CN105131665A - Aqueous inorganic zinc-rich prime coat and preparation method thereof - Google Patents
Aqueous inorganic zinc-rich prime coat and preparation method thereof Download PDFInfo
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- CN105131665A CN105131665A CN201510481697.3A CN201510481697A CN105131665A CN 105131665 A CN105131665 A CN 105131665A CN 201510481697 A CN201510481697 A CN 201510481697A CN 105131665 A CN105131665 A CN 105131665A
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Abstract
The present invention relates to an aqueous inorganic zinc-rich prime coat, which comprises a component A and a component B, wherein the component A comprises 35-65 parts of an alkali metal silicate, 10-15 parts of an aluminum modified silica sol, 15-30 parts of deionized water, 5-25 parts of an inorganic pigment, 1-3 parts of organic bentonite, 2-8 parts of water glass, 2-8 parts of a crystal whisker reinforced material and 1-3 parts of an auxiliary agent, and the component B comprises 50-70 parts of zinc powder, 2-6 parts of nanometer zinc oxide, 1-3 parts of nanometer titanium dioxide, 2-6 parts of composite iron-titanium powder and 2-7 parts of a curing agent. The aqueous inorganic zinc-rich prime coat of the present invention has characteristics of chemical corrosion resistance, high temperature resistance, low temperature resistance, strong adhesion and strong impact resistance.
Description
Technical field
The present invention relates to a kind of coating composition and preparation method thereof, be specifically related to coating composition of the rich zinc of a kind of aqueous inorganic and preparation method thereof.
Background technology
Corrosion is the principal mode that steel lost efficacy.In order to suppress, preventing the generation of corroding, reduce financial loss, need to take safeguard procedures.For a long time, people have employed multiple technologies means for this reason.Wherein, at steel surface coating corrosion protection coating, isolated corrosive medium and metallic matrix, one of method become most economical, reliable, effective, commonly using.
Current coating antiseptic method by physics, chemistry, electrochemical technique steel material surface cover on another kind of metal or on-metallic protective coating, stop by this protective layer or slow down metallic corrosion.Zinc protective layer is exactly one of common, effective coating antiseptic method.Because the standard potential of zinc is defeated by iron, zinc layers has the effect of sacrificial protection steel matrix in water and malaria, thus greatly can extend the work-ing life of steel, shows excellent preservative effect.
Zinc layers can adopt thermospraying zinc or zinc-rich paint mode to obtain.Zinc-rich paint has physical shielding effect, has again electrochemical galvanic protection effect.So be widely used in protection against corrosion field since 1950's, until as the principal item of heavy duty system.Zinc-rich paint can be divided into 3 kinds again: organic zinc-rich paint, solvent-borne type inorganic zinc coating and aqueous inorganic zinc-enriched coating.Wherein, aqueous inorganic zinc-enriched coating with its safety non-toxic, do not fire not quick-fried, environmentally safe, meet the developing direction of environmental protection, low-carbon (LC) and green idea, be just more and more subject to people's attention.
Aqueous inorganic zinc-enriched coating is one of minority corrosion fatigue life outstanding coating variety more than 10 years; the corrosion-resisting function of ground is comprised to the galvanic protection effect and shielding effect of corroding early stage, the protective mechanism related to comprises: shielding effect, galvanic protection, film self-healing, passivation etc.Film hard wear resistant, in certain pH value range, chemical resistance corrosive nature is excellent, high temperature resistantly can reach 400 DEG C.It both can be used as single long-effective protection coating, also can be used as the priming paint of high-performance coating system.Since the seventies, be widely used in the oceans such as boats and ships steel deck, offshore steel structure, storage tank, chemical plant, bridge, TV tower and freight container and industrial environment.
Aqueous inorganic zinc-enriched coating, film process comprises moisture evaporative process and film-forming process, construction is comparatively large by envrionment temperature, humidity effect with solidification, shortens its set time further, and reducing construction temperature and don't affecting its antiseptic property becomes the key issue affecting its actual use.Meanwhile, because in film, zinc content is high, far more than CPVC, film porous, cause durability of coating poor, shock resistance is poor.
Summary of the invention
Goal of the invention: object of the present invention, mainly for the deficiencies in the prior art, provides waterborne inorganic einc-rich primer that a kind of resistance to chemical attack, high-low temperature resistant, sticking power and shock resistance are strong and preparation method thereof.
