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Garbage can and injection molding process thereof

A technology of injection molding and trash can, applied in trash cans, garbage collection, other household appliances, etc., can solve problems such as affecting the use time of trash cans, shortening the service life of polypropylene materials, and deterioration of mechanical properties of polypropylene materials due to aging and degradation. , to achieve the effect of enhancing physical and mechanical properties, reducing irradiation, and inhibiting the speed of flame propagation

Inactive Publication Date: 2020-11-17
浙江环群塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the trash can is used outdoors for a long time, because polypropylene is very sensitive to ultraviolet rays, it is easily affected by light, heat and oxygen outdoors, which will cause aging degradation of polypropylene materials and deterioration of mechanical properties, shortening the service life of polypropylene materials , which affects the use time of the trash can

Method used

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  • Garbage can and injection molding process thereof
  • Garbage can and injection molding process thereof
  • Garbage can and injection molding process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A trash can, in terms of parts by mass, the formula of the plastic bucket includes: 50-60 parts of polypropylene, 15 parts of modified montmorillonite, 2 parts of ultraviolet absorber, 3 parts of filler, 1 part of lubricant and flame retardant 0.5 part of agent; the preparation method of described modified montmorillonite is: 1) join cyanuric chloride in acetone, under ice-water bath condition, stir until cyanuric chloride dissolves completely; 2) add p-aminobenzenesulfonic acid Sodium was dissolved in deionized water to make a solution, and added dropwise to the solution in step 1), and the pH of the solution was controlled at 5 during the dropping process. After the dropping, continued to stir for 2 hours; 3) Raise the temperature of the system to 45°C , then add tetramethylpiperidinamine into the above reaction system, adjust the pH of the reaction system at 6.5, continue to stir for 5h, then cool to room temperature, centrifuge the obtained product and wash it with e...

Embodiment 2

[0055]A garbage can, in parts by mass, said plastic bucket formula comprising: 60 parts of polypropylene, 20 parts of modified montmorillonite, 5 parts of ultraviolet absorber, 5 parts of filler, 3 parts of lubricant and 3 parts of flame retardant Part; the preparation method of described modified montmorillonite is: 1) cyanuric chloride is joined in acetone, under the condition of ice-water bath, stir until cyanuric chloride dissolves completely; 2) sodium p-aminobenzenesulfonate is dissolved Make a solution in deionized water, and add it dropwise to the solution in step 1), and control the pH of the solution at 6 during the dropping process, and continue stirring for 2 to 4 hours after the dropping; 3) Raise the temperature of the system to 60°C , then add tetramethylpiperidinamine into the above reaction system, adjust the pH of the reaction system at 67.5, continue to stir for 5-6 hours, then cool to room temperature, centrifuge the obtained product and wash it with ethanol...

Embodiment 3

[0057] A trash can, in parts by mass, the formula of the plastic bucket includes: 55 parts of polypropylene, 18 parts of modified montmorillonite, 4 parts of ultraviolet absorber, 4 parts of filler, 2 parts of lubricant and flame retardant 02 Part; the preparation method of described modified montmorillonite is: 1) cyanuric chloride is joined in acetone, under the condition of ice-water bath, stir until cyanuric chloride dissolves completely; 2) sodium p-aminobenzenesulfonate is dissolved Make a solution in deionized water, and add dropwise to the solution in step 1), the pH of the solution is controlled at 5 during the dropwise addition, and after the dropwise addition, continue to stir for 3 hours; 3) Raise the temperature of the system to 50°C, and then Add tetramethylpiperidinamine to the above reaction system, adjust the pH of the reaction system at 7, continue to stir for 5.5 h, then cool to room temperature, centrifuge the obtained product and wash it with ethanol, and d...

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Abstract

The invention discloses a garbage can which is prepared from the following components in parts by mass: 50-60 parts of polypropylene, 15-20 parts of modified montmorillonite, 2-5 parts of an ultraviolet light absorber, 3-5 parts of filler, 1-3 parts of a lubricating agent and 0.5-3 parts of a flame retardant. The injection molding process for the garbage can comprises the following steps: puttingpolypropylene and polyethylene raw materials into a pelletizer, preparing granular raw materials, discharging the raw materials produced by the pelletizer onto an unloading device, and packaging the granular raw materials; then putting the prepared granular raw materials into a hopper of an injection molding machine, feeding the granular raw materials into a charging barrel for heating, melting plastics to reach a flowing state and have good plasticity, then injecting the molten plastics into a mold cavity with lower temperature through a nozzle at the front end of the charging barrel under the pushing of a plunger, and cooling and shaping the molten plastics, and opening the mold to obtain the garbage can.

Description

technical field [0001] The invention belongs to the technical field of garbage can preparation, and in particular relates to a garbage can and an injection molding process thereof. Background technique [0002] In all public places in the city, such as shopping malls, hotels, restaurants, office buildings, and offices, trash cans will be placed to facilitate people to discard rubbish such as paper scraps. However, with the development of the economy and the improvement of life, people's requirements for trash cans are getting higher and higher, so there are many kinds of trash cans on the market, each of which has different design concepts, and strives to meet the requirements of different users. . [0003] When the trash can is used outdoors for a long time, because polypropylene is very sensitive to ultraviolet rays, it is easily affected by light, heat and oxygen outdoors, causing aging degradation of polypropylene materials and deterioration of mechanical properties, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K13/06C08K3/34B65F1/00B29D22/00B29B9/16B29B13/04
CPCC08K13/06C08K3/346B65F1/00B29D22/003B29B9/16B29B13/045B65F2250/114
Inventor 卢奕名陈林德伍星星
Owner 浙江环群塑业有限公司
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