Organic-inorganic hybrid high-silicon-content acrylic ester emulsion and preparation method thereof

An acrylate and acrylate technology, applied in the fields of hybrid nano-coatings, high-performance high-silicon content acrylate emulsions and their preparation, can solve problems such as low silicon content in silicone-acrylic emulsions, achieve easy-to-obtain prices and reduce production costs , The effect of stable and easy control of reaction temperature

Active Publication Date: 2012-08-29
深圳市卓联电子有限公司
View PDF4 Cites 44 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the low silicon content of the silicon-acrylic emulsion prepared in the prior art, which is not obvious in improving the hardness, weather resistance, water resistance and other performances of the coating, and to provide an organic-inorganic hybrid high-silicon content Acrylate emulsion, its SiO 2 The content is more than 20%. It has good appearance, good storage stability and freeze-thaw stability. Its coating film has high transparency, hardness 5H, adhesion level 1, and excellent stain resistance, weather resistance and water resistance.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Organic-inorganic hybrid high-silicon-content acrylic ester emulsion and preparation method thereof
  • Organic-inorganic hybrid high-silicon-content acrylic ester emulsion and preparation method thereof
  • Organic-inorganic hybrid high-silicon-content acrylic ester emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Add 15g of isopropanol and 0.84g of γ-(methacryloyloxy)propyltrimethoxysilane to 35g of silica sol, stir and react at 50°C for 8h to obtain modified silica sol.

[0040] Add 3g of deionized water, 0.1g of DNS-86 and OP-10 (the mass ratio of anionic emulsifier to nonionic emulsifier is 1:1) into the jar, after dissolving evenly, add it dropwise at a constant speed within 10min 2g mixed monomer methyl methacrylate and butyl acrylate (mass ratio is 1: 1), after the dropwise addition is completed, stir with a magnetic stirrer at a speed of 2000rpm for 15min, and then stir at a speed of 500rpm for 5min to obtain a pre-emulsified nucleosomes.

[0041] Add 5g of deionized water, 0.3g of DNS-86 and OP-10 (the mass ratio of anionic emulsifier and nonionic emulsifier is 1:1) into the jar, after dissolving evenly, add it dropwise at a constant speed within 20min 10g of mixed monomers methyl methacrylate and butyl acrylate (mass ratio is 1:1), and 0.15g of methacrylic acid, after ...

Embodiment 2

[0044] Add 15 g of ethanol and 1.05 g of vinyltriethoxysilane to 35 g of silica sol, and stir and react at 40° C. for 6 h to obtain modified silica sol.

[0045] Add 3g of deionized water, 0.2g of PEO-10 ​​and T-80 (the mass ratio of anionic emulsifier to nonionic emulsifier is 2:1) into the jar, after dissolving evenly, add it dropwise at a constant speed within 5min 4g mixed monomer methyl methacrylate and butyl acrylate (mass ratio is 1: 1), after the dropwise addition is completed, stir with a magnetic stirrer at a speed of 1000rpm for 30min, and then stir at a speed of 800rpm for 5min to obtain a pre-emulsified nucleosomes.

[0046] Add 13g of deionized water, 0.9g of PEO-10 ​​and T-80 (the mass ratio of anionic emulsifier to nonionic emulsifier is 2:1) into the jar, dissolve evenly, and drop it at a constant speed within 25min Add 23g of mixed monomers methyl methacrylate and butyl acrylate (mass ratio is 1:1), and all 0.7g of methacrylic acid in the formula, after the ...

Embodiment 3

[0049] Add 15g of isopropanol and 1.05g of γ-glycidoxypropyltrimethoxysilane to 35g of silica sol, and stir and react at 20°C for 12h to obtain modified silica sol.

[0050] Add 5g of deionized water, 0.35g of PEO-10 ​​and T-80 (the mass ratio of anionic emulsifier to nonionic emulsifier is 1:1) into the jar, dissolve evenly, and drop it at a constant speed within 10min Add 7g of mixed monomers methyl methacrylate and butyl acrylate (mass ratio is 1: 1), after the dropwise addition is completed, stir with a magnetic stirrer at a speed of 1500rpm for 15min, and then stir at a speed of 500rpm for 5min to prepare the prepared Emulsified nucleomonomers.

[0051] Add 10g of deionized water, 0.7g of PEO-10 ​​and T-80 (the mass ratio of anionic emulsifier to nonionic emulsifier is 1:1) into the jar, dissolve evenly, and drop it at a constant speed within 20min Add 20g of mixed monomer methyl methacrylate and butyl acrylate (mass ratio is 1:1), and all 0.3g of methacrylic acid in the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
hardnessaaaaaaaaaa
Login to view more

Abstract

The invention discloses organic-inorganic hybrid high-silicon-content acrylic ester emulsion and a preparation method thereof. The preparation method comprises the following steps: modifying silica sol by using a silane coupling agent; coupling the modified silicon sol with hydroxyl-containing hydrophilic functional monomers; and performing in-situ polymerization with acrylic ester monomers. The organic-inorganic hybrid high-silicon-content acrylic ester emulsion comprises the following raw materials in part by mass: 55 to 80 parts of deionized water, 20 to 70 parts of modified silicon sol, 15 to 40 parts of acrylic ester monomer, 0.01 to 1.5 parts of methacrylic acid, 0.1 to 2.5 parts of emulsifying agent, 0.02 to 1.5 parts of initiator and 0.01 to 1.0 part of sodium hydrogen carbonate, wherein the mass content (by SiO2) of silicon in the organic-inorganic hybrid high-silicon-content acrylic ester emulsion is 20 to 25 percent. The emulsion has an attractive appearance and high storage stability and freeze-thaw stability; the coating of the emulsion is smooth and has high transparency; the hardness is 5H and the adhesive force is 1 level; and excellent weather resistance and water resistance are achieved.

Description

technical field [0001] The invention relates to an acrylate emulsion, especially an acrylate emulsion with high performance and high silicon content and a preparation method thereof. The emulsion can be used as a film-forming substance to prepare a hybrid nano-coating with the advantages of both inorganic materials and organic high polymers . technical background [0002] With the increasing awareness of environmental protection, more attention has been paid to the emulsion polymerization method using water as the medium, which has also greatly promoted the development of emulsion polymerization technology. The key technology for emulsion coatings to replace solvent-based coatings is the challenge of coating film hardness and weather resistance, which are difficult goals for ordinary emulsion products. The organic-inorganic composite polymer emulsion can prevent the agglomeration of inorganic particles, significantly improve the stability of the emulsion and the wear resist...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08F292/00C08F220/14C08F220/18C08F220/28C08F220/58C08F2/26C08F2/30C09D151/10
Inventor 皮丕辉张佼如文秀芳张杏娟蔡智奇徐守萍程江杨卓如
Owner 深圳市卓联电子有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap