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Environmentally friendly antibacterial plastic film and preparation technology thereof

A plastic film, an environmentally friendly technology, applied in the field of plastic film, can solve the problems of non-antibacterial, affecting plant growth, pollution, etc., to achieve the effect of improving the two-phase interface, improving mechanical properties, and increasing strength

Inactive Publication Date: 2019-11-29
安徽超星新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, it is accompanied by the pollution of plastic film to the environment. Because the components of ordinary plastic film are difficult to decompose, they will stay in the soil for a long time, affecting plant growth, polluting the environment, and have no antibacterial properties.

Method used

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  • Environmentally friendly antibacterial plastic film and preparation technology thereof

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preparation example Construction

[0045] The preparation technology of this plastic film comprises the steps:

[0046] The first step, polyethylene, poly-β-hydroxybutyric acid, modified bamboo powder, polyethylene wax, iron stearate, antioxidant and plasticizer are put into the internal mixer according to the ratio of parts by weight for mixing, Set the working temperature of the internal mixer to 175-185°C, the speed to 60-80r / min, and the mixing time to 12-15min;

[0047] In the second step, after the blended material is evenly mixed in the internal mixer, it is put into a single-screw film blowing machine for film blowing to obtain a film matrix. The temperature of the single-screw film blowing machine is set to 170°C in the first zone, The temperature is 190°C, the temperature in the third zone is 190°C, the temperature in the fourth zone is 190°C, and the temperature in the fifth zone is 180°C;

[0048] The third step is to paste the film substrate on the glass plate of the wire rod coater and fix it, an...

Embodiment 1

[0050] An environment-friendly antibacterial plastic film, comprising a film base and a bacteriostatic layer coated on one side of the film base; wherein, the film base is made of the following raw materials in parts by weight: 60 parts of polyethylene, 20 parts of poly-β-hydroxybutyric acid , 3 parts of modified bamboo powder, 5 parts of polyethylene wax, 2 parts of iron stearate, 1 part of antioxidant, 1 part of plasticizer;

[0051] The antibacterial layer is formed by coating the antibacterial film liquid on the surface of the film substrate;

[0052] This plastic film is made by following steps:

[0053] The first step, polyethylene, poly-β-hydroxybutyric acid, modified bamboo powder, polyethylene wax, iron stearate, antioxidant and plasticizer are put into the internal mixer according to the ratio of parts by weight for mixing, Set the working temperature of the internal mixer to 175°C, the speed to 60r / min, and the mixing time to 12min;

[0054] In the second step, af...

Embodiment 2

[0057] An environment-friendly antibacterial plastic film, comprising a film base and a bacteriostatic layer coated on one side of the film base; wherein, the film base is made of the following raw materials in parts by weight: 65 parts of polyethylene, 25 parts of poly-β-hydroxybutyric acid , 3.5 parts of modified bamboo powder, 6.5 parts of polyethylene wax, 2.5 parts of iron stearate, 1.5 parts of antioxidant, 1.5 parts of plasticizer;

[0058] The antibacterial layer is formed by coating the antibacterial film liquid on the surface of the film substrate;

[0059] This plastic film is made by following steps:

[0060] The first step, polyethylene, poly-β-hydroxybutyric acid, modified bamboo powder, polyethylene wax, iron stearate, antioxidant and plasticizer are put into the internal mixer according to the ratio of parts by weight for mixing, Set the working temperature of the internal mixer to 180°C, the speed to 70r / min, and the mixing time to 13min;

[0061] In the sec...

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Abstract

The invention discloses an environmentally friendly antibacterial plastic film, which comprises a film matrix and an antibacterial layer covered on the surface of one side of the film matrix. The filmmatrix is prepared from following raw materials in parts by weight: 60 to 70 parts of polyethylene, 20 to 30 parts of poly(beta-hydroxybutyric acid), 3 to 4 parts of modified bamboo powder, 5 to 8 parts of polyethylene wax, 2 to 3 parts of iron stearate, 1 to 2 parts of an antioxidant, and 1 to 2 parts of a plasticizer. The antibacterial layer is formed by painting an antibacterial liquid on thesurface of the film matrix. The invention further discloses a preparation technology of the plastic film. Polyethylene and poly(beta-hydroxybutyric acid) are taken as the film matrix; under the actionof iron stearate, poly(beta-hydroxybutyric acid) can effectively exert the biodegradation performance and a photo degradation performance; then modified bamboo powder is added to enhance the mechanical properties and strength; the antibacterial liquid is painted on the surface of the film matrix to form the antibacterial layer, which has an excellent antibacterial performance, at the same time, the binding force between the antibacterial layer and the film matrix is also enhanced; and the integrity of the plastic film is improved.

Description

technical field [0001] The invention belongs to the technical field of plastic films, and in particular relates to an environment-friendly antibacterial plastic film and a preparation process thereof. Background technique [0002] Plastic films are films made of polyvinyl chloride, polyethylene, polypropylene, polystyrene, and other resins that are used for packaging and as laminations. Plastic packaging and plastic packaging products are taking an increasing share in the market, especially composite plastic flexible packaging, which has been widely used in food, medicine, chemical and other fields. At the same time, it is accompanied by the pollution of the environment by plastic films. Because the components of ordinary plastic films are difficult to decompose, they will stay in the soil for a long time, affecting plant growth, polluting the environment, and do not have antibacterial properties. [0003] The invention patent with the patent number CN201310550251.2 disclos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L67/04C08L97/02C09D5/14C09D101/10C08J7/04
CPCC08J2323/06C08J2367/04C08J2397/02C08J2401/02
Inventor 姜俊杰张哲张玉勇姜浩刘磊
Owner 安徽超星新材料科技有限公司
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