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High-cost performance modified aluminum tripolyphosphate anti-rust pigment and preparation method thereof

A technology of aluminum tripolyphosphate and aluminum dihydrogen tripolyphosphate, which is used in anti-corrosion coatings, fibrous fillers, dyeing low-molecular-weight organic compounds, etc., achieves good economic and social benefits, does not require high reaction conditions, and is easy to operate. Effect

Inactive Publication Date: 2015-01-14
GUANGXI UNIV FOR NATITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The modification method is to add alkaline or amphoteric substances to increase its pH value. These modifiers include silicate, zinc oxide, calcium hydroxide or calcium oxide, etc. If sodium silicate is used as a modifier, the modified three Polymer products will reduce the anti-rust effect due to containing sodium ions, while using calcium hydroxide or calcium oxide will cause the modified product to contain unreacted calcium hydroxide or oxide due to the insoluble calcium hydroxide or calcium oxide itself. Calcium, these basic substances will also lead to a decrease in the anti-rust performance of the modified product, and zinc oxide itself can be directly used in coatings, so the product modified with zinc oxide is the safest and most effective, most of the modified three Most aluminum polyphosphate products are modified with zinc oxide
However, the biggest problem with zinc oxide modification is that the price is high. In order to reduce the cost, silica must be added as a filler. Too much will reduce the anti-rust performance. In order to ensure the anti-rust performance of the pigment, the amount of silica filler must be controlled. Therefore, the price of modified aluminum tripolyphosphate APW-I and APW-II has always been high, and the current price is 12,000 About / ton, which is higher than the price of most resins, and the cost performance is not high. Therefore, in the coating industry, modified aluminum tripolyphosphate is generally used in high-grade coatings, and it is rarely or not used in middle and low-grade coatings. It is precisely this The reason hinders the large-scale popularization and application of modified aluminum tripolyphosphate antirust pigment

Method used

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  • High-cost performance modified aluminum tripolyphosphate anti-rust pigment and preparation method thereof
  • High-cost performance modified aluminum tripolyphosphate anti-rust pigment and preparation method thereof
  • High-cost performance modified aluminum tripolyphosphate anti-rust pigment and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0024] 1. Raw material composition and mass quantity:

[0025] 100 grams of aluminum dihydrogen tripolyphosphate, 25 grams of zinc oxide, 200 grams of water, 80 grams of ST pigment powder containing 30% basic potassium aluminum sulfate.

[0026] 2. Preparation method:

[0027] Take 100 grams of aluminum dihydrogen tripolyphosphate in a beaker, add 200 grams of water, add 25 grams of zinc oxide after stirring, stir for 15 minutes at room temperature, and finally add ST pigment powder containing 30% basic aluminum potassium sulfate 80 gram, continue to stir for 5 minutes, pour the viscous material into a ball mill, grind for 30 minutes, filter according to conventional methods, wash, dry, and pulverize to obtain powdery modified aluminum tripolyphosphate antirust pigment.

Embodiment 2

[0029] 1. Raw material composition and mass quantity:

[0030] 100 grams of aluminum dihydrogen tripolyphosphate, 40 grams of zinc oxide, 350 grams of water, 200 grams of ST filler powder containing 23% basic potassium aluminum sulfate.

[0031] 2. Preparation method:

[0032] Take 100 grams of aluminum dihydrogen tripolyphosphate in a beaker, add 350 grams of water, add 40 grams of zinc oxide after stirring, stir for 20 minutes at 40 ° C, and finally add ST filler powder containing 23% basic potassium aluminum sulfate 200 grams, continue to stir for 10 minutes, pour the obtained viscous material into a ball mill, grind for 50 minutes, filter according to conventional methods, wash, dry, and pulverize to obtain powdery modified aluminum tripolyphosphate antirust pigment.

Embodiment 3

[0034] 1. Raw material composition and mass quantity:

[0035] 100 grams of aluminum dihydrogen tripolyphosphate, 30 grams of zinc oxide, 200 grams of water, 50 grams of alum slurry powder containing 15% basic aluminum potassium sulfate.

[0036] 2. Preparation method:

[0037] Take 100 grams of aluminum dihydrogen tripolyphosphate in a beaker, add 200 grams of water, add 30 grams of zinc oxide after stirring, stir for 10 minutes at 40 ° C, and finally add alum slurry powder containing 15% basic potassium aluminum sulfate 50 grams, continue to stir for 5 minutes, pour the viscous material into a ball mill, grind for 30 minutes, filter according to conventional methods, wash, dry, and pulverize to obtain powdery modified aluminum tripolyphosphate antirust pigment.

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Abstract

The present invention disclosed a cost-effective modification of aluminum-proof and preparation methods for measuring banjusterium aluminum phosphate.%Of aluminum sulfate potassium powder and 200-500 parts of water.The cost -effective modification trimer aluminum phosphate is made by changing the type of filler and the amount of addition, no other filler is prepared, and then the chemical modification reaction is performed to change the acidicity of dihydrogen aluminum aluminum aluminum.Get painting products.After this method modified aluminum phosphate, the anti -rust resistance performance of aluminum phosphate can be used in rust -proof coatings that can be used in various resin systems. Because the price of fillers is low, it is a physical rust -proof pigment, so it can significantly improve the modified trimer phosphate.The cost -effectiveness of aluminum pigments.The reaction conditions are not high, the process is simple, the operation is easy, the operation is easy to industrialized, the production cost is low, and the economic benefits and social benefits are better.

Description

technical field [0001] The invention belongs to the technical field of antirust pigment preparation, relates to a method for preparing phosphate antirust pigments, in particular to a modified aluminum tripolyphosphate antirust pigment with high cost performance and a preparation method thereof. Background technique [0002] For a long time, the performance and safety of antirust pigments in metal anticorrosion coatings have been the focus of discussion and research, looking for efficient, multifunctional and environmentally friendly lead and chromium antirust pigments (red lead, zinc chrome yellow) Effective substitutes for pigments at home and abroad have become an urgent problem to be solved. The non-lead and non-chromium pigments that have been studied so far include phosphates, molybdates, borates, ferrites, ion-exchange pigments, etc. Among them, phosphate series pigments occupy a large proportion in terms of variety, performance and application range. important posit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D7/12C09D5/08C09C1/40C09C3/08
Inventor 黄增尉袁爱群杨博马少妹
Owner GUANGXI UNIV FOR NATITIES