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Fluorin-containing POSS acrylate polymer, preparation method thereof and paint

An acrylate and copolymer technology, applied in the field of acrylate copolymer resin and its synthesis, can solve the problems of high cost, poor antifouling ability of coatings, complex process, etc., and achieve improved utilization rate, high antifouling ability, and simple process Effect

Inactive Publication Date: 2010-11-03
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of complex process, high cost and poor antifouling ability of coatings in the prior art, the present invention provides a fluorine-containing POSS acrylate copolymer, wherein the fluorine-containing POSS acrylate block copolymer resin It has a structure shown by M'—M—M', wherein M' is a structural unit shown in formula 1; M is a random copolymerization unit containing formula 2 and formula 3, and the fluorine-containing POSS is a fluorine-containing polyhedron Oligomeric silsesquioxane;

Method used

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  • Fluorin-containing POSS acrylate polymer, preparation method thereof and paint
  • Fluorin-containing POSS acrylate polymer, preparation method thereof and paint
  • Fluorin-containing POSS acrylate polymer, preparation method thereof and paint

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preparation example Construction

[0042] The present invention also provides a kind of preparation method of fluorine-containing POSS acrylate copolymer, comprises the following steps:

[0043] (a) contact the polymerizable monomer with the initiator, and carry out the polymerization reaction under the protection of nitrogen. The monomers of the structures shown in formula 6 and formula 7 are contained in the polymerizable monomer, and the product obtained after the polymerization reaction is completed is denoted as A;

[0044] (b) Add mixture B to A, which contains fluorine-containing acrylate monomer and fluorine-containing solvent shown in formula 5, and obtains fluorine-containing POSS acrylate copolymer by free radical polymerization;

[0045]

[0046] Formula 5 Formula 6 Formula 7

[0047] Among them, R 2 , R 3 , R 4 Each independently is H, C 1 -C 5 straight-chain or branched-chain alkyl;

[0048] X = -OCH 2 (CH 2 ) m CH 2 (CF 2 ) n CF 3 ;

[0049] Y = -COOH, -OH or

[0050] j and n ...

Embodiment 1

[0079] This embodiment is used to illustrate the fluorine-containing POSS acrylate copolymer provided by the present invention and its preparation method.

[0080] (1) After the dry 250ml four-necked flask was equipped with mechanical stirring and a reflux condenser, nitrogen gas was passed for 10 minutes; 16.5g of polymerizable monomers (including 10.5g of methyl methacrylate and 2g of acrylic acid) were added to the four-necked flask. Isobutyl ester, 1g hydroxyethyl acrylate, 3g POSS acrylate (k=5, R in formula 7 4 =-CH 3 , R=-C in Formula 9 4 h 9 ), 0.3g initiator AIBN and 30g. solvent toluene; vigorously stirred, under the protection of nitrogen, reacted at 85°C for 3h;

[0081] (2) Then, in the reaction system of step (1), slowly dropwise add 3.875g fluorine-containing acrylate (20% by mass perfluorooctyl ethyl acrylate), 0.18g initiator AIBN and 5g solvent toluene, 10g containing Fluorine solvent FHT-6500, the dropping time is 50 minutes, and the reaction is continue...

Embodiment 2

[0083] This embodiment is used to illustrate the fluorine-containing POSS acrylate copolymer provided by the present invention and its preparation method.

[0084] Adopt the method identical with embodiment 1 to prepare fluorine-containing POSS acrylate copolymer, difference is: in step (1), only contain 2g hydroxyethyl acrylate, 4g POSS acrylate (in formula 7) in the polymerizable monomer k=5, R 4 =-CH 3 , R=-C in Formula 9 4 h 9 ), i=5, Y=-CH 3 ), 0.2g initiator AIBN and 15g. solvent toluene; in step (2), slowly add 6g fluorine-containing acrylate (50 mass % perfluorooctyl ethyl acrylate), 0.24g initiator AIBN and 5g solvent toluene , 15g fluorine-containing solvent FHT-6500; finally obtained fluorine-containing POSS acrylate copolymer, denoted as A2.

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Abstract

The invention provides a fluorin-containing POSS acrylate polymer. The fluorin-containing POSS acrylate segmented polymer resin has a structure shown by M'-M-M', wherein the M' is a fluorin-containing acrylate structure unit; and M is an irregular polymerization unit containing active group acrylate and POSS acrylate, and the fluorin-containing POSS is fluorin-containing polyhedral oligomeric silsesquioxane. The invention also provides a method for preparing the fluorin-containg POSS acrylate polymer and a paint containing the fluorin-containing POSS acrylate polymer. The preparation method adopts the POSS acrylate monomer with lower cost and fluorin-containing acrylate monomers to prepare the fluorin-containing POSS acrylate polymer with fluorin-containing acrylate structure units distributed on the two ends of the polymer by controlling the adding sequence of the fluorin-containing acrylate monomers, and has the advantages of simple process and low cost; and the prepared paint has low surface energy and high fouling resistance.

Description

【Technical field】 [0001] The invention relates to an acrylate copolymer resin and a synthesis method thereof, in particular to an organic-inorganic hybrid nano-cluster fluorine-containing cage silsesquioxane-substituted (meth)acrylate copolymer. 【Background technique】 [0002] In order to improve hardness, scratch resistance, and obtain transparent scratch-resistant antifouling coatings, SiO 2 、TiO 2 Common methods for introducing inorganic substances into fluorinated acrylate polymers include: direct blending method, sol-gel method and in-situ polymerization method. Polyhedral oligomeric silsesquioxane acrylates are a class of organosilicon compounds with a special molecular structure shown in formula 7, [0003] [0004] The POSS group has a structure shown in formula 9, in which the core of the inorganic silicon-oxygen skeleton provides good inorganic properties for the material, and the peripheral organic group R can enhance the compatibility with the polymer matrix...

Claims

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Application Information

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IPC IPC(8): C08F220/10C08F220/22C09D133/08C09D133/16
Inventor 冷世伟胡文吴平
Owner BYD CO LTD
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