CN105111886A - Water-based epoxy multifunctional steel structure paint and preparation method thereof - Google Patents
Water-based epoxy multifunctional steel structure paint and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a water-based epoxy multifunctional steel structure paint and a preparation method thereof. The water-based epoxy multifunctional steel structure paint is composed of a component A and a component B. The component A comprises a water-based epoxy emulsion, ammonium polyphosphate, pentaerythritol, melamine, a pigment and filler, a functional nano material, a water-based defoaming agent, a water-based wetting and dispersing agent and the like. The component B is a modified amine curing agent. The preparation method comprises the following steps: (1) premixing the ammonium polyphosphate, pentaerythritol, melamine, pigment and functional nano material; (2) gradually adding the mixture obtained in the step (1) into a water solution containing the defoaming agent and wetting and dispersing agent, uniformly dispersing the materials by stirring, adding the epoxy resin emulsion, and dispersing by stirring to obtain the component A of the water-based epoxy multifunctional steel structure paint; and (3) adding the component B and defoaming agent into the component A, stirring uniformly and screening. The water-based epoxy multifunctional steel structure paint has the advantages of excellent fire and flame retardancy, simple preparation method and environment friendliness, and can be widely used for coating various steel structures.
Description
Technical field
The present invention relates to building coating field, is exactly a kind of water-base epoxy multi-function steel structure coating and preparation method thereof.
Background technology
Steel construction, as a kind of energy-saving and environment friendly material, be widely used in building, but exposed steel construction has two large potential safety hazards: perishable and low resistivity against fire.When the heating temperature of steel is elevated to more than 500 DEG C, anchorage force can be lost because of strength degradation.Meanwhile, steel construction is easy to corrosion in air and moist environment, during seriously corroded, and steel construction strength degradation.Therefore, steel construction, when presence of fire and corrosion, often causes buildings to collapse, causes larger loss of life and personal injury and huge financial loss.So fire retardant anticorrosion protection must be carried out to steel construction, to ensure its security.The most cost-effective method in numerous steel structure protective measure at steel structure surface applying coatings.From existing steel structural traverse, most of coating function ratio is more single, protective system might as well be fiery, and frie retardant coating is not anticorrosion, often need multiple tracks coating decoration and primary coat protective system to be coated with frie retardant coating again, technique is loaded down with trivial details, construction period is long, cost is high, and once protective system and ground are peeled off, and namely frie retardant coating also comes off inefficacy.Therefore research and develop a kind of multifunctional coating integrating protection against corrosion and fire prevention etc. multi-functional to have important practical significance.
Current domestic and international existing steel structural traverse can be divided into according to material shape: aq. type, solvent-borne type and powder-type; Expanded polystyrene veneer and non-expansion type can be divided into again according to fireproofing mechanism steel structure fire-proof paint.Along with the enhancing of people's energy-conserving and environment-protective consciousness, aqueous ultra-thin expansion type steel structure coating can meet environmental requirement because of it, has again good fire resistance, becomes the principal direction of steel structure fire-proof paint development.Existing expanding fire-proof paint forms primarily of binder resin, expandable flame retardant component and filler, expandable flame retardant component is many to be made up of (being called for short P-N-C system) ammonium polyphosphate, trimeric cyanamide and tetramethylolmethane, their poor water resistance, along with environment and the propelling of time meeting stripping, decomposition and degraded etc., thus the decline of the fire resistance of coating was even lost efficacy.
Summary of the invention
For above deficiency, the present invention aims to provide multifunctional coating such as a kind of ultra-thin fire retardant anticorrosion water-fast grade and preparation method thereof.
Technical scheme of the present invention is as follows:
A kind of water-base epoxy multi-function steel structure coating, it is characterized in that described coating is made up of following two components: count by weight, component A comprises following component and content (per-cent):
Count by weight, B component comprises following component and content:
The mass ratio of solidifying agent and epoxy resin latex is 3:10-6:10
Described epoxy resin latex is bisphenol A type epoxy resin emulsion, bisphenol f type epoxy resin emulsion, dihydroxyphenyl propane D type epoxy resin latex, one of bisphenol-s epoxy resin emulsion and their corresponding modified resin emulsions, and emulsion solid content is 30-70%.
The ratio of described ammonium polyphosphate, trimeric cyanamide and tetramethylolmethane is 2:1:1.
Described function nano material is nanometer alpha zirconium phosphate.
