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A kind of polyethylene antibacterial film and its preparation method and application

A technology of polyethylene film and antibacterial film is applied in the field of polyethylene antibacterial film and its preparation, and achieves the effects of abundant substances, improved hydrophilicity and high product order.

Active Publication Date: 2021-05-18
ZHONGKAI UNIV OF AGRI & ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] At present, in the prior art, there is no research on introducing chitosan, lemon essential oil, etc. into PE film and obtaining good antibacterial effect by using layer-by-layer self-assembly technology, or applying it to cold fresh meat preservation, etc.

Method used

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  • A kind of polyethylene antibacterial film and its preparation method and application
  • A kind of polyethylene antibacterial film and its preparation method and application
  • A kind of polyethylene antibacterial film and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] The polyethylene antibacterial film provided in this embodiment is made up of polyethylene film, acrylic film and one deck chitosan-lemon essential oil composite film.

[0073] Wherein the polyethylene film is corona treated polyethylene film.

[0074] The acrylic film is a water-based acrylic film.

[0075] The preparation method of this polyethylene antibacterial film, comprises the following steps:

[0076] (1) Prepare chitosan solution: take 0.2g chitosan and dissolve it in the acetic acid solution of 2% (10mL), stir in a magnetic stirrer for 1 hour, and prepare 10mL concentration of 2% (w / v ) chitosan solution;

[0077] (2) Preparation of lemon essential oil solution: Dissolve 2 mL of lemon essential oil into 8 mL of deionized water with a pipette, and add 0.4% (w / v, the amount of Tween 80 accounts for 0.4% to 0.6% of the total volume of lemon essential oil and water) Tween 80, stirred in a magnetic stirrer for 1 hour, and was prepared into 10 mL of diluted lemo...

Embodiment 2

[0082] The difference from Example 1 is that the volume ratios of chitosan CTS:lemon essential oil in step (3) are 8:0, 6:2 and 0:8.

Embodiment 3

[0084] The difference from Example 1 is that the volume ratios of chitosan CTS:lemon essential oil in step (3) are 8:0, 2:6 and 0:8.

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Abstract

The invention discloses a polyethylene antibacterial film, which is composed of a polyethylene film, an acrylic film and at least one layer of chitosan-lemon essential oil composite film. Also disclosed are a preparation method of the polyethylene fresh-keeping film and an application of the polyethylene fresh-keeping film in preparing packaging materials with antibacterial effects and in keeping fresh meat fresh.

Description

technical field [0001] The invention belongs to the technical field of fresh-keeping film, and in particular relates to a polyethylene antibacterial film and its preparation method and application. Background technique [0002] PE is polyethylene. Polyethylene is the thermoplastic material with the largest output in plastics, and it is also the plastic variety with the largest amount at present. It has also played an important role in the field of food packaging in recent years. PE film itself has no antibacterial properties, and antimicrobial agents can be incorporated into PE films. However, the preparation of PE films by this method will be limited by the thermal stability of antimicrobial agents or incompatibility with polymers during extrusion. It is a better choice to modify the surface of PE film and then use coating technology. The common method of surface modification is plasma surface treatment. The effect of corona treatment is the same as that of plasma treatmen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/04C09D133/04C09D105/08C09D191/00C09D5/14B65D65/38C08L23/06
CPCB65D65/38C08J7/04C08J2323/06C08J2405/08C08J2433/04C08J2491/00
Inventor 肖乃玉何娟张海彤李湘銮张雪琴徐依斌翟万京张文
Owner ZHONGKAI UNIV OF AGRI & ENG
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