Antibacterial nano cuprous oxide/chitosan grafted polyacrylate emulsion as well as preparation method and application thereof

A technology of nano-cuprous oxide and polyacrylate emulsion, which is applied in the direction of antifouling/underwater coatings, coatings, paints containing biocides, etc., and can solve the problem that antibacterial polyacrylate materials are rare and have no literature and patent reports or public issues

Inactive Publication Date: 2021-04-30
蚌埠泰鑫材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research on antibacterial polyacrylate materials is still relatively rare, especially "antibacterial polyacrylate synthesized with nano-cuprous oxide, chitosan, and polylysine as raw materials and acrylic monomers" has not yet been published. There are literature and patent reports or publications

Method used

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  • Antibacterial nano cuprous oxide/chitosan grafted polyacrylate emulsion as well as preparation method and application thereof
  • Antibacterial nano cuprous oxide/chitosan grafted polyacrylate emulsion as well as preparation method and application thereof
  • Antibacterial nano cuprous oxide/chitosan grafted polyacrylate emulsion as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1 prepares antibacterial nano cuprous oxide / chitosan grafted polyacrylate emulsion

[0034] An antibacterial nano cuprous oxide / chitosan grafted polyacrylate emulsion, comprising the following raw materials in parts by mass:

[0035]

[0036] A preparation method of antibacterial nano cuprous oxide / chitosan grafted polyacrylate emulsion, comprising the following steps:

[0037] S1: Prepare modified nano-cuprous oxide: add vinyltrimethoxysilane dropwise to nano-cuprous oxide with an average particle size of 2nm, and stir for 0.5h to obtain modified nano-cuprous oxide;

[0038] S2: Preparation of reaction solution I: Add methyl methacrylate, hexafluorobutyl methacrylate, vinyl polysiloxane, and modified nano-cuprous oxide obtained in S1 into N-methylpyrrolidone, and ultrasonically disperse to obtain a reaction Liquid I;

[0039] S3: Preparation of reaction solution II: dissolving acrylic acid in deionized water, adding carboxymethyl chitosan and polylysine...

Embodiment 2

[0041] Example 2 Preparation of Antibacterial Nano Cuprous Oxide / Chitosan Grafted Polyacrylate Emulsion

[0042] An antibacterial nano cuprous oxide / chitosan grafted polyacrylate emulsion, comprising the following raw materials in parts by mass:

[0043]

[0044] A preparation method of antibacterial nano cuprous oxide / chitosan grafted polyacrylate emulsion, comprising the following steps:

[0045] S1: Prepare modified nano-cuprous oxide: add vinyltrimethoxysilane dropwise to nano-cuprous oxide with an average particle size of 4nm, and stir for 1 hour to obtain modified nano-cuprous oxide;

[0046] S2: Preparation of reaction solution I: Add methyl methacrylate, hexafluoroisopropyl methacrylate, vinyl polysiloxane and modified nano-cuprous oxide obtained in S1 into N-methylpyrrolidone, and ultrasonically disperse to obtain Reaction solution I;

[0047] S3: Preparation of reaction solution II: Dissolve acrylic acid in deionized water, add carboxymethyl chitosan and polylysin...

Embodiment 3

[0049] Example 3 Preparation of antibacterial nano cuprous oxide / chitosan grafted polyacrylate emulsion

[0050] An antibacterial nano cuprous oxide / chitosan grafted polyacrylate emulsion, comprising the following raw materials in parts by mass:

[0051]

[0052] A preparation method of antibacterial nano cuprous oxide / chitosan grafted polyacrylate emulsion, comprising the following steps:

[0053] S1: Prepare modified nano-cuprous oxide: add vinyltrimethoxysilane dropwise to nano-cuprous oxide with an average particle size of 6 nm, and stir for 1 hour to obtain modified nano-cuprous oxide;

[0054] S2: Preparation of reaction solution I: Add methyl methacrylate, dodecafluoroheptyl acrylate, vinyl polysiloxane and modified nano-cuprous oxide obtained in S1 into N-methylpyrrolidone, and ultrasonically disperse to obtain a reaction solution I;

[0055] S3: Preparation of reaction solution II: dissolving acrylic acid in deionized water, adding carboxymethyl chitosan and poly...

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Abstract

The invention discloses an antibacterial nano cuprous oxide / chitosan grafted polyacrylate emulsion as well as a preparation method and application thereof. The polyacrylate emulsion is prepared from the following raw materials in parts by mass: 40 to 60 parts of methyl methacrylate, 5 to 8 parts of acrylic acid, 10 to 15 parts of a fluorine-containing acrylate monomer, 5 to 10 parts of vinyl polysiloxane, 4 to 8 parts of nano cuprous oxide, 3 to 6 parts of vinyl trimethoxy silane, 10 to 15 parts of carboxymethyl chitosan, 1 to 3 parts of polylysine, 2 to 3 parts of EDC.HCl, 0.4 to 1 part of an initiator, 50 to 60 parts of N-methyl pyrrolidone and 40 to 50 parts of deionized water. The preparation method comprises the following steps: S1, preparing modified nano cuprous oxide; s2, preparing a reaction solution I; s3, preparing a reaction solution II; and S4, preparing the nano cuprous oxide / chitosan grafted polyacrylate emulsion. According to the invention, vinyl trimethoxy silane is used for modifying nano cuprous oxide for the first time, acrylic acid reacts with carboxymethyl chitosan and polylysine to introduce C = C, and then the product is further copolymerized with other monomers, so that polyacrylate is endowed with excellent hydrophobic, oleophobic, antibacterial and self-cleaning properties.

Description

technical field [0001] The invention belongs to the technical field of polyacrylate synthesis, and in particular relates to an antibacterial nano cuprous oxide / chitosan grafted polyacrylate emulsion, a preparation method and an application thereof. Background technique [0002] Nano-cuprous oxide is a kind of monovalent copper oxide, which is mainly used in ship antifouling paints, insecticides, etc., by releasing copper ions and -SH, -COOH, -OH and other groups in proteins in fungi or bacteria and -N 2 H ground state free radicals work, leading to the death of germs. At the same time, nano-Cu 2 O is also a typical P-type narrow-bandgap semiconductor with metal vacancy. Its bandgap is 2.17eV, and its absorption limit can reach 570nm. It can effectively absorb the visible light part of sunlight. Diamond-like structure with alternately connected pyramids, Cu 3d and O 2p The orbital hybridization of Cu and the Cu inside the crystal structure 2+ The defect greatly improves...

Claims

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Application Information

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IPC IPC(8): C08F292/00C08F285/00C08F220/14C08F220/24C08F291/12C08F291/08C08F291/16C08F220/06C09D5/14C09D5/16C09D151/00C09D151/10C09D151/08
CPCC08F251/00C08F283/04C08F283/124C08F285/00C08F292/00C09D5/14C09D5/1662C09D151/003C09D151/085C09D151/10C08F220/06C08F220/14C08F220/24C08F2500/26
Inventor 王文爽陈超
Owner 蚌埠泰鑫材料技术有限公司
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