106472A (en) * | 2019-05-05 | 2019-08-09 | 中信戴卡股份有限公司 | A kind of metal surface protection layer and preparation method thereof |
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Application publication date: 20180130 |