Polyethylene master batch for packaging bags and preparation method thereof

A technology for polyethylene and packaging bags, which is applied in the field of polyethylene masterbatch for packaging bags and its preparation, can solve the problems of poor anti-oxidative and fresh-keeping performance and cannot be used, and achieves the advantages of extending service life, improving mechanical properties and reducing photoaging effect Effect

Inactive Publication Date: 2016-12-07
叶剑
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this invention has the problem of poor anti-oxidation an

Method used

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  • Polyethylene master batch for packaging bags and preparation method thereof

Examples

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Comparison scheme
Effect test

Example Embodiment

[0028] Example 1

[0029] Follow the steps below to prepare polyethylene masterbatch for packaging bags:

[0030] (A) Wash the oats with distilled water and dry in the shade, place them in a vacuum drying oven at 60°C for 5 hours, take them out and add them to a pulverizer to pulverize, then pass through an 80-mesh sieve to obtain oat flour;

[0031] (B) Add the oat flour obtained in step (1) to a 66% ethanol solution, the material-to-liquid ratio of the oat flour to the ethanol solution is 1:10g / mL, mix well and place it in a microwave with a microwave power of 600W In the heater, microwave radiation extraction for 20 minutes, suction filtration after the completion of the extraction, the obtained extract is placed on a rotary evaporator to recover ethanol to obtain a crude oat extract;

[0032] (C) The oat extract obtained in step (2) was eluted with distilled water to remove sugar, and then eluted with a 66% ethanol solution. The eluate was evaporated under reduced pressure at 45°C...

Example Embodiment

[0036] Example 2

[0037] Follow the steps below to prepare polyethylene masterbatch for packaging bags:

[0038] (A) Wash the oats with distilled water and dry in the shade, place them in a vacuum drying oven at 60°C for 5 hours, take them out and add them to a pulverizer to pulverize, then pass through an 80-mesh sieve to obtain oat flour;

[0039] (B) Add the oat flour obtained in step (1) to a 66% ethanol solution, the material-to-liquid ratio of the oat flour to the ethanol solution is 1:10g / mL, mix well and place it in a microwave with a microwave power of 600W In the heater, microwave radiation extraction for 20 minutes, suction filtration after the completion of the extraction, the obtained extract is placed on a rotary evaporator to recover ethanol to obtain a crude oat extract;

[0040] (C) The oat extract obtained in step (2) was eluted with distilled water to remove sugar, and then eluted with a 66% ethanol solution. The eluate was evaporated under reduced pressure at 45°C...

Example Embodiment

[0044] Example 3

[0045] Follow the steps below to prepare polyethylene masterbatch for packaging bags:

[0046] (A) Wash the oats with distilled water and dry in the shade, place them in a vacuum drying oven at 60°C for 5 hours, take them out and add them to a pulverizer to pulverize, then pass through an 80-mesh sieve to obtain oat flour;

[0047] (B) Add the oat flour obtained in step (1) to a 66% ethanol solution, the material-to-liquid ratio of the oat flour to the ethanol solution is 1:10g / mL, mix well and place it in a microwave with a microwave power of 600W In the heater, microwave radiation extraction for 20 minutes, suction filtration after the completion of the extraction, the obtained extract is placed on a rotary evaporator to recover ethanol to obtain a crude oat extract;

[0048] (C) The oat extract obtained in step (2) was eluted with distilled water to remove sugar, and then eluted with a 66% ethanol solution. The eluate was evaporated under reduced pressure at 45°C...

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Abstract

The invention provides a polyethylene master batch for packaging bags and a preparation method thereof. The preparation method generally comprises the following steps: (A) cleaning oat, drying in the shade, drying, pulverizing, and screening to obtain oat flour; (B) carrying out microwave radiation extraction on the oat flour with ethanol in a microwave heater to obtain an oat crude extract; (C) carrying out purification treatment on the oat crude extract to obtain an oat extract; (D) carbonizing oat hulls, and treating with a sodium hydroxide solution to obtain oat hull porous carbon powder; (E) mixing the oat extract with the oat hull porous carbon powder to obtain an oat composite; and (F) mixing the polyethylene, other components and oat composite, and extruding to obtain the polyethylene master batch for packaging bags. The polyethylene master batch has favorable oxygen resistance and preservation property, and can be used for food packaging bags.

Description

Technical field: [0001] The invention relates to a polyethylene masterbatch, in particular to a polyethylene masterbatch used for packaging bags and a preparation method thereof. Background technique: [0002] Packaging bags refer to bags used to pack various supplies, which make the goods convenient to transport and store during the production and circulation process, and are widely used in daily life and industrial production. Studies have shown that 80% of used plastic bags are eventually transported to landfills like general garbage, and only 7% of plastics are recycled. According to the production process, it is often divided into plastic packaging bags and composite packaging bags. According to the classification of production materials, it includes: high-pressure polyethylene plastic bags, low-pressure polyethylene plastic bags, polypropylene plastic bags, polyvinyl chloride plastic bags, etc. Classified by shape: vest bag, straight bag, three-dimensional bag, squar...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K13/02C08K3/04C08K5/00C08K5/20C08K5/09C08K5/526C08K5/053B29C47/92B29C48/92
CPCC08K13/02B29C48/92B29C2948/92704C08K3/04C08K5/005C08K5/053C08K5/09C08K5/20C08K5/526C08L23/06
Inventor 叶剑
Owner 叶剑
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