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Fluorine-silicon modified waterborne alkyd resin and preparing method thereof

A water-based alkyd resin, fluorosilicon modification technology, used in antifouling/underwater coatings, coatings, anti-corrosion coatings, etc., can solve the problems of aging resistance, poor self-cleaning function, and no high temperature resistance. Achieve the effect of low VOC content, reduced physical and chemical properties, and good adhesion

Active Publication Date: 2016-11-16
湖南大禹防水建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since the structure of ordinary alkyd resin only contains C-C, C-O bonds, and does not contain Si-O bonds, and Si-O in organosilicon molecules has high bond energy, ordinary alkyd resins do not have high temperature resistance after being made into paint ; And the aging resistance and self-cleaning function are relatively poor, so it is especially important to develop a multi-functional, cost-effective water-based resin

Method used

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  • Fluorine-silicon modified waterborne alkyd resin and preparing method thereof
  • Fluorine-silicon modified waterborne alkyd resin and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of fluorosilicon modified water-based alkyd resin, its preparation process is as follows:

[0027] a. Put 4.0 parts of hydroxyl-terminated organosilicon into a four-port reactor equipped with a thermometer, condenser and stirrer and raise the temperature to 82-85°C, then add 6.0 parts of toluene diisocyanate dropwise at a constant speed, and finish the dropping within 1 hour. Continue to react for 2h to obtain active intermediate A, which is ready for use;

[0028] b. In a reactor equipped with a stirring and dripping device, add 8.0 parts of acrylic monomers, 6.0 parts of fluoroolefin monomers and 0.07 parts of catalyst azobisisobutyronitrile according to the recipe requirements, and stir evenly to obtain a monomer mixture B, for use;

[0029] c. In a four-port reactor equipped with a thermometer, condenser, water separator, and agitator, according to the weight percentage of the formula, add 6.0 parts of vegetable oil fatty acid, 3.0 parts of phthalic anhydrid...

Embodiment 2

[0032] A kind of fluorosilicon modified water-based alkyd resin, its preparation process is as follows:

[0033] a. Put 4.5 parts of hydroxyl-terminated organosilicon into a four-port reactor equipped with a thermometer, condenser, and stirrer and raise the temperature to 83-87°C, then add 7.0 parts of isophorone diisocyanate dropwise at a constant speed, within 1 hour After dropping, continue to react for 2h to obtain active intermediate A, which is ready for use;

[0034] b. In the reactor with stirring and dripping device, add 6.0 parts of acrylic monomer, 6.5 parts of fluoroolefin monomer and 0.07 part of catalyst azobisisobutyronitrile according to the recipe requirements, and stir to obtain a monomer mixture B, for use;

[0035] c. In the four-port reactor equipped with a thermometer, condenser, water separator, and agitator, according to the weight percentage of the formula, add 6.0 parts of vegetable oil fatty acid, 3.5 parts of phthalic anhydride, 6.5 parts of trimet...

Embodiment 3

[0038] A kind of fluorosilicon modified water-based alkyd resin, its preparation process is as follows:

[0039] a. Put 3.5 parts of hydroxyl-terminated silicone into a four-port reactor equipped with a thermometer, condenser and stirrer and raise the temperature to 83-87°C, then add 7.0 parts of isophorone diisocyanate dropwise at a constant speed, within 1 hour After dropping, continue to react for 2h to obtain active intermediate A, which is ready for use;

[0040] b. In a reactor equipped with a stirring and dripping device, add 8.5 parts of acrylic monomers, 7.0 parts of fluoroolefin monomers and 0.07 parts of catalyst azobisisobutyronitrile according to the recipe requirements, and stir to obtain a monomer mixture B, for use;

[0041] c. In the four-port reactor equipped with a thermometer, condenser, water separator, and agitator, according to the weight percentage of the formula, add 8.0 parts of vegetable oil fatty acid, 3.2 parts of phthalic anhydride, 6.4 parts of ...

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Abstract

The invention relates to a fluorine-silicon modified waterborne alkyd resin and a preparing method thereof. The fluorine-silicon modified waterborne alkyd resin is prepared from vegetable oil fatty acid, organic acid anhydride, polyol, fluorinated allyl monomers, isocyanate, hydroxyl-terminated organic silicon, acrylic monomers and deionized water. Single-component waterborne paint, double-component waterborne paint and room-temperature curing paint can be blended with the fluorine-silicon modified waterborne alkyd resin prepared through the method. The prepared fluorine-silicon modified waterborne alkyd resin has the performance such as high adhesion, stain resistance, high hardness, water resistance, durability, hydrophobicity and self-cleaning performance, and can be widely applied to waterborne wood paint, waterborne industrial paint, waterborne anti-fouling paint, waterborne corrosion resistance paint, waterborne special engineering paint such as radar dome materials, wind power generation, nuclear power and vessel paint and the like.

Description

technical field [0001] The invention relates to a preparation method of a modified water-based alkyd resin, in particular to a fluorosilicon-modified water-based alkyd with uniform structure, low cost, extremely low surface tension, good hydrophobicity, antifouling and high hardness functions resin. The invention combines the characteristics of easy-to-obtain and low-cost alkyd resin raw materials, high bond energy of Si-O, and small fluorine atomic radius, and the prepared fluorine-silicon modified water-based alkyd resin can be used for substrates such as wood, metal, and plastic, The invention belongs to the technical field of water-based resin synthesis. Background technique [0002] Alkyd resin was developed in the 1930s. It has the characteristics of good adhesion, brightness and plumpness of the paint film, and has good construction performance, but its paint film is soft, slow drying, long curing time, weather resistance, water resistance, Poor alkali resistance. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/00C08G18/68C08G18/61C08G63/49C09D151/08C09D5/16C09D5/08
CPCC08F283/008C08G18/61C08G18/683C08G63/48C09D5/08C09D5/1662C09D151/08
Inventor 张武许钧强康伦国姚东生周利军孙小光祁林
Owner 湖南大禹防水建材科技有限公司
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