Nano oxide inorganic coated phosphite powder and waterborne coating containing same

A technology of nano-oxide and phosphite, which is applied in the direction of inorganic pigment treatment, anti-corrosion paint, coating, etc., can solve undiscovered problems, achieve high production efficiency, improve anti-corrosion performance, and strengthen anti-rust effect

Active Publication Date: 2017-04-26
GUANGXI RES INST OF CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a new anti-rust pigment, phosphite has been verified for its excellent anti-rust performance in the early stage. Japan's MORI YOICHI, KANI YOSHIHIRO and others began to carry out research on the synthesis and application of phosphite in the mid-to-late 1990s. (Patent publication number JPH09227109 (A), publication date 1997-09-02; Patent publication number JPH08217911 (A) publication date 1996-08-27; Patent publication number JPH07232907 (A), publication date 1995-09-05), ten Over the past few years, experts and scholars at home and abroad have carried out research work on the synthesis and application of phosphite. Our patent CN201310530939 describes in detail the synthesis of phosphite and its application in oil-based paints, but no phosphite has been found. Related reports on the application of phosphate in waterborne coatings

Method used

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  • Nano oxide inorganic coated phosphite powder and waterborne coating containing same

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Comparison scheme
Effect test

Embodiment 1

[0039] 1. Preparation of nano-oxide inorganic coated phosphite powder:

[0040] The mixture of iron phosphite and zinc phosphite is used as the core, and the mixture of nano-MgO and CaO is used as the shell. The mixture of nano-MgO and CaO covers the mixture of iron phosphite and zinc phosphite. The mass is 0.1% of the mass of the mixture of iron phosphite and zinc phosphite.

[0041] The preparation method of this phosphite powder comprises the following steps:

[0042] The mixture of 5kg iron phosphite and 5kg zinc phosphite is crushed, sieved, and the phosphite mixture with a particle size of 0.2 μm is collected, and 0.01kg sodium metaphosphate and 0.01kg sodium phosphate are added as a dispersant to mix and disperse. After adding sodium hydroxide and mixing to adjust the pH to 8, as the basic carrier, the mixture of MgO 0.005kg and CaO 0.005kg with a particle size of 20nm is used for coating reaction in a rod mill. The temperature of the coating reaction is 20°C, and the ...

Embodiment 2

[0050] 1. Preparation of nano-oxide inorganic coated phosphite powder:

[0051] With the mixture of calcium phosphite, strontium phosphite and magnesium phosphite as the core, nano-Al 2 o 3 , SiO 2 , ZrO mixture as the shell, nano-Al 2 o 3 , SiO 2 The mixture of , ZrO wraps the mixture of calcium phosphite, strontium phosphite and magnesium phosphite, among which, the nanometer Al 2 o 3 , SiO 2 The mass of the mixture of ZrO and ZrO is 1% of the mass of the mixture of calcium phosphite, strontium phosphite and magnesium phosphite.

[0052] The preparation method of this phosphite powder comprises the following steps:

[0053] Grind the mixture of 3kg calcium phosphite, 3kg strontium phosphite and 4kg magnesium phosphite, sieve, collect the phosphite mixture with a particle size of 0.5μm, add 0.1kg sodium polyphosphate and 0.1kg silicone dispersant as dispersion Mixing agent for dispersion treatment, while adding potassium hydroxide and mixing to adjust the pH to 9, as...

Embodiment 3

[0061] 1. Preparation of nano-oxide inorganic coated phosphite powder:

[0062] With the mixture of aluminum phosphite and copper phosphite as the core, nano SrO, Fe 2 o 3 、TiO 2 , CuO mixture as the shell, nano SrO, Fe 2 o 3 、TiO 2 A mixture of , CuO wraps the mixture of aluminum phosphite and copper phosphite, among which, nanometer SrO, Fe 2 o 3 、TiO 2 The mass of the mixture of aluminum phosphite and copper phosphite is 5% of the mass of the mixture of aluminum phosphite and copper phosphite.

[0063] The preparation method of this phosphite powder comprises the following steps:

[0064] The mixture of 4kg of aluminum phosphite and 6kg of copper phosphite is pulverized, sieved, and the phosphite mixture with a particle size of 2 μm is collected, and 0.3kg of sodium metaphosphate and 0.3kg of organosilicon dispersant are added as a dispersant and mixed for dispersion treatment. At the same time, after adding calcium hydroxide and mixing to adjust the pH to 12, as t...

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Abstract

The invention provides nano oxide inorganic coated phosphite powder. The nano oxide inorganic coated phosphite powder is characterized in that phosphite is used as the core, nano oxide is used as the shell to wrap the phosphite, and the mass of the nano oxide is 0.1-10% of the mass of the phosphite. The invention further discloses waterborne coating containing the nano oxide inorganic coated phosphite powder. The waterborne coating is prepared by emulsion base materials, water, the nano oxide inorganic coated phosphite powder, auxiliary pigment, filler, pH regulator and auxiliaries. The nano oxide inorganic coated phosphite powder has the advantages that the phosphite is modified through inorganic coating to increase the dispersing performance and application performance of the phosphite so as to allow the phosphite to be applicable to materials such as ink, plastics, rubber, papermaking and coating, the corrosion resistance, thermal stability, aging resistance, weather resistance and the like of the corresponding materials are increased, and the service life of the corresponding materials is prolonged.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a nano-oxide inorganic-coated phosphite powder and a water-based coating containing the nano-oxide inorganic-coated phosphite powder. Background technique [0002] At present, phosphite is an emerging functional material. The relevant research at home and abroad is mainly in the field of coating antirust. Japan's MORI YOICHI, KANI YOSHIHIRO and others began to synthesize, develop and develop phosphite in the middle and late 1990s. Anti-rust application research, including the following patents: Patent Publication No. JPH08217911 (A), published on 1996-08-27; Patent Publication No. JPH09227109 (A), published on 1997-09-02; 1995-09-05. In the 21st century, domestic experts and scholars have also gradually carried out research work on the synthesis and application of phosphite. Among them, our patent CN201310530939 describes in detail the synthesis of phosphite and its application ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/00C09C1/02C09C1/04C09C1/22C09C1/40C09C3/04C09C3/06C09D5/08C09D7/12
CPCC09C1/00C09C1/02C09C1/028C09C1/046C09C1/22C09C1/40C09C3/006C09C3/041C09C3/063C09D5/084C09D7/61
Inventor 王富丽廖欢吴良李开成王俊虹胡容平
Owner GUANGXI RES INST OF CHEM IND CO LTD
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