Thermoplastic elastomer (TPE) and thermoplastic rubber (TPR) are important materials in the field of raw materials for chemical production.TPR, as a kind of TPE, is widely used in the fields of automobiles, home appliances, wires and cables, shoe materials and so on due to its excellent properties, such as weathering resistance, aging resistance, oil resistance, chemical resistance, and good processing performance. This article will introduce the manufacturing method of TPR. I. Preparation of raw materials
The manufacture of TPR requires the preparation of the following raw materials: styrene, butadiene, acrylonitrile, methyl methacrylate, etc. These raw materials are petrochemicals. These raw materials are petrochemical products and need to meet the relevant quality standards.
二、Batching
According to the predetermined formula, all kinds of raw materials are added into the high-speed mixer according to a certain proportion and mixed thoroughly. Temperature and time need to be controlled during the mixing process to ensure that the raw materials are fully and evenly mixed together. Refining
The mixed raw materials will be put into the refining machine for refining under high temperature and high pressure. Dense refining can make the raw materials fully plasticized, and at the same time promote the uniform dispersion of various additives to improve the performance of TPR. Four, extrusion pelletizing
will be refined rubber through the extruder extrusion into strips, and then through the water tank cooling, and then cut into a certain length of the pellets. Extrusion pelletizing process needs to control the extrusion speed, temperature, pressure and other parameters to ensure the quality and yield of the pellets.
V. Post-processing
The extruded pellets need to go through post-processing procedures such as drying and sieving to ensure the quality and stability of the product. Drying can remove the moisture in the granule to prevent the product from producing bubbles and other problems in the process of use; sieving can ensure the uniformity of the product particle size, which is convenient for subsequent processing.
VI. Quality Inspection
After completing the above process, TPR products need to be 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 summary, the manufacture of TPR requires several processes, including raw material preparation, batching, densification, extrusion pelletizing, post-processing and quality inspection. Each process requires strict control of process parameters to ensure product quality and stability. At the same time, attention needs to be paid to environmental protection and safety issues in the production process and compliance with relevant regulations and rules.
In the manufacturing process of TPR, it also needs to be adjusted and optimized according to the requirements of specific products. Different applications have different performance requirements for TPR, so the formula and process need to be adjusted according to the actual needs. At the same time, with the continuous development of science and technology, TPR manufacturing technology and equipment are also constantly updated, enterprises need to maintain attention and timely update equipment and technology to improve production efficiency and product quality.
In short, the manufacturing of TPR needs to strictly control 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.
