Plastic additives, also known as plastic additives, is a polymer (synthetic resin) molding process to improve its processing performance or to improve the performance of the resin itself and the lack of some compounds must be added. For example, in order to reduce the molding temperature of polyvinyl chloride resin, the plasticizer to make the product soft and add; for example, in order to prepare lightweight, vibration-resistant, heat-insulated and sound-insulating foams to add foaming agent; some plastic heat Decomposition temperature and molding temperature is very close, without adding thermal stabilizer can not be formed. Therefore, plastic additives occupy a particularly important position in the plastic molding. A wide range of auxiliaries for plastic molded products, including plasticizers, heat stabilizers, antioxidants, light stabilizers, flame retardants, foaming agents, antistatic agents, antifungal agents, colorants and additives Whiteners (see Pigments), Fillers, Coupling Agents, Lubricants, Mold Release Agents, and the like. Coloring agents, whitening agents and fillers which are not plastic-specific chemicals, but the pan with the use of materials.
(1) should be added with the synthetic resin has good compatibility, long-term stability, uniform dispersion in the resin. (2) Synergy. To make full use of each other to promote the function of plastic additives.
(3) Durability is good. No dialysis, no hair, no migration or extraction by water and liquid substances. (4) the requirements for the use of products. (5) The adaptability to the processing conditions is better. (6) good dispersion, can be easily dispersed in the process of forming uniform. These six points to meet most of the products of additives requirements. Of course, many PVC products have special requirements for PVC stabilizers. These requirements are solved in the development of PVC stabilizers.