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Water dispersible rein and a preparing method thereof

A technology for dispersing resin and molecular weight, which is applied in the direction of anti-corrosion coatings, etc., can solve problems such as research stays, achieve the effects of reducing pollution, wide sources of raw materials, and reducing hazards

Pending Publication Date: 2018-12-07
山东奔腾漆业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on the industrial production of water-based resins based on natural bio-based research objects, and most of the research is still in the laboratory stage.

Method used

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  • Water dispersible rein and a preparing method thereof
  • Water dispersible rein and a preparing method thereof
  • Water dispersible rein and a preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 25 parts of cardanol and 40 parts of epoxidized soybean oil into a 300ml four-necked flask equipped with a stirrer, reflux condenser, and thermometer, pass in nitrogen for protection, start stirring and gradually heat up to 210-215°C to keep warm and react To the acid value below 0.5mg KOH / g; cool down to 45°C, add 3 parts of toluene diisocyanate TDI, keep warm at 45°C for 1 hour, add 2 parts of polyethylene glycol PEG, keep warm at 45°C for 1 hour, and heat up to 85°C React for 1 hour; lower the temperature to 70°C, add 50 parts of deionized water, stir evenly, and cool to room temperature to obtain the product.

Embodiment 2

[0023] Add 30 parts of cardanol and 35 parts of epoxy dehydrated castor oil into a 300ml four-necked flask equipped with a stirrer, reflux condenser, and thermometer, pass in nitrogen for protection, start stirring and gradually heat up to 210-215°C to keep the temperature React until the acid value is below 0.5mg KOH / g; cool down to 40°C, add 2 parts of methylene diphenyl diisocyanate MDI, 2 parts of xylylene diisocyanate XDI, keep warm at 40°C for 2 hours, add polypropylene glycol 3 parts of PPG, keep warm at 40°C for 2 hours, raise the temperature to 70°C for 2 hours; cool down to 60°C, add 48 parts of deionized water, stir evenly, and cool to room temperature to obtain the product.

Embodiment 3

[0025] Add 35 parts of cardanol, 15 parts of epoxy soybean oil, 10 parts of epoxy linseed oil, and 10 parts of epoxy dehydrated castor oil in a 300ml four-neck flask equipped with a stirrer, reflux condenser, and thermometer, and feed nitrogen for protection , start stirring and gradually heat up to 210-215°C, keep warm and react until the acid value is below 0.5mg KOH / g; cool down to 50°C, add 2 parts of toluene diisocyanate TDI, 2 parts of hexamethylene diisocyanate HDI, isofor 2 parts of ketone diisocyanate IPDI, keep warm at 50°C for 0.5 hours, add 4 parts of polytetrahydrofuran PTHF, keep warm at 50°C for 0.5 hours, heat up to 90°C and react for 0.5 hours; cool down to 80°C, add 40 parts of deionized water, stir Evenly, cool to room temperature, that is.

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Abstract

Water dispersible rein is provided. The water dispersible rein is prepared mainly from, by weight, 25-40 parts of cardanol, 15-40 parts of epoxidized vegetable oil, 3-6 parts of diisocyanate, 2-5 parts of polyethylene glycol or hydroxy-terminated polymer and 40-60 parts of deionized water. A preparing method of the water dispersible resin is also provided. The water dispersible rein is prepared from purely-natural biologically extracted raw materials which are wide in source, high in quality and low in cost and are ideal biological-based raw materials. The water dispersible resin prepared fromnatural raw materials can reduce environment pollution, plays a role of continuously improving ecological environment and protecting the nature, and is a novel green product. The water dispersible resin, as a film forming substance in coating, can greatly reduce harm to environment or human during production or construction, and can be used for producing coating products which are nearly VOC-zero, and paint films are decorative, anticorrosion, and environmentally friendly. The resin is a newest environmentally friendly product at present.

Description

technical field [0001] The invention belongs to the field of paint raw materials, in particular to a water-dispersed resin and a preparation method thereof. Background technique [0002] Domestically, with the rapid development of China's economy, people's requirements for the ecological environment and quality of life are getting higher and higher, and the country is paying more and more attention to the protection of the ecological environment. New environmental laws and regulations have been revised and introduced, and the paint industry has changed from oil to water. The wave of water-based coatings continues to rise, and the biggest core of water-based coatings lies in water-based resins, which to a certain extent affect and restrict the development of water-based coatings. [0003] Water-based coatings began to be applied in Germany in the mid-1930s. Initially, they were coatings with emulsions as film-forming substances, mainly used in interior and exterior wall coati...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D5/08C09D7/61C08G18/48C08G18/36C08G18/66
CPCC09D175/08C08G18/36C08G18/4833C08G18/4854C08G18/6696C09D5/08C09D7/61C08K2003/3045C08K2003/2296C08K2003/328C08K3/30C08K3/32C08K3/22
Inventor 李琰辉盛保瑞
Owner 山东奔腾漆业股份有限公司
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