High-fouling-resistant inorganic silicate coating prepared from fluorine-containing polymer and preparation method and application of coating

An inorganic silicate and antifouling technology, applied in antifouling/underwater coatings, coatings, paints containing biocide, etc., can solve the problem that phase separation materials cannot effectively function, performance cannot be effectively improved, and very It is difficult to add water-based coatings and other problems to achieve excellent hydrophobic properties, excellent weather resistance, and the effect of improving the contact angle of the coating surface

Active Publication Date: 2016-12-07
国科广化(南雄)新材料研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, fluorine-containing inorganic substances and organic fluorine small molecules have poor compatibility with resins. As time goes by, phase separation is prone to occur, resulting in the inability of the material to function effectively, and the performance cannot be effectively improved.
Fluoropolymers improve the compatibility with resins, but most of them are oil-soluble polymers, which are difficult to add to water-based coating systems

Method used

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  • High-fouling-resistant inorganic silicate coating prepared from fluorine-containing polymer and preparation method and application of coating
  • High-fouling-resistant inorganic silicate coating prepared from fluorine-containing polymer and preparation method and application of coating
  • High-fouling-resistant inorganic silicate coating prepared from fluorine-containing polymer and preparation method and application of coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Preparation of fluorine-containing side chain: 0.1kg azobisisobutyronitrile is joined in 50kg methyl ethyl ketone solvent, add reaction monomer 50kg hexafluorobutyl methacrylate and 50kg trifluoroethyl methacrylate, in React at 40° C. for 13 hours, then add 1 kg of mercaptoacetic acid as a chain transfer agent to prepare fluorine-containing side chains.

[0033] (2) Preparation of fluoropolymer: 1kg of azobisisobutyronitrile is added to 50kg of methyl ethyl ketone solvent, and then 10kg of reaction monomers, 10kg of acrylic acid, 25kg of (meth)acrylate, and 35kg of glycidyl methacrylate are added , reacted at 80°C for 8 hours. Then add the fluorine-containing side chain prepared in (1) into the reaction vessel, add 0.01 kg of catalyst hydrochloric acid, react at 30° C. for 5 hours, and then remove the solvent by rotary evaporation to obtain the fluorine-containing acrylate polymer. That is, fluoropolymers.

[0034] (3) Add 0.1kg of fluoropolymer to 10kg of water, ...

Embodiment 2

[0037] (1) Preparation of fluorine-containing side chains: Add 5kg of initiator azobisisoheptanonitrile to 50kg of solvent ethyl acetate, add 100kg of reaction monomer dodecafluoroheptyl methacrylate, and react at 50°C for 15 hours , Then add chain transfer agent 0.8kg mercaptoacetic acid, make fluorine-containing side chain.

[0038](2) Preparation of fluoropolymer: 0.5kg of initiator azobisisoheptanonitrile is added to 50kg of solvent ethyl acetate, then 15kg of reaction monomers acrylic acid, 10kg (meth)methyl acrylate, 5kg (Meth) isobutyl acrylate, 5 kg (meth) isooctyl acrylate, and 10 kg glycidyl methacrylate were reacted at 80° C. for 6 hours. Then add the fluorine-containing side chain prepared in (1) into the reaction vessel, add 0.2kg of catalyst sodium hydroxide, react at 90°C for 3 hours, and then remove the solvent by rotary evaporation to obtain the fluorine-containing acrylate polymer substances, namely fluoropolymers.

[0039] (3) Add 2kg of fluoropolymer to 5...

Embodiment 3

[0042] (1) Preparation of fluorine-containing side chains: 2kg initiator benzoyl peroxide, 2kg initiator lauroyl peroxide are added to 50kg solvent toluene, 30kg hexafluorobutyl methacrylate, 30kg methyl Dodecafluoroheptyl acrylate was reacted at 100° C. for 7 hours, and then 0.5 kg of chain transfer agent mercaptoacetic acid was added to prepare fluorine-containing side chains.

[0043] (2) Preparation of fluoropolymers: 0.6kg of initiator dicyclohexyl peroxydicarbonate is added to 50kg of solvent toluene, then 30kg of reaction monomers are added: acrylic acid, 35kg (meth)butyl acrylate, 20kg Glycidyl methacrylate was reacted at 40°C for 15 hours. Then add the fluorine-containing side chain prepared in (1) into the reaction vessel, add 0.4kg of catalyst 0.1mol / L hydrochloric acid, react at 100°C for 4 hours, and then remove the solvent by rotary evaporation to obtain fluorine-containing acrylic acid Ester polymers, ie fluoropolymers.

[0044] (3) Add 10kg of fluoropolymer t...

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Abstract

The invention belongs to the field of inorganic silicate coatings, and particularly relates to a high-fouling-resistant inorganic silicate coating prepared from a fluorine-containing polymer and a preparation method and application of the coating. The high-fouling-resistant inorganic silicate coating prepared from the fluorine-containing polymer is prepared from, by weight, 0.1-10 parts of fluorine-containing polymer, 5-50 parts of water, 100 parts of inorganic silicate solution, 0.5-5 parts of auxiliaries, 10-60 parts of filler and 0-50 parts of pigment. The high-fouling-resistant inorganic silicate coating prepared from the fluorine-containing polymer has good flexibility, water resistance, acid and alkali resistance and scrubbing resistance, wherein no abnormality of alkali resistance occurs within 48 h, and base exposure does not occur after scrubbing is conducted 1,200 times; the problems of cracking, disengaging, peeling-off and the like of the coating are effectively prevented, and the coating has wide application in the field of high-fouling-resistant building interior and exterior walls.

Description

technical field [0001] The invention belongs to the field of inorganic silicate coatings, and in particular relates to a fluorine-containing polymer highly antifouling inorganic silicate coating and its preparation method and application. Background technique [0002] At present, the development of interior and exterior wall coatings of buildings is developing in the direction of high decoration, strong stain resistance, high durability, energy saving, pollution-free, green and environmental protection, and water-based. Inorganic silicate coatings use inorganic silicate as a film-forming substance, which has the advantages of rich raw material sources, strong film-forming ability, high temperature resistance, aging resistance, and no pollution, and meets the requirements of energy saving and environmental protection for contemporary building materials. However, during the long-term use of traditional inorganic silicate coatings, there are a series of problems such as crackin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/16C09D7/12C08F220/32C08F220/06C08F220/18
CPCC08F220/06C08F220/18C08F220/32C09D1/00C09D5/1637C09D5/1656C09D5/1687C08F220/325C08F220/1804C08F220/1808C08F220/14C08F220/22C08F220/10
Inventor 王政芳刘伟区罗广建
Owner 国科广化(南雄)新材料研究院有限公司
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