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Preparation method of copper ionchelated polymer and antibacterial barrier composite paper/paperboard thereof

A technology of ionic polymers and chelated copper, which is applied in papermaking, paper, textiles and papermaking, etc., can solve the problems of high price and uneconomical antibacterial paper, and achieve the effect of preparing novel, unique and unique antibacterial barrier performance

Pending Publication Date: 2021-05-14
SHANGHAI WANGE IND & TRADING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Obviously, the price of the antibacterial paper prepared by this method is relatively high, which is not economical enough.

Method used

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  • Preparation method of copper ionchelated polymer and antibacterial barrier composite paper/paperboard thereof
  • Preparation method of copper ionchelated polymer and antibacterial barrier composite paper/paperboard thereof

Examples

Experimental program
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Embodiment 1

[0049] This embodiment provides a preparation method of a chelated copper ion polymer.

[0050] A preparation method for a chelated copper ion polymer, specifically comprising the steps of:

[0051] Polyethyleneimine is dissolved in ethanol to make polyethyleneimine ethanol solution;

[0052] Add copper sulfate in the polyethyleneimine ethanol solution, stir and filter to obtain the chelated copper ion polyethyleneimine ethanol solution;

[0053] Add polyvinyl butyral (English abbreviation: PVB) to the ethanol solution of chelated copper ion polyethyleneimine, and then heat up under stirring to carry out grafting reaction to prepare chelated copper ion polyethyleneimine grafted polymer. Vinyl butyral polymer solution;

[0054] Wash and dry the chelated copper ion polyethyleneimine grafted polyvinyl butyral polymer solution with water to obtain a chelated copper ion polyethyleneimine grafted polyvinyl butyral polymer solid, which is chelated Copper ion polymer.

[0055] In ...

Embodiment 2

[0070] This embodiment provides an antibacterial barrier composite paper / cardboard.

[0071] An antibacterial barrier composite paper / paperboard, wherein:

[0072] Antibacterial barrier composite paper is made of chelated copper ion polymer by extrusion coating on the surface of paper / cardboard to form a dense layer of chelated copper ion polymer film on the surface of paper / cardboard ;and

[0073] The chelated copper ion polymer is prepared by the preparation method provided in the above-mentioned embodiment 1.

[0074] In the antibacterial barrier composite paper / cardboard provided in this embodiment, the film formed by coating the paper / cardboard with a chelated copper ion polymer has a thickness of 15-50 μm.

[0075] Further, during the preparation process of the antibacterial barrier composite paper / cardboard provided in this example, during the laminating operation, the temperature of the membrane area of ​​the membrane head is controlled between 280 and 320°C, and the...

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Abstract

The invention provides a preparation method of a copper ion chelated polymer and antibacterial barrier composite paper thereof. The preparation method of the copper ion chelated polymer comprises the steps that polyethyleneimine is dissolved in ethyl alcohol to prepare a polyethyleneimine ethyl alcohol solution, copper sulfate is added into the polyethyleneimine ethyl alcohol solution to prepare a copper ion chelated polyethyleneimine ethyl alcohol solution, then polyvinyl butyral is added for a grafting reaction, and a copper ion chelated polyethyleneimine grafted polyvinyl butyral polymer is prepared; and the prepared copper ion chelated polyethyleneimine grafted polyvinyl butyral polymer, namely the copper ion chelated polymer, is applied onto the surface of body paper / paperboard in an extrusion coating manner, so that a compact copper ion chelated polymer film is formed. The composite paper / paperboard which has broad-spectrum antibacterial / bacteriostatic performance, good waterproof performance and thermal stability and high binding force with the paper / paperboard can be prepared, a novel, low-price and high-quality packaging material is provided for the packaging industry, and development of the packaging industry is promoted.

Description

technical field [0001] The invention relates to a preparation method of a chelated copper ion polymer and an antibacterial barrier composite paper, belonging to the technical field of production and preparation of antibacterial barrier composite paper / cardboard. Background technique [0002] With the development of the commodity economy, the use of commodity packaging paper and its packaging cardboard is increasing and the scope of use is becoming wider and wider. [0003] A large part of the existing packaging paper and its packaging cardboard, such as corrugated paper and corrugated cardboard, have high air permeability and moisture permeability, high fiber porosity, and hygroscopicity. Very strong, due to the high air permeability and moisture permeability of this kind of packaging paper or cardboard, it is easy to absorb bacteria, and because the fiber porosity of this kind of paper or cardboard is very large, external bacteria can enter through the gaps. or the inside ...

Claims

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Application Information

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IPC IPC(8): D21H21/36D21H23/50
CPCD21H21/36D21H23/50
Inventor 李迈骐纪波印
Owner SHANGHAI WANGE IND & TRADING CO