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Acrylic polyurethane coating and preparation method thereof

A technology of acrylic polyurethane and acrylic resin, which can be used in biocide-containing paints, antifouling/underwater coatings, coatings, etc., and can solve problems such as insufficient antibacterial properties of acrylic polyurethane paints

Inactive Publication Date: 2019-02-22
长沙浩然医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a kind of acrylic polyurethane paint and preparation method thereof, in order to solve the problem that the antibacterial property of the acrylic polyurethane paint disclosed in the Chinese patent document "A kind of acrylic polyurethane paint and its preparation method (application publication number: CN104017450A)" is insufficient in antibacterial performance

Method used

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preparation example Construction

[0023] A kind of preparation method of acrylic polyurethane paint that the present invention proposes, comprises the following steps:

[0024] S1. Mix acrylic resin, fluororesin, silicon-acrylic emulsion, styrene-acrylic emulsion, and closed polyurethane resin evenly, heat up to 110-120°C, keep warm for 10-20min, then disperse at 1500-2500r / min for 25-45min, then Add dibutyltin dilaurate, ethylenediaminetetraacetic acid, bentonite, cellulose acetate butyrate, precipitated barium sulfate, superfine calcium carbonate, nano-titanium dioxide, and bamboo charcoal powder, mix well, and disperse at 300-1000r / min for 15-25min , lower the temperature to 80-90°C, keep warm for 5-15min, then add fluorine-modified polyethylene wax and mix evenly, stir evenly and let stand for 1-3h to obtain the base material;

[0025] S2. Mix polylactic acid, sodium alginate and antibacterial modification additive evenly, stir at 600-800r / min for 1-3h, then add chitosan to grind, stir at 650-850r / min for ...

Embodiment 1

[0029] A kind of acrylic polyurethane lacquer, take weight part as unit, comprise following raw material: 102 parts of acrylic resins, 13.9 parts of polylactic acid, 6.8 parts of fluorine resins, 12.6 parts of silicon-acrylic emulsions, 11.8 parts of styrene-acrylic emulsions, 6.9 parts of closed polyurethane resins, 5.7 parts of dibutyltin dilaurate, 5.8 parts of fluorine-modified polyethylene wax, 4.8 parts of ethylenediaminetetraacetic acid, 4.6 parts of chitosan, 3.8 parts of bentonite, 5.7 parts of cellulose acetate butyrate, 4.3 parts of precipitated barium sulfate, 5.8 parts of superfine calcium carbonate, 5.7 parts of nano titanium dioxide, 4.3 parts of bamboo charcoal powder, 6.8 parts of sodium alginate, 2.2 parts of silane coupling agent KH-550, 11.3 parts of antibacterial modification additive.

[0030] The antibacterial modified auxiliary agent is prepared according to the following process: by weight, 14 parts of tea polyphenol sodium, 5 parts of hydroxyethyl cell...

Embodiment 2

[0036] A kind of acrylic polyurethane paint, with weight part as unit, comprises following raw material: 80 parts of acrylic resins, 16 parts of polylactic acid, 4 parts of fluororesins, 15 parts of silicon acrylic emulsions, 8 parts of styrene acrylic emulsions, 9 parts of closed polyurethane resins, 4 parts of dibutyltin dilaurate, 9 parts of fluorine-modified polyethylene wax, 2 parts of ethylenediaminetetraacetic acid, 6 parts of chitosan, 1 part of bentonite, 8 parts of cellulose acetate butyrate, 2 parts of precipitated barium sulfate, 9 parts of superfine calcium carbonate, 4 parts of nano titanium dioxide, 6 parts of bamboo charcoal powder, 6 parts of sodium alginate, 3 parts of silane coupling agent KH-5503, 8 parts of antibacterial modification additive.

[0037] The antibacterial modified auxiliary agent is prepared according to the following process: by weight, 10 parts of tea polyphenol sodium, 8 parts of hydroxyethyl cellulose, 3 parts of zinc oxide, 6 parts of β-...

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Abstract

The invention discloses an acrylic polyurethane coating and a preparation method thereof. The acrylic polyurethane coating contains the following raw materials: acrylic resins, polylactic acid, fluororesins, silicone acrylic emulsion, styrene-acrylic emulsion, blocked polyurethane resins, ditin butyl dilaurate, fluorine-modified polyethylene wax, ethylene diamine tetraacetic acid, chitosan, bentonite, cellulose acetate butyrate, precipitated barium sulfate, calcium carbonate superfine powder, nanometer titania, bamboo charcoal powder, sodium alginate, a silane coupling agent KH-550 and an antibacterial modified additives. The acrylic polyurethane coating is prepared by the following steps: base stock preparation, modified material preparation, mixing of the base stock, the modified material and auxiliary materials, and the like. The acrylic polyurethane coating disclosed by the invention has excellent antibacterial property.

Description

【Technical field】 [0001] The invention belongs to the technical field of acrylic paint, in particular to an acrylic polyurethane paint and a preparation method thereof. 【Background technique】 [0002] With the development of my country's national economy, the country has continuously increased investment in infrastructure construction and accelerated the construction speed. In this process, it also drives the development of a series of industries and promotes the continuous progress and improvement of various technologies. With the development trend of infrastructure from reinforced concrete to steel structure, coatings are facing new requirements, especially in the antibacterial properties of coatings. Coil coating is a special coating applied on the steel plate to protect and decorate the steel plate. It has the characteristics of continuous operation and production, high utilization rate of paint, low VOC emission, and high degree of mechanization. The construction of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D5/14C09D7/61C09D7/63C09D7/65
CPCC08K2003/2241C08K2003/2296C08K2003/265C08K2003/3045C08K2201/011C08L2205/035C09D5/14C09D7/61C09D7/63C09D7/65C09D133/00C08L67/04C08L101/04C08L43/04C08L25/14C08L75/04C08L23/28C08L5/08C08L1/14C08K13/02C08K3/346C08K3/30C08K3/22C08K3/04C08K5/47C08K5/544
Inventor 不公告发明人
Owner 长沙浩然医疗科技有限公司
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