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Antibacterial HDPE plastic

A technology of plastics and antibacterial agents, which is applied in the field of antibacterial HDPE plastics and its preparation, can solve problems such as environmental pollution, unstable quality, and low antibacterial activity, and achieve broad application prospects, simple preparation methods, and improved antibacterial performance.

Inactive Publication Date: 2020-11-10
瑞普环保新材料(广州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no special material for antibacterial plastics on the market. The home appliance industry always adds antibacterial agents to the raw materials to prepare antibacterial plastics. The antibacterial effect is formed through the slow release of antibacterial agents. With the release of antibacterial agents, the antibacterial activity becomes more The smaller the size, the easier the antibacterial agent will fail to achieve the purpose of antibacterial, and the release of antibacterial will cause environmental pollution
The cost of the product made in this way is high and the quality is unstable. Although it has antibacterial function, the antibacterial range is small, the duration is short, and there is no anti-mildew effect.

Method used

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  • Antibacterial HDPE plastic
  • Antibacterial HDPE plastic

Examples

Experimental program
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Effect test

preparation example 1

[0037] Antibacterial agent enhanced HDPE is prepared by the following methods:

[0038] Dissolve 10g of PVC in 250mL of DMF solvent, raise the temperature to 100°C and drop into 50mL of DMF solution containing 1g of triisopropanolamine, reflux reaction in nitrogen atmosphere for 2h, after the reaction is over, add 100g of HDPE and stir to dissolve, stir After reacting for 0.5h, the mixed solution was poured into 10 times the volume of distilled water to precipitate the product. After suction filtration and drying, the product was sent to the twin-screw extrusion granulation through the feeding funnel, and then extruded by parallel twin-screws to form The particle temperature is 180°C, the screw speed is 400r / min, and finally water-cooled and shaped to obtain antibacterial agent-enhanced HDPE.

preparation example 2

[0040] Antibacterial agent enhanced HDPE is prepared by the following methods:

[0041] Dissolve 10g of PVC in 250mL of DMF solvent, raise the temperature to 150°C, drop into 50mL of DMF solution containing 5g of tributylphosphine, and reflux for 5 hours in a nitrogen atmosphere. After the reaction, add 100g of HDPE and stir to dissolve. After 1h, the mixed solution was poured into 10 times the volume of distilled water to precipitate the product. After suction filtration and drying, the product was sent into the twin-screw extrusion granulation through the feeding funnel, and then extruded by parallel twin-screw. The temperature is 200°C, the screw speed is 500r / min, and finally water-cooled and shaped to obtain antibacterial agent-enhanced HDPE.

preparation example 3

[0043] Antibacterial agent enhanced HDPE is prepared by the following methods:

[0044] Dissolve 10g of PVC in 250mL of DMF solvent, raise the temperature to 125°C and drop into 50mL of DMF solution containing 3g of tri-n-butylamine, reflux reaction in nitrogen atmosphere for 3.5h, after the reaction, add 100g of HDPE and stir to dissolve, stir After reacting for 0.75h, the mixed solution was poured into 10 times the volume of distilled water to precipitate the product. After suction filtration and drying, the product was sent into the twin-screw extrusion granulation through the feeding funnel, and then extruded by parallel twin-screws to form The particle temperature is 190°C, the screw speed is 450r / min, and finally water-cooled and shaped to obtain antibacterial agent-enhanced HDPE.

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Abstract

The antibacterial HDPE plastic is prepared from the following raw materials: an antibacterial agent reinforced HDPE, graphene, bamboo charcoal fibers, a toughening agent, a flame-retardant plasticizer, an antioxidant, methyl silicone oil, polyethylene glycol and a coupling agent. The preparation method is simple, and the prepared antibacterial HDPE plastic has good high temperature resistance, mechanical properties, safety, surface properties and antibacterial properties, and has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of plastics, in particular to an antibacterial HDPE plastic and a preparation method thereof. Background technique [0002] Antibacterial plastic refers to the addition of antibacterial agents to plastics to make the plastic itself antibacterial, which can kill or inhibit the bacteria stained on the plastic within a certain period of time. Compared with conventional chemical and physical methods, the use of antibacterial plastics for sterilization Long-lasting, economical and convenient. Antibacterial agents can be divided into three types: inorganic, organic, and natural biological antibacterial agents. Because different antibacterial agents have different antibacterial mechanisms and effectiveness against the same pathogenic bacteria, and the same antibacterial agents have different antibacterial mechanisms and inhibition ranges for different pathogens, therefore, it is necessary to develop long-acting an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L81/04C08L83/04C08L67/00C08L27/22C08L1/04C08K3/04C08K5/544C08K5/06
CPCC08L23/06C08L2201/02C08L2201/08C08L2205/035C08L2205/16C08L2207/062C08L81/04C08L83/04C08L67/00C08L27/22C08L1/04C08K3/042C08K5/544C08K5/06
Inventor 不公告发明人
Owner 瑞普环保新材料(广州)有限公司
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