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Natural antibacterial and impact-resistant polypropylene meal box and environment-friendly injection molding process thereof

A technology of impact-resistant polypropylene and natural antibacterial, which can be applied to other household appliances, household components, applications, etc., can solve the problems of poor antibacterial efficiency and non-durable impact resistance of polypropylene lunch boxes, so as to facilitate disassembly and improve antibacterial Impact performance, easy-to-use effect

Inactive Publication Date: 2022-01-11
汕头市华美塑料模具实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a natural antibacterial and impact-resistant polypropylene lunch box and its environmental protection injection molding process, aiming to solve the problems of poor antibacterial efficiency, non-durability and poor impact resistance of current polypropylene lunch boxes

Method used

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  • Natural antibacterial and impact-resistant polypropylene meal box and environment-friendly injection molding process thereof
  • Natural antibacterial and impact-resistant polypropylene meal box and environment-friendly injection molding process thereof
  • Natural antibacterial and impact-resistant polypropylene meal box and environment-friendly injection molding process thereof

Examples

Experimental program
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Embodiment 1

[0050] A natural antibacterial and impact-resistant polypropylene lunch box, comprising the following components by mass: 30 parts of polypropylene resin, 8 parts of porous silicon nitride, 5 parts of antibacterial agent, 2 parts of antioxidant and 2 parts of plasticizer, antibacterial The agent is loaded on the surface and pores of porous silicon nitride;

[0051] Among them, antibacterial agents include mugwort leaf extract, tea extract, white peony extract and natural chitin with a mass ratio of 17:11:8:2; antioxidants include caffeic acid and rosemary with a mass ratio of 1.2:0.7 acid; the plasticizer includes edible oil and maltitol in a mass ratio of 2:1.

[0052] The injection molding process of the natural antibacterial and impact-resistant polypropylene lunch box includes the following steps:

[0053] S1, adding the antibacterial agent into water, heating and stirring, and then ultrasonically dispersing to obtain an antibacterial agent dispersion;

[0054] S2, addin...

Embodiment 2

[0057] The difference with embodiment 1 is:

[0058] The natural antibacterial and impact-resistant polypropylene lunch box of the present embodiment comprises the composition of the following mass parts: 40 parts of polypropylene resin, 10 parts of porous silicon nitride, 7 parts of antibacterial agent, 4 parts of antioxidant and 3 parts of plasticizer, The antibacterial agent is loaded on the surface and pores of the porous silicon nitride.

[0059] The rest are the same as in Embodiment 1, and will not be repeated here.

Embodiment 3

[0061] The difference with embodiment 1 is:

[0062] The natural antibacterial and impact-resistant polypropylene lunch box of the present embodiment comprises the composition of following mass parts: 48 parts of polypropylene resins, 13 parts of porous silicon nitrides, 9 parts of antibacterial agents, 6 parts of antioxidants and 4 parts of plasticizers, The antibacterial agent is loaded on the surface and pores of the porous silicon nitride.

[0063] The rest are the same as in Embodiment 1, and will not be repeated here.

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Abstract

The invention relates to the technical field of meal boxes, in particular to a natural antibacterial and impact-resistant polypropylene meal box and an environment-friendly injection molding process thereof. The meal box is prepared from, by mass, 30-60 parts of polypropylene resin, 8-16 parts of porous silicon nitride, 5-12 parts of an antibacterial agent, 2-8 parts of an antioxidant and 2-5 parts of a plasticizer. The antibacterial agent is loaded on the surface and in pores of the porous silicon nitride. The antibacterial agent comprises an artemisia argyi leaf extract, a tea leaf extract, a radix paeoniae alba extract and natural chitin. The antioxidant comprises at least two of caffeic acid, rosmarinic acid and tocopherol. The plasticizer comprises at least two of edible oil, glycerol, glyceryl triacetate, maltitol and sorbitol. Compared with the prior art, the problem that an existing polypropylene meal box is poor and not durable in antibacterial property and poor in impact resistance is solved.

Description

technical field [0001] The invention relates to the technical field of lunch boxes, in particular to a natural antibacterial and impact-resistant polypropylene lunch box and an environmentally friendly injection molding process thereof. Background technique [0002] A lunch box is a box specially used to hold meals, also known as a bento box, mostly made of aluminum, stainless steel, plastic or glass silicon. Among them, although the glass lunch box is the safest material, it is inconvenient to carry, needs to be carefully protected, and is very heavy. Therefore, lightweight plastic lunch boxes are gradually replacing them. Existing plastic lunch boxes are mainly polypropylene lunch boxes. The polypropylene lunch box is made of propylene, which has good transparency and can be heated in a microwave oven. [0003] However, as an organic substance, polypropylene is very easy to breed bacteria, which brings more troubles in actual use. Whether the material has excellent anti...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L5/08C08K9/12C08K7/26C08K5/00C08K5/1545C08K5/134C08K5/435C08K5/053C08K5/103B29C45/17B29L31/00
CPCC08L23/12B29C45/17B29C45/1753B29L2031/7162C08L2201/08C08L5/08C08K9/12C08K7/26C08K5/0058C08K5/1545C08K5/1345C08K5/435C08K5/053C08K5/103
Inventor 吕石部
Owner 汕头市华美塑料模具实业有限公司
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