With the continuous development of the plastics industry , the application of plastics has expanded, and the variety of plastic additives has also increased. It has become a fine chemical industry with many items. The addition of plastic additives not only facilitates processing but also improves product performance. It also reduces costs and saves energy. It also increases productivity and enhances the product value of the product.
For example, the processing temperature and decomposition temperature of polyvinyl chloride are very close. If the heat stabilizer is not used, it cannot be processed, thus losing practical value. For example, polyvinyl chloride is a polar polymer, and the concentration of molecules is high, which is a hard If it is not added with plasticizer, it cannot be made into soft polyvinyl chloride; polystyrene is a brittle plastic. If it is toughened without rubber, it cannot expand the application range; some polymers such as polyvinyl chloride And abs, etc., in the process of processing, without the addition of lubricants, the fluidity is poor, easy to stick mold, making processing difficult, product quality is inferior.
For example, without antioxidants and light stabilizers, polyethylene and polypropylene are easy to age when used outdoors, and the service life is greatly shortened; without flame retardants, reinforcing agents, static inhibitors, plastics cannot be used for aviation. Aerospace, electronics, construction and transportation; no colorants such as dyes or pigments, plastic products lose the competitive value of goods due to a single color.
It can be seen that the plastic auxiliaries not only make the polymer easy to process, but also largely compensate for the lack of the polymer itself, such as improving the performance of the product and prolonging the service life. Therefore, it can be said that without the cooperation of processing aids, there is no development of the plastics industry.
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