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Comb type acrylic resin of lateral chain grafting polyester resin and preparation method and application thereof

A technology of acrylic resin and polyester resin, which is applied in the direction of biocide-containing paints, coatings, antifouling/underwater coatings, etc. It can solve the problems of comb-type acrylic resins that have not been seen, and achieve the purpose of prolonging the antifouling effect, The effect of high mechanical strength and good degradability

Inactive Publication Date: 2012-07-04
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on the application of degradable polymers with good mechanical properties in self-polishing antifouling coatings
But there is no report of comb-type acrylic resin with side chain grafted polyester resin

Method used

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  • Comb type acrylic resin of lateral chain grafting polyester resin and preparation method and application thereof
  • Comb type acrylic resin of lateral chain grafting polyester resin and preparation method and application thereof
  • Comb type acrylic resin of lateral chain grafting polyester resin and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] a. Preparation of hydroxyacrylic resin

[0026] When preparing, first add 125g of xylene and 130g of butyl acetate into a 500ml four-neck flask, stir and heat to 90°C, then add 32g of methyl acrylate, 25g of n-butyl acrylate, 24g of ethyl methacrylate, n-methacrylate A mixture of 26 g of butyl ester, 7 g of hydroxyethyl acrylate, 1.8 g of azobisisobutyronitrile, and 1.5 g of dodecanethiol was added dropwise into a four-neck flask, added dropwise for 1 hour, and kept warm for 6 hours.

[0027] b. Preparation of polycaprolactone

[0028] 1 g of stannous chloride, 4 g of 1,4-butanediol, and 128 g of monomer ε-caprolactone were heated up to 170°C, mechanically stirred, and nitrogen was blown, and reacted for 10 h. After the reaction, the product was dissolved with dichloromethane and precipitated with methanol. The purified product was dried in an oven at 50° C. for 24 h to obtain the polycaprolactone prepolymer used in the present invention.

[0029] Above-mentioned cat...

Embodiment 2

[0034] a. Preparation of hydroxyacrylic resin

[0035] When preparing, first add 110g of xylene and 140g of butyl acetate into a 500ml four-neck flask, stir and heat to 90°C, then add 28g of methyl acrylate, 30g of n-butyl acrylate, 20g of ethyl methacrylate, n-methacrylate A mixture of 36 g of butyl ester, 8 g of hydroxyethyl acrylate, 2.0 g of azobisisobutyronitrile, and 2.0 g of dodecanethiol was added dropwise into a four-neck flask, added dropwise for 1 hour, and kept warm for 6 hours.

[0036] b. Preparation of polycaprolactone

[0037] 0.8g of stannous chloride, 2.6g of 1,4-butanediol, and 119g of monomer ε-caprolactone were heated up to 170°C, stirred mechanically, and reacted with nitrogen for 10h. After the reaction, the product was dissolved with dichloromethane and precipitated with methanol. The purified product was dried in an oven at 50° C. for 24 h to obtain the polycaprolactone prepolymer used in the present invention.

[0038] Above-mentioned catalyst can ...

Embodiment 3

[0043] a. Preparation of comb-type acrylic resin coating with side chain grafted polyester resin

[0044] The marine antifouling paint is composed of resin, plasticizer, filler and antifouling agent, and their weight percent ranges are 20-50, 1-15, 10-40 and 5-30 respectively. The resin solution is a comb-type acrylic resin solution of a side chain grafted polyester resin with a concentration of 25 to 55% by weight, and the solvent is petroleum ether, methyl acetone, ethyl acetate, butyl acetate, ethyl acetate, butylacetate ester, toluene, xylene butanol or a mixture of several in any proportion; the plasticizer is vaseline, chlorinated paraffin, adipate dicaprylic acid, dibutyl phthalate or dibutyl phthalate Octyl ester; the filler is one or more mixtures in arbitrary proportions in red iron oxide, calcium carbonate, natural diatomaceous earth, talcum powder, titanium dioxide, fumed silica solid particles or zinc oxide; The staining agent is one or several mixtures of copper...

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Abstract

The invention introduces comb type acrylic resin of lateral chain grafting polyester resin and a preparation method and application thereof. The value is homopolymer or copolymer with hydroxylated acrylic resin as a main chain, aliphatic polyester segmer as a lateral chain and polyester as inner ester and cyclic diester. The comb type acrylic resin of lateral chain grafting polyester resin can be used for preparing ocean antifouling paint. The antifouling paint is composed of the following components by weight 25 to 60 portions of comb type acrylic resin object solution of lateral chain grafting decomposable polyester resin, 1 to 20 portions of plasticizers, 1 to 30 portions of fillers and 1 to 40 portions of anti-fouling agents. The resin has the advantages of being high in mechanical b, having decomposable lateral chains and adjustable in decomposing speed, is applied to self-polishing anti-fouling coating, enables ships to have better polishing effect in traveling state and stopping state, achieves effective, stable and continuous releasing of anti-fouling agents, thereby prolonging anti-fouling efficacy, reducing dock repairing times and having potential economical and military benefits.

Description

technical field [0001] The invention relates to a chemical material technology, in particular to a comb-shaped acrylic resin with side chain grafted polyester resin, its preparation method and application. Background technique [0002] Since humans engaged in marine activities, seawater corrosion and marine biofouling have become two bottlenecks restricting the development and utilization of marine resources. After seawater erosion or marine organisms attach, the surface friction of the hull increases significantly, the water inlet pipeline is blocked, and the valve joints are fouled, which in turn leads to a decrease in ship speed, increased fuel consumption, and increased times of docking maintenance. In order to reduce the harm of marine organisms and prevent marine organisms from fouling ships and offshore facilities, people have studied many antifouling technologies for a long time. In these antifouling methods, antifouling coatings are applied to equipment in marine en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G81/02C08G63/91C08G63/08C08F220/14C08F220/18C08F220/28C09D187/00C09D7/12C09D5/16
Inventor 胡晶黄从树王晶晶任润桃
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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