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Low-surface-energy brush-type organic silicon molecule, preparation thereof and application thereof in coatings

A low surface energy, silicone technology, applied in coatings, epoxy resin coatings, biocide-containing paints, etc., to achieve wide application, considerable economic and social benefits, and the effect of reducing the surface energy of coatings

Inactive Publication Date: 2018-12-11
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in order to achieve the low adhesion function of the coating, the structural design and low surface energy modification of various subdivided resins will pose a series of challenges to research, development, and finalized industrial production processes and equipment.

Method used

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  • Low-surface-energy brush-type organic silicon molecule, preparation thereof and application thereof in coatings
  • Low-surface-energy brush-type organic silicon molecule, preparation thereof and application thereof in coatings
  • Low-surface-energy brush-type organic silicon molecule, preparation thereof and application thereof in coatings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] In the presence of solvent and catalyst, hydrogen-containing silicone oil and polyether containing propylene oxide chain (PO) and ethylene oxide chain (EO) were prepared by hydrosilylation reaction to obtain low surface energy brush-shaped silicone molecules.

[0050] Wherein the solvent is toluene, the catalyst is chloroplatinic acid, and the structural formula of the polyether containing propylene oxide chain (PO) and ethylene oxide chain (EO) is CH 2 =CHCH 2 O[CH 2 CH2 O] 10 [(CH 3 )CHCH 2 O] 2 CH 3 , the hydrogen content of hydrogen-containing silicone oil is 0.01-0.5%;

[0051] The molar ratio of the carbon-carbon double bond in the polyether containing propylene oxide chain (PO) and ethylene oxide chain (EO) to the silicon-hydrogen bond in the hydrogen-containing silicone oil is 1, and the amount of the catalyst is the hydrogen-containing silicone oil and the hydrogen-containing silicone oil containing 1% of the mass of the polyether of propylene oxide chai...

Embodiment 2

[0055] In the presence of solvent and catalyst, hydrogen-containing silicone oil and polyether containing propylene oxide chain (PO) and ethylene oxide chain (EO) were prepared by hydrosilylation reaction to obtain low surface energy brush-shaped silicone molecules.

[0056] Wherein the solvent is toluene, the catalyst is chloroplatinic acid, and the structural formula of the polyether containing propylene oxide chain (PO) and ethylene oxide chain (EO) is CH 2 =CHCH 2 O[CH 2 CH 2 O] 5 [(CH 3 )CHCH 2 O] 15 CH 3 , the hydrogen content of hydrogen-containing silicone oil is 0.01-0.5%;

[0057] The molar ratio of the carbon-carbon double bond in the polyether containing propylene oxide chain (PO) and ethylene oxide chain (EO) to the silicon-hydrogen bond in the hydrogen-containing silicone oil is 1, and the amount of the catalyst is the hydrogen-containing silicone oil and the hydrogen-containing silicone oil containing 0.1% of the mass of the polyether of propylene oxide ...

Embodiment 3

[0061] In the presence of solvent and catalyst, hydrogen-containing silicone oil and polyether containing propylene oxide chain (PO) and ethylene oxide chain (EO) were prepared by hydrosilylation reaction to obtain low surface energy brush-shaped silicone molecules.

[0062] Wherein the solvent is toluene, the catalyst is chloroplatinic acid, and the structural formula of the polyether containing propylene oxide chain (PO) and ethylene oxide chain (EO) is CH 2 =CHCH 2 O[CH 2 CH 2 O] 15 [(CH 3 )CHCH 2 O] 2 CH 3 , the hydrogen content of hydrogen-containing silicone oil is 0.01-0.5%;

[0063] The molar ratio of the carbon-carbon double bond in the polyether containing propylene oxide chain (PO) and ethylene oxide chain (EO) to the silicon-hydrogen bond in the hydrogen-containing silicone oil is 1, and the amount of the catalyst is the hydrogen-containing silicone oil and the hydrogen-containing silicone oil containing 0.1% of the mass of the polyether of propylene oxide ...

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Abstract

The invention belongs to the field of high-molecular functional materials, and discloses a low-surface-energy brush-type organic silicon molecule, a preparation method thereof and application thereofin coatings. A brush-type organic silicon molecule main chain polyorganosiloxane chain segment can provide low surface energy required by anti-adhesion performance, and the organic silicon molecule has higher compatibility with various industrial general resin such as acrylic ester, polyurethane, polyester and epoxy resin in the presence of a side-chain alkyl chain. Moreover, the organic silicon molecule can be realized in water solubility, and can be applied to a universal aqueous coating system by adjusting the hydrophilic property of a side chain. Through addition of a small quantity of thebrush-type organic silicon molecule into the coatings of acrylic resin, polyurethane, polyester, epoxy resin and the like, the surface energy of the coatings can be reduced, the coatings are endowedwith remarkable antifouling and low-viscosity functions, and meanwhile the coatings have smooth hand feel. A universal coating material is wide in application range, so that the organic silicon molecule has a wide application prospect and considerable economical and social benefits.

Description

technical field [0001] The invention belongs to the field of macromolecule functional materials, and in particular relates to a low surface energy brush-shaped organosilicon molecule, its preparation method and its application in coating. Background technique [0002] Low-adhesion coatings show good application prospects in anti-graffiti, anti-fingerprint, anti-fouling self-cleaning, anti-microbial adhesion, anti-blocking of pipelines, anti-icing, anti-fog, and liquid condensation collection. Biomimetic anti-adhesion materials such as lotus leaf and nepenthes have become research hotspots in the academic field in recent years, but the complexity, limited stability and environmental adaptability of biomimetic materials have long restricted the development of these low-adhesion materials. Technology transfer and related product development. [0003] Relatively speaking, low surface energy polymer coating materials have significant advantages such as low cost, simple preparati...

Claims

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Application Information

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IPC IPC(8): C08G77/46C08G18/62C08G18/58C08G18/42C08G18/73C09D175/04C09D175/06C09D133/00C09D163/00C09D183/12C09D5/16
CPCC08G18/42C08G18/58C08G18/6225C08G18/73C08G77/46C08L2201/10C08L2205/03C09D5/1675C09D133/00C09D163/00C09D175/04C09D175/06C08L83/12C08L61/20
Inventor 吴旭肖创洪王正平徐秀彬于丹凤刘敏换陈睿黄健嘉黄钟全叶培聪吴锦栋张素霞
Owner GUANGZHOU UNIVERSITY