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Hydrophobic and oleophobic mildew-proof plastic garbage can and preparation method thereof

A hydrophobic and oleophobic, trash can technology, applied in the field of trash cans, can solve the problems of increasing the complexity and energy consumption of the preparation process, contaminating oil and perishable residues, breeding a large number of bacteria and molds, etc., and achieving excellent hydrophobic and oleophobic and The effect of anti-mildew properties

Inactive Publication Date: 2022-01-11
CHINA TIANYING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, garbage classification is steadily advancing in China. Wet garbage generated in daily life is directly put into wet garbage cans. However, the wet garbage cans currently used are not specially designed. The inner wall of the trash can is contaminated with a lot of oil and perishable residues. When the wet trash can is reused, it needs to consume a lot of water to clean it, which increases labor costs; if it is not cleaned, it will breed a lot of bacteria and mold, which will affect people's health.
[0003] The above problems can be improved by adding functional layers or modifying the plastic used in the barrel body. For example, patent CN 111071659 A discloses a lightweight trash can that is hydrophobic, oleophobic, and antibacterial. The performance is provided by the hydrophobic, oleophobic and antibacterial layer, which is bonded to the barrel body through an adhesive. The preparation process of the entire trash can is too complicated and lacks integrity
[0004] Patent CN 106566157 A discloses a method for preparing a transparent superamphiphobic plastic masterbatch. The fluorine-containing compound of its hydrophobic and oleophobic main component A needs to be dissolved in alcohol, and mixed with other components at high speed and heated and dried to increase The complexity and energy consumption of the preparation process

Method used

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  • Hydrophobic and oleophobic mildew-proof plastic garbage can and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The invention discloses a method for preparing a hydrophobic, oleophobic and mildew-proof plastic trash can, which specifically includes the following steps:

[0034] 1) Weigh the following raw materials by weight:

[0035] Recycled Plastic: 90 parts

[0036] Hydrophobic and oleophobic additives: 0.5 parts

[0037] Anti-mildew additive: 5 parts

[0038] Antioxidants: 1 part

[0039] UV absorber: 0.5 parts

[0040] Other additives: 1.7 parts

[0041] Filler: 0.8 parts

[0042] Masterbatch: 0.5 parts.

[0043] Among them, the recycled plastic is recycled high-density polyethylene prepared from waste plastic bottle caps, the hydrophobic and oleophobic additive is polyvinylidene fluoride powder, and the anti-mold additive is 5-chloro-2-methyl-4-isothiazoline-3 -ketone (CMIT), antioxidants using tris(2,4-di-tert-butylphenyl)phosphite and tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol The ester and the ultraviolet absorber adopt 2-hydroxyl-4-...

Embodiment 2

[0049] The invention discloses a method for preparing a hydrophobic, oleophobic and mildew-proof plastic trash can, which specifically includes the following steps:

[0050] 1) Weigh the following raw materials by weight:

[0051] Recycled plastic: 55 servings

[0052] Virgin plastic: 35 servings

[0053] Hydrophobic and oleophobic additives: 7 parts

[0054] Anti-mildew additive: 0.5 parts

[0055] Antioxidant: 0.2 parts

[0056] UV absorber: 0.2 parts

[0057] Other additives: 0.4 parts

[0058] Filler: 0.2 parts

[0059] Masterbatch: 1.5 parts.

[0060] Recycled plastics are recycled polypropylene prepared from waste plastic bottles, primary plastics are polypropylene that meets injection molding conditions, heptadecafluorodecyltrimethoxysilane is used as a hydrophobic and oleophobic additive, pentachlorophenol is used as an anti-mold additive, and antioxidants (2,4-di-tert-butylphenyl)phosphite, tris(2,4-di-tert-butylphenyl)phosphite, and 2-(2'-hydroxyl-3'-tert Bu...

Embodiment 3

[0066] The invention discloses a method for preparing a hydrophobic, oleophobic and mildew-proof plastic trash can, which specifically includes the following steps:

[0067] 1) Weigh the following raw materials by weight:

[0068] The preparation of hydrophobic, oleophobic and mildew-proof particles, the raw material comprises the following components by weight:

[0069] Recycled plastic: 20 servings

[0070] Virgin plastic: 70 parts

[0071] Hydrophobic and oleophobic additives: 2.5 parts

[0072] Anti-mildew additive: 2.5 parts

[0073] Antioxidant: 0.5 parts

[0074] UV absorber: 0.2 parts

[0075] Other additives: 0.3 parts

[0076] Filling: 1.5 parts

[0077] Masterbatch: 2.5 parts.

[0078] Recycled high-density polyethylene prepared from waste packaging film is used for recycled plastics, high-density polyethylene that meets injection molding conditions is used for primary plastics, and fluorine-containing processing aids are used as hydrophobic and oleophobic a...

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Abstract

The invention discloses a hydrophobic and oleophobic mildew-proof plastic garbage can and a preparation method thereof. The product comprises the following components in parts by weight: 20-90 parts of regenerated plastic, 0-70 parts of raw plastic, 0.5-15 parts of a hydrophobic and oleophobic auxiliary agent, 0.5-5 parts of a mildew-proof auxiliary agent, 0-1 part of an antioxidant, 0-2 parts of an ultraviolet light absorber, 0-10 parts of other auxiliary agents, 0-20 parts of filler and 0.5-5 parts of color master batch. According to the invention, the low-melting-point hydrophobic and oleophobic auxiliary agent and the mildew-proof auxiliary agent are mainly gathered on the surfaces of the prepared hydrophobic and oleophobic mildew-proof particles by utilizing the great difference between the low-melting-point hydrophobic and oleophobic auxiliary agent and the high-molecular melt in viscosity in the processing process; furthermore, the auxiliaries are further gathered on the surface of the garbage can prepared from the hydrophobic, oleophobic and mildew-proof particles, so that the prepared garbage can has excellent hydrophobic, oleophobic and mildew-proof characteristics by adopting the low-content hydrophobic, oleophobic auxiliaries and mildew-proof auxiliaries.

Description

technical field [0001] The invention relates to the technical field of trash cans, in particular to a hydrophobic, oleophobic, mildew-resistant plastic trash can and a preparation method thereof. Background technique [0002] At present, garbage classification is steadily advancing in China. Wet garbage generated in daily life is directly put into wet garbage cans. However, the wet garbage cans currently used are not specially designed. The inner wall of the trash can is contaminated with a lot of oil and perishable residues. When the wet trash can is reused, it needs to consume a lot of water to clean it, which increases labor costs. If it is not cleaned, a large number of bacteria and molds will breed, which will affect people's health. [0003] The above problems can be improved by adding functional layers or modifying the plastic used in the barrel body. For example, patent CN 111071659 A discloses a lightweight trash can that is hydrophobic, oleophobic, and antibacteria...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/12C08L27/16C08L79/00C08K5/46C08K5/5415C08K5/136C08K5/1545
CPCC08L23/06C08L23/12C08L2207/20C08L2207/062C08L27/16C08K5/46C08L91/06C08K5/5415C08K5/136C08L79/00C08K5/1545
Inventor 曹德标张玲芝程利萍张宇燕刘波程旭
Owner CHINA TIANYING
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