Described pigment is inorganic color stuffing.
Described wetting dispersing agent, defoamer and thickening material are water-based system.
Described solidifying agent is modified fat amine solidifying agent, and its solid content is 10-80%.
The preparation method of water-base epoxy multi-function steel structure coating, carries out according to the following steps:
(1) ammonium polyphosphate, trimeric cyanamide, tetramethylolmethane, functional nanomaterials and pigment premix is weighed by proportioning.
(2) in Scattered Kettle, add a certain amount of water, wetting dispersing agent, defoamer and flow agent, after stirring at low speed is even, material mixed in (1) is added by amount.In the process of dispersed with stirring, according to add-on and the degree of scatter of material, adjustment stirring velocity.After material all adds, 1000-2000r/min high-speed stirring 20-50 minutes.
(3) reduce stirring velocity to 300-800r/min, add epoxy resin latex and proper quantity of defoaming agent, then raise stirring velocity to 1000-2000r/min, dispersed with stirring 20-50 minutes, obtain the component A of water-base epoxy multi-function steel structure coating.
(4) B component solidifying agent is joined in component A, after stirring at low speed is even, sieve, obtained water-base epoxy multi-function steel structure coating.
(5) obtained water-base epoxy multi-function steel structure coating is formed coating through spraying, brushing, roller coating or dip-coating in metal material surface, under being positioned over the environment of 15-100 DEG C, solidify 10 minutes-20 days.
Beneficial effect of the present invention:
The present invention is on the basis of general P-N-C Intumescent Retardant System, add functional nanomaterials-nanometer zirconium phosphate, it has six square piece Rotating fields, this structure plays " labyrinth " effect in the coating, enhance the water tolerance of P-N-C Intumescent Retardant System, give coating antiseptic performance simultaneously, improve coating fire prevention ageing.Zirconium phosphate is a kind of solid acid with certain catalysis in addition, effectively improves the frothing percentage of coating, and the thickness of foaming layer can reach the 30-50 of former coat-thickness doubly; And zirconium phosphate has higher thermostability, can in expansion carbon residue layer retention tab Rotating fields, increase the proportion of carbon residue layer, strengthen expanding layer intensity, improve fire endurance.
Embodiment
Agents useful for same is commercially available standard aqueous coatings additive(s):
Bisphenol A type epoxy resin emulsion (solid content 50%) (GEM02, upper sea green good water-borne coatings company limited), modified amine curing agent (solid content 50%) (LJ810, upper sea green good water-borne coatings company limited), ammonium polyphosphate (Shandong Shi An Chemical Co., Ltd.); Tetramethylolmethane (Kunshan formed elements super-fine material company limited); Trimeric cyanamide (Chemical Reagent Co., Ltd., Sinopharm Group); Titanium dioxide (Du Pont R706); Nanometer ɑ-zirconium phosphate (self-control); Wetting dispersing agent (BNK-NSF067), defoamer (BNK-G408), purchased from Mei Liken Chemical Group company limited.Flow agent (DP60-6200), purchased from Shanghai great Pan Chemical Co., Ltd..
Embodiment 1
(1) 26.66g ammonium polyphosphate is taken respectively, 13.33g tetramethylolmethane, 13.33g trimeric cyanamide, 11.997g titanium dioxide, 1.333g nanometer zirconium phosphate, premix.
(2) in Scattered Kettle, add 40ml water, add the BNK-G408 of each 0.5ml and 0.3ml of BNK-NSF0678, DP60-6200 successively, after 300r/min stirs, material mixed in (1) is added by amount.Along with constantly adding of material, improve stirring velocity gradually.After material all adds, 1300r/min stirs 30 minutes.
(3) reduce stirring velocity to 500r/min, add epoxy resin latex and 0.2mlBNK-G408, then raise stirring velocity to 1200r/min, dispersed with stirring 30 minutes, obtain the component A of water-base epoxy multi-function steel structure coating.
(4) B component (33.3g) solidifying agent is joined in component A, after 500r/min stirs, sieve, obtained water-base epoxy multi-function steel structure coating.
(5) by preparation water-base epoxy multi-function steel structure paint spay-coating on test panel, at 25 DEG C solidify 72 hours, after maintenance one week, performance test is carried out to paint film, the results are shown in following table.
