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A kind of long-chain monomer modified polyacrylate emulsion and its preparation method and application

A polyacrylate emulsion and acrylate technology, applied in the field of emulsions, can solve problems such as preparation methods and applications of polyacrylate emulsions that are not involved

Active Publication Date: 2021-05-11
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, none of the above-mentioned patents relates to polyacrylate emulsions modified by long-chain monomers and their preparation methods and applications.
In addition, there is no report on the preparation of long-chain monomer-modified polyacrylate emulsions with environmentally friendly emulsifiers, such as fatty alcohol polyoxyethylene ether emulsifiers.

Method used

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  • A kind of long-chain monomer modified polyacrylate emulsion and its preparation method and application
  • A kind of long-chain monomer modified polyacrylate emulsion and its preparation method and application
  • A kind of long-chain monomer modified polyacrylate emulsion and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0037]In a 250mL four-necked flask equipped with a stirrer, a reflux condenser, and a dropping funnel, add 3.00g of fatty alcohol polyoxyethylene ether sulfosuccinic monoester disodium (AEMES), 0.3g of alkylphenol polyoxyethylene ether (OP-10) and 40.0g deionized water, stirred and heated to 80°C in a water bath. Add 3.0 g of mixed monomers of methyl methacrylate, butyl acrylate and octadecyl acrylate and 3.0 g of azobisisobutylamidine hydrochloride (V-50) aqueous solution dropwise within 15 minutes, and the addition is complete Then continue to keep warm for 15 minutes. Then the remaining 27.0g V-50 aqueous solution and 27.0g methyl methacrylate, butyl acrylate and octadecyl acrylate mixed monomers were added dropwise in the four-necked flask within 3.0h, and after the dropwise addition, the temperature was raised to 90 ℃, continue to keep warm for 40 minutes, then cool down to 40 ℃, after filtering and discharging, the long-chain monomer-modified polyacrylate emulsion is ob...

Embodiment 2

[0042] In a 250mL four-neck flask equipped with a stirrer, reflux condenser, and dropping funnel, add 2.4g of fatty alcohol polyoxyethylene ether sulfosuccinic monoester disodium (AEMES), 0.48g of alkylphenol polyoxyethylene Ether (OP-10) and 37.12g of deionized water, stirred and heated to 80°C in a water bath. Add 3.0 g of mixed monomers of methyl methacrylate, butyl acrylate and octadecyl acrylate and 3.0 g of azobisisobutylamidine hydrochloride (V-50) aqueous solution dropwise within 15 minutes, and the addition is complete Then continue to keep warm for 15 minutes. Then the remaining 27.0g V-50 aqueous solution and 27.0g methyl methacrylate, butyl acrylate and octadecyl acrylate mixed monomers were added dropwise in the four-necked flask within 3.0h, and after the dropwise addition, the temperature was raised to 90 ℃, continue to keep warm for 40min. The temperature was lowered to 40° C., and the long-chain monomer-modified polyacrylate emulsion was obtained after filte...

Embodiment 3

[0045] In a 250mL four-necked flask equipped with a stirrer, a reflux condenser, and a dropping funnel, add 2.0 g of fatty alcohol polyoxyethylene ether sodium sulfate (AES), 0.6 g of alkylphenol polyoxyethylene ether (OP-10) and 37.4g of deionized water, stirred and heated to 80°C in a water bath. Add 3.0 g of mixed monomers of methyl methacrylate, butyl acrylate and octadecyl acrylate and 3.0 g of azobisisobutylamidine hydrochloride (V-50) aqueous solution dropwise within 15 minutes, and the addition is complete Then continue to keep warm for 15 minutes. Then the remaining 27.0g V-50 aqueous solution and 27.0g methyl methacrylate, butyl acrylate and octadecyl acrylate mixed monomers were added dropwise in the four-necked flask within 3.0h, and after the dropwise addition, the temperature was raised to 90 ℃, continue to keep warm for 40min. The temperature was lowered to 40° C., and the long-chain monomer-modified polyacrylate emulsion was obtained after filtering out the m...

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Abstract

The invention discloses a long-chain monomer-modified polyacrylate emulsion, which comprises 1.0%-3.0% of anionic surfactant, 0.3%-0.9% of nonionic surfactant, 10%- 20% of acrylate monomers, 10% to 20% of methacrylate monomers, 0.3% to 3.0% of modified monomers and 0.06% to 0.24% of initiators, and the rest is water; the The modified monomer is a long-chain acrylate with side chain carbon atoms greater than 10. The polyacrylate emulsion modified by the above-mentioned long-chain monomer has a small particle size of latex particles, which expands the application field of the polyacrylate emulsion. The invention also discloses a preparation method of the polyacrylate emulsion modified by the above-mentioned long-chain monomer, which is semi-continuous seed emulsion polymerization with simple operation. The invention also discloses the application of the polyacrylate emulsion modified by the long-chain monomer in the preparation of paint.

Description

technical field [0001] The invention relates to the field of emulsions, in particular to a long-chain monomer-modified polyacrylate emulsion and a preparation method and application thereof. Background technique [0002] Fatty alcohol polyoxyethylene ether anionic surfactants have lower irritation than other anionic surfactants, excellent resistance to hard water and good biodegradability, and can be widely used in biology, medicine, leather and papermaking, etc. In the industry, it is a green and environmentally friendly emulsifier, which meets the current requirements for energy saving and environmental protection. [0003] Long-chain acrylate is a kind of alkyl acrylate with very long side chain (the number of carbon atoms in the side chain is greater than 10). It is a monomer substance with a comb-like structure and has a very low glass transition temperature (Tg ) and a longer hydrophobic carbon chain, as an oil-soluble monomer, it has good hydrophobicity. In addition...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/14C08F220/18C08F2/26C08F2/30C09D133/12
Inventor 陈立军陈大为
Owner ZHEJIANG UNIV OF TECH
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