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Calcium zinc phosphate/bagasse composite anti-corrosion pigment and preparation method thereof

A zinc-calcium phosphate and anti-corrosion pigment technology, which is applied in the field of material chemistry, can solve the problems of small particle size of zinc-calcium phosphate powder, cumbersome preparation method of zinc-calcium phosphate, and restricted performance, so as to improve anti-corrosion performance, high efficiency and rapid Synthesis, excellent anti-corrosion performance

Active Publication Date: 2019-04-16
XIAMEN SUNRUI SHIP COATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The preparation method of zinc calcium phosphate described above is relatively cumbersome, and the prepared zinc calcium phosphate powder cannot be uniformly dispersed in the coating system due to its small particle size, which seriously restricts its performance.

Method used

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  • Calcium zinc phosphate/bagasse composite anti-corrosion pigment and preparation method thereof
  • Calcium zinc phosphate/bagasse composite anti-corrosion pigment and preparation method thereof
  • Calcium zinc phosphate/bagasse composite anti-corrosion pigment and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Take 20mL each of 0.04mmol / L zinc chloride and 0.02mmol / L calcium chloride solution, and 2g of pretreated bagasse, put them in a 100ml three-neck bottle and soak them for 3h, then put them into an ultrasonic instrument, and the ultrasonic power Set at 200w, under the condition of ultrasonic stirring, slowly add 0.01mol / L phosphoric acid solution dropwise, the time to complete the dropwise addition is 1h; obtain a solid product after filtration, wash the product with deionized water and ethanol, and then dry it to obtain Zinc calcium phosphate / bagasse composite anticorrosion pigment.

Embodiment 2

[0026] Take 20mL each of 0.04mmol / L zinc chloride and 0.04mmol / L calcium chloride solution, and 2g of pretreated bagasse, soak in a 100ml three-neck bottle for 3h, then put it into an ultrasonic instrument, and the ultrasonic power Set at 200w, under the condition of ultrasonic stirring, slowly add 0.01mol / L phosphoric acid solution dropwise, the time to complete the dropwise addition is 2h; obtain a solid product after filtration, wash the product with deionized water and ethanol, and then dry it to obtain Zinc calcium phosphate / bagasse composite anticorrosion pigment.

Embodiment 3

[0028] Take 20mL each of 0.04mmol / L zinc chloride and 0.02mmol / L calcium chloride solution, and 2g of pretreated bagasse, soak them in a 100ml three-neck bottle for 12h, then put them into an ultrasonic instrument, and the ultrasonic power Set at 300w, under the condition of ultrasonic stirring, slowly add 0.03mol / L phosphoric acid solution dropwise, the time to complete the dropwise addition is 5h; obtain a solid product after filtration, wash the product with deionized water and ethanol, and then dry it to obtain Zinc calcium phosphate / bagasse composite anticorrosion pigment.

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Abstract

The invention provides calcium zinc phosphate / bagasse composite anti-corrosion pigment and a preparation method thereof. The preparation method comprises the steps of mixing a zinc salt solution and acalcium salt solution to form a mixed raw material solution; putting bagasse into the mixed raw material solution for soaking, and dropwise adding a phosphoric acid solution to a bagasse soaking solution for a reaction in an ultrasonic stirring state; after the reaction is completed, conducting filtering to obtain a solid substance, and washing and drying the solid substance to obtain the calciumzinc phosphate / bagasse composite anticorrosive pigment. Prepared calcium zinc phosphate has a micro-nano size and is uniformly distributed on the bagasse, and the reactivity of zinc phosphate is improved after calcium particles are modified; meanwhile, calcium zinc phosphate is compounded with the bagasse, the problems of easy aggregation and difficult dispersion of calcium zinc phosphate with the small particle size are solved, and the anti-corrosion performance of calcium zinc phosphate is fully exerted. The preparation process is simple and high in synthesis efficiency and has broad marketapplication prospects.

Description

technical field [0001] The invention belongs to the field of material chemistry, and in particular relates to a zinc calcium phosphate / bagasse composite anticorrosion pigment and a preparation method thereof. Background technique [0002] As a non-toxic anti-rust pigment with excellent performance, zinc phosphate can be used to prepare anti-corrosion coatings with phenolic resin, epoxy resin, medium oil alkyd and urethane resin, etc. It is currently the most widely used environmentally friendly anti-rust pigment. Traditional zinc phosphate products have large particle size, uneven distribution, low anti-rust activity of pigments, and the formation of effective protective film is too slow, so the anti-rust performance is limited. As a result, it cannot fully replace the traditional chrome-lead toxic anti-rust pigments. [0003] In order to replace the traditional antirust pigments containing heavy metals, modify them, and study the modified zinc phosphate with small particle...

Claims

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Application Information

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IPC IPC(8): C09D5/08
CPCC09D5/082C09D5/084
Inventor 魏金伯李至秦李陈郭杨名亮
Owner XIAMEN SUNRUI SHIP COATING
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