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Water-based inorganic floor coating and preparation method thereof

A floor coating, inorganic technology, applied in the direction of coating, etc., can solve the problems of high brittleness of the coating film, easy cracking of the coating film, high curing temperature, etc., and achieve the effect of improving water retention, scrub resistance and mechanical properties

Inactive Publication Date: 2020-06-09
杭州蓝田涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This floor coating uses nano-silicate as the main film-forming substance and belongs to alkali metal silicate coatings. In addition to alkali metal silicate coatings, inorganic coatings can also be divided into phosphate coatings and silica sols according to their film-forming substances. Inorganic coatings, etc.; alkali metal silicate coatings are a type of coating with potassium silicate and sodium silicate as binders. The film-forming mechanism is that sodium silicate or potassium silicate reacts with carbon dioxide in the air to form silicic acid sol , with the evaporation of water, dehydration forms inorganic silicon-oxygen chain network macromolecules, which have good heat resistance, flame resistance and acid resistance, but because alkali metals are dispersed in the coating film in the form of ions, when the coating film encounters water, the coating film will Destroyed by the dissociation of alkali metal ions, making it less water resistant
Phosphate coatings use aqueous solution of acid phosphate as the film-forming substance, and form a network structure through high-temperature baking. brittle defect
Silica sol coating is based on the water dispersion of colloidal silica as the film-forming material. The film-forming mechanism is that when the silica sol loses water and evaporates, the colloidal molecules increase, and the Si-O-Si three-dimensional network structure is formed between the silica particles. It has the advantages of hard coating film, strong adhesion and good water resistance, but this kind of coating has the defect that the coating film is easy to crack

Method used

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  • Water-based inorganic floor coating and preparation method thereof
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Examples

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preparation example 1

[0043] Preparation example 1 of organic sepiolite: a. Take 50kg of sepiolite powder, add it to 200kg of water, and stir at a speed of 2000r / min for 40min at a temperature of 50°C to obtain a sepiolite dispersion;

[0044] b. Add 8kg of dioctadecyldimethylammonium bromide to the sepiolite dispersion, stir for 1h at a speed of 800r / min, then add 3kg of stearic acid amide, and stir for 20min at a speed of 800r / min , to obtain a suspension;

[0045] c. Centrifuge the suspension at a speed of 5000 r / min for 3 minutes, remove the supernatant, and obtain a precipitate; dry the precipitate at a temperature of 90° C. for 12 hours, and pulverize through a 200-mesh sieve to obtain organic sepiolite.

preparation example 2

[0046] Preparation example 2 of organic sepiolite: a. Take 50kg of sepiolite powder, add it to 250kg of water, and stir at a speed of 2000r / min for 50min at a temperature of 55°C to obtain a sepiolite dispersion;

[0047] b. Add 9kg of dioctadecyldimethylammonium bromide to the sepiolite dispersion, stir for 1.5h at a speed of 800r / min, then add 4kg of stearic acid amide, and stir at a speed of 800r / min 25min, obtain suspension;

[0048] c. Centrifuge the suspension at a speed of 5500 r / min for 4 minutes, remove the supernatant, and obtain a precipitate; dry the precipitate at a temperature of 90° C. for 12 hours, and pulverize through a 200-mesh sieve to obtain organic sepiolite.

preparation example 3

[0049] Preparation example 3 of organic sepiolite: a, take 50kg of sepiolite powder, add it to 300kg of water, and stir for 60min at a speed of 2000r / min at a temperature of 60°C to obtain a sepiolite dispersion;

[0050] b. Add 10kg of dioctadecyldimethylammonium bromide to the sepiolite dispersion, stir for 2 hours at a speed of 800r / min, then add 5kg of stearic acid amide, and stir for 30min at a speed of 800r / min , to obtain a suspension;

[0051] c. Centrifuge the suspension at a speed of 6000 r / min for 5 minutes, remove the supernatant to obtain a precipitate; dry the precipitate at a temperature of 90° C. for 12 hours, and crush through a 200-mesh sieve to obtain organic sepiolite.

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Abstract

The invention relates to the field of coatings, specifically to a water-based inorganic floor coating and a preparation method thereof. The water-based inorganic floor coating comprises the followingcomponents in parts by weight: 240-260 parts of an inorganic nanometer reinforcing agent, 1.5-2.5 parts of a defoaming agent, 90-110 parts of titanium dioxide, 380-420 parts of a filler, 3-4 parts ofcellulose, 170-175 parts of water, 1-2 parts of a bactericide, 50-70 parts of a film-forming emulsion and 1-3 parts of a film-forming aid, wherein the inorganic nanometer reinforcing agent is preparedfrom nanometer silicon dioxide, a silane coupling agent and organic sepiolite. The water-based inorganic floor coating provided by the invention is high in bonding strength on a cement base surface,does not fall off or peel off, can improve the hardness, wear resistance and impact resistance of the cement base surface, and has very good water resistance and scrubbing resistance.

Description

technical field [0001] The invention relates to the technical field of coatings, more specifically, it relates to a water-based inorganic floor coating and a preparation method thereof. Background technique [0002] Inorganic coatings are coatings with inorganic materials as the main film-forming substance, which are widely used in daily life fields such as architecture and painting; compared with organic coatings, inorganic coatings mostly use water as the dispersion medium. The pollution to the environment is less during the process, and most of the inorganic coatings are alkaline, which is more suitable for application on bases such as cement and lime sand that are also alkaline, and can chemically react with the lime in these substrates to form silicic acid Calcium crystals can be integrated with the base layer, so it has excellent adhesion. [0003] In the prior art, the patent application document with the application publication number CN107739189A discloses a super ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D7/61C09D7/62C09D1/00
CPCC08K2003/2241C08K2003/3045C08K2201/011C09D1/00C09D125/14C09D7/61C09D7/62C09D7/70C08K13/06C08K9/06C08K9/04C08K7/26C08K3/36C08K3/22C08K3/30C08K3/34
Inventor 纪晓
Owner 杭州蓝田涂料有限公司
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