Technical scheme: in order to solve the problems of the technologies described above, a kind of waterborne inorganic einc-rich primer of the present invention, it comprises component A and B component;
Calculate by weight, described component A comprises: the auxiliary agent of the organobentonite of the deionized water of the alkalimetal silicate of 35-65 part, the al-modified silica sol of 10-15 part, 15-30 part, the mineral dye of 5-25 part, 1-3 part, the water glass of 2-8 part, the whisker reinforcement material of 2-8 part and 1-3 part;
Described auxiliary agent comprises dispersion agent, flow agent and defoamer;
Calculate by weight, described B component comprises: the solidifying agent of the zinc powder of 50-70 part, the nano zine oxide of 2-6 part, the nano titanium oxide of 1-3, the composite iron-titanium powder of 2-6 part and 2-7 part.
Described water glass is strong as mineral binder bond viscosifying power, and nano titanium oxide and composite iron-titanium powder can strengthen the UV resistance of priming paint of the present invention and the performance of rust protection.
Described alkalimetal silicate is two kinds in potassium silicate, water glass, lithium silicate.
Described mineral dye is one or more in titanium dioxide, red iron oxide, mica powder, carbon black or phthalocyanine blue.
Described whisker reinforcement material is one or more in magnesium sulfate crystal whisker, calcium sulfate crystal whiskers, magnesium borate crystal whisker, ZnOw, aluminium borate whisker.
Described dispersion agent is one or more in alkyl coupling agent, aminomethylpropanol, ammonium polyacrylate salt, polyacrylic acid sodium salt.
Described flow agent is one or both in polyacrylic acid, carboxymethyl cellulose.
Described defoamer is one or both in dimethyl silicone oil, silicone antifoam agent.
A preparation method for waterborne inorganic einc-rich primer, it comprises the following steps,
(1) preparation of component A: first by alkalimetal silicate, al-modified silica sol, portions of de-ionized water, water glass, auxiliary agent, fully mix; Then add mineral dye, organobentonite, whisker reinforcement material and all the other deionized waters, fully mix, gained liquid is crossed 70 mesh sieves, be i.e. obtained component A;
(2) preparation of B component: zinc powder, nano zine oxide, nano titanium oxide, composite iron-titanium powder, solidifying agent are fully mixed, i.e. obtained B component.
Described organobentonite granular size is 300-400 order.
The using method of waterborne inorganic einc-rich primer of the present invention: the component A of waterborne inorganic einc-rich primer and B component are fully mixed, after crossing 80-100 mesh sieve, is sprayed at the position of required spraying; When spraying paint, film thickness is 70-100 μm; Use in 24h after mixing.
Beneficial effect: compared with prior art, its remarkable advantage is in the present invention: waterborne inorganic einc-rich primer of the present invention has excellent antiseptic property, energy high-low temperature resistant, acid-fast alkali-proof, chemically-resistant solvent, have stronger sticking power, shock resistance and weathering resistance.
Embodiment
The invention will be further elaborated by the following examples.
Embodiment 1:
The preparation method of a kind of waterborne inorganic einc-rich primer of the present invention comprises the following steps:
(1) preparation of component A: first by alkalimetal silicate, al-modified silica sol, portions of de-ionized water, water glass, auxiliary agent, fully mix; Then add above-mentioned mineral dye, organobentonite, whisker reinforcement material and all the other deionized waters, fully mix, gained liquid is crossed 70 mesh sieves, be i.e. the component A of obtained waterborne inorganic einc-rich primer of the present invention;
(2) preparation of B component: zinc powder, nano zine oxide, nano titanium oxide, composite iron-titanium powder, solidifying agent are fully mixed, the i.e. B component of obtained waterborne inorganic einc-rich primer of the present invention;
Organobentonite granular size is 300-400 order.
In embodiment 1, the proportioning of each raw material is as shown in table 1.
Component A obtained in embodiment 1 and B component are fully mixed, waits for 8min, after the bubble of coating surface disappears, cross 80-100 mesh sieve, be then sprayed on sample steel plate; Spraying paint film thickness is 80 μm.
Detect product performance obtained in embodiment 1, result is as shown in table 2.
Proportioning (the unit: g) of table 1 embodiment 1 Raw
The performance of product in table 2 embodiment 1
From result in table 2, waterborne inorganic einc-rich primer of the present invention has excellent antiseptic property, and energy high-low temperature resistant, acid-fast alkali-proof, chemically-resistant solvent, have stronger sticking power and shock resistance, have excellent weathering resistance.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection scope of the present invention.
Claims (9)
1. a waterborne inorganic einc-rich primer, is characterized in that: it comprises component A and B component;
Calculate by weight, described component A comprises: the auxiliary agent of the organobentonite of the deionized water of the alkalimetal silicate of 35-65 part, the al-modified silica sol of 10-15 part, 15-30 part, the mineral dye of 5-25 part, 1-3 part, the water glass of 2-8 part, the whisker reinforcement material of 2-8 part and 1-3 part;
Described auxiliary agent comprises dispersion agent, flow agent and defoamer;
Calculate by weight, described B component comprises: the solidifying agent of the zinc powder of 50-70 part, the nano zine oxide of 2-6 part, the nano titanium oxide of 1-3, the composite iron-titanium powder of 2-6 part and 2-7 part.
