High-temperature steaming resistant and quick freezing resistant food packaging material and preparation method thereof

A packaging material and high temperature resistance technology, applied in the field of material science, can solve the problems of poor oxygen barrier ability, poor toughness of PP plastic box, low temperature resistance, etc., and achieve the effect of improving oxygen barrier ability, good sterilization effect and good airtightness

Pending Publication Date: 2016-04-20
ANLU XINXIN MACHINERY EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the deficiencies of PE and PP plastic products used for food storage mainly include the following points: 1) They are not resistant to high temperatures, and cannot heat and disinfect the food in plastic products at high temperatures. It is not suitable to heat food at a temperature above 120°C; 2) It is not resistant to low temperature and quick freezing. PP plastic becomes hard and brittle when it is below 5°C, and is easy to be damaged. Ordinary plastic boxes are easy to harden and crack; 3) Poor oxidation resistance, conventional PP or PE plastic boxes have relatively small density and poor oxygen barrier ability, and oxygen in the air is easy to enter, causing oxidative deterioration of the food in the box; 4) Poor toughness , conventional PP plastic boxes have poor toughness and may break when bumped or squeezed

Method used

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  • High-temperature steaming resistant and quick freezing resistant food packaging material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0031] The preparation of a high-temperature cooking and quick-freeze-resistant food packaging material, the homopolypropylene of 1000g, the random copolymerization polypropylene of 6000g and the high-density polyethylene of 1000g are fully stirred in the high-speed mixer, and the material temperature is raised to Stop stirring at 70°C, and the stirring speed is 700-1200rpm. Use an extruder to knead and extrude the stirred and mixed material to obtain a food packaging material that is resistant to high temperature cooking and quick freezing. The temperature of the feeding section is 190-210°C , the conveying section temperature is 210-240°C, the head temperature is 225-230°C, the homopolypropylene is Korean GSH710, the random copolymerization polypropylene is Yanshan Petrochemical B8101, and the high-density polyethylene is HDPE5502.

Embodiment 2

[0033] The preparation of a high-temperature cooking and quick-freeze-resistant food packaging material, the homopolypropylene of 1500g, the random copolymerization polypropylene of 6500g and the high-density polyethylene of 1500g are fully stirred in the high-speed mixer, and the material temperature is raised to Stop stirring at 80°C, and the stirring speed is 700-1200rpm. Use an extruder to knead and extrude the stirred and mixed material to obtain a food packaging material that is resistant to high temperature cooking and quick freezing. The temperature of the feeding section is 190-210°C , the conveying section temperature is 210-240°C, the head temperature is 225-230°C, the homopolypropylene is Korean GSH710, the random copolymerization polypropylene is Yanshan Petrochemical B8101, and the high-density polyethylene is HDPE5502.

Embodiment 3

[0035] The preparation of a high-temperature cooking and quick-freeze-resistant food packaging material, fully stirs 2000g homopolypropylene, 7000g random copolymer polypropylene and 2000g high-density polyethylene in a high-speed mixer, and the temperature of the material is raised to Stop stirring at 80°C, and the stirring speed is 700-1200rpm. Use an extruder to knead and extrude the stirred and mixed material to obtain a food packaging material that is resistant to high temperature cooking and quick freezing. The temperature of the feeding section is 190-210°C , the conveying section temperature is 210-240°C, the head temperature is 225-230°C, the homopolypropylene is SKH710 from South Korea, the random copolymerization polypropylene is Yanshan Petrochemical B8101, and the high-density polyethylene is HDPE5502.

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Abstract

The invention belongs to the field of material science, and in particular relates to a high-temperature steaming resistant and quick freezing resistant food packaging material and a preparation method thereof. The packaging material is prepared from the following substances in parts by weight: 10 to 20 parts of homo-polypropylene, 60 to 70 parts of polypropylene randon copolymer, and 10 to 20 parts of high-density polyethylene. The preparation method comprises two steps of stirring for uniform mixing and mixing extrusion. According to the method disclosed by the method, the three materials such as homo-polypropylene, polypropylene randon copolymer and high-density polyethylene are mixed according to a specific ratio, thus obtaining the high-temperature steaming resistant and quick freezing resistant food packaging material which has the characteristics of high-temperature resistance, quick freezing resistance, high oxygen insulation property, high toughness and the like.

Description

technical field [0001] The invention belongs to the field of material science, and in particular relates to a high-temperature cooking and quick-freezing-resistant food packaging material and a preparation method thereof. Background technique [0002] PE and PP plastic products are widely used in food packaging, especially as the pace of people's life continues to accelerate, the fast food industry uses a large number of PE and PP plastic boxes or bags every year to hold food. At present, the deficiencies of PE and PP plastic products used for food storage mainly include the following points: 1) They are not resistant to high temperatures, and cannot heat and disinfect the food in plastic products at high temperatures. It is not suitable to heat food at a temperature above 120°C; 2) It is not resistant to low temperature and quick freezing. PP plastic becomes hard and brittle when it is below 5°C, and is easy to be damaged. Ordinary plastic boxes are easy to harden and crac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/12C08L23/06
CPCC08L23/14C08L2201/08C08L2201/14C08L2205/03C08L2207/062C08L23/12C08L23/06
Inventor 高猛
Owner ANLU XINXIN MACHINERY EQUIP CO LTD
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