Embodiment 2
(1) 26.66g ammonium polyphosphate is taken respectively, 13.33g tetramethylolmethane, 13.33g trimeric cyanamide, 10.664g titanium dioxide, 2.666g nanometer zirconium phosphate, premix.
(2) in Scattered Kettle, add 40ml water, add the BNK-G408 of each 0.5ml and 0.3ml of BNK-NSF0678, DP60-6200 successively, after 300r/min stirs, material mixed in (1) is added by amount.Along with constantly adding of material, improve stirring velocity gradually.After material all adds, 1300r/min stirs 30 minutes.
(3) reduce stirring velocity to 500r/min, add epoxy resin latex and 0.2mlBNK-G408, then raise stirring velocity to 1200r/min, dispersed with stirring 30 minutes, obtain the component A of water-base epoxy multi-function steel structure coating.
(4) B component (33.3g) solidifying agent is joined in component A, after 500r/min stirs, sieve, obtained water-base epoxy multi-function steel structure coating.
(5) by preparation water-base epoxy multi-function steel structure paint spay-coating on test panel, at 25 DEG C solidify 72 hours, after maintenance one week, performance test is carried out to paint film, the results are shown in following table.
Embodiment 3
(1) 26.66g ammonium polyphosphate is taken respectively, 13.33g tetramethylolmethane, 13.33g trimeric cyanamide, 9.331g titanium dioxide, 3.999g nanometer zirconium phosphate, premix.
(2) in Scattered Kettle, add 40ml water, add the BNK-G408 of each 0.5ml and 0.3ml of BNK-NSF0678, DP60-6200 successively, after 300r/min stirs, material mixed in (1) is added by amount.Along with constantly adding of material, improve stirring velocity gradually.After material all adds, 1300r/min stirs 30 minutes.
(3) reduce stirring velocity to 500r/min, add epoxy resin latex and 0.2mlBNK-G408, then raise stirring velocity to 1200r/min, dispersed with stirring 30 minutes, obtain the component A of water-base epoxy multi-function steel structure coating.
(4) B component (33.3g) solidifying agent is joined in component A, after 500r/min stirs, sieve, obtained water-base epoxy multi-function steel structure coating.
(5) by preparation water-base epoxy multi-function steel structure paint spay-coating on test panel, at 25 DEG C solidify 72 hours, after maintenance one week, performance test is carried out to paint film, the results are shown in following table.
Embodiment 4
(1) 26.66g ammonium polyphosphate is taken respectively, 13.33g tetramethylolmethane, 13.33g trimeric cyanamide, 6.665g titanium dioxide, 6.665g nanometer zirconium phosphate, premix.
(2) in Scattered Kettle, add 40ml water, add the BNK-G408 of each 0.5ml and 0.3ml of BNK-NSF0678, DP60-6200 successively, after 300r/min stirs, material mixed in (1) is added by amount.Along with constantly adding of material, improve stirring velocity gradually.After material all adds, 1300r/min stirs 30 minutes.
(3) reduce stirring velocity to 500r/min, add epoxy resin latex and 0.2mlBNK-G408, then raise stirring velocity to 1200r/min, dispersed with stirring 30 minutes, obtain the component A of water-base epoxy multi-function steel structure coating.
(4) B component (33.3g) solidifying agent is joined in component A, after 500r/min stirs, sieve, obtained water-base epoxy multi-function steel structure coating.
(5) by preparation water-base epoxy multi-function steel structure paint spay-coating on test panel, at 25 DEG C solidify 72 hours, after maintenance one week, performance test is carried out to paint film, the results are shown in following table.
Comparative example
(1) 26.66g ammonium polyphosphate is taken respectively, 13.33g tetramethylolmethane, 13.33g trimeric cyanamide, 13.33g titanium dioxide, premix.
(2) in Scattered Kettle, add 40ml water, add the BNK-G408 of each 0.5ml and 0.3ml of BNK-NSF0678, DP60-6200 successively, after 300r/min stirs, material mixed in (1) is added by amount.Along with constantly adding of material, improve stirring velocity gradually.After material all adds, 1300r/min stirs 30 minutes.
(3) reduce stirring velocity to 500r/min, add epoxy resin latex and 0.2mlBNK-G408, then raise stirring velocity to 1200r/min, dispersed with stirring 30 minutes, obtain the component A of water-base epoxy multi-function steel structure coating.
(4) B component (33.3g) solidifying agent is joined in component A, after 500r/min stirs, sieve, obtained water-base epoxy multi-function steel structure coating.