2. waterborne inorganic einc-rich primer according to claim 1, is characterized in that: described alkalimetal silicate is two kinds in potassium silicate, water glass, lithium silicate.
3. waterborne inorganic einc-rich primer according to claim 1, is characterized in that: described mineral dye is one or more in titanium dioxide, red iron oxide, mica powder, carbon black or phthalocyanine blue.
4. waterborne inorganic einc-rich primer according to claim 1, is characterized in that: described whisker reinforcement material is one or more in magnesium sulfate crystal whisker, calcium sulfate crystal whiskers, magnesium borate crystal whisker, ZnOw, aluminium borate whisker.
5. waterborne inorganic einc-rich primer according to claim 1, is characterized in that: described dispersion agent is one or more in alkyl coupling agent, aminomethylpropanol, ammonium polyacrylate salt, polyacrylic acid sodium salt.
6. waterborne inorganic einc-rich primer according to claim 1, is characterized in that: described flow agent is one or both in polyacrylic acid, carboxymethyl cellulose.
7. waterborne inorganic einc-rich primer according to claim 1, is characterized in that: described defoamer is one or both in dimethyl silicone oil, silicone antifoam agent.
8. a preparation method for waterborne inorganic einc-rich primer according to claim 1, is characterized in that: it comprises the following steps,
(1) preparation of component A: first by alkalimetal silicate, al-modified silica sol, portions of de-ionized water, water glass, auxiliary agent, fully mix; Then add mineral dye, organobentonite, whisker reinforcement material and all the other deionized waters, fully mix, gained liquid is crossed 70 mesh sieves, be i.e. obtained component A;
(2) preparation of B component: zinc powder, nano zine oxide, nano titanium oxide, composite iron-titanium powder, solidifying agent are fully mixed, i.e. obtained B component.
9. the preparation method of waterborne inorganic einc-rich primer according to claim 8, is characterized in that: described organobentonite granular size is 300-400 order.
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| CN105817577A (en) * | 2016-05-27 | 2016-08-03 | 马鞍山市兴隆铸造有限公司 | High-hardness mica powder modified quartz-based lost foam paint and preparation method thereof |
| CN105834354A (en) * | 2016-05-27 | 2016-08-10 | 马鞍山市兴隆铸造有限公司 | High-hardness anti-cracking mica powder modified silica matrix EPC coating and preparation method thereof |
| CN105855461A (en) * | 2016-05-27 | 2016-08-17 | 马鞍山市兴隆铸造有限公司 | Quartz-based expendable pattern paint modified by mica powder, for high-precision castings and preparation method of quartz-based expendable pattern paint |
| CN105855458A (en) * | 2016-05-27 | 2016-08-17 | 马鞍山市兴隆铸造有限公司 | Easy-to-sinter quartz-based expendable pattern paint modified by mica powder and preparation method of easy-to-sinter quartz-based expendable pattern paint |
| CN105855460A (en) * | 2016-05-27 | 2016-08-17 | 马鞍山市兴隆铸造有限公司 | High-bending-strength quartz-based expendable pattern paint modified by mica powder and preparation method of high-bending-strength quartz-based expendable pattern paint |
| CN105855459A (en) * | 2016-05-27 | 2016-08-17 | 马鞍山市兴隆铸造有限公司 | High-temperature good-strength quartz-based expendable pattern paint modified by mica powder and preparation method of high-temperature good-strength quartz-based expendable pattern paint |
| CN106752156A (en) * | 2016-11-23 | 2017-05-31 | 刘恩林 | A kind of new aqueous inorganic zinc-enriched coating |
| CN107151465A (en) * | 2017-05-31 | 2017-09-12 | 唐山建华科技发展有限责任公司 | High anti-corrosion zinc rich primer of aqueous, environmental protective of graphene-containing and preparation method thereof |
| CN107502006A (en) * | 2017-08-29 | 2017-12-22 | 上海宜瓷龙新材料股份有限公司 | Waterborne zinc-rich primer compositions |
| WO2018218821A1 (en) * | 2017-05-27 | 2018-12-06 | 太仓卡斯特姆新材料有限公司 | Aqueous inorganic zinc-rich primer and preparation method therefor |
| CN109777176A (en) * | 2019-01-15 | 2019-05-21 | 湖南康瑞涂料科技有限公司 | A kind of zinc-rich water-based industrial paint and preparation method thereof |
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| CN110002834A (en) * | 2019-04-04 | 2019-07-12 | 周勇 | A kind of aqueous inorganic zinc-rich coating that microporosity is effectively reduced |
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Application publication date: 20151209 |