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Biodegradable antibacterial toothbrush and production process thereof

A technology of biodegradation and production process, applied in the direction of coating, etc., can solve the problems of the mechanical properties of the brush handle, which is easy to breed mold, and achieve the effect of solving the problem of easy breeding of bacteria, low cost, and improving antibacterial performance and durability

Active Publication Date: 2021-04-09
HAWLEY & HAZEL BVI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a biodegradable antibacterial toothbrush in order to solve the technical problems that the handle of the existing degradable toothbrush is easy to breed mold and has low mechanical properties

Method used

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  • Biodegradable antibacterial toothbrush and production process thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0027] A kind of production technology of biodegradable antibacterial toothbrush, comprises the following steps:

[0028] (1) Production of masterbatch: dry the root bark of tree peony naturally and grind it to 10-100 meshes, put PBAT, root bark of tree peony and chitosan in a high-speed mixer according to the weight components in Table 1, and mix them at a speed of 70r / min. Stir at a stirring speed for 20 minutes for mixing and stirring. After stirring, use a twin-screw sender to melt and granulate. The temperature of each section is: die head temperature 210°C, first section 190°C, second section 185°C, third section 185 ℃, 170℃ in the fourth stage, to get masterbatch;

[0029] (2) Production of the brush handle: mix the masterbatch and PLA according to the mass ratio in Table 2, dry it in a dehumidifying drying machine at a drying temperature of 80°C for 4 hours after mixing, and perform injection molding on an injection molding machine after drying. The screw diameter of ...

Embodiment 2

[0031] A kind of production technology of biodegradable antibacterial toothbrush, comprises the following steps:

[0032] (1) Production of masterbatch: dry the root bark of tree peony naturally and grind it to 10-100 meshes, put PBAT, root bark of tree peony and chitosan in a high-speed mixer according to the weight components in Table 1, and mix them at a speed of 70r / min. Stir at a stirring speed for 15 minutes for mixing and stirring. After stirring, use a twin-screw sender to melt and granulate. The temperature of each section is: die head temperature 210°C, first section 200°C, second section 185°C, third section 170°C ℃, 180℃ in the fourth stage, to get masterbatch;

[0033] (2) Production of brush handles: mix the masterbatch and PLA according to the mass ratio in Table 2, dry in a dehumidifying drying machine at a drying temperature of 80°C for 6 hours after mixing, and perform injection molding on an injection molding machine after drying. The diameter of the machin...

Embodiment 3

[0035] A kind of production technology of biodegradable antibacterial toothbrush, comprises the following steps:

[0036] (1) Production of masterbatch: dry the root bark of tree peony naturally and grind it to 10-100 meshes, put PBAT, root bark of tree peony and chitosan in a high-speed mixer according to the weight components in Table 1, and mix them at a speed of 70r / min. Stir at a stirring speed for 10 minutes for mixing and stirring. After stirring, use a twin-screw sender to melt and granulate. The temperature of each section is: die head temperature 190°C, first section 190°C, second section 180°C, third section 185 ℃, 165℃ in the fourth stage, to get masterbatch;

[0037] (2) Production of the brush handle: mix the masterbatch and PLA according to the mass ratio in Table 2, dry in a dehumidifying drying machine at a drying temperature of 80°C for 3 hours after mixing, and perform injection molding on an injection molding machine after drying. The screw diameter of the...

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Abstract

According to the biodegradable antibacterial toothbrush and the production process thereof, the toothbrush handle is prepared from PLA and master batch according to the proportion of 10: (1-3), the master batch is prepared from 75-91 parts of PBAT, 8-20 parts of peony root bark and 1-5 parts of chitosan, PLA does not need to participate in extrusion granulation, the physical performance of PLA can be reserved, and the addition amount of an antibacterial agent and PBAT can be flexibly adjusted, the performance requirements of different products can be met, the master batch is firstly formed, an antibacterial agent can be uniformly dispersed in the PBAT and then mixed, the antibacterial agent and the PBAT are uniformly dispersed in the PLA again to obtain a product with better dispersity, the PBAT is added to obviously improve the toughness of the product, and the natural antibacterial agent is used and comprises plant antibacterial agent peony root bark and animal antibacterial agent chitosan, which is no harm to human body. The biodegradable toothbrush is natural, antibacterial and excellent in mechanical property, and the problems that molds are prone to breeding on the surface of a degradable material, the mechanical property of the toothbrush is reduced, and the service life of the toothbrush is shortened are solved.

Description

technical field [0001] The invention belongs to the technical field of toothbrush daily necessities, and in particular relates to a biodegradable antibacterial toothbrush and a production process thereof. Background technique [0002] Plastic was once hailed as one of the greatest inventions of the 21st century. It has the characteristics of light weight, good mechanical properties, and strong plasticity. It plays an irreplaceable role in various industries. Although the appearance of plastics has brought great changes to our lives. It is convenient, but at the same time it brings serious environmental problems. Since plastics take hundreds of years to degrade in the natural environment, discarded plastics will accumulate and form white pollution, and plastics drifting into the sea will also form marine litter. [0003] Toothbrush is an indispensable daily necessities in people's daily life. It belongs to fast-moving consumer goods. Generally, the service life of toothbrush ...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L67/02C08L5/08C08K5/00B29B9/06B29C48/92B29C45/00
CPCC08L67/04B29B9/06B29C48/92B29C45/00B29C2948/92704C08L2205/03C08L2201/06C08L67/02C08L5/08C08K5/0058Y02W90/10
Inventor 潘楚斌梁健华黄权朗郭秀元黄晓文王楠伍浩泉蒋船银
Owner HAWLEY & HAZEL BVI
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