Preparation method of water-based coating integrating corrosion resistance and fireproofing

A water-based and coating technology, applied in anti-corrosion coatings, fire-proof coatings, epoxy resin coatings, etc., can solve the problem of heat transfer rate reduction, achieve the effects of reducing heat transfer rate, avoiding multiple brushing, and delaying the speed

Active Publication Date: 2018-08-07
辽宁麦琪新材料集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The rate of heat transfer is greatly reduced

Method used

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  • Preparation method of water-based coating integrating corrosion resistance and fireproofing
  • Preparation method of water-based coating integrating corrosion resistance and fireproofing
  • Preparation method of water-based coating integrating corrosion resistance and fireproofing

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[0031] A method for preparing a water-based anti-corrosion and fire-proof integrated coating, the coating is composed of a water-based fluorine-containing acrylic resin and a modified water-based epoxy resin, and comprises the following preparation steps:

[0032] a. Weigh 500ml of deionized water, put it into a heating pot, heat to 100°C and boil for 3-5 times, put the boiled deionized water beaker into a water bath at 50-70°C for later use, and weigh 3-5g Magnesium nitrate and 3-5g of aluminum nitrate are put into a beaker, pour 30-60ml of boiled deionized water, and mechanically stir with a stirring speed of 100-200r / min and a stirring time of 5-10min. Add the mixed solution into constant pressure funnel A. Weigh 2-5g of sodium hydroxide and 5-10g of sodium tripolyphosphate into a beaker, and weigh 30-60ml of boiled deionized water. Use a disperser to stir the solution evenly, the dispersion speed is 20000-30000 / min, and the dispersion time is 5-10min. The resulting solut...

Embodiment 1

[0048] (1) Preparation of tripolyphosphate pillared hydrotalcite:

[0049] Weigh 500ml of deionized water and put it into a heating pot, heat to 100°C and boil for 3 times, put the beaker containing boiled deionized water into a water bath at 60°C for later use, weigh 3g of magnesium nitrate and 3g of aluminum nitrate into Pour 50ml of boiled deionized water into the beaker, and use mechanical stirring at a stirring speed of 100r / min for 5min. Add the mixed solution into constant pressure funnel A. Weigh 3 sodium hydroxide and 8 g sodium tripolyphosphate and pour them into a beaker, and weigh 50 ml boiled deionized water. Use a disperser to stir the solution evenly, the dispersion speed is 30000 / min, and the dispersion time is 10min. The resulting solution was added to constant pressure funnel B. Insert funnels A and B into the flasks, respectively. Add 80ml of boiled deionized water to the flask, put the flask into a water bath at 60°C, under the protection of a nitrogen ...

Embodiment 2

[0055] (1) Preparation of modified waterborne epoxy resin:

[0056] Weigh 500ml of deionized water and put it into a heating pot, heat to 100°C and boil for 3 times, put the beaker containing boiled deionized water into a water bath at 60°C for later use, weigh 3g of magnesium nitrate and 3g of aluminum nitrate into Pour 50ml of boiled deionized water into the beaker, and use mechanical stirring at a stirring speed of 100r / min for 5min. Add the mixed solution into constant pressure funnel A. Weigh 3 sodium hydroxide and 8 g sodium tripolyphosphate and pour them into a beaker, and weigh 50 ml boiled deionized water. Use a disperser to stir the solution evenly, the dispersion speed is 30000 / min, and the dispersion time is 10 minutes. The resulting solution was added to constant pressure funnel B. Insert funnels A and B into the flasks, respectively. Add 80ml of boiled deionized water to the flask, put the flask into a water bath at 60°C, under the protection of a nitrogen at...

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Abstract

The invention relates to a preparation method of water-based coating integrating corrosion resistance and fireproofing and relates to a preparation method of building coating. The preparation method is characterized in that tripolyphosphate pillared hydrotalcites (SLDHs) is filled with water-based epoxy resin, and then the obtained mixture is physically mixed with fluorine-containing acrylic resinto obtain the water-based coating integrating corrosion resistance and fireproofing. The preparation method has the advantages that the self-stratification technology is used to allow the fluorine-containing acrylic resin with low surface energy to be distributed on the upper layer of the coating to provide corrosion resistance and allow the water-based epoxy resin with good moistening performance to be distributed on the lower layer of the coating, and the tripolyphosphate pillared hydrotalcites filled with the epoxy resin can provide flame retardance and corrosion resistance at the same time; the epoxy resin can solidify the acrylic resin and provide interlayer bonding force; the coating system can achieve both corrosion resistance and fireproofing without repeated coating, coating corrosion resistance destroying caused by the fact that a large amount of flame retardant is added is avoided, and corrosion resistance and fireproofing integration of the coating is achieved.

Description

technical field [0001] The invention relates to a preparation method of architectural paint, in particular to a preparation method of a water-based anticorrosion and fireproof integrated paint. Background technique [0002] In the application of architectural metal structures, the two aspects of metal corrosion and fire protection are equally important. Therefore, in some large-scale steel structure buildings, the construction technology of fire-proof coating and anti-corrosion coating is usually used to protect the metal structure by painting multi-layer coatings, so that it can achieve the effect of fire prevention and corrosion resistance. [0003] Of course, the technical method of "multi-layer coating matching" is often used at present, that is, a layer of anti-corrosion primer is applied on the surface of the metal structure, and then a layer of fire-resistant paint is applied to protect the metal structure. The scheme has many advantages, but also has some disadvanta...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D133/04C09D5/08C09D5/18C09D7/20
CPCC08L2205/05C09D5/08C09D5/18C09D7/20C09D163/00C08L33/04C08K3/32
Inventor 王娜刁鑫林张静亢萍陈晓东姜文凯郭净豪
Owner 辽宁麦琪新材料集团有限公司
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