Nano-antibacterial plastic bottle and preparation method thereof

A technology of antibacterial plastics and nano antibacterial agents, applied in the field of plastic processing and molding, can solve the problems of short service life, high temperature resistance, harmful to human body, etc.

Inactive Publication Date: 2017-11-24
TAISHAN XINHUA OFFICIAL PHYSIC PACKAGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Nano antibacterial plastic bottles researched and developed at present all have some deficiencies in high temperature resistance, environmental protection, anti-stability performance, disclose a kind of polyethylene plastic bottle with antibacterial function and preparation method thereof as Chinese patent CN104086851A, described antibacterial The masterbatch is a high-density polyethylene resin masterbatch containing inorganic nano-silver antibacterial agent, but the nano-silver contained therein is harmful to the human body and cannot be used for medicine and food packaging. Chinese patent CN104610657A discloses an antibacterial plastic bottle for food. The above antibacterial agent is polylysine or essential oil, but this type of organic antibacterial agent has a short service life and is not resistant to high temperature, so it is easy to cause secondary pollution to medicines and food

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method for a nano antibacterial plastic bottle, comprising the following preparation steps:

[0026] (1) Weigh raw materials according to mass percentage: 50% polyolefin, 2% nano-zinc oxide antibacterial agent, 1% antioxidant, 2% lubricant, 10% auxiliary agent, add to the injection molding machine to mix, melt and plasticize into melt mixture;

[0027] (2) injecting the melt mixture in step (1) into a mold to form a hollow preform;

[0028] (3) Feeding high-pressure gas into the hollow preform in step (2) to expand and set it in the mold to obtain the final nano antibacterial plastic bottle.

[0029] The prepared nano antibacterial plastic bottle is applied in medicine and food packaging.

Embodiment 2

[0031] A preparation method for a nano antibacterial plastic bottle, comprising the following preparation steps:

[0032] (1) Weigh raw materials by mass percentage: polyolefin 70%, nano antibacterial agent 10%, tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester antioxidant 8 %, organosilicon compound lubricant 10%, additives 40%, the polyolefin is a mixture of polystyrene, polyethylene and polycarbonate, the nano-antibacterial agent is a mixture of nano-zinc oxide and nano-titanium dioxide, and the raw materials are added to injection molding Mixing, melting and plasticizing into a melt mixture in the machine;

[0033] (2) injecting the melt mixture in step (1) into a mold to form a hollow preform;

[0034] (3) Feeding high-pressure gas into the hollow preform in step (2) to expand and set it in the mold to obtain the final nano antibacterial plastic bottle.

[0035] The prepared nano antibacterial plastic bottle is applied in medicine and...

Embodiment 3

[0037] A preparation method for a nano antibacterial plastic bottle, comprising the following preparation steps:

[0038] (1) Weigh raw materials by mass percentage: 55% polyolefin, 7% nano-silica antibacterial agent, tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester antibacterial 5% oxygen agent, 3% organosilicon compound lubricant, 22% additives, the polyolefin is a mixture of polystyrene and polycarbonate, the raw materials are added to the injection molding machine for mixing, melting and plasticizing into a melt mixture;

[0039] (2) injecting the melt mixture in step (1) into a mold to form a hollow preform;

[0040] (3) Feeding high-pressure gas into the hollow preform in step (2) to expand and set it in the mold to obtain the final nano antibacterial plastic bottle.

[0041] The prepared nano antibacterial plastic bottle is applied in medicine and food packaging.

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PUM

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Abstract

The invention discloses a nano-antibacterial plastic bottle and a preparation method thereof. The nano-antibacterial plastic bottle contains the following components in percentage by weight: 50%-70% of polyolefin, 2%-10% of nano-antibacterial agents, 1%-8% of an antioxidant, 2%-10% of a lubricating agent and 10%-40% of an aid, wherein the nano-antibacterial agents are nano-zinc oxide, nano-titanium dioxide and nano-silicon dioxide, and the antioxidant is tetra[beta-(3,5-di-tertbutyl-4-hydroxyphenyl)propionate]pentaerythritol. The nano-antibacterial plastic bottle is prepared by virtue of an injection blow molding one-step method. According to the preparation method, the pressure resistance, high-temperature resistance/oxidation resistance and durability of an antibacterial bottle are improved.

Description

technical field [0001] The invention belongs to the field of plastic processing and molding, and in particular relates to a nano antibacterial plastic bottle and a preparation method thereof. Background technique [0002] With the improvement of people's living standards, the requirements for plastic packaging are getting higher and higher. The hygiene and safety of pharmaceutical and food packaging, especially medicinal and edible packaging plastic bottles, has attracted more and more consumers' close attention. Relevant national authorities have issued a series of safety measures for plastic bottles used in medicine and food, and have strictly limited the number of bacteria such as Escherichia coli, Staphylococcus aureus, and mold. However, this kind of packaging has gone through many links from production, storage, transportation, use, etc., and it is very difficult to make it comply with the relevant national health regulations. For this reason, urgently need to develop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L23/06C08L69/00C08K13/02C08K3/22C08K3/36
CPCC08K3/22C08K3/36C08K13/02C08K2003/2241C08K2003/2296C08K2201/011C08L23/06C08L25/06C08L69/00C08L2201/08C08L2203/10C08L2205/03
Inventor 黄锦强
Owner TAISHAN XINHUA OFFICIAL PHYSIC PACKAGE
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