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A kind of anti-aging plastic packaging film and preparation method thereof

A packaging film and anti-aging technology, applied in the field of anti-aging plastic packaging film and its preparation, can solve the problems of packaging film aging, packaging film can not be used normally, easy to be damaged, etc.

Active Publication Date: 2022-08-02
安徽嘉美包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After the existing plastic packaging film is used for a long time, the packaging film will age, which reduces its own toughness and is prone to damage, making the packaging film unable to be used normally

Method used

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  • A kind of anti-aging plastic packaging film and preparation method thereof
  • A kind of anti-aging plastic packaging film and preparation method thereof
  • A kind of anti-aging plastic packaging film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] An anti-aging plastic packaging film, comprising the following raw materials by weight: 100 parts of polyvinyl chloride, 3 parts of magnesium stearate, 3 parts of anti-aging agent, 1 part of diethyl phthalate, and 2 parts of nano silicon dioxide;

[0066] The anti-aging plastic packaging film is made by the following steps:

[0067] Step S1: the polyvinyl chloride and magnesium stearate are stirred for 10min under the condition that the rotating speed is 300r / min to obtain the first mixture;

[0068] Step S2: the anti-aging agent and nano-silica are stirred for 3 minutes under the condition that the rotational speed is 500 r / min, then diethyl phthalate is added, and the stirring is continued for 10 minutes to obtain the second mixture;

[0069] Step S3: the first mixed material and the second mixed material are melted and stirred for 30 minutes under the conditions of a rotational speed of 1000 r / min and a temperature of 170° C. to obtain a molten material;

[0070] St...

Embodiment 2

[0079] An anti-aging plastic packaging film, comprising the following raw materials in parts by weight: 110 parts of polyvinyl chloride, 4 parts of magnesium stearate, 4 parts of anti-aging agent, 2 parts of diethyl phthalate, and 3 parts of nano-silica;

[0080] The anti-aging plastic packaging film is made by the following steps:

[0081] Step S1: the polyvinyl chloride and magnesium stearate are stirred for 15min under the condition that the rotating speed is 300r / min to obtain the first mixture;

[0082] Step S2: the anti-aging agent and nano-silica are stirred for 5 minutes under the condition of a rotating speed of 500 r / min, then diethyl phthalate is added, and the stirring is continued for 10 minutes to obtain the second mixture;

[0083] Step S3: the first mixed material and the second mixed material are melted and stirred for 40 min under the conditions of a rotational speed of 1200 r / min and a temperature of 170° C. to obtain a molten material;

[0084] Step S4: ad...

Embodiment 3

[0093] An anti-aging plastic packaging film, comprising the following raw materials by weight: 120 parts of polyvinyl chloride, 5 parts of magnesium stearate, 5 parts of anti-aging agent, 3 parts of diethyl phthalate, and 4 parts of nano-silica;

[0094] The anti-aging plastic packaging film is made by the following steps:

[0095] Step S1: the polyvinyl chloride and magnesium stearate are stirred for 15min under the condition that the rotating speed is 500r / min to obtain the first mixture;

[0096] Step S2: the anti-aging agent and nano-silica are stirred for 5 minutes under the condition of a rotating speed of 800 r / min, then diethyl phthalate is added, and the stirring is continued for 15 minutes to obtain the second mixture;

[0097] Step S3: the first mixed material and the second mixed material are melted and stirred for 40 min under the conditions of a rotational speed of 1200 r / min and a temperature of 190° C. to obtain a molten material;

[0098] Step S4: adding the ...

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Abstract

The invention discloses an anti-aging plastic packaging film and a preparation method thereof. The anti-aging plastic packaging film comprises the following raw materials in parts by weight: 100-120 parts of polyvinyl chloride, 3-5 parts of a dispersant, and 3-5 parts of an anti-aging agent , 1-3 parts of plasticizer, and 2-4 parts of nano-silicon dioxide; the anti-aging agent contains a large amount of hindered phenol and sulfur atoms, and the sulfur atoms are easily oxidized into sulfoxide and sulfone compounds, which makes the packaging film anti-aging In addition, a large number of active methylene groups can undergo condensation reactions with carbonyl compounds, and at the same time, intramolecular hydrogen bonds are broken, and the hydrogen bond rings are opened to form ionic compounds. The structure is unstable, and excess energy will be used to achieve a stable state. It is released with harmless heat energy, thereby restoring the hydrogen bond to its original state, thereby protecting the packaging film from photochemical reaction, and further enhancing the aging resistance of the packaging film.

Description

technical field [0001] The invention relates to the technical field of packaging film preparation, in particular to an aging-resistant plastic packaging film and a preparation method thereof. Background technique [0002] With the development of the economy and the adjustment of the industrial structure, the market demand for plastic films in various industries continues to rise. Films made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins for packaging and as lamination layers. The market share of plastic packaging and plastic packaging products is increasing, especially the composite plastic flexible packaging, which has been widely used in food, medicine, chemical and other fields, bringing great convenience to people's lives. [0003] After the existing plastic packaging film is used for a long time, the packaging film will be aged, which reduces its own toughness and is prone to breakage, so that the packaging film cannot be used normally...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L91/06C08K13/02C08K3/36C08K5/12C08K5/098C08J5/18
CPCC08J5/18C08J2327/06C08J2491/06C08K13/02C08K3/36C08K5/12C08K5/098
Inventor 汪连生
Owner 安徽嘉美包装有限公司