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Polyethylene plastic packaging film for refreshment of Xueqing pear

A polyethylene plastic and packaging film technology, which is applied in the field of plastics, can solve the problems of waste of resources and increase costs, and achieve the effects of fast degradation, improved interface compatibility, and improved physical and mechanical properties

Inactive Publication Date: 2019-01-18
BENGBU WEIGUANG PLASTIC PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the existing polyethylene packaging film is used for the fresh-keeping packaging film of Xueqing pear, the shelf life of Xueqing pear is relatively short, which not only causes waste of resources, but also greatly increases the cost. Therefore, how to improve polyethylene packaging film and improve The shelf life of Xueqing pear is a technical problem that needs to be solved

Method used

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  • Polyethylene plastic packaging film for refreshment of Xueqing pear
  • Polyethylene plastic packaging film for refreshment of Xueqing pear
  • Polyethylene plastic packaging film for refreshment of Xueqing pear

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A polyethylene plastic packaging film that can be used for the preservation of Xueqing pear, which is made of the following components in parts by weight: polyethylene resin 75, zinc gel 6.5, cetearyl glucoside modified biodegradation agent 8. Nano Inorganic filler 12, plasticizer 1.3, acetyl tri-n-butyl citrate 0.5, heat stabilizer 0.3.

[0027] Further, the method for preparing the zinc gel is:

[0028] (1) Mix zinc sulfate, coagulant and polyol in a mass ratio of 3:7:12 uniformly, stir at 500r / min for 10 minutes, and then reflux at 75°C for 3.2 hours to obtain a mixed solution;

[0029] (2) Heat the mixture obtained above to 56°C, and then treat it under 500W ultrasonic waves for 2min, then add 6.5% of its mass fluorinating reagent to the treated mixture, and keep it in a water bath at 80°C at 800r / Stir at min speed for 3 hours to obtain a liquid sol; the fluorinating reagent is an aqueous solution of ammonium fluoride with a mass fraction of 20%;

[0030] (3) The liquid s...

Embodiment 2

[0044] A polyethylene plastic packaging film that can be used for the fresh-keeping of Xueqing pears, which is made of the following components in parts by weight: polyethylene resin 79, zinc gel 6.8, cetearyl glucoside modified biodegradation agent 10, nano Inorganic filler 15, plasticizer 1.8, acetyl tri-n-butyl citrate 0.7, heat stabilizer 0.5.

[0045] Further, the method for preparing the zinc gel is:

[0046] (1) Mix zinc sulfate, coagulant and polyol in a mass ratio of 3:7:12 uniformly, stir at 500r / min for 10 minutes, and then reflux at 75°C for 3.2 hours to obtain a mixed solution;

[0047] (2) Heat the mixture obtained above to 56°C, and then treat it under 500W ultrasonic waves for 2min, then add 6.5% of its mass fluorinating reagent to the treated mixture, and keep it in a water bath at 80°C at 800r / Stir at min speed for 3 hours to obtain a liquid sol; the fluorinating reagent is an aqueous solution of ammonium fluoride with a mass fraction of 20%;

[0048] (3) The liqui...

Embodiment 3

[0062] A polyethylene plastic packaging film that can be used for the preservation of Xueqing pear, which is made of the following components by weight: polyethylene resin 78, zinc gel 6.6, cetearyl glucoside modified biodegradation agent 9, nano Inorganic filler 13, plasticizer 1.5, acetyl tri-n-butyl citrate 0.6, heat stabilizer 0.4.

[0063] Further, the method for preparing the zinc gel is:

[0064] (1) Mix zinc sulfate, coagulant and polyol in a mass ratio of 3:7:12 uniformly, stir at 500r / min for 10 minutes, and then reflux at 75°C for 3.2 hours to obtain a mixed solution;

[0065] (2) Heat the mixture obtained above to 56°C, and then treat it under 500W ultrasonic waves for 2min, then add 6.5% of its mass fluorinating reagent to the treated mixture, and keep it in a water bath at 80°C at 800r / Stir at min speed for 3 hours to obtain a liquid sol; the fluorinating reagent is an aqueous solution of ammonium fluoride with a mass fraction of 20%;

[0066] (3) The liquid sol is all...

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Abstract

The invention discloses a polyethylene plastic packaging film for refreshment of Xueqing pears, and relates to the technical field of plastics. The polyethylene plastic packaging film is prepared fromthe following components: a polyethylene resin, zinc gel, a cetearyl glucoside modified biodegrading agent, a nano inorganic filler, a plasticizer, acetyl tri-n-butyl citrate and a heat stabilizer. The prepared polyethylene plastic packaging film has a lower water vapor permeation amount and a lower oxygen permeation amount, is convenient for refreshment of Xueqing pears, and is capable of greatly improving the shelf life of Xueqing pears.

Description

Technical field [0001] The invention belongs to the technical field of plastics, and specifically relates to a polyethylene plastic packaging film that can be used for fresh-keeping of snow pears. Background technique [0002] Xueqing pear is a variety cultivated by Zhejiang Agricultural University with "Snowflake" and "New Century" as its parents. It has the characteristics of white flesh, tender and crisp, less juicy residue, sweet taste and strong fragrance, and is deeply loved by consumers. The market prospect is very broad. [0003] When the existing polyethylene packaging film is used for the fresh-keeping packaging film of Xueqing pear, the shelf life of Xueqing pear is short, which not only causes waste of resources, but also greatly increases the cost. Therefore, how to improve the polyethylene packaging film and increase The shelf life of Xueqing pear is a technical problem that needs to be solved. Summary of the invention [0004] The purpose of the present invention is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L39/06C08K13/02C08K3/16C08K5/1545C08K3/26C08K5/11C08K5/098C08J5/18
CPCC08J5/18C08J2323/06C08J2439/06C08K3/26C08K5/098C08K5/11C08K5/1545C08K13/02C08K2003/168
Inventor 李维光杨永志
Owner BENGBU WEIGUANG PLASTIC PRODS
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