(5) by preparation water-base epoxy multi-function steel structure paint spay-coating on test panel, at 25 DEG C solidify 72 hours, after maintenance one week, performance test is carried out to paint film, the results are shown in following table.
The water-base epoxy multi-function steel structure coating obtained in the above-mentioned embodiment 1-4 that provides and comparative example and coating performance result as shown in table 1.
Table 1 coating performance test result
From above experimental result, compared with the comparative example not containing functional nanomaterials zirconium phosphate component, water-base epoxy multi-function steel structure coating containing nanometer zirconium phosphate all has significant improvement in mechanical property, water resistance, antiseptic property and fire resistance, there is excellent physicochemical property and anticorrosion, fire-proof function, the full protection to steel structure material can be realized.
Above said content be only the present invention conceive under basic explanation, and any change done according to technical scheme of the present invention and modification, all belong to protection scope of the present invention.
Claims (8)
1. a water-base epoxy multi-function steel structure coating, is characterized in that: described water-base epoxy multi-function steel structure coating by A, B two component form, count by weight, component A comprises following component and content:
Epoxy resin latex 10-60
Ammonium polyphosphate 6-36
Trimeric cyanamide 3-18
Tetramethylolmethane 3-18
Function nano material 1-20
Pigment 1-20
Wetting dispersing agent 0.1-2
Defoamer 0.1-2
Flow agent 0.1-2
Water is appropriate;
Count by weight, B component comprises following component and content:
The mass ratio of solidifying agent and epoxy resin latex is 3:10-6:10.
2. a kind of water-base epoxy multi-function steel structure coating according to claim 1, it is characterized in that: described epoxy resin latex is bisphenol A type epoxy resin emulsion, bisphenol f type epoxy resin emulsion, dihydroxyphenyl propane D type epoxy resin latex, one of bisphenol-s epoxy resin emulsion and their corresponding modified resin emulsions, and epoxy resin latex solid content is 30-70%.
3. water-base epoxy multi-function steel structure coating according to claim 1, is characterized in that, the ratio of described ammonium polyphosphate, trimeric cyanamide and tetramethylolmethane is 2:1:1.
4. water-base epoxy multi-function steel structure coating according to claim 1, is characterized in that, described function nano material is nanometer alpha zirconium phosphate.
5. water-base epoxy multi-function steel structure coating according to claim 1, is characterized in that, described pigment is inorganic color stuffing.
6. water-base epoxy multi-function steel structure coating according to claim 1, it is characterized in that, described wetting dispersing agent, defoamer and flow agent are water-based system.
7. water-base epoxy multi-function steel structure coating according to claim 1, is characterized in that, described solidifying agent is modified fat amine solidifying agent, and its solid content is 10-80%.
8. a preparation method for water-base epoxy multi-function steel structure coating as claimed in claim 1, is characterized in that, carry out according to the following steps:
(1) ammonium polyphosphate, trimeric cyanamide, tetramethylolmethane, functional nanomaterials and pigment premix is weighed by weight;
(2) in Scattered Kettle, add a certain amount of water, wetting dispersing agent, defoamer and flow agent, after stirring at low speed is even, material mixed in (1) is added by amount, in the process of dispersed with stirring, according to add-on and the degree of scatter of material, adjustment stirring velocity, after material all adds, 1000-2000r/min high-speed stirring 20-50 minutes;
(3) reduce stirring velocity to 300-800r/min, add epoxy resin latex and proper quantity of defoaming agent, then raise stirring velocity to 1000-2000r/min, dispersed with stirring 20-50 minutes, obtain the component A of water-base epoxy multi-function steel structure coating;
