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[Chemical Knowledge]：TPR production and manufacturing methods and processes.

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Thermoplastic elastomers (TPE) and thermoplastic rubber (TPR) are important materials in the field of chemical production raw materials. TPR as a kind of TPE, because of its excellent performance, such as weather resistance, aging resistance, oil resistance, chemical resistance, good processing performance, etc., is widely used in automobiles, home appliances, cables, shoes and other fields. This article will introduce the manufacturing method of TPR.

1. Raw Material Preparation
The production of
TPR requires the preparation of the following raw materials: styrene, butadiene, acrylonitrile, methyl methacrylate, etc. These raw materials are petrochemical products and need to meet the relevant quality standards.

2. Ingredients

According to a predetermined formula, various raw materials are added to a high-speed mixer in a certain proportion and fully mixed. The mixing process requires temperature and time control to ensure that the raw materials are fully and evenly mixed together.

3. mixing

put the mixed raw materials into an internal mixer for mixing under high temperature and high pressure. Mixing can fully plasticize the raw materials, promote the uniform dispersion of various additives, and improve the performance of TPR.

4. extrusion granulation

The well-mixed rubber is extruded into strips through an extruder, cooled by a water tank, and then cut into pellets of a certain length. In the process of extrusion granulation, it is necessary to control the extrusion speed, temperature, pressure and other parameters to ensure the quality and output of pellets.

5. post-treatment

extruded pellets need to go through post-treatment processes such as drying and sieving to ensure product quality and stability. Drying can remove the moisture in the pellets and prevent the product from generating bubbles during use; sieving can ensure the uniform particle size of the product and facilitate subsequent processing.

6. quality inspection

after the completion of the above processes, the need for TPR products quality inspection, including physical properties, chemical properties and other aspects of the test. Only products that meet the relevant standards can be judged as qualified and can be sold in the market.

In short, the manufacture of TPR requires multiple processes, including raw material preparation, batching, mixing, extrusion granulation, post-processing and quality inspection. Each process requires strict control of process parameters to ensure product quality and stability. At the same time, it is also necessary to pay attention to environmental protection and safety issues in the production process and comply with relevant laws and regulations.

In the manufacturing process of TPR, it needs to be adjusted and optimized according to the requirements of specific products. Different application areas have different performance requirements for TPR, so the formulation and process need to be adjusted according to actual needs. At the same time, with the continuous development of science and technology, TPR manufacturing technology and equipment are constantly upgrading, enterprises need to maintain attention and timely update equipment and technology, in order to improve production efficiency and product quality.

In short, the manufacture of TPR requires strict control of the process parameters and quality standards of each process to ensure product performance and stability. At the same time, enterprises need to pay attention to market demand and technological development, and constantly carry out technological innovation and product upgrading to meet the changing market demand.

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