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Methyl phenyl silicone resin base high-temperature-resistant coating and preparation method thereof

A technology of methylphenyl silicon and high-temperature resistant coatings, which is applied in anti-corrosion coatings, coatings, etc., can solve problems such as complex preparation processes, and achieve the effects of simple preparation processes, high mechanical strength, and low production costs

Inactive Publication Date: 2012-07-18
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN 10105496A discloses a production method of organosilicon heat-resistant coating, heating at 800°C for 10 minutes, the coating is intact, but the preparation process described in this method is complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Add 35 kg of methylphenyl silicone resin and 16 kg of xylene to the stirring sand mill disperser, and stir the resin to disperse evenly in the solvent. Add 25 kg of titanium dioxide, 10 kg of talcum powder, 12 kg of mica powder and 1 kg of organic bentonite to it, and stir to disperse for 4 h. Then add 1 kg of KH-550 and sand for 2 h, then filter to get the finished paint.

[0034] Apply the prepared paint on the stainless steel plate that has been degreased, derusted and treated with xylene in advance, and then paint the second coat after hard drying. The thickness of the coating film is controlled at about 50 μm. After the coating film is cured, the heat resistance, impact strength, adhesion test and corrosion resistance test are carried out. The results are shown in Table 1.

Embodiment 2

[0036] Add 35 kg of methylphenyl silicone resin and 16 kg of xylene into the stirring sand mill disperser, and stir the resin to disperse evenly in the solvent. Add 12 kg of titanium dioxide, 10 kg of talcum powder, 25 kg of mica powder and 1 kg of organic bentonite to it, and stir for 4 h to disperse. Then add 1 kg of KH-550 and sand for 2 h, then filter to get the finished paint.

[0037] Apply the prepared coating on the stainless steel plate that has been degreased, derusted and treated with xylene in advance, and then paint the second coat after it is dry, and the thickness of the coating film is controlled at about 50 μm. After the coating film is cured, the heat resistance, impact strength, adhesion test and corrosion resistance test are carried out. The results are shown in Table 1.

Embodiment 3

[0039] Add 35 kg of methylphenyl silicone resin and 16 kg of xylene to the stirring sand mill disperser, and stir the resin to disperse evenly in the solvent. Add 25 kg of low-melting point glass powder, 10 kg of titanium dioxide, 10 kg of talc powder, 12 kg of mica powder and 1 kg of organic bentonite to it, and stir to disperse for 4 h. Then add 1 kg of KH-550 and sand for 2 h, then filter to get the finished paint.

[0040] Apply the prepared coating on the stainless steel plate that has been degreased, derusted and treated with xylene in advance, and then paint the second coat after it is dry, and the thickness of the coating film is controlled at about 50 μm. After the coating film is cured, the heat resistance, impact strength, adhesion test and corrosion resistance test are carried out. The results are shown in Table 1.

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Abstract

The invention relates to methyl phenyl silicone resin base high-temperature-resistant coating and a preparation method thereof, which belong to the technical field of organic coating preparation. Methyl phenyl silicone resin serves as a base stock. The resin utilizes methyl trichlorosilane, dimethyldichlorosilance and methylphenyldichloros as hydrolysis raw materials and is prepared by processes of hydrolysis, polycondensation and the like. The preparation process is simple, the resin yield is high, and the pure resin itself has good high temperature resistance and low temperature resistance. The coating utilizes titanium dioxide as pigment, mica powder, talcum powder, low melting-point glass powder and hollow glass microspheres as fillers, organobentonite and KH-550 as auxiliaries and dimethylbenzene as solvent. Organosilicone high-temperature-resistant coating prepared by the preparation method is coated on the surface of a base material, is fast in air drying speed at normal temperature, tough in coating film and high in mechanical strength, can resist to the high temperature of 1000 DEG C for a long time, and has long salt fog resistance time. In addition, the impact strength of the high-temperature-resistant coating reaches above 50kg.cm.

Description

technical field [0001] The invention relates to an organosilicon high temperature resistant coating and a preparation method thereof, belonging to the technical field of organic coating preparation. In particular, it refers to the method of synthesizing a long-term 1000 ℃ high temperature and corrosion-resistant organic silicon coating in a solvent with methyl phenyl silicone resin as the base material, adding various pigments and fillers. technical background [0002] Organosilicon polymers are a class of new chemical products with many varieties, unique physical and chemical properties and a wide range of applications. Since the advent of industrial products in the 1940s, silicone polymers have developed rapidly. At present, various products based on various silane monomers, siloxane intermediates, and silicone oil, silicone rubber, and silicone resin prepared from them have been widely used in electronics, automobiles, textiles, construction, and cosmetics. , medical, c...

Claims

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Application Information

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IPC IPC(8): C09D183/04C09D5/08C09D7/12
Inventor 殷恒波姜逸倩柳艳君颜晓波葛超群马克超
Owner JIANGSU UNIV
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