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Anti-bacterial plastic applicable to mobile phone shells and preparation method of anti-bacterial plastic

A technology for antibacterial plastics and mobile phone cases, applied in the field of antibacterial plastics, can solve problems such as destroying soil structure and polluting the environment, and achieve the effects of good fluidity and good softness

Inactive Publication Date: 2015-11-11
ZHANGJIAGANG DANENG PLASTIC PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of traditional non-degradable plastics polluting the environment and destroying the soil structure, the purpose of the present invention is to provide a biodegradable plastic with good application performance

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0017] A method for preparing an antibacterial plastic suitable for a mobile phone case is characterized in that it comprises the following steps:

[0018] (1) Add biodegradants, lignin, ethylene and acrylic acid copolymers, polyvinyl alcohol, antibacterial agents, additives and water into a high-speed mixer and stir for 15 to 30 minutes to form a uniform mixture;

[0019] (2) Add thermoplastic starch, lignin, ethylene and acrylic acid copolymers, polyvinyl alcohol, antibacterial agents, additives and water into a high-speed mixer and stir for 15 to 30 minutes to form a uniform miscible body;

[0020] (3) Add the mixed solution obtained in steps (1) and (2) into a twin-screw extruder through a metering pump and a loss-in-weight metering feeder for mixing and extrusion.

Embodiment 1

[0021] Embodiment 1: a kind of antibacterial plastics that is suitable for mobile phone case, the weight parts of described each raw material is: thermoplastic starch 45 parts, biodegradation agent 13 parts, lignin 8 parts, ethylene and acrylic acid copolymer 10 parts, polyvinyl alcohol 8 parts, 8 parts of antibacterial agent and 8 parts of auxiliary agent, described thermoplastic starch is potato starch, described antibacterial agent is chitin and castor oil, and the mass ratio of described chitin and castor oil is 2:1, and described biological The degradation agent is polyhydroxyalkanoate,

[0022] A method for preparing an antibacterial plastic suitable for a mobile phone case is characterized in that it comprises the following steps:

[0023] (1) Add biodegradants, lignin, ethylene and acrylic acid copolymers, polyvinyl alcohol, antibacterial agents, additives and water into a high-speed mixer and stir for 200 minutes to form a uniform mixture;

[0024] (2) Add thermoplas...

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PUM

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Abstract

The invention discloses anti-bacterial plastic applicable to mobile phone shells. The anti-bacterial plastic is characterized by comprising the following raw materials in parts by weight: 30-70 parts of thermoplastic starch, 10-40 parts of a biodegradation agent, 5-15 parts of lignose, 5-22 parts of ethylene and acrylic acid copolymers, 3-15 parts of polyvinyl alcohol, 3-15 parts of one or more anti-bacterial agents and 5-15 parts of an additive. According to a preparation method, the anti-bacterial plastic is a plastic product produced by utilizing the thermoplastic starch instead of a petroleum material, and the produced plastic product has a self-degradation function, so that environmental pollution is prevented; moreover, the anti-bacterial plastic is starch plastic prepared by mixing such raw materials as the thermoplastic starch as well as the ethylene and acrylic acid copolymers, and the liquidity of the starch plastic is very high, so that the anti-bacterial plastic is very high in flexibility, oiling agent resistance, and heat sealability; through addition of the various anti-bacterial agents, the anti-bacterial plastic has bacteriostatic and bactericidal properties.

Description

technical field [0001] The invention relates to a biodegradable plastic, in particular to an antibacterial plastic suitable for a mobile phone case. Background technique [0002] At present, plastics are widely developed in many fields due to their advantages of light weight, high strength, stable chemical properties and low cost. However, because there is no proper treatment method for used plastics, most of them are generally disposed of as solid waste, resulting in Pollutants such as acid rain form in the air, which pollute the natural environment more and more seriously and cause serious harm to our lives. Contents of the invention [0003] In order to solve the problems of traditional non-degradable plastics polluting the environment and destroying the soil structure, the purpose of the present invention is to provide a biodegradable plastic with good biodegradability and good application performance. [0004] The technical solution adopted by the present invention t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L3/04C08L67/04C08L97/00C08L23/08C08L29/04C08L5/08C08L91/00
Inventor 袁庆
Owner ZHANGJIAGANG DANENG PLASTIC PROD