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A kind of metal ion transfer carrier and its preparation method and application

A metal ion, transfer carrier technology, applied in the preparation of carboxylate, chemical instruments and methods, preparation of organic compounds, etc. problem, to achieve the effect of simple preparation method and low preparation cost

Active Publication Date: 2022-03-22
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pH of this method is limited, and it is not suitable for neutral or alkaline materials.
[0006] At present, polymer film-forming materials (such as water-based coating materials) generally have a pH of 6-9, and most metal ions will precipitate at this pH, and it is difficult to distribute evenly in the material

Method used

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  • A kind of metal ion transfer carrier and its preparation method and application
  • A kind of metal ion transfer carrier and its preparation method and application
  • A kind of metal ion transfer carrier and its preparation method and application

Examples

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Embodiment 1

[0046] This embodiment provides a method for preparing a metal ion transfer carrier, which includes the following steps in sequence:

[0047] (1) The water-soluble compound containing carboxyl group in the present embodiment is polyacrylic acid (PAA), and the weight-average molecular weight is 125000g / mol, and the preparation molar concentration is the polyacrylic acid aqueous solution of 48mmol / L;

[0048] (2) Dissolve zinc sulfate in water, add polyacrylic acid aqueous solution to prepare mixed solution, the molar concentration of metal zinc ions in the mixed solution is 20mmol / L, and mix well. Regulate the pH value of mixed solution with 2.5mol / L sodium hydroxide solution to be 7;

[0049] (3) Concentrate the mixed solution with a rotary evaporator to a zinc ion concentration of 50 mmol / L to obtain a metal ion transfer carrier.

Embodiment 2

[0051] This embodiment provides a method for preparing a metal ion transfer carrier, which includes the following steps in sequence:

[0052] (1) The water-soluble compound containing carboxyl group in the present embodiment is polyacrylic acid (PAA), and the weight-average molecular weight is 125000g / mol, and the preparation molar concentration is the polyacrylic acid aqueous solution of 55mmol / L;

[0053] (2) Dissolving zinc sulfate in water, adding it to polyacrylic acid aqueous solution to prepare a mixed solution, the molar concentration of zinc ions in the mixed solution is 25mmol / L, and mixed uniformly. Regulate the pH value of mixed solution with 2.5mol / L sodium hydroxide solution to be 8;

[0054] (3) Concentrate the mixed solution with a rotary evaporator until the concentration of zinc ions is 60 mmol / L to obtain a metal ion transfer carrier.

Embodiment 3

[0056] This embodiment provides a method for preparing a metal ion transfer carrier, which includes the following steps in sequence:

[0057] (1) The water-soluble compound containing carboxyl in the present embodiment is polyacrylic acid (PAA), and the weight-average molecular weight is 100000g / mol, and the preparation molar concentration is the polyacrylic acid aqueous solution of 65mmol / L;

[0058] (2) Dissolve copper sulfate in water, add polyacrylic acid aqueous solution to prepare a mixed solution, the molar concentration of copper ions in the mixed solution is 10mmol / L, and mix well. Regulate the pH value of mixed solution with 2.5mol / L sodium hydroxide solution to be 7;

[0059] (3) Concentrate the mixed solution with a rotary evaporator to a copper ion concentration of 60 mmol / L to obtain a metal ion transfer carrier.

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Abstract

The invention discloses a metal ion transfer carrier, its preparation method and application, and relates to the field of metal ion application. The metal ion transfer carrier is a mixed solution. The mixed solution includes a substrate and metal ions. The substrate and the metal ion are combined through coordination. The substrate is a water-soluble compound containing carboxyl groups. The molar ratio of the substrate to the metal ion in the mixed solution is 30‑200:5‑30. By adjusting the ratio of substrate (water-soluble compound containing carboxyl group) to metal ion, part of the carboxyl group of the water-soluble compound is combined with the metal ion through coordination, and another part of the carboxyl group of the water-soluble compound exists in the solution in a free form Thereby maintaining the water solubility of the metal ion transfer carrier in a wide pH range. Therefore, the metal ion transfer carrier provided by the present invention does not have the phenomenon of precipitation or uneven distribution of metal ions under neutral or alkaline conditions.

Description

technical field [0001] The invention relates to the application field of metal ions, in particular to a metal ion transfer carrier and its preparation method and application. Background technique [0002] Polymer film-forming material is a composite material that forms a film with a certain adhesive strength and mechanical strength on the surface of an article by coating, spraying, etc. to protect the article or endow the article with multiple functions. Agents, auxiliaries and media and other components. Therefore, polymer film-forming materials have a wide range of applications in the manufacturing industry, such as leather finishing materials, furniture finishing materials, rubber finishing materials, etc. [0003] Since most single-component polymer film-forming materials exhibit poor mechanical properties or single functions, multiple polymer film-forming materials are usually used in combination in practical applications. [0004] A commonly used method to improve th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F8/42C08F120/06C08B15/05C09D133/04C09D7/65C08J5/18C08L33/04C08L33/02C07C51/00C07C59/255C07C59/265
CPCC08F8/42C08B15/05C09D133/04C09D7/65C08J5/18C07C51/418C07C59/255C07C59/265C08J2333/04C08J2433/02C08F120/06C08L33/02
Inventor 朱明津石碧张琦弦
Owner SICHUAN UNIV
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