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[Chemical Knowledge]：The production and manufacturing method and process of recycled PVC.

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The manufacturing method
of recycled PVC
1. Introduction

With the development of the chemical production industry, the requirements for environmental protection and sustainability are getting higher and higher. As a sustainable raw material for chemical production, the manufacturing method of recycled PVC has attracted much attention. This article will introduce a manufacturing method of recycled PVC, which aims to improve the utilization of resources, reduce production costs, and contribute to environmental protection.

2. recycled PVC manufacturing methods

1. Waste classification and cleaning

First, the waste PVC products are classified, such as pipes, plates, profiles, etc., and cleaning to remove oil and impurities on the surface.

2. Crushing and mixing

Crush the waste PVC products after classification and cleaning to obtain fragments of a certain particle size. Then, add some additives, such as stabilizers, lubricants, processing aids, etc., as needed, and mix with the chips evenly.

3. plasticizing and extrusion

the mixed material into the plasticizing extruder, under the action of high temperature and high pressure, the material is melted and plasticized again. In the process of extrusion, the quality of recycled PVC can be controlled by adjusting the parameters of the extruder.

4. Cooling and pelletizing

The extruded recycled PVC is cooled in a cooling water tank and then pelletized to obtain recycled PVC particles with a certain length and particle size.

5. Quality testing and packaging

quality testing of recycled PVC particles, including physical properties, chemical properties and other aspects of testing. Qualified recycled PVC pellets are packaged for transport and use.
Precautions for
3.

1. In the manufacturing process, the parameters of each process should be strictly controlled to ensure the stable quality of recycled PVC.

2. The amount of additives should be adjusted according to the type and quality of waste PVC products to ensure the performance of recycled PVC.

3. During the plasticizing extrusion process, attention should be paid to the maintenance and maintenance of the equipment to ensure the normal operation of the equipment.

4. advantages and application
The manufacturing method of
recycled PVC has the following advantages:

1. Improve the utilization rate of resources and reduce production costs. By recycling waste PVC products, the demand for new raw materials can be reduced, while reducing production costs.

2. Environmentally sustainable. The manufacturing process of recycled PVC can reduce the impact of waste on the environment and meet the requirements of environmental protection and sustainable development.

recycled PVC can be widely used in various fields, such as construction, automobile, wire and cable, packaging, etc. Due to its excellent performance and affordable price, recycled PVC has high competitiveness in the market.

5. conclusion

the manufacturing method of recycled PVC is of great significance for improving the utilization rate of resources, reducing production costs and protecting the environment. In the actual production process, the parameters of each process should be strictly controlled to ensure the stable quality of recycled PVC. The promotion and application of recycled PVC can contribute to the sustainable development of the chemical production industry.

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