Application of high-speed mixer in the mixing of PVC powder

In the production process of PVC products, the mixing process is an important link. Polyvinyl chloride materials for molding include powders, pellets, solutions, dispersions, etc., which are generally mixtures of polymers (resins) and various additives. Powders and granules are often used in production. The difference between them is mainly the degree of mixing, plasticization and subdivision. The purpose of making the mixture of resin and various additives into powder or pellets is to facilitate the operation of loading and unloading, metering and molding. When formulating powder, it is generally just to mix and disperse the components uniformly, while pellets are made of powder through plasticizing or extrusion processes. Visible in the production of powder mixing is the key. There are many types of equipment used for powder mixing, mostly intermittent. Rotary mixing tool mixers are mainly represented by ribbon mixers, kneaders, and high-speed mixers. Their common feature is that the mixing chamber (barrel body) is fixed, and the mixing chamber has a rotatable rotor (spiral belt, stirring Device). The outer side of the mixing chamber is provided with a jacket, which can be fed with heat conduction oil or cooling water for heating or cooling, or electric heating. They can be used for mixing wet or non-wet materials. In terms of mixing efficiency, high-speed mixers> kneaders> ribbon mixers, so high-speed mixers are the most widely used mixers in the plastics industry today.