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High temperature resistant abrasion resistant inorganic paint and preparation method of its binder

An inorganic coating, wear-resistant technology, applied in the direction of coating, etc., to achieve the effect of easy curing and easy storage

Inactive Publication Date: 2006-08-23
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] But at present, no inorganic phosphate is used as a binder at home and abroad, and Al 2 o 3 , related reports on metal-based inorganic coatings with SiC ceramic materials as aggregates, which have high temperature resistance, corrosion resistance and wear resistance, and can be cured at room temperature

Method used

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  • High temperature resistant abrasion resistant inorganic paint and preparation method of its binder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 85% mass percent concentration H 3 PO 4 The solution takes 55 grams; Al(OH) 3 Take 18 grams and 27 grams of water, mix and dilute the phosphoric acid solution with water, heat to 130°C, then add Al(OH) 3 After the reaction is complete, add 0.4 g of chromium oxide to adjust the pH of the solution to 3.6, and add water to adjust the density of the solution to 1.25 g / cm 3 After cooling, the required aluminum dihydrogen phosphate binder can be obtained. Aluminum dihydrogen phosphate content is 54%

[0044] Take respectively: 40 grams of aluminum dihydrogen phosphate binder, 18 grams of aluminum oxide, 27 grams of silicon carbide, and 15 grams of curing agent (high alumina cement). Firstly mix aluminum oxide, silicon carbide and curing agent evenly, then add aluminum dihydrogen phosphate binder and mix evenly.

[0045] The performance of the coating example 1 of the present invention is as follows: the coating is applied on a metal substrate, and its physical properties...

Embodiment 2

[0047] 80% mass percent concentration H 3 PO 4 Take 50 grams of the solution; Al(OH) 3 Take 20 grams and 30 grams of water, mix and dilute the phosphoric acid solution with water, heat to 140°C, then add Al(OH) 3 After the reaction is complete, add 0.8 g of chromium oxide to adjust the pH of the solution to 3.6, and add water to adjust the solution density to 1.4 g / cm 3 After cooling, the required aluminum dihydrogen phosphate binder can be obtained. Aluminum dihydrogen phosphate content is 58%.

[0048] Take respectively: 30 grams of aluminum dihydrogen phosphate binder, 20 grams of aluminum oxide, 30 grams of silicon carbide, and 20 grams of curing agent (high alumina cement). Firstly mix aluminum oxide, silicon carbide and curing agent evenly, then add aluminum dihydrogen phosphate binder and mix evenly.

Embodiment 3

[0050] 90% mass percent concentration H 3 PO 4 The solution takes 60 grams; Al(OH) 3 Take 20 grams, take 20 grams of water, mix and dilute the phosphoric acid solution with water, heat to 120°C, then add Al(OH) 3 After the reaction is complete, add 0.8 g of chromium oxide? Adjust the pH of the solution to 3.2? , add water to adjust the solution density to 1.62g / cm 3After cooling, the required aluminum dihydrogen phosphate binder can be obtained. The aluminum dihydrogen phosphate content is 58.4%.

[0051] Take respectively: 30 grams of aluminum dihydrogen phosphate binder, 30 grams of aluminum oxide, 30 grams of silicon carbide, and 10 grams of curing agent (high alumina cement). First mix aluminum oxide, silicon carbide and curing agent evenly, then add aluminum dihydrogen phosphate binder, in addition, add 0.4 g of defoamer tributyl phosphate; 0.8 g of dispersant sodium hexametaphosphate; Leveling agent organosiloxane 0.2 g. Mix well and serve.

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Abstract

A refractory antiwear inorganic paint is prepared from aluminium dihydrogen phosphate as adhesive, AIO3, SiC and solidifying agent. Its advantages are high adhesion high-temp resistance and wear-proof and ordinary-temp solidifying. A process for preparing said adhesive is also disclosed.

Description

technical field [0001] The invention relates to a special industrial coating applied on a metal substrate and a preparation method of the adhesive. Background technique [0002] Relevant technologies at home and abroad have been researched mainly from the following aspects: [0003] 1. Use organic binders such as epoxy resin, silicone, etc. to prepare heat-resistant and wear-resistant coatings, but because the binder is organic, the high temperature resistance is generally below 300 °C; [0004] 2. Prepare ceramic coatings with inorganic polymers and cement as binders; [0005] 3. Use the mixture of phosphate and water glass as the binder, and the prepared coating needs to be cured by heating or some coatings use organic solvents, and the aggregate contains metal oxides; [0006] But at present, no inorganic phosphate is used as a binder at home and abroad, and Al 2 o 3 , SiC ceramic materials as aggregates have high temperature resistance and anti-corrosion and wear res...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00
Inventor 何莉萍唐绍裘周武艺刘文超
Owner HUNAN UNIV