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Antibacterial photo-degradation composite film as well as preparation method thereof and application thereof

A composite film and photodegradation technology, applied in the field of composite film, can solve the problems of poor mechanical performance, antibacterial performance and photodegradation performance, and achieve the effect of increasing photodegradation rate, improving comprehensive performance and excellent mechanical performance

Inactive Publication Date: 2019-05-14
LIAOYANG BOSHI FLUID EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the first purpose of the embodiment of the present invention is to provide an antibacterial photodegradable composite film to solve the problem that the antibacterial polymer film in the prior art has certain toxicity and has poor mechanical properties, antibacterial properties and photodegradable properties.

Method used

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  • Antibacterial photo-degradation composite film as well as preparation method thereof and application thereof
  • Antibacterial photo-degradation composite film as well as preparation method thereof and application thereof
  • Antibacterial photo-degradation composite film as well as preparation method thereof and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 1. Antibacterial photodegradable composite film

[0044] Above-mentioned composite film is prepared by comprising following raw materials:

[0045] Modified Nano TiO 2 20 parts, 2.5 parts of potassium sorbate, 10 parts of calcium propionate, 15 parts of Span80, 105 parts of LLDPE and 16 parts of HDPE.

[0046] 2. Preparation method

[0047] Above-mentioned preparation method comprises the steps:

[0048](a) Modified nano-TiO 2 , Potassium sorbate, Calcium propionate, Span80 and LLDPE were placed in a high mixer and mixed for 30 minutes, left to stand for 20 hours, and then obtained nano-modified composite masterbatch by twin-screw extrusion and granulation; the granulation molding temperature was 150°C ;

[0049] (b) Mixing the nano-modified composite masterbatch with HDPE, and blow molding it with an extrusion blown film system to obtain an antibacterial and photodegradable composite film; wherein, the blow molding temperature is 190°C; the die temperature is 175°...

Embodiment 2

[0051] 1. Antibacterial photodegradable composite film

[0052] Above-mentioned composite film is prepared by comprising following raw materials:

[0053] Modified Nano TiO 2 2 parts, 10 parts of potassium sorbate, 2.5 parts of calcium propionate, 5 parts of Span80, 95 parts of LLDPE and 10 parts of HDPE.

[0054] 2. Preparation method

[0055] Above-mentioned preparation method comprises the steps:

[0056] (a) Modified nano-TiO 2 , Potassium sorbate, Calcium propionate, Span80 and LLDPE were placed in a high mixer and mixed for 30 minutes, left to stand for 28 hours, and then obtained nano-modified composite masterbatch by twin-screw extrusion and granulation; the granulation molding temperature was 170°C ;

[0057] (b) Mix the nano-modified composite masterbatch with HDPE, and blow mold it with an extrusion blown film system to obtain an antibacterial and photodegradable composite film; wherein, the blow molding temperature is 170°C; the die temperature is 185°C.

Embodiment 3

[0059] 1. Antibacterial photodegradable composite film

[0060] Above-mentioned composite film is prepared by comprising following raw materials:

[0061] Modified Nano TiO 2 10 parts, potassium sorbate 5 parts, calcium propionate 5 parts, Span80 10 parts, LLDPE 100 parts and HDPE 13 parts.

[0062] 2. Preparation method

[0063] Above-mentioned preparation method comprises the steps:

[0064] (a) Modified nano-TiO 2 , Potassium sorbate, Calcium propionate, Span80 and LLDPE were placed in a high mixer and mixed for 30 minutes, left to stand for 24 hours, and then obtained nano-modified composite masterbatch by twin-screw extrusion and granulation; the granulation molding temperature was 160°C ;

[0065] (b) Mixing the nano-modified composite masterbatch with HDPE, and blow molding it with an extrusion blown film system to obtain an antibacterial and photodegradable composite film; wherein, the blow molding temperature is 180°C; the die temperature is 180°C.

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Abstract

The embodiment of the invention discloses an antibacterial photo-degradation composite film as well as a preparation method thereof and application thereof. The composite film is prepared from the following raw materials: modified nano TiO2, potassium sorbate, calcium propionate, Span 80, LLDPE (linear low density polyethylene) and HDPE (high-density polyethylene). The raw materials are speciallyselected, so that the prepared composite film has excellent mechanical property, antibacterial property and photo-degradation property.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of composite membranes, in particular to an antibacterial photodegradable composite membrane and its preparation method and application. Background technique [0002] Polymer film is a thin film made of organic polymer. With the development of the petroleum industry and technology, the application field of polymer film has been continuously expanded, from the initial packaging film to intelligent polymer film, polymer functional film and so on. [0003] At present, for the preparation of antibacterial polymer films, most of them are adding antibacterial agents into the matrix, using T-shaped dies to extrude cast composite films, and extrusion blow molding processes; most of the matrix resins use a single LDPE or LLDPE; In addition, the antibacterial agent adopts a single or compound antibacterial agent, which includes organic antibacterial agents, inorganic antibacterial agents or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08K9/04C08K9/00C08K3/22C08K5/098C08J3/22C08J5/18
Inventor 李凤红王猛王德喜
Owner LIAOYANG BOSHI FLUID EQUIP
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