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Plastic sealing barrel and preparation method thereof

A technology of plastic sealing and raw materials, applied in the field of plastic products, can solve the problems affecting product quality and corporate image, people's physical injury, product quality decline, etc., and achieve the effect of simple and efficient preparation method, good sealing performance, and good product size setting.

Inactive Publication Date: 2019-11-22
鸡泽县天冠塑胶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The plastic barrels on the market have leaks caused by poor sealing, which affects product quality and corporate image damage, and this plastic barrel releases carcinogens under the action of high temperature, especially suitable for food packaging barrels. fall and cause physical harm to people

Method used

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  • Plastic sealing barrel and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A preparation method for a plastic airtight bucket, comprising the following steps:

[0034] A. Place 65kg of polypropylene, 25kg of high-density low-pressure polyethylene, 30kg of low-density high-pressure polyethylene and 5kg of calcium hardate in a high-speed mixer according to the proportioning ratio, and stir for 25 minutes at a temperature of 110°C. get the premix;

[0035] B. Add 10kg of calcium carbonate masterbatch, 2kg of distilled glyceryl monostearate, 5kg of phthalate and 2kg of EBFF dispersant to the premix in step A, and stir at a temperature of 140°C 20 minutes, obtain mixture;

[0036] C, the mixture in step B is placed in the twin-screw extruder for melt blending and extruding, and the temperature in each zone is controlled to be 175° C. to obtain mixture particles.

[0037] D. Put the blend particles in the injection molding machine. The barrel temperature of the injection molding machine is 220°C, the nozzle temperature is 230°C, the mold temperatu...

Embodiment 2

[0039] A kind of preparation method of plastic airtight barrel as above, comprises the following steps:

[0040] A. Place 55kg of polypropylene, 15kg of high-density low-pressure polyethylene, 20kg of low-density high-pressure polyethylene and 2kg of calcium hardate in a high-speed mixer according to the proportioning ratio, and stir for 25 minutes at a temperature of 110°C. get the premix;

[0041] B. Add 5kg of calcium carbonate masterbatch, 1kg of distilled glyceryl monostearate, 2kg of phthalate and 1kg of EBFF dispersant to the premix in step A, and stir at a temperature of 140°C 20 minutes to get the mixture;

[0042] C, the mixture in step B is placed in the twin-screw extruder for melt blending and extruding, and the temperature in each zone is controlled to be 175° C. to obtain mixture particles.

[0043] D. Put the blend particles in the injection molding machine. The barrel temperature of the injection molding machine is 190°C, the nozzle temperature is 230°C, the...

Embodiment 3

[0045] A kind of preparation method of plastic airtight barrel as above, comprises the following steps:

[0046] A. Place 59kg of polypropylene, 20kg of high-density low-pressure polyethylene, 25kg of low-density high-pressure polyethylene and 3kg of calcium hardate in a high-speed mixer according to the proportioning ratio, and stir for 25 minutes at a temperature of 110°C. get the premix;

[0047] B. Add 8kg of calcium carbonate masterbatch, 2kg of distilled glyceryl monostearate, 4kg of phthalate and 2kg of EBFF dispersant to the premix in step A, and stir at a temperature of 140°C 20 minutes to get the mixture;

[0048] C, the mixture in step B is placed in the twin-screw extruder for melt blending and extruding, and the temperature in each zone is controlled to be 175° C. to obtain mixture particles.

[0049] D. Put the blend particles in the injection molding machine. The barrel temperature of the injection molding machine is 220°C, the nozzle temperature is 220°C, the...

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Abstract

The invention belongs to the field of plastic products, and particularly relates to a plastic sealing barrel and a preparation method thereof. The plastic sealing barrel comprises the following raw materials in parts by weight: 55-65 parts of first synthetic resin, 15-25 parts of second synthetic resin, 20-30 parts of third synthetic resin, 5-10 parts of filler, 1-2 parts of an antistatic agent, 2-5 parts of a lubricant, 2-5 parts of a plasticizer and 1-2 parts of a dispersing agent. The first synthetic resin, the second synthetic resin, the third synthetic resin and the filler are added, so that the structure of the plastic sealing barrel is more stable, the sealing performance of the plastic barrel is improved, and the cold shrinkage coefficient of plastic is reduced. The antistatic agent can reduce dust absorption of the plastic due to static electricity, so that the quality of the plastic bucket is better, and the antibacterial property is better. The plastic sealing barrel is better in sealing performance, and the prepared plastic sealing barrel is non-toxic.

Description

technical field [0001] The invention belongs to the field of plastic products, and in particular relates to a plastic sealed bucket and a preparation method thereof. Background technique [0002] With the rapid development of society and the continuous improvement of living standards, the plastic products industry has become an indispensable part of the people both in industry and in daily life. Plastic barrels are mostly used for storage and transportation of various liquids, and have good characteristics for special dangerous goods packaging. They are not fragile, rust-free, light in weight, etc., and have excellent oil resistance and strong corrosion resistance. Thermal insulation, moisture-proof, pressure-resistant, corrosion-resistant dangerous goods packaging. [0003] Plastic barrels are mostly made of polyethylene, polypropylene, polyester and other plastic blow molding, injection molding, blister molding, and rotational molding. They are mostly used to hold liquid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08K13/02C08K3/26C08K5/103C08K5/098C08K5/12
CPCC08K2003/265C08L23/12C08L2201/08C08L2205/025C08L2205/03C08L2207/062C08L2207/066C08L23/06C08K13/02C08K3/26C08K5/103C08K5/098C08K5/12
Inventor 徐志勇
Owner 鸡泽县天冠塑胶制品有限公司
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