Recovery processing technology for waste plastics

A technology for waste plastics and processing technology, applied in the direction of plastic recycling, recycling technology, detergent composition, etc., can solve the problems of poor performance of plastic particles, difficult to remove, etc., to enhance environmental protection performance, increase cleaning effect, and enhance strength. Effect

Inactive Publication Date: 2019-01-11
界首市绿环塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the recycling process of waste plastics, there will be stains, glue, and labels on the plastics, which are difficult to remove, which will have a great impact on the subsequent modification of plastics, and will make the modified plastic particles poor in performance

Method used

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  • Recovery processing technology for waste plastics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A process for recycling waste plastics, characterized in that the process steps are as follows:

[0032] (1) Put the collected waste plastics into the cleaning solution, and heat the cleaning solution to 60 degrees, and then clean it with an ultrasonic processor with a frequency of 20KHZ and a power of 900W, and the cleaning time is 20 minutes;

[0033] (2) Spray and rinse the cleaned waste plastics with clear water during the transmission process;

[0034] (3) Dry the rinsed plastic with cold air, and crush the dried plastic into plastic particles of 0.5 cm square;

[0035] (4) Put the crushed plastic particles into the freezer for freezing treatment, and the freezing time is 20 minutes;

[0036] (5) Bake the frozen plastic particles with 120°C hot air for 10 minutes;

[0037] (6) Put the plastic granules processed in step 5 into a high-speed mixer, add modified additives, and knead, the kneading temperature is 180 degrees, and the kneading time is 20 minutes;

[00...

Embodiment 2

[0050] A process for recycling waste plastics, characterized in that the process steps are as follows:

[0051] (1) Put the collected waste plastics into the cleaning solution, heat the cleaning solution to 70 degrees, and then clean it with an ultrasonic processor with a frequency of 20KHZ and a power of 900W, and the cleaning time is 30 minutes;

[0052] (2) Spray and rinse the cleaned waste plastics with clear water during the transmission process;

[0053] (3) Dry the rinsed plastic with cold air, and crush the dried plastic into plastic particles of 0.8 cm square;

[0054] (4) Put the crushed plastic particles into the freezer for freezing treatment, and the freezing time is 40 minutes;

[0055] (5) Bake the frozen plastic particles with 120°C hot air for 15 minutes;

[0056] (6) Put the plastic granules processed in step 5 into a high-speed mixer, add modified additives, and knead, the kneading temperature is 200 degrees, and the kneading time is 30 minutes;

[0057] ...

Embodiment 3

[0069] A process for recycling waste plastics, characterized in that the process steps are as follows:

[0070] (1) Put the collected waste plastics into the cleaning solution, heat the cleaning solution to 80 degrees, and then clean it with an ultrasonic processor with a frequency of 20KHZ and a power of 900W, and the cleaning time is 40 minutes;

[0071] (2) Spray and rinse the cleaned waste plastics with clear water during the transmission process;

[0072] (3) Dry the rinsed plastic with cold air, and crush the dried plastic into 1cm square plastic particles;

[0073] (4) Put the crushed plastic particles into the freezer for freezing treatment, and the freezing time is 50 minutes;

[0074] (5) Dry the frozen plastic particles with 120°C hot air for 20 minutes;

[0075] (6) Put the plastic granules processed in step 5 into a high-speed mixer, add modified additives, and knead. The kneading temperature is 220 degrees, and the kneading time is 40 minutes;

[0076] (7) Put...

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PUM

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Abstract

The invention utilizes the quality, such as high strength, flexibility, abrasive resistance, oil resistivity, flatness and glossiness of the plastic grains produced by modifying waste plastics to achieve high integration of economic benefit, social benefit and environmental protection benefit. According to the invention, the collected waste plastics are cleaned with a cleaning fluid and a heatingand ultrasonic processor is utilized to clean the waste plastics, so that the cleaning fluid can fully act on the stains, greasy dirt, glues and the like on the waste plastics, and the cleaning effectis better; the crushed waste plastics are put into a freezing chamber for freezing and then are heated with hot air, so that the low temperature resistance of the regenerated materials can be promoted, the mechanical properties can be improved and the waste plastics are more easily molten; the energy is further saved when the modified additives are subsequently added for blending.

Description

Technical field: [0001] The invention relates to the technical field of plastic recycling and processing, in particular to a waste plastic recycling and processing technology. Background technique: [0002] As the consumption of plastic products continues to increase, waste plastics are also increasing. At present, my country's waste plastics are mainly plastic films, plastic yarns and woven products, foam plastics, plastic packaging boxes, mineral water bottles, daily plastic products, plastic bags and agricultural mulching films. These waste plastic products are difficult to decompose naturally, and waste resources, which will have a great impact on the environment. It is understood that in 2011, my country's waste plastic production was about 28 million tons, and in 2012 it was 34.13 million tons. If the storage, transportation and processing of these waste plastics are not properly used and post-processed, the waste plastic raw materials waiting to be processed will de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08L83/07C08L69/00C08K13/06C08K9/02C08K9/04C08K7/04C11D1/22C11D3/20C11D3/22C11D3/37C11D3/60C08J11/06
CPCC08J11/06C08J2300/30C08L101/00C08L2205/03C08L2207/20C11D1/22C11D3/201C11D3/2068C11D3/2086C11D3/222C11D3/225C11D3/3719C08L83/04C08L69/00C08K13/06C08K9/08C08K9/02C08K9/04C08K7/04Y02W30/62
Inventor 于浩淼
Owner 界首市绿环塑业有限公司
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