Manufacturing Method of Polyethylene Recycled Material
I. Introduction
With the continuous expansion of the scale of chemical production and the increasing tension of resources, the manufacture of polyethylene recycled material has gradually become a research hotspot in the industry. Polyethylene recycled material can not only effectively utilize the waste polyethylene materials and reduce the production cost, but also improve the utilization rate of resources and reduce the pollution of the environment. This paper will discuss the manufacturing method of polyethylene recycled material.
II. Manufacturing Methods of Polyethylene Recycled Material
1. Cleaning and Classification
First of all, the collected waste polyethylene materials need to be cleaned and classified. The purpose of cleaning is to remove the oil and impurities on the surface of the material, and the purpose of classification is to separate different types of polyethylene materials for subsequent processing. Crushing and blending
After cleaning and sorting, the polyethylene material is crushed and blended. Crushing is to break down large pieces of material into smaller pieces for subsequent processing; mixing is to mix different types of polyethylene materials sufficiently to ensure uniform quality of recycled material. Plasticizing and Extruding
After crushing and mixing, the polyethylene material needs to enter the plasticizing extruder for plasticizing and extruding. In the process of plasticizing and extruding, the polyethylene material is plasticized into a molten state through high temperature and high pressure, and then the recycled material is extruded through the extruder head. Cooling and Pelletizing
The recycled polyethylene material extruded from the extruder head needs to be cooled and pelletized. Cooling is to allow the recycled material to cure quickly and maintain its shape and structure; pelletizing is to facilitate subsequent storage and transportation.
III. Problems to be noted in the manufacturing process
1. Control temperature and pressure
During the plasticizing and extrusion process, temperature and pressure need to be controlled to ensure that the polyethylene material can be fully plasticized, and at the same time to avoid damage to the equipment caused by excessively high temperature and pressure.
2. Keep the equipment clean
During the manufacturing process, it is necessary to keep the equipment clean and regularly clean the debris and dirt inside the equipment to ensure the normal operation of the equipment and the quality of the products.
3. Strictly control the quality of raw materials
The quality of raw materials used in the manufacture of PE recycled materials has a crucial impact on the quality of the final product. Therefore, when collecting raw materials, the quality of raw materials needs to be strictly controlled to avoid mixing impurities and unqualified raw materials.
IV.CONCLUSION
In conclusion, the manufacturing method of polyethylene recycled material needs to go through the steps of cleaning and sorting, crushing and mixing, plasticizing and extruding, as well as cooling and pelletizing. During the manufacturing process, attention needs to be paid to such issues as controlling temperature and pressure, keeping equipment clean and strictly controlling the quality of raw materials. Through rational manufacturing methods and strict control measures, high quality polyethylene regrind can be produced, providing a sustainable solution for the chemical production sector.
