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POSS (polyhedral oligomeric silsesquioxane) modified high-hardness water-proof alkyd resin and preparation method thereof

An alkyd resin and high hardness technology, applied in the field of water-based functional resins, can solve the problems of easy yellowing of the coating film, poor storage stability, and decreased storage stability of the coating, and achieve excellent hydrolysis resistance, excellent wear resistance, and excellent storage The effect of stability

Active Publication Date: 2018-02-16
UNION FOSHAN CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the fact that the ester bond on the molecular chain of the water-based alkyd resin is easily hydrolyzed under weak alkaline conditions, the storage stability of the coating is reduced, and the coating film is prone to yellowing, which limits the application of the water-based alkyd resin.
[0004] Chinese patent CN1554689A discloses a method to improve the performance of water-based alkyd resin, but trimellitic anhydride is still used as the retained carboxyl group and neutralized to realize the water-based alkyd resin, so it still has ester bonds under weak alkali conditions The risk of degradation does not solve the problem of storage stability; the second is the non-ionic group method, that is, the polymer of non-ionic group hydroxyl and ether group is introduced into the alkyd resin
However, since in the water-based alkyd resin molecule formed by this method, the ester bond

Method used

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  • POSS (polyhedral oligomeric silsesquioxane) modified high-hardness water-proof alkyd resin and preparation method thereof
  • POSS (polyhedral oligomeric silsesquioxane) modified high-hardness water-proof alkyd resin and preparation method thereof
  • POSS (polyhedral oligomeric silsesquioxane) modified high-hardness water-proof alkyd resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A POSS modified high-hardness water-resistant alkyd resin, its composition is in parts by mass: 42.0 parts of linseed oil, 6.0 parts of propylene glycol, 6.0 parts of trimethylolethane, 9.0 parts of phthalic anhydride, 6.0 parts Parts of isopropylboronic acid, 3.0 parts of hexa-carboxyphenyl POSS, 0.05 parts of dibutyltin oxide chloride, 5.0 parts of N,N-dimethylethanolamine, 65.0 parts of deionized water;

[0023] Its preparation method is as follows: in N 2 Under protection, add 21.0 parts of linseed oil, 3.0 parts of propylene glycol, 3.0 parts of trimethylolethane, 3.0 parts of isopropyl boric acid and 0.02 parts of dibutyltin oxide chloride into the reaction kettle, heat to 150 °C, and keep warm Turn off the N after 8 hours of reaction 2 , and then add 9.0 parts of phthalic anhydride, 21.0 parts of linseed oil, 3.0 parts of propylene glycol, 3.0 parts of trimethylolethane, 3.0 parts of six-p-carboxyphenyl POSS, 3.0 parts of isopropyl boric acid and 0.03 parts Par...

Embodiment 2

[0025] A POSS modified high-hardness water-resistant alkyd resin, its composition in parts by mass: 45.0 parts of tung oil, 10.0 parts of propylene glycol, 5.0 parts of pentaerythritol, 10.0 parts of terephthalic anhydride, 8.0 parts of triisopropyl borate , 3.0 parts of hexa-carboxyphenyl POSS, 0.15 parts of monobutyl tin trichloride, 8.0 parts of triethylamine, 65.0 parts of deionized water;

[0026] Its preparation method is as follows: in N 2 Under protection, add 15.0 parts of tung oil, 5.0 parts of propylene glycol, 2.0 parts of pentaerythritol, 3.0 parts of triisopropyl borate and 0.05 parts of monobutyl tin trichloride into the reaction kettle, heat to 180 ° C, keep warm for 5 hours and then turn off the N 2 , then add 10.0 parts of terephthalic anhydride, 30.0 parts of tung oil, 5.0 parts of propylene glycol, 3.0 parts of pentaerythritol, 3.0 parts of six-p-carboxyphenyl POSS, 5.0 parts of triisopropyl borate and 0.10 parts of monobutyl tri Tin chloride, through N 2...

Embodiment 3

[0028] A POSS modified high-hardness water-resistant alkyd resin, the composition of which is: 35.0 parts of soybean oil, 14.0 parts of ethylene glycol, 8.5 parts of tetrahydrophthalic anhydride, 6.0 parts of phenylboronic acid, 5.0 parts of hexa-carboxyl Phenyl POSS, 0.08 parts of dibutyltin dilaurate, 5.0 parts of 2-amino-1-propanol, 70.0 parts of deionized water;

[0029] Its preparation method is as follows: in N 2 Under protection, 15.0 parts of soybean oil, 5.0 parts of ethylene glycol, 2.5 parts of phenylboronic acid and 0.03 parts of dibutyltin dilaurate were added to the reaction kettle, heated to 140°C, kept warm for 9 hours, and then turned off the N 2 , then add 8.5 parts of tetrahydrophthalic anhydride, 20.0 parts of soybean oil, 9.0 parts of ethylene glycol, 5.0 parts of six-p-carboxyphenyl POSS, 3.5 parts of phenylboronic acid and 0.05 parts of dibutyltin dilaurate in the reactor, pass into N 2 , control the reaction temperature at 140°C, keep the temperature ...

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Abstract

The invention relates to POSS (polyhedral oligomeric silsesquioxane) modified high-hardness water-proof alkyd resin which comprises the following ingredients: unsaturated fatty acid, polyalcohol, polybasic acid or anhydride, a boronic acid derivative, 6-p-carboxyphenyl POSS, a catalyst, a neutralizing agent and deionized water. The invention also provides a preparation method of the POSS modifiedhigh-hardness water-proof alkyd resin. The prepared POSS modified high-hardness water-proof alkyd resin has excellent hydrolysis resistance and storage stability, the acid value is 20-50mgKOH/g, the solid content is 45-65wt%, and the viscosity is 600mPa.s-1,500mPa.s; a prepared coating has excellent abrasion resistance, self-cleaning property, transparency, flexibility, corrosion resistance and fire resistance.

Description

technical field [0001] The invention relates to a POSS modified high-hardness water-resistant alkyd resin and a preparation method thereof, belonging to the technical field of water-based functional resins. technical background [0002] Alkyd resin is a very important chemical product, which has a wide range of uses in coatings, inks and other fields. Alkyd resin or modified alkyd resin, because it contains more unsaturated bonds and hydroxyl groups, can realize air oxidation drying or baking crosslinking, and because its synthetic raw materials are easily available, it is used in various coatings The application is very extensive. The current alkyd resin is still mainly solvent-based, but with the economic development and environmental protection requirements, it has become a development trend to make alkyd resin water-based. [0003] Water-based alkyd resin is a high-acid value low-viscosity resin formed by esterification and polycondensation of polyols, polybasic acids ...

Claims

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Application Information

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IPC IPC(8): C08G63/698C08G63/695C08G63/49
CPCC08G63/48C08G63/6956C08G63/6986
Inventor 谢义鹏许钧强康伦国姚东生
Owner UNION FOSHAN CHEM
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