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Preparation method of fluorinated polyurethane modified acrylic waterborne resin

A water-based, polyurethane-modified technology for acrylic acid, applied in polyurea/polyurethane coatings, biocide-containing paints, anti-fouling/underwater coatings, etc., can solve the problem that heat-insulating coatings cannot meet heavy-duty anti-corrosion requirements, and do not pay attention to heavy-duty anti-corrosion Problems such as heat insulation performance and single function have achieved obvious energy-saving effect, excellent flexibility and energy-saving effect

Inactive Publication Date: 2019-03-29
JIAXING LENOSHA ELECTRICAL APPLIANCE TECH CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, the function of industrial coatings is single, and the test of heavy-duty anti-corrosion does not pay attention to heat insulation performance, but heat-insulating coatings cannot meet the requirements of heavy-duty anti-corrosion

Method used

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Embodiment Construction

[0016] The invention discloses a method for preparing a fluorine-containing polyurethane-modified acrylic water-based resin. The specific implementation of the invention will be further described below in combination with preferred examples.

[0017] The preparation method of described a kind of fluorine-containing polyurethane modified acrylic water-based resin comprises the following steps:

[0018] a) In a four-port reactor equipped with a thermometer, condenser, and agitator, according to the ratio, add polyols, oligomer polyols, and dimethylol propionic acid in sequence, raise the temperature to 95-110°C, and vacuum Bottom dehydration for 1.5~2.0h;

[0019] b) Cool down to 60-70°C, feed N2, add polyisocyanate, add dibutyltin dilaurate dropwise according to the formula, then raise the temperature to 80-82°C and react for 1.5-2.0 hours to obtain the hydrophilic polyurethane prepolymer;

[0020] c) Take 40-50% of the total amount of acrylic acid soft and hard mixed monomer...

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Abstract

The invention discloses a preparation method of fluorinated polyurethane modified acrylic waterborne resin. An anti-fouling paint prepared from the resin material provided by the invention has the characteristics of excellent flexibility, thermal stability, aging resistance, chemical inertness, hydrophobic self-cleaning properties and atmospheric corrosion resistance, and also has high solar lightreflection ratio and hemispherical emissivity, and at a high temperature in summer, the surface temperature can be lowered by 10-20DEG C, the internal temperature is reduced by 6-13DEG C, the higherthe temperature is, the bigger the temperature difference is, and the energy-saving effect is obvious. And the anti-fouling paint prepared from the resin material can be widely applied to cooling in buildings, chemical industry, petroleum, electric power, metallurgy, ships, light textiles, storage, transportation, aerospace, etc., saves energy, and creates comfortable human life and work environment.

Description

technical field [0001] The invention belongs to the technical field of preparation methods, and in particular relates to a preparation method of fluorine-containing polyurethane modified acrylic water-based resin. Background technique [0002] Solar energy is a necessary condition for human survival and life, but strong radiation also brings many problems and inconvenience to industrial production and daily life. With the advent of a conservation-minded society and the aggravation of the global warming effect, materials with the ability to reflect solar heat and passive radiative cooling have attracted increasing attention. Especially on the outer surface of tanks and equipment such as chemical industry storage tanks and liquefied natural gas (LNG) storage tanks, if there is no protection of heat-reflective insulation materials, it will not only cause energy loss, but also may cause serious fires and explosions and other security incidents. Among the heat-reflecting and he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/00C08F220/06C08G18/67C08G18/34C08G18/83C09D5/08C09D5/16C09D5/33C09D175/14
CPCC08F283/008C08G18/348C08G18/672C08G18/831C09D5/004C09D5/08C09D5/1668C09D175/14C08G18/65C08F220/06
Inventor 韩潇蕾
Owner JIAXING LENOSHA ELECTRICAL APPLIANCE TECH CO LTD
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