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With the expansion of chemical production scale and the increasing scarcity of resources, the utilization of renewable resources has gradually become a focus of industry attention. As an important raw material for chemical production, the manufacturing method of regenerated EPS is of great significance for improving resource utilization, reducing production costs, and protecting the environment. This article will provide a detailed introduction to the manufacturing methods of recycled EPS, in order to provide reference for sustainable development in the field of chemical production

2、 Overview of Regenerated EPS 

EPS (Expandable Polystyrene) is a widely used plastic material. Regenerated EPS refers to the process of processing waste EPS to restore its value for use. Regenerated EPS can not only effectively utilize waste resources, but also reduce production costs and improve economic benefits

3、 The manufacturing method of regenerated EPS 

1 Collection and Classification of Waste EPS 

Firstly, it is necessary to collect and classify waste EPS. According to the source and quality of waste EPS, it can be classified into different categories for subsequent processing

2. Cleaning and drying 

Clean the sorted waste EPS to remove surface oil and impurities. After cleaning, perform drying treatment for subsequent processing

3. Crushing and screening 

Crush the dried waste EPS into particles of a certain size. Then, screening treatment is carried out to control the particle size within a certain range for subsequent processing

4. Extrusion granulation 

The screened EPS particles are added to the extruder and undergo heating, melting, extrusion and other processes to form regenerated EPS particles. During the extrusion process, some additives can be added as needed to improve the performance of regenerated EPS

5. Drying and Packaging 

Dry the regenerated EPS particles after extrusion to remove moisture. Then, package for storage and transportation

4、 Notes 

1 In the manufacturing process, temperature, pressure and other parameters of each process should be strictly controlled to ensure product quality

2. Waste EPS from different sources and qualities should be classified to ensure stable quality of recycled EPS

During the extrusion granulation process, appropriate additives should be added as needed to improve the performance of regenerated EPS. At the same time, attention should be paid to the dosage and type of additives to avoid harm to the environment and human health

4. During the drying and packaging process, attention should be paid to measures such as moisture-proof and sun protection to ensure the quality and service life of recycled EPS

5、 Conclusion: The manufacturing method of regenerated EPS is of great significance for improving resource utilization, reducing production costs, and protecting the environment. Through reasonable process design and operational control, regenerated EPS with stable quality and excellent performance can be produced, providing support for sustainable development in the field of chemical production.