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Modified polyurethane coating and preparation method thereof

A polyurethane coating and modification technology, applied in the field of coatings, can solve the problems of lack of temperature insulation performance and limit the application scope of polyurethane coatings, and achieve the effects of broadening the scope of use, increasing the spacing between layers, and improving affinity

Inactive Publication Date: 2020-02-11
斯博锐精细化学品(广东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the continuous development of science and technology, the requirements for coatings are also increasing. Metal pipes are common components in industrial buildings. The fluid in metal pipes needs to maintain temperature, which requires the coatings coated on metal pipes to have a temperature insulation effect. , because polyurethane coatings have excellent comprehensive properties, but do not have thermal insulation performance, which limits the application range of polyurethane coatings, a modified polyurethane coating and its preparation method are proposed

Method used

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  • Modified polyurethane coating and preparation method thereof
  • Modified polyurethane coating and preparation method thereof
  • Modified polyurethane coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Step 1: Preparation of Organic Sepiolite

[0022] Disperse the sepiolite in deionized water under stirring to form a sepiolite suspension, let it stand for 24 hours, use ultrasonic waves to disperse the sepiolite suspension for 20 minutes, add octadecyltrimethylammonium chloride, and stir to dissolve Finally, put it into an ultrasonic cleaner, react at a temperature of 60°C for 3 hours, let it stand for stratification to remove the upper layer solution, filter it with suction, use deionized water to clean the product, dry it, and crush it to prepare organic sea foam stone;

[0023] Step 2: Prepare Insulation Components

[0024] Stir 5 parts of styrene, 5 parts of butyl acrylate, 7 parts of organic sepiolite, 3 parts of deionized water and 2 parts of oleic acid at a temperature of 20°C for 1 hour, then raise the temperature to 40°C, and slowly add the initiator dropwise An aqueous solution of potassium persulfate was reacted for 1 hour to obtain the temperature insulat...

Embodiment 2

[0032] Step 1: Preparation of Organic Sepiolite

[0033] Disperse the sepiolite in deionized water under stirring to form a sepiolite suspension, let it stand for 24 hours, use ultrasonic waves to disperse the sepiolite suspension for 23 minutes, add octadecyltrimethylammonium chloride, and stir to dissolve Finally, put it into an ultrasonic cleaner, react at a temperature of 60°C for 3 hours, let it stand for stratification to remove the upper layer solution, filter it with suction, use deionized water to clean the product, dry it, and crush it to prepare organic sea foam stone;

[0034] Step 2: Prepare Insulation Components

[0035] Stir 6 parts of styrene, 6 parts of butyl acrylate, 8 parts of organic sepiolite, 3 parts of deionized water and 2 parts of oleic acid at a temperature of 22°C for 1 hour, then raise the temperature to 43°C, and slowly add the initiator dropwise An aqueous solution of potassium persulfate was reacted for 1 hour to obtain the temperature insulat...

Embodiment 3

[0043] Step 1: Preparation of Organic Sepiolite

[0044] Disperse the sepiolite in deionized water under stirring to form a sepiolite suspension, let it stand for 24 hours, use ultrasonic waves to disperse the sepiolite suspension for 26 minutes, add octadecyltrimethylammonium chloride, and stir to dissolve Finally, put it into an ultrasonic cleaner, react at a temperature of 60°C for 3 hours, let it stand for stratification to remove the upper layer solution, filter it with suction, use deionized water to clean the product, dry it, and crush it to prepare organic sea foam stone;

[0045] Step 2: Prepare Insulation Components

[0046] Stir 7 parts of styrene, 7 parts of butyl acrylate, 9 parts of organic sepiolite, 3 parts of deionized water and 3 parts of oleic acid at a temperature of 23°C for 1 hour, then raise the temperature to 46°C, and slowly add the initiator dropwise An aqueous solution of potassium persulfate was reacted for 1 hour to obtain the temperature insulat...

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Abstract

The invention belongs to the technical field of coatings, and particularly relates to a modified polyurethane coating and a preparation method thereof. The modified polyurethane coating comprises thefollowing raw materials: a polyester resin component, an amino resin component, an isocyanate component, a thermal insulation agent component and an auxiliary agent component, wherein the thermal insulation agent component is composed of organic sepiolite, styrene, butyl acrylate, deionized water and oleic acid. According to the invention, styrene and butyl acrylate monomers generate styrene-butylacrylate under the action of an initiator, and styrene and butyl acrylate enter the space between organic sepiolite layers, so the thermal insulation agent component is obtained; oleic acid is unsaturated fatty acid and is environmentally friendly and harmless, and the addition of oleic acid is beneficial for polymerization between the styrene and butyl acrylate monomers, enables the styrene andbutyl acrylate monomers to react under lower preset conditions and functions as a surfactant for the styrene and butyl acrylate monomers, thereby realizing more thorough polymerization of the styreneand butyl acrylate monomers; and due to the addition of the thermal insulation agent component, the original performance of the polyurethane coating is improved, and the polyurethane coating has relatively strong thermal insulation performance.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a modified polyurethane coating and a preparation method thereof. Background technique [0002] Polyurethane coatings are currently the most common type of coatings, which can be divided into two-component polyurethane coatings and one-component polyurethane coatings. Two-component polyurethane coatings are generally composed of isocyanate prepolymers and hydroxyl resins, commonly known as curing agent components and main agent components. There are many varieties of this type of coating, and the application range is also very wide. According to the difference of the hydroxyl group-containing components, it can be divided into acrylic polyurethane, alkyd polyurethane, polyester polyurethane, polyether polyurethane, epoxy polyurethane and other varieties. Generally, they have good mechanical properties, high solid content, and good performance in all aspects. It is a kind of co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C09D161/20C09D7/62C08F212/08C08F220/18
CPCC08F212/08C08F220/18C09D175/06C09D7/62C09D7/70C08L61/20C08K13/06C08K9/08C08K9/04C08K7/26
Inventor 陆天献
Owner 斯博锐精细化学品(广东)有限公司
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