Inorganic nano composite anti-doodling resin and preparation method thereof

An anti-graffiti resin, inorganic nano technology, applied in anti-corrosion coatings, anti-fouling/underwater coatings, coatings, etc., can solve the problems of loss of anti-graffiti effect, decline of anti-graffiti performance, etc., and achieve better modification effect and improvement Weather resistance, uniform distribution effect

Active Publication Date: 2015-04-29
HANGZHOU JIHUA POLYMER MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN 103360875 discloses oily anti-graffiti and anti-stick coatings with fluorocarbon resin and polydimethoxysilane as the main film-forming substances; German patent DE 102007007999 discloses a fluorine-containing acrylate monomer, alkane-based acrylate monomer The anti-graffiti resin obtained by copolymerization of pentaerythritol tetrathioglycolate monomer and can be applied as UV curing coating; Chinese patent CN 102676034 discloses a kind of anti-graffiti coating suitable for outdoor facilities and its preparation method. The mass parts of the main components of the paint are: 30-65 parts of fluorine-containing acrylate modified soybean oil polyurethane resin, 1-10 parts of additives, 15-30 parts of pigments and fillers, and 10-25 parts of water; these anti-graffiti paints The anti-graffiti effect is very good in a short period of time, but after repeated graffiti removal and physical wear, its anti-graffiti performance will drop sharply. In addition, due to the long-term outdoor sun exposure, with the aging and pulverization of the anti-graffiti resin , cracking, the anti-graffiti effect of the entire coating is basically lost

Method used

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  • Inorganic nano composite anti-doodling resin and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Mix nano-silica with a particle size of 10nm, ethanol, water and γ-methacryloxypropyltrimethoxysilane in a mass ratio of 1:20:5:0.5, and reflux in a water bath at 55°C After reacting for 8 hours, the temperature was lowered to room temperature after the reaction was stopped, and the product was centrifuged and washed to obtain C=C modified silane coupling agent-modified inorganic nanoparticles.

[0034] (2) Dissolve 0.15 parts of 2,2'-azobisisobutyronitrile in 9 parts of butyl acetate, and preheat to 60°C to obtain the first solution.

[0035] (3) 5 parts of silane coupling agent modified inorganic nanoparticles, 10 parts of [N-methyl perfluorohexanesulfonamido] ethyl methacrylate, 20 parts of methyl methacrylate, 10 parts Glycidyl methacrylate, 0.3 parts of dodecyl mercaptan and 0.3 parts of 2,2'-azobisisobutyronitrile were dissolved in 18 parts of butyl acetate to obtain a second solution.

[0036] (4) Add the second solution obtained in step (3) to the first sol...

Embodiment 2

[0038] (1) Mix nano-silica with a particle size of 50nm, ethanol, water and γ-methacryloxypropyltrimethoxysilane in a mass ratio of 1:40:10:2.5, and reflux in a water bath at 55°C After reacting for 12 hours, the temperature was lowered to room temperature after the reaction was stopped, and the product was centrifuged and washed to obtain C=C modified silane coupling agent-modified inorganic nanoparticles.

[0039] (2) Dissolve 0.15 parts of 2,2'-azobisisobutyronitrile in 9 parts of ethylene glycol ethyl ether acetate, and preheat to 60°C to obtain the first solution.

[0040] (3) 5 parts of silane coupling agent modified inorganic nanoparticles, 10 parts of [N-methyl perfluorobutanesulfonamido] ethyl methacrylate, 20 parts of methyl acrylate, 10 parts of methyl Glycidyl acrylate, 0.3 parts of dodecyl mercaptan and 0.3 parts of 2,2'-azobisisobutyronitrile were dissolved in 18 parts of ethylene glycol ether acetate to obtain a second solution.

[0041] (4) Add the second solu...

Embodiment 3

[0043] (1) Mix nano-silica with a particle size of 100nm, ethanol, water, and γ-methacryloxypropyltrimethoxysilane in a mass ratio of 1:50:12:3.5, and reflux in a water bath at 55°C After reacting for 16 hours, the temperature was lowered to room temperature after the reaction was stopped, and the product was centrifuged and washed to obtain C=C modified silane coupling agent-modified inorganic nanoparticles.

[0044] (2) Dissolve 0.3 parts of benzoyl peroxide in 12 parts of methyl ethyl ketone, and preheat to 75° C. to obtain the first solution.

[0045] (3) 10 parts of silane coupling agent modified inorganic nanoparticles, 20 parts of [N-methyl perfluorohexanesulfonamido] ethyl acrylate, 40 parts of octadecyl acrylate, 20 parts of acrylic acid shrink Glycerides, 0.8 parts of octadecyl mercaptan and 0.6 parts of benzoyl peroxide were dissolved in 24 parts of methyl ethyl ketone to obtain a second solution.

[0046] (4) Add the second solution obtained in step (3) to the fir...

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Abstract

The invention discloses an inorganic nano composite anti-doodling resin and a preparation method thereof. Silane-coupling-agent-modified inorganic nanoparticles, fluorine-containing acrylate monomer, alkyl acrylate monomer and hydroxyalkyl acrylate monomer are subjected to free-radical polymerization reaction to obtain the inorganic nano composite anti-doodling resin. The film formed by the inorganic nano composite anti-doodling resin has the advantages of excellent weather resistance, excellent scratch resistance, excellent chemical corrosion resistance, excellent ultraviolet resistance, excellent wear resistance, low surface energy, excellent pollution resistance and excellent anti-doodling performance, thereby implementing the long-term anti-doodling action. The invention relates to the field of an anti-doodling resin and a preparation method thereof.

Description

technical field [0001] The invention relates to the field of anti-graffiti resin and its preparation method, in particular to an inorganic nanocomposite anti-graffiti resin and its preparation method. Background technique [0002] Malicious graffiti is a pain for city managers. The cost of graffiti removal in various countries is huge. The UK spends 200 million pounds a year on graffiti removal, while the United States costs more than 20 billion pounds. The loss caused by malicious graffiti has attracted more and more attention. At present, the most effective anti-graffiti technology is the coating formed by anti-graffiti resin, which makes graffiti difficult or easy to remove. Giving the surface of the object a layer of low surface energy antifouling coating can effectively prevent the adhesion and pollution of graffiti, and even the pollution can be easily removed by simple wiping. The currently known compounds with the lowest surface energy are organic fluorines, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F292/00C08F220/14C08F220/32C08F220/38C08F220/28C09D151/10C09D5/08C09D5/16
Inventor 钱涛刘海龙刘海兵
Owner HANGZHOU JIHUA POLYMER MATERIAL CO LTD
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