Oligomer compound, hydrophobic composition, preparation method of the oligomer compound, and use of the oligomer compound and the hydrophobic composition

A compound and composition technology, applied in oligomer compounds, hydrophobic compositions and their preparation and application fields, can solve the problem of unsuitable large-area hydrophobic surfaces and coatings, complex equipment or high-temperature calcination, and superhydrophobicity reduction And other problems, to achieve a significant effect of scrub resistance, improve the effect of waterproof and water-proof performance

Active Publication Date: 2013-02-27
鹤山市顺鑫实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, many methods are not suitable for the preparation of large-area hydrophobic surfaces and coatings. These technologies still have defects such as the need to use complex equipment or high-temperature calcination, which restricts the application of such superhydrophobic coatings in the fields of exterior wall coatings and industrial coatings.
On the other hand, prolonged light exposure and accumulation of pollutants can lead to the reduction of superhydrophobicity, which is another key issue affecting its application.
In addition, the existing super-hydrophobic self-cleaning coating is adsorbed on the surface of the object by physical adsorption, the adhesion is not strong, and it is easy to hang or wear, resulting in low fastness, which seriously limits its popularization and application.

Method used

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  • Oligomer compound, hydrophobic composition, preparation method of the oligomer compound, and use of the oligomer compound and the hydrophobic composition
  • Oligomer compound, hydrophobic composition, preparation method of the oligomer compound, and use of the oligomer compound and the hydrophobic composition
  • Oligomer compound, hydrophobic composition, preparation method of the oligomer compound, and use of the oligomer compound and the hydrophobic composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1 Preparation of hydrophobic prepolymer compound

[0042]Dissolve 20 grams of ethyl orthosilicate in 150 grams of ethanol, add 1 gram of concentrated hydrochloric acid under full stirring, then add 10 grams of water dropwise, react at 80°C for 8 hours, and then distill off the water. The residual amount of concentrated hydrochloric acid was analyzed by titration, 5 g of concentrated hydrochloric acid was added, then 25 g of methyltrimethoxysilane was added, and the reaction was carried out at a temperature of 40 ° C for 2 hours, and then 50 g of methyltrimethoxysilane and perfluorooctane were added. 20 g of trimethoxysilane, 5 g of dimethyl hydroxychlorosilane was added after the condensation reaction at 70 ° C for 2 hours, and the end capping reaction was carried out. The reaction temperature was 45 ° C and the time was 1 hour; after the end capping reaction, carbonic acid was added. 5 g of sodium hydrogen is neutralized to pH 7, the solvent is distilled, then ...

Embodiment 2

[0046] Example 2 Preparation of Hydrophobic Prepolymer Compounds

[0047] Dissolve 40 grams of ethyl orthosilicate in 200 grams of ethanol, add 1.5 grams of concentrated hydrochloric acid under full stirring, then add 15 grams of water dropwise, react at 80°C for 8 hours, and then distill off the water. To analyze the residual amount of concentrated hydrochloric acid by titration, add 5 grams of concentrated hydrochloric acid, then add 60 grams of methyltrimethoxysilane, and react for 2 hours at a temperature of 40 °C, then add 150 grams of methyltrimethoxysilane and perfluorooctane. 60 g of trimethoxysilane, 15 g of dimethylhydroxychlorosilane was added after the condensation reaction at 70 °C for 2 hours, and the end-capping reaction was carried out. The reaction temperature was 45 °C and the time was 1 hour; after the end-capping reaction, carbonic acid was added. 15 g of sodium hydrogen was neutralized to pH 7, the solvent was distilled, then the unreacted material was was...

Embodiment 3

[0051] Example 3 Preparation of Hydrophobic Prepolymer Compounds

[0052] Dissolve 20 grams of ethyl orthosilicate in 200 grams of ethanol, add 1.5 grams of concentrated hydrochloric acid under full stirring, then add 15 grams of water dropwise, react at 80°C for 8 hours, and then distill off the water. To analyze the residual amount of concentrated hydrochloric acid by titration, add 5 g of concentrated hydrochloric acid, then add 60 g of methyltrimethoxysilane, react for 2 hours at a temperature of 40 °C, then add 350 g of hexadecyltrimethoxysilane and all 70 grams of fluorodecyl trimethoxysilane, 15 grams of dimethylhydroxychlorosilane was added after the condensation reaction at 70 ° C for 2 hours, and the end capping reaction was carried out. The reaction temperature was 45 ° C and the time was 1 hour; after the end capping reaction Add 15 g of sodium bicarbonate to neutralize to pH 7, distill the solvent, wash the unreacted material with ethanol and then layer, remove th...

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Abstract

The invention discloses an oligomer compound, a hydrophobic composition, a preparation method of the oligomer compound, and a use of the oligomer compound and the hydrophobic composition. The oligomer compound has a structural formula shown in the formula I. The invention further discloses the hydrophobic composition composed of the oligomer compound shown in the formula I and a use of the hydrophobic composition in improvement of water-resistance and water-isolation or scrubbing-resistance of an object. The hydrophobic composition can be used in water-resistant and water-isolating or scrubbing-resistant treatment on glass, textile fabrics, building materials or electronic products. A textile fabric treated by the hydrophobic composition has washing resistance and acid and alkali resistance. The hydrophobic composition does not influence a fabric handle and softness and has obvious effects of water-resistance and water-isolation. The hydrophobic composition can be used for preparation of a waterproof layer in a building, and can also be used for water-resistance and water-isolation treatment on building materials and electronic products.

Description

technical field [0001] The present invention relates to an oligomer compound, in particular to an oligomer compound for preparing a hydrophobic coating, a hydrophobic composition mainly composed of the oligomer compound and a preparation method thereof, and the present invention further relates to the oligomer The utility model relates to an application of a bulk compound and a hydrophobic composition in improving the waterproof and water-repellent properties of an object or the surface scrub resistance, belonging to the field of preparation and application of a hydrophobic composition. Background technique [0002] The international research on superhydrophobic coatings began in the 1950s. By the end of the 1990s, with the development of surface technology, especially the improvement of surface research techniques, the superhydrophobicity was prepared by imitating its surface structure and properties. Coating films have attracted people's attention, and exploring the indust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/08C08G77/24C09D183/08
Inventor 马可
Owner 鹤山市顺鑫实业有限公司
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