(4) B component solidifying agent is joined in component A, after stirring at low speed is even, sieve, obtained water-base epoxy multi-function steel structure coating.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105385312A (en) * | 2015-12-22 | 2016-03-09 | 天津米一科技有限公司 | Anti-corrosion flame-retardant silicyl-modified phenolic epoxy coating |
| CN106543883A (en) * | 2016-11-25 | 2017-03-29 | 江苏环宇纺织科技有限公司 | A kind of sprayable aqueous fire-proof coating being applied on glass and preparation method thereof |
| CN106833211A (en) * | 2017-03-07 | 2017-06-13 | 沈阳宣伯新材料科技有限公司 | A kind of color steel waterborne metallic paint |
| CN106867342A (en) * | 2017-03-07 | 2017-06-20 | 沈阳宣伯新材料科技有限公司 | The steel structure aqueous metallic paint of heavy antisepsis |
| CN106947337A (en) * | 2017-03-07 | 2017-07-14 | 沈阳宣伯新材料科技有限公司 | A kind of color steel heat reflection waterborne metallic paint |
| CN107141961A (en) * | 2017-06-16 | 2017-09-08 | 安徽康瑞高科新材料技术工程有限公司 | A kind of low-smoke fireproof paint |
| CN110041797A (en) * | 2019-04-02 | 2019-07-23 | 中国人民解放军92228部队 | A kind of aqueous ultra-thin expansion type graphene fireproof coating and preparation method thereof |
| CN110373086A (en) * | 2019-07-03 | 2019-10-25 | 河北晨阳工贸集团有限公司 | A kind of aqueous intermediate coat coating and preparation method thereof |
| CN111675952A (en) * | 2020-07-04 | 2020-09-18 | 上海暄洋化工材料科技有限公司 | Self-repairing water-based epoxy fireproof coating and preparation process thereof |
| CN113444425A (en) * | 2021-07-29 | 2021-09-28 | 海洋化工研究院有限公司 | Water-based epoxy fireproof coating and preparation method and application thereof |
| WO2023060571A1 (en) * | 2021-10-15 | 2023-04-20 | 武汉工程大学 | Bio-based macromolecule modified nano zirconium phosphate flame retardant and fire-proof coating prepared by using same |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105385312A (en) * | 2015-12-22 | 2016-03-09 | 天津米一科技有限公司 | Anti-corrosion flame-retardant silicyl-modified phenolic epoxy coating |
| CN106543883A (en) * | 2016-11-25 | 2017-03-29 | 江苏环宇纺织科技有限公司 | A kind of sprayable aqueous fire-proof coating being applied on glass and preparation method thereof |
| CN106833211A (en) * | 2017-03-07 | 2017-06-13 | 沈阳宣伯新材料科技有限公司 | A kind of color steel waterborne metallic paint |
| CN106867342A (en) * | 2017-03-07 | 2017-06-20 | 沈阳宣伯新材料科技有限公司 | The steel structure aqueous metallic paint of heavy antisepsis |
| CN106947337A (en) * | 2017-03-07 | 2017-07-14 | 沈阳宣伯新材料科技有限公司 | A kind of color steel heat reflection waterborne metallic paint |
| CN107141961A (en) * | 2017-06-16 | 2017-09-08 | 安徽康瑞高科新材料技术工程有限公司 | A kind of low-smoke fireproof paint |
| CN110041797A (en) * | 2019-04-02 | 2019-07-23 | 中国人民解放军92228部队 | A kind of aqueous ultra-thin expansion type graphene fireproof coating and preparation method thereof |
| CN110373086A (en) * | 2019-07-03 | 2019-10-25 | 河北晨阳工贸集团有限公司 | A kind of aqueous intermediate coat coating and preparation method thereof |
| CN111675952A (en) * | 2020-07-04 | 2020-09-18 | 上海暄洋化工材料科技有限公司 | Self-repairing water-based epoxy fireproof coating and preparation process thereof |
| CN113444425A (en) * | 2021-07-29 | 2021-09-28 | 海洋化工研究院有限公司 | Water-based epoxy fireproof coating and preparation method and application thereof |
| CN113444425B (en) * | 2021-07-29 | 2022-03-22 | 海洋化工研究院有限公司 | Water-based epoxy fireproof coating and preparation method and application thereof |
| WO2023060571A1 (en) * | 2021-10-15 | 2023-04-20 | 武汉工程大学 | Bio-based macromolecule modified nano zirconium phosphate flame retardant and fire-proof coating prepared by using same |
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Inventor after: Tong Bin Inventor after: Liu Xianglan Inventor after: Hu Kun Inventor after: Bao Chao Inventor after: Zheng Kang Inventor after: Chen Lin Inventor after: Zhang Xian Inventor after: Tian Xingyou Inventor before: Tong Bin Inventor before: Liu Xianglan Inventor before: Hu Kun Inventor before: Bao Chao Inventor before: Zheng Kang Inventor before: Chen Lin Inventor before: Zhang Xian Inventor before: Tian Xingyou |
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Application publication date: 20151202 |