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Antifouling system comprising silicone hydrogel

A system, anti-fouling technology, applied in the direction of biocide-containing paint, anti-fouling/underwater coatings, adhesives, etc., can solve the problem of low use efficiency of amino silicone resin

Active Publication Date: 2016-01-06
MOMENTIVE PERFORMANCE MATERIALS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, aminosilicones used for bonding are not used efficiently

Method used

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  • Antifouling system comprising silicone hydrogel
  • Antifouling system comprising silicone hydrogel
  • Antifouling system comprising silicone hydrogel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0125] Example 1. Synthesis of SiPEG

[0126] Will 217g have the nominal structure H MD 10 m H The hydride-terminated α, ω-(SiH) polydimethylsiloxane, 36.8g vinyltrimethoxysilane, 420g toluene and 0.13g chlorotris(triphenylphosphine)rhodium(I) were added to the equipment have N 2 Inlet, condenser and thermometer in a three-neck round bottom flask. put the solution in N 2 Mix under atmosphere for 30 minutes, then heat to 80° C. for 12 hours to give a light yellow solution.

[0127] Add 120 g of the solution to a 2 Inlet, condenser and thermometer in another three-neck round bottom flask. The reaction flask was further charged with 20.8 g of polyethylene glycol monoallyl ether (8 oxirane groups), 24 g of toluene and 0.125 g of Karstedt's catalyst in isopropanol (1% of Pt). put the solution in N 2 Mix for 30 minutes, then heat to 100°C for 2 hours. The resulting solution contained 40% SiPEG with the following chemical structure:

[0128]

Embodiment 2

[0129] Example 2. Synthesis of Hybrid Adhesion Promoters.

[0130] Before use, 10.14 g of Epilote 828 (from Momentive Specialty Chemicals), 42 g of toluene, and 32 g of SF1706 from Momentive Performance Materials (dimethoxysilyl-terminated and amine-grafted curable aminosilicone) were added to a beaker and cooled at ambient Mix for 4 hours.

Embodiment 3

[0131] Embodiment 3. Preparation of epoxy coating paint

[0132] Epoxide-containing Epon 828 (from Momentive Specialty Chemicals) mixed with amine (Epikure 3292-FX-60 from Momentive Specialty Chemicals), and in some cases the adhesion promoter of Example 2, was cured under ambient conditions. According to the formula of Table 1, feed intake is added in the plastic container.

[0133] Table 1

[0134]

[0135] Epikure 3292-FX-60

[0136] Mixing was done using SpeedMixerDAC150 from FlackTech company. Once the coating was cured, when the mixed adhesion promoter was included in Example 3B, the water contact angle increased from 70° for the standard epoxy (Example 3A) to 92°, indicating the presence of silicone moieties on the coating surface.

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Abstract

A multi-layer or single layer antifouling coating system. A multi-layer coating system comprises (a) a base coating for coating a substrate, and (b) an antifouling coating composition adapted to be disposed over the base coating, the antifouling coating composition comprising a hydroxyl terminated polydimethylsiloxane, a curable polyether-containing silane. The base coating composition can comprise an epoxy modified adhesion promoter. The respective compositions are such that the antifouling coating composition sufficiently adheres to the base coating composition without the need for a tie coat layer.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Patent Application No. 61 / 765,450, entitled "Antifouling Systems Containing Silicone Hydrogels," filed February 15, 2013, which is incorporated herein by reference in its entirety. technical field [0003] The present technology provides antifouling coating compositions, coating systems comprising such antifouling compositions, and articles comprising such coating systems. The antifouling compositions and coating systems can be utilized on articles exposed to aquatic or marine environments and can provide antifouling properties to the articles. Background technique [0004] Biofouling or biofouling is the unwanted accumulation of microorganisms, algae, plants and animals on wetted surfaces. Aqueous liquids are found in contact with other materials in almost all environments. The specific and nonspecific interactions of proteins and cells with artificial surfaces f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/16
CPCC09D5/1637C09D183/08C09D183/12C08G77/14C08G77/26C08G77/46C08G59/3281C09D5/1693C09D163/00Y10T428/31511Y10T428/31663C08K5/544C09D183/04C09D183/06C08G77/04C08G77/08C09J183/04
Inventor 廖文榜
Owner MOMENTIVE PERFORMANCE MATERIALS INC