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Epoxy resin modified organosilicon fire-resistant anticorrosion paint

A technology of epoxy resin and anti-corrosion coatings, which is applied in the direction of anti-corrosion coatings and coatings, and can solve the problems that no coatings have been used in anti-corrosion fields

Inactive Publication Date: 2007-12-05
BEIJING UNIV OF CHEM TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is no report that this coating is applied to the field of anticorrosion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) The preparation method of the organosilicon intermediate prepolymer: mix monomethyltriethoxysilane, dimethyldiethoxysilane, and monophenyltriethoxysilane with a mass ratio of 6:5:8 Mix the monomers, add the same quality of xylene as a solvent, use 0.1% HCl as a catalyst, add 70% of the fully hydrolyzed water at 70°C, stir, and react for 5 hours, then neutralize the reaction product, filter, By-products and part of the solvent were distilled off to obtain an intermediate prepolymer stable at room temperature.

[0031] (2) Use the intermediate prepolymer obtained in the above (1) and 50% solid content, epoxy resin (E-20 epoxy resin) with an epoxy value of 0.18-0.22 and a softening point of 64-78°C Reaction, mass ratio 1:1, temperature: 140°C, add 0.5% zinc naphthenate with a zinc value of 8%-9% as a curing accelerator for the modified resin, measure the gelation time to determine the termination time. The final product is an epoxy resin modified silicone resin, and a...

Embodiment 2

[0046] (1) The preparation method of the organosilicon intermediate prepolymer is the same as in Example 1.

[0047](2) The synthetic method of modified organosilicon resin is the same as embodiment 1, and the modified accelerator is changed into 0.5% cobalt naphthenate, and other conditions are constant

[0048] (3) Use the following formula to mix:

[0049] Modified silicone resin solution: 60g

[0050] Talc powder: 5g

[0051] Kaolin: 10g

[0052] Mica powder: 5g

[0053] Zinc phosphate: 10g

[0054] Titanium dioxide: 10g

[0055] Leveling agent 801A: 1g

[0056] Coupling agent KH-560: 0.5g;

[0057] Add 10g of polyamide liquid resin (650#) before use, and fully disperse with a high-speed disperser.

[0058] The above-mentioned paint was used to paint the model panel three times to obtain a paint film thickness of 120 μm. After curing at 150°C for 30 minutes, a smooth and hard coating film was obtained. The physical and mechanical properties of the coating film wer...

Embodiment 3

[0061] (1) The preparation method of the organosilicon intermediate prepolymer is the same as in Example 1.

[0062] (2) The synthetic method of modified silicone resin is the same as in Example 1,

[0063] (3) Use the following formula to mix:

[0064] Modified silicone resin solution: 50g

[0065] Kaolin: 10g

[0066] Mica powder: 10g

[0067] Molybdenum disulfide: 10g

[0068] Zinc phosphate: 18g

[0069] Leveling agent 801A: 1g

[0070] Coupling agent KH-560: 0.5g;

[0071] Add 10g of polyamide liquid resin (650# or similar products) before use, and fully disperse with a high-speed disperser.

[0072] The above-mentioned paint was used to paint the model panel three times to obtain a paint film thickness of 120 μm. After curing at 150°C for 30 minutes, a smooth and hard coating film was obtained. The physical and mechanical properties of the coating film were tested as follows:

[0073] project

[0074] 2. Viscosity (coat 4 cups)

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Abstract

The present invention relates to one kind of epoxy resin modified heat resistant anticorrosive organosilicon paint, which consists of two components, including one component A comprising epoxy resin modified organosilicon 30-40 wt%, pigment, stuffing and assistant 20-35 wt%, and solvent 25-50 wt%; and one component B of liquid polyamide resin in the amount of 7-20 wt% of the component A. Of the paint, the epoxy resin modified organosilicon is prepared with organosilicon pre-polymer and through modification with epoxy resin. The heating cured coating formed with the paint has excellent performances, including high structural stability, high heat resistance, high water tolerance, high organic solvent tolerance, high acid and alkali resistance, high weather resistance, etc. and is suitable for industrial application.

Description

technical field [0001] The invention relates to an epoxy resin modified silicone coating for high temperature resistance and anticorrosion. Background technique [0002] The molecular chains of traditional organic anti-corrosion coatings are quickly broken and decomposed at high temperatures, which leads to the failure of the coating film. However, many high-temperature and anti-corrosion coatings, such as organic fluorine, polyphenylene sulfide, polyaryl sulfone, polyimide, etc., are either too expensive or difficult to apply and harden, making it difficult to obtain a wide range of applications. Other inorganic high temperature resistant materials also have similar problems. Because of the stable silicon-oxygen bond energy, silicone materials have good weather resistance, heat resistance, gloss retention, acid rain resistance, etc., and are suitable for various indoor and outdoor applications. And because the side chain contains organic groups, it has the characteristics...

Claims

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Application Information

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IPC IPC(8): C09D183/00C09D5/08
Inventor 熊蓉春施彦斌魏刚
Owner BEIJING UNIV OF CHEM TECH
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