Preparation method of PE antibiotic food preservation film

A technology for food preservation and antibacterial masterbatch, which is applied in the field of chemical materials to achieve the effects of simple preparation process, long antibacterial time and lasting effect

Inactive Publication Date: 2014-03-05
ANHUI IND & TRADE VOCATIONAL TECHN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the discoloration problem of silver ion inorganic antibacterial agents has been difficult to solve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method of PE antibacterial food preservation film, comprising the steps of:

[0020] (1) Granulation of antibacterial masterbatch:

[0021] Take each component of the antibacterial masterbatch and granulate it in a twin-screw extruder. The temperatures in the first to fifth zones are 125°C, 155°C, 160°C, 170°C, and 170°C, and the head temperature is 160°C. 20~40r / min;

[0022] (2), blown film:

[0023] Put the antibacterial masterbatch granules in step (1) in the extrusion blown film machine, the extrusion granulation temperature is 125°C, 150°C, 165°C, 160°C, the speed is 20-40r / min; the blown film temperature is 140 °C, 160 °C, 185 °C, 180 °C, the rotation speed is 30~40r / min.

[0024] The parts by weight of each component of the above-mentioned antibacterial masterbatch are as follows:

[0025] PE resin 90 parts

[0026] Silver ion antibacterial agent 15 parts

[0027] Lubricant calcium stearate 7 parts

[0028] Natural hydrotalcite 3 parts

[0...

Embodiment 2

[0038] A preparation method of PE antibacterial food preservation film, comprising the steps of:

[0039] (1) Granulation of antibacterial masterbatch:

[0040] Take each component of the antibacterial masterbatch and granulate it in a twin-screw extruder. The temperatures in the first to fifth zones are 125°C, 155°C, 160°C, 170°C, and 170°C, and the head temperature is 160°C. 20~40r / min;

[0041] (2), blown film:

[0042] Put the antibacterial masterbatch granules in step (1) in the extrusion blown film machine, the extrusion granulation temperature is 125°C, 150°C, 165°C, 160°C, the speed is 20-40r / min; the blown film temperature is 140 °C, 160 °C, 185 °C, 180 °C, the rotation speed is 30~40r / min.

[0043] The parts by weight of each component of the above-mentioned antibacterial masterbatch are as follows:

[0044] PE resin 100 parts

[0045] Silver ion antibacterial agent 20 parts

[0046] Lubricant calcium stearate 10 parts

[0047] Natural hydrotalcite 5 parts

...

Embodiment 3

[0057] A preparation method of PE antibacterial food preservation film, comprising the steps of:

[0058] (1) Granulation of antibacterial masterbatch:

[0059] Take each component of the antibacterial masterbatch and granulate it in a twin-screw extruder. The temperatures in the first to fifth zones are 125°C, 155°C, 160°C, 170°C, and 170°C, and the head temperature is 160°C. 20~40r / min;

[0060] (2), blown film:

[0061] Put the antibacterial masterbatch granules in step (1) in the extrusion blown film machine, the extrusion granulation temperature is 125°C, 150°C, 165°C, 160°C, the speed is 20-40r / min; the blown film temperature is 140 °C, 160 °C, 185 °C, 180 °C, the rotation speed is 30~40r / min.

[0062] The parts by weight of each component of the above-mentioned antibacterial masterbatch are as follows:

[0063] PE resin 80 parts

[0064]Silver ion antibacterial agent 10 parts

[0065] Lubricant calcium stearate 5 parts

[0066] Natural hydrotalcite 2 parts

[00...

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Abstract

The invention discloses a preparation method of a PE antibiotic food preservation film. The preparation method comprises the following steps: (1) granulating antibiotic master batch; (2) film blowing. The preparation method has the advantage of simple technology, and the properties of the prepared preservation film such as color ability, antibiotic property, physical and mechanical property, and anti-aging property all meet the corresponding standards.

Description

technical field [0001] The invention belongs to the field of chemical materials and relates to a preparation method of PE antibacterial food preservation film. Background technique [0002] Antibacterial plastics refer to the addition of one or several specific antibacterial agents to plastics to make plastics inherently antibacterial. Kill or inhibit the reproduction of bacteria on the surface of its products. Compared with conventional chemical and physical disinfection methods, the use of antibacterial plastics for sterilization is efficient, long-lasting, economical and convenient. [0003] At present, the antibacterial agents used in plastics are mainly three series: organic, inorganic and natural. Inorganic antibacterial agents are widely used in antibacterial plastics due to their long antibacterial effect and high temperature resistance, which can adapt to plastic processing. Silver zeolite is currently the most commonly used inorganic antibacterial agent for plas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L33/12C08L23/28C08K13/06C08K9/00C08K3/00C08K5/12C08K5/11C08K5/09C08K5/098C08K5/01B29C47/92B29C55/28B29C48/92
CPCB29C48/04B29C48/875B29C48/92B29C2948/92704B29C2948/92895B29C2948/92904C08K13/06B29B9/06B29C48/0018B29C2948/9258C08J5/18C08J2323/06C08K3/015C08K3/26C08K9/12C08L23/06C08L2201/08C08L2203/16C08L51/04C08L23/286C08L23/30C08L91/06
Inventor 方蕊
Owner ANHUI IND & TRADE VOCATIONAL TECHN COLLEGE
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