Antibacterial hydrophobic dendritic polyacrylate emulsion and preparation method thereof

A technology of polyacrylate emulsion and dodecafluoroheptyl acrylate is applied in the field of antibacterial and hydrophobic dendritic polyacrylate emulsion and its preparation, and achieves the effects of improving crosslinking density, improving structural stability and anti-light aging performance.

Inactive Publication Date: 2021-06-15
朱浩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dendritic polyacrylate is a dendritic polymer with polyacrylate as the main chain, which has the characteristics of good hydrodynamic properties, high solubility, high reactivity, etc. At present, the research and reports on dendritic polyacrylate are relatively few. Few, the research and development of functional dendritic polyacrylates or the functional modification of dendritic polyacrylates is a blank in the field of organic synthesis in China

Method used

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  • Antibacterial hydrophobic dendritic polyacrylate emulsion and preparation method thereof
  • Antibacterial hydrophobic dendritic polyacrylate emulsion and preparation method thereof
  • Antibacterial hydrophobic dendritic polyacrylate emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] An antibacterial hydrophobic dendritic polyacrylate emulsion, comprising the following raw materials in parts by mass:

[0032]

[0033] A preparation method for antibacterial hydrophobic dendritic polyacrylate emulsion, comprising the following steps:

[0034] S1: Catalyst preparation: DMAP, HOAT, and polyaniline doped with p-toluenesulfonic acid were uniformly mixed at a mass ratio of 1:0.6:1.5 to obtain a catalyst;

[0035] S2: Preparation of modified nano zirconium phosphate:

[0036] i: Ag + / Zn 2+ Modification: immerse nano zirconium phosphate in 0.02mol / L AgNO 3 and 0.01mol / L Zn(NO 3 ) 2 In the mixed solution, control the solid-liquid ratio to 1g / 10mL, sonicate for 0.5h, filter, and vacuum-dry to obtain Ag + / Zn 2+ Modified nano zirconium phosphate;

[0037] ii: intercalation modification: the Ag + / Zn 2+ Add the modified nano-zirconium phosphate to the aqueous solution with a mass fraction of 5% dodecylguanidine acetate, control the solid-liquid rat...

Embodiment 2

[0042] An antibacterial hydrophobic dendritic polyacrylate emulsion, comprising the following raw materials in parts by mass:

[0043]

[0044] A preparation method for antibacterial hydrophobic dendritic polyacrylate emulsion, comprising the following steps:

[0045] S1: Preparation of catalyst: DMAP, HOAT, and p-aminobenzenesulfonic acid-doped polyaniline were uniformly mixed at a mass ratio of 1:0.8:1.75 to obtain a catalyst;

[0046] S2: Preparation of modified nano zirconium phosphate:

[0047] i: Ag + / Zn 2+ Modification: immerse nano zirconium phosphate in 0.06mol / L AgNO 3 and 0.03mol / L Zn(NO 3 ) 2 In the mixed solution of , control the solid-liquid ratio to 1g / 12.5mL, ultrasonically treat for 1h, filter, and vacuum-dry to obtain Ag + / Zn 2+ Modified nano zirconium phosphate;

[0048] ii: intercalation modification: the Ag + / Zn 2+ Add the modified nano-zirconium phosphate to the aqueous solution with a mass fraction of 7.5% polyhexamethylene biguanide, con...

Embodiment 3

[0053] An antibacterial hydrophobic dendritic polyacrylate emulsion, comprising the following raw materials in parts by mass:

[0054]

[0055]

[0056] A preparation method for antibacterial hydrophobic dendritic polyacrylate emulsion, comprising the following steps:

[0057] S1: Catalyst preparation: DMAP, HOAT, and phosphotungstic acid doped polyaniline were evenly mixed at a mass ratio of 1:1:2 to obtain a catalyst;

[0058] S2: Preparation of modified nano zirconium phosphate:

[0059] i: Ag + / Zn 2+ Modification: immerse nano zirconium phosphate in 0.1mol / L AgNO 3 and 0.05mol / L Zn(NO 3 ) 2 In the mixed solution, control the solid-liquid ratio to 1g / 15mL, ultrasonically treat for 2h, filter, and vacuum-dry to obtain Ag + / Zn 2+ Modified nano zirconium phosphate;

[0060] ii: intercalation modification: the Ag + / Zn 2+ Add the modified nano-zirconium phosphate to an aqueous solution with a mass fraction of 10% polyhexamethylene biguanide hydrochloride, cont...

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Abstract

The invention discloses an antibacterial hydrophobic dendritic polyacrylate emulsion and a preparation method thereof. The polyacrylate emulsion comprises the following raw materials in parts by mass: 60-80 parts of methyl methacrylate, 30-50 parts of acrylic acid, 15-25 parts of a fluorine-containing acrylate monomer, 10-15 parts of vinyl silicone oil, 10-15 parts of heptanol, 15-25 parts of pentaethylenehexamine, 1.5-3 parts of a catalyst, 1-2 parts of an initiator, 20-30 parts of modified nano zirconium phosphate, 3-4 parts of allyloxy nonylphenoxy propanol polyoxyethylene ether ammonium sulfate and 120-200 parts of deionized water. According to the preparation method, heptanol and pentaethylenehexamine are used as inner cores for the first time, esterification reaction and amidation reaction are carried out on the inner cores and -COOH in an acrylic monomer, addition polymerization is carried out on the inner cores, methyl methacrylate and a fluorine-containing acrylate monomer under the action of an initiator, and a fluorine-containing polyacrylate branched chain inner shell is formed; and further graft copolymerization with vinyl silicone oil and modified nano zirconium phosphate is implemented to form the antibacterial, anti-aging and hydrophobic dendritic polyacrylate emulsion with a core-inner shell-outer shell structure.

Description

technical field [0001] The invention belongs to the field of polymer synthesis, and in particular relates to an antibacterial hydrophobic dendritic polyacrylate emulsion and a preparation method thereof. Background technique [0002] Dendrimers, also known as branched polymers, are linear polymers with dendrons on each repeating unit, similar in topology to hyperbranched polymers. Dendritic polyacrylate is a special graft polymer with polyacrylate as the main chain. It has a molecular imitation sphere structure, more active end groups are exposed, and the crosslinking density is high. It is the most promising high surface protection film. one of the materials. Dendritic polyacrylate is a dendritic polymer with polyacrylate as the main chain, which has the characteristics of good hydrodynamic properties, high solubility, and high reactivity. At present, the research and reports on dendritic polyacrylate are relatively few. Few, the research and development of functional den...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00
CPCC08G83/001
Inventor 朱浩
Owner 朱浩
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