Anti-fog coating material and preparation method thereof

A technology of anti-fog coating and alkyd resin, applied in the direction of polyester coating, epoxy resin coating, polyurea/polyurethane coating, etc. Coating anti-fog reduction and other problems, to achieve the effect of enhancing practicability and safety, improving scratch resistance and adhesion, and good anti-fog effect

Inactive Publication Date: 2017-10-20
YIXING HONGTAI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the effect of simply using surfactants is much better, with the continuous improvement of application occasions and requirements, there are still some key problems in the adaptability of current anti-fog coatings that have not been completely resolved and need to be solved urgently, such as anti-fog performance. Unsatisfactory, low film strength and poor durability, etc., this is a pair of contradictory problems, because the anti-fog component of the traditional anti-fog coating is the film-forming substance that provide

Method used

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  • Anti-fog coating material and preparation method thereof

Examples

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preparation example Construction

[0032] The following is the preparation method of each example anti-fog coating:

[0033] (1) Add acrylic resin, alkyd resin and epoxy resin to the reaction kettle, heat and stir for 3-5min, heat to 50-55°C, the speed of the stirring device during stirring is 800r / min, add defoamer and coupler For the coupling agent, keep the temperature and rotation speed constant, continue heating and stirring for 2-4 minutes, then add inorganic nanoparticles and surfactants, keep the temperature and rotation speed constant, continue heating and stirring for 3-5 minutes;

[0034] (2) Stop heating, adjust the rotating speed of the stirring device to 500r / min, wait for the temperature in the reactor to drop to 40°C, add fatty acid sodium and binary block copolymer containing propionamide and hydroxyethyl ester in the reactor , then adjust the rotating speed of the stirring device to 600r / min, and stir for 3-4min;

[0035] (3) When the temperature drops to 30°C, add essence into the reaction k...

Embodiment 1

[0036] Embodiment 1: (comparative example)

[0037] An anti-fog coating, the parts by mass of each component are: 10 parts of hydroxyethyl acrylate, 10 parts of butyl acrylate, 10 parts of dry short oil alkyd resin, 15 parts of acrylic acid modified alkyd resin, glycidol 10 parts of ester epoxy resin, 3 parts of sodium fatty acid, 10 parts of binary block copolymer containing propionamide and hydroxyethyl ester, 5 parts of sodium lauryl sulfate, 5 parts of polyammonium methacrylate, graphite-like phase Carbon nitride 4 parts, nano ZrO 2 4 parts, 0.3 parts of polydimethylsiloxane, 0.5 parts of silane coupling agent, 0.5 parts of γ-glycidyl ether propyl trimethoxysilane, 1 part of essence.

[0038] Spray the paint on the glass, adjust the indoor and outdoor temperature difference to 15°C, observe after 24 hours: there are obvious fog traces on the glass, there is a whitening phenomenon, and the water droplets on the surface are discontinuous, and the anti-fog effect is not good....

Embodiment 2

[0040] An anti-fog coating, the parts by mass of each component are: 10 parts of hydroxyethyl acrylate, 10 parts of butyl acrylate, 10 parts of dry short oil alkyd resin, 15 parts of acrylic acid modified alkyd resin, glycidol 10 parts of ester epoxy resin, 5 parts of sodium fatty acid, 10 parts of binary block copolymer containing propionamide and hydroxyethyl ester, 5 parts of sodium lauryl sulfate, 5 parts of polyammonium methacrylate, graphite-like phase Carbon nitride 4 parts, nano ZrO 2 4 parts, 0.3 parts of polydimethylsiloxane, 0.5 parts of silane coupling agent, 0.5 parts of γ-glycidyl ether propyl trimethoxysilane, 1 part of essence.

[0041] Spray the paint on the glass, adjust the indoor and outdoor temperature difference to 15°C, and observe after 24 hours: there is no obvious trace of fog on the glass, no whitening phenomenon, and the anti-fog effect is good. After adding a strong light source outdoors, the eyes can not feel strong The light does not affect the...

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Abstract

The invention discloses an anti-fog coating material and a preparation method thereof. The anti-fog coating material comprises the following components, in parts by mass: 20-40 parts of acrylic resin, 15-25 parts of alkyd resin, 10-20 parts of epoxy resin, 5-15 parts of sodium aliphatate, 10 parts of a binary block copolymer containing propanamide and hydroxyethyl ester, 5-25 parts of a surfactant, 8-12 parts of inorganic nanometer particles, 0.3-0.6 part of an antifoaming agent, 0.1-3 parts of a coupling agent and 1-3 parts of essence. According to the anti-fog coating material disclosed in the invention, the hydrophilicity is high, fog resistance and bright-light resistance are good, and the stability is high, and the coating material mainly used in the fields which need long-efficiency and high-quality fog resistance such as architectural glass, automobile window decorations, ocean ships, and port glass facilities, and practicability and security of devices can be effectively increased.

Description

technical field [0001] The invention relates to the field of functional coatings, in particular to an anti-fog coating and its preparation method and application. Background technique [0002] Transparent substrates (such as glass, plastic, etc.) are indispensable materials in people's daily life, work and production, but when the temperature difference between the inside and outside is too large, the phenomenon of atomization will occur on the glass separating the two spaces, which will affect people's line of sight. People standing in front of the glass cannot see the objects in the external space clearly, and have a low sense of security, especially for the glass installed on the running objects (such as the front and rear windows of the car), after the fogging phenomenon occurs, the internal operators cannot pass through the glass. See clearly whether there are obstacles in front of the running object. If there is an external strong light source at this time, the strong...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D133/12C09D133/10C09D167/08C09D163/00C09D133/14C09D163/02C09D7/12
CPCC09D175/14C08K2003/2244C08K2003/2248C08K2003/2272C08K2003/2296C08K2003/265C08K2201/011C08L2205/025C08L2205/035C09D133/10C09D133/12C09D167/08C08L67/08C08L33/14C08L63/00C08K13/06C08K9/10C08K3/28C08K3/22C08K5/098C08L33/08C08L33/10C08K3/26C08L33/12C08K7/24
Inventor 陈朝岚吴玉民刘健吴刚强郭猛彭叶刘晓明卢礼灿
Owner YIXING HONGTAI CHEM
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