Organosilicon coating agent and preparation method thereof

A technology of silicone coating and formula, applied in the direction of coating, etc., can solve the problems of waste, difficult adhesion of small advertisements, high material cost, etc., and achieve long-lasting anti-adhesive effect, excellent anti-adhesive effect, and strong anti-oxidation ability Effect

Inactive Publication Date: 2017-02-15
湖北新四海化工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These small advertisements have strong adhesiveness and are difficult to tear off, and the "graffiti" is difficult to remove. They become urban "psoriasis" and seriously affect the appearance of the city.
At present, oily substances are generally used on the surface at home and abroad to prevent various small advertisements and scribbles. Once the rain washes or dust falls, the anti-sticking effect will disappear immediately, and the effect will generally not exceed one month, resulting in great waste.
In addition, there are patents disclosing anti-sticking coatings made of organic resins and various waxes. Due to the limitations of the material itself, the anti-sticking performance and anti-graffiti effect are not ideal.
However, the anti-sticking coating prepared by fluorocarbon paint is complicated to prepare, and the material cost is high, which is not conducive to popularization and use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The organosilicon coating agent of the present embodiment, its raw material formula is as follows:

[0041] Dihydroxypolydimethylsiloxane 20kg

[0042] Methyltriethoxysilane 2kg

[0043] Aminopropyltrimethoxy 0.5kg

[0044] MQ silicone resin 1kg

[0045] February dibutyltin silicate 0.5kg

[0046] Tetraisopropyl titanate 0.5kg

[0047] No. 120 petroleum ether 55kg

[0048] UV-9 0.02kg.

[0049] The preparation process is as follows:

[0050] S1, first add No. 120 petroleum ether into a sealed and stirred container, start stirring, then add dihydroxypolydimethylsiloxane, stir to dissolve;

[0051] S2, then add MQ silicone resin, methyltriethoxysilane, aminopropyltrimethoxy and UV-9, and mix well;

[0052] S3, add dibutyltin dilaurate and tetraisopropyl titanate, stir for 1 hour;

[0053] S4, seal and stand at 20-30° C. for 4 hours to prepare the silicone coating agent.

Embodiment 2

[0055] The organosilicon coating agent of the present embodiment, its raw material formula is as follows:

[0056] Dihydroxypolydimethylsiloxane 28kg

[0057] Hydroxyl-terminated methyltrifluoropropylsiloxane-dimethylsiloxane copolymer 2kg

[0058] Methyltriacetoxysilane 3kg

[0059] MQ silicone resin 4kg

[0060] February dibutyltin silicate 0.5kg

[0061] Tetrabutyl titanate 0.5kg

[0062] No. 120 petroleum ether 56.5kg

[0063] UV-328 0.06kg.

[0064] The preparation process is as follows:

[0065] S1, first add No. 120 petroleum ether into a sealed and stirred container, start stirring, then add dihydroxypolydimethylsiloxane and hydroxyl-terminated methyltrifluoropropylsiloxane-dimethylsiloxane alkane copolymer, stirring and dissolving;

[0066] S2, then add MQ silicone resin, methyltriacetoxysilane and UV-328, and mix well;

[0067] S3, adding dibutyltin dilaurate and tetrabutyl titanate, stirring for 1 hour;

[0068] S4, seal and stand at 20-30° C. for 4 hours ...

Embodiment 3

[0070] The organosilicon coating agent of the present embodiment, its raw material formula is as follows:

[0071] Dihydroxypolydimethylsiloxane 30kg

[0072] Hydroxyl-terminated methyltrifluoropropylsiloxane-dimethylsiloxane copolymer 2kg

[0073] Methyltrimethoxysilane 4kg

[0074] Aminopropylmethyldimethoxysilane 2kg

[0075]MQ silicone resin 5kg

[0076] Stannous acetate 0.5kg

[0077] Tetraisopropyl titanate 1kg

[0078] Cyclohexane 57.5kg

[0079] UV-531 0.08kg.

[0080] The preparation process is as follows:

[0081] S1, first add cyclohexane into a sealed and stirred container, start stirring, then add dihydroxypolydimethylsiloxane and hydroxyl-terminated methyltrifluoropropylsiloxane-dimethylsiloxane Copolymer, stir to dissolve;

[0082] S2, then add MQ silicone resin, methyltrimethoxysilane, aminopropylmethyldimethoxysilane and UV-531, and mix well;

[0083] S3, adding stannous acetate and tetraisopropyl titanate, stirring for 1 hour;

[0084] S4, seal and...

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PUM

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Abstract

The invention provides an organosilicon coating agent and a preparation method thereof. According to the invention, an organosilicon material is used as a basic raw material which is allowed to have a film forming function through a normal-temperature chemical reaction; an organosilicon material film is allowed to be firmly bonded with the surface of an object in virtue of the action of an adhesion promoter and a diluent, so the effect of long-lasting anti-adhesion effect is obtained; meanwhile, the organosilicon coating agent provided by the invention has good ultraviolet resistance and antioxidation capability and is suitable for brush coating of an external surface. The organosilicon coating agent can be applied onto the surfaces of decorative coatings and exterior coatings; after curing, the organosilicon coating agent has good adhesion, is hard to fall, enables the surfaces of the coatings to be bright and smooth and shows excellent anti-adhesion effect; with the organosilicon coating agent, advertisement labels cannot be firmly bonded on the surfaces of the coatings and can be easily taken off, and marks written on the surfaces of the coatings by marking pens can be directly erased without solvent or water; and the organosilicon coating agent has long-lasting anti-adhesion effect and presents good anti-adhesion effect after having been coated on the surfaces for one year.

Description

technical field [0001] The invention relates to the technical field of organic silicon coatings, in particular to an organic silicon coating agent and a preparation method thereof. Background technique [0002] On city streets, guardrails, bridges, and exterior walls, various small advertisements and graffiti continue to appear. These small advertisements have strong adhesiveness and are difficult to tear off, and the "graffiti" is difficult to remove. They become urban "psoriasis" and seriously affect the appearance of the city. At present, oily substances are generally used on the surface at home and abroad to prevent various small advertisements and scribbles. Once the rain washes or dust falls, the anti-sticking effect will disappear immediately, and the effect will generally not exceed one month, resulting in great waste. . In addition, there are patents disclosing anti-sticking coatings made of organic resins and various waxes. Due to the limitations of the material ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/06C09D183/08C09D183/04C09D133/00C09D7/00C09D7/12
CPCC09D183/06C08L2201/08C08L2205/02C08L2205/03C08L2205/035C08L83/08C08L83/04C08L33/00C08K5/544
Inventor 陈华杨开柱
Owner 湖北新四海化工股份有限公司
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