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Nano SiO2 hybridized acrylic acid ester soap-free emulsion and manufacturing method

A nano-silica, acrylate technology, applied in coatings, anti-corrosion coatings, etc., can solve the problems of mechanical properties, medium resistance and decorative properties that need to be improved, and achieve good storage stability, chemical stability, and water resistance Good, good water resistance effect

Active Publication Date: 2015-07-01
JIANGSU RONGCHANG NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the field of water-based coatings, the water-based resins that are currently being studied mainly include water-based acrylate resins, water-based epoxy resins, water-based polyurethane resins, water-based fluorocarbon resins, and water-based inorganic silicate resins. Simple, low cost, occupying more than 80% of the market of water-based coatings, but its mechanical properties, medium resistance, and decorative properties still need to be improved, and nano-oxides have the ability to hybridize acrylic emulsions to improve resin properties. An important way, modification to improve the comprehensive performance of the resin, expanding the application field, has a good application prospect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The formula and process are as follows:

[0022] (1) Preparation of alcohol-modified silica sol: In terms of mass fraction, add 90 parts of silica sol and 10 parts of dipropylene glycol into a stirring tank, stir and react for 2 hours at room temperature to obtain modified silica sol.

[0023] (2) Put all the double bond-containing polymerizable monomers (20 parts of butyl acrylate, 19 parts of methyl acrylate, and 1 part of acrylic acid) into the monomer tank and mix evenly to prepare mixed monomers.

[0024] (3) Put 10 parts of modified silica sol and 25 parts of ionized water into the reaction kettle, stir at a speed of 120r / min, slowly add 0.15 parts of ammonium persulfate initiator, 0.15 parts of potassium bicarbonate pH regulator and 25 parts of water to prepare the initiator Agent buffer solution, add 50% mixed monomer, and disperse for 15 minutes. After raising the temperature to 80°C and stirring for 1 hour, start to add the remaining 50% of the mixed monomer ...

Embodiment 2

[0026] The formula and process are as follows:

[0027] (1) Preparation of alcohol-modified silica sol: In terms of mass fraction, add 80 parts of silica sol and 20 parts of dipropylene glycol into a stirring tank, stir and react for 2 hours at room temperature to obtain modified silica sol.

[0028] (2) Put all the double bond-containing polymerizable monomers (15 parts of butyl acrylate, 19 parts of methyl acrylate, 5 parts of allyl trimethylsiloxane, and 1 part of acrylic acid) into the monomer tank and mix evenly, and prepare Mixed monomers.

[0029] (3) Put 10 parts of modified silica sol and 25 parts of ionized water into the reaction kettle, stir at a speed of 120r / min, slowly add 0.15 parts of ammonium persulfate initiator, 0.15 parts of potassium bicarbonate pH regulator and 25 parts of water to prepare the initiator agent buffer solution, add 20 parts of mixed monomers, and disperse for 15 minutes. After raising the temperature to 80°C and stirring for 1 hour, star...

Embodiment 3

[0031] The formula and process are as follows:

[0032] (1) Preparation of alcohol-modified silica sol: In terms of mass fraction, add 90 parts of silica sol and 10 parts of dipropylene glycol into a stirring tank, stir and react for 2 hours at room temperature to obtain modified silica sol.

[0033] (2) Put all the double bond-containing polymerizable monomers (18 parts of butyl acrylate, 19 parts of methyl acrylate, 2 parts of allyl trimethylsiloxane, 1 part of acrylic acid) into the monomer tank and mix evenly, and prepare Mixed monomers.

[0034] (3) Put 20 parts of modified silica sol and 20 parts of ionized water into the reaction kettle, stir at a speed of 120r / min, slowly add 0.1 part of ammonium persulfate initiator, 0.1 part of potassium bicarbonate pH regulator and 20 parts of water to prepare the initiator Agent buffer solution, add 50% mixed monomer, and disperse for 15 minutes. After raising the temperature to 80°C and stirring for 1 hour, start to add the rema...

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Abstract

The invention relates to a nano SiO2 hybridized acrylic acid ester soap-free emulsion and a manufacturing method, wherein the nano SiO2 hybridized acrylic acid ester soap-free emulsion is prepared by the following components by weight: 5-20 parts of modified silica sol, 40-70 parts of deionized water, 20-50 parts of double bond containing polymerisable monomer, and 0.1-0.3 parts of initiator. An aqueous resin prepared by the invention has good water proofness, mechanical property and weatherability, can be used for preparing an aqueous woodenware paint, a construction anticorrosion paint and an anticorrosive paint with high ornamental feature.

Description

technical field [0001] The invention relates to a nano silicon dioxide hybrid acrylate soap-free emulsion and a manufacturing method thereof. Background technique [0002] Water-based coatings are safe and environmentally friendly, and are used to replace heavily polluted solvent-based coatings, and are widely used in many fields. In the field of water-based coatings, the water-based resins that are currently being studied mainly include water-based acrylate resins, water-based epoxy resins, water-based polyurethane resins, water-based fluorocarbon resins, and water-based inorganic silicate resins. Simple, low cost, occupying more than 80% of the market of water-based coatings, but its mechanical properties, medium resistance, and decorative properties still need to be improved, and nano-oxides have the ability to hybridize acrylic emulsions to improve resin properties. An important way, modification to improve the comprehensive performance of the resin, expanding the appli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F220/14C08F220/06C08F230/08C08F2/24C09D133/08C09D5/08
Inventor 常春周铭陈群钟涛郭倩黄顺道
Owner JIANGSU RONGCHANG NEW MATERIAL TECH
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