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A kind of degradable hyperbranched resin and its preparation method and application

A technology of hyperbranched resins and compounds, which can be used in biocide-containing paints, coatings, antifouling/underwater coatings, etc., and can solve the problem that the resin cannot be separated from the coating surface

Active Publication Date: 2020-07-28
广东海巍新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the implementation of the above technologies is based on the traditional linear polymer resin, which still cannot make the hydrolyzed resin detach from the coating surface in time to achieve controllable self-polishing, which is satisfactory for static anti-corrosion in areas with high fouling pressure. Pollution demand

Method used

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  • A kind of degradable hyperbranched resin and its preparation method and application
  • A kind of degradable hyperbranched resin and its preparation method and application
  • A kind of degradable hyperbranched resin and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0062] Under the condition of stirring, add 50g of xylene and 40g of butyl acetate into the reaction vessel, raise the temperature to 100°C under a nitrogen atmosphere, and add 40g of acryloyloxytriisopropylsilane (purchased from Bailingwei) dropwise at a constant speed within 5 hours Technology Co., Ltd.), 30g of polyorthoesters with a molecular weight of 600g / mol of vinyl at both ends, 30g of 2-methylene-1,3-dioxo-4,5-benzocyclopentane, 1g of azobis A mixture of isobutyronitrile, 8g bis(thiobenzoyl) disulfide and 10g butyl acetate, after the dropwise addition, was incubated for 2 hours, and then 2g benzoyl peroxide and 10g benzoyl peroxide were added dropwise at a constant speed within 30 minutes. xylene, and stirred for another 4 hours to obtain a degradable hyperbranched silicon-based self-polishing resin.

[0063] The number average molecular weight Mn of the degradable hyperbranched silicon-based self-polishing resin in this embodiment is 6.5×10 3 g / mol, the silicon con...

Embodiment 2

[0065] Under the condition of stirring, 70g of propylene glycol methyl ether and 10g of ethyl acetate were added to the reaction vessel, and the temperature was raised to 100°C under a nitrogen atmosphere, and 10g of acryloyloxy tert-butyldimethylsilane ( (purchased from U.S. Momentive Company), 10g hydroxyethyl methacrylate, 30g phenyl acrylate, 25g tert-butyl methacrylate, 20g 2-methylene-1,3-dioxetane (purchased in Shanghai Aladdin Biochemical Technology Co., Ltd., CAS: 69814-56-8), 5g diacrylamide containing hydrazone structure, 15g tert-butyl peroxy-2-ethylhexanoate, 0.5g tetrakis (3-mercaptopropionic acid) The mixture of quaternetritol ester and 10g propylene glycol methyl ether is formed, after the dropwise addition is completed, it is incubated for 2 hours, and then 1g of tert-butyl peroxy-2-ethylhexanoate and 10g of dimethylbenzene are added dropwise at a uniform speed within 30 minutes, and then Stir for 2 hours to obtain a degradable hyperbranched silicon-based self...

Embodiment 3

[0068] (1) Synthesis of vinyl zinc ester monomer:

[0069] Add 13.6g of zinc hydroxide, 50g of toluene and 15g of isobutanol into the reaction vessel, and heat it to 75°C, add a mixture of 9.9g of acrylic acid and 41.4g of abietic acid dropwise at a constant speed for 3 hours, after the dropwise addition, keep the temperature for 2 hours , the solvent is removed by rotary evaporation to obtain the vinyl zinc ester monomer;

[0070] (2) Synthesis of degradable hyperbranched zinc-based self-polishing resin:

[0071] Under the condition of stirring, add 50g of xylene and 40g of butyl acetate into the reaction vessel, raise the temperature to 100°C under nitrogen atmosphere, add 60g of vinyl zinc ester functional monomer, 10g of N,N'-bis (Acryloyl)cystamine, 30g 2-methylene-4,7-dimethyl-1,3-dioxepane, 3g azobisisobutyronitrile, 8g bis(thiobenzoyl) The mixture of disulfide and 10g butyl acetate, after the dropwise addition, was incubated for 2 hours, 2g of benzoyl peroxide and 10...

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Abstract

The present invention belongs to the field of marine antifouling material technology, discloses a degradable overbranched resin and methods and applications thereof. The degradable hyperbranched resin is prepared from the following components by weight: annular monomer 1 to 100 parts, vinyl antifouling function monomer 0 ~ 60 parts, bifunction monomer 0 ~ 60 parts, vinyl monomer 0 ~ 70 parts, initiator 1 ~ 20 parts, chain transfer agent 0.5 ~ 10 parts, organic solvent 50 ~ 150 parts. The present invention introduces bifunctional monomers and chain transfer agents in the polymerization process, the traditional straight-chain polymer antifouling resin is prepared into an overbranched structure and applied to the marine anti-fouling field for the first time. In addition, the resin also has the advantages of high solids content and low viscosity of hyperbranched polymers and the preparation method is simple and feasible, the cost is low, suitable for industrial production, and has good development prospects in the field of marine anti-fouling coatings.

Description

technical field [0001] The invention belongs to the technical field of marine antifouling materials, and in particular relates to a degradable hyperbranched resin and a preparation method and application thereof. Background technique [0002] The problem of marine biofouling will cause huge economic losses and potential safety hazards. Therefore, marine antifouling is a subject closely related to the major needs of the environment, energy, and national defense, and is of great significance. At present, the application of marine antifouling coatings is the most economical, convenient and common method to solve the problem of marine biofouling. The mainstream self-polishing resin technology is represented by polysilyl acrylate, zinc polyacrylate and copper polyacrylate resins, all of which are side chain hydrolyzed, and their performance has certain requirements on the stopping ratio and speed. In the static stage, it is difficult to achieve the ideal self-polishing effect on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00C09D5/16
CPCC08G83/005C09D5/1637C08L101/16C08F122/00C08L101/005C09D5/165C09D133/062C08F2/38C08F236/04C08F230/085C08F2/06C08F220/06C08F216/38C08F224/00
Inventor 张广照马春风潘健森谢庆宜
Owner 广东海巍新材料科技有限公司
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