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[Chemical Knowledge]：The production process and preparation method of elastomer polyether.

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Elastomer polyether is a kind of polymer material with high elasticity, excellent tensile properties, wear resistance, corrosion resistance, oil resistance and so on. The material is widely used in automobiles, machinery, boots, leather goods and other fields. This article will introduce the production process and preparation method of elastomer polyether.

elastomer polyether production process overview

elastomer polyether production process mainly includes prepolymer preparation, polymerization, assembly, post-processing and testing steps. The prepolymer is usually prepared by reacting an amphiphilic polymer (polyether ester) with a polyhydric alcohol or polyether to form a prepolymer. Polymerization is mainly a condensation reaction between polyether amine and prepolymer to form a polyether elastomer with high elasticity. Assembly is the polyether elastomer mixed with other additives such as pigments, antioxidants, etc., and plastic processing into the desired shape of the product, and finally through post-processing and inspection to complete the product manufacturing.

preparation method

solid phase method to prepare elastomer polyether

solid phase method to prepare elastomer polyether is to mix polyether ester with binary or trihydric alcohol to prepare prepolymer. A small amount of catalyst, such as an organic tin compound, is added to the prepolymer, and then a certain inert gas, such as nitrogen, is filled into the heating reactor. Under the condition of proper temperature, the prepolymer can gradually increase viscosity to become a certain viscosity material. At this time, an excess of polyetheramine and other chemical rubber agents are added to keep the reaction temperature within a certain temperature range. Under stirring, the reaction begins to condense to form a continuous network polymer. After completion of the reaction, the reaction mixture is subjected to operations such as finishing and grinding to obtain the elastomeric polyether in the form of particles.

solution method for the preparation of elastomer polyether

solution method for the preparation of elastomer polyether is mainly the use of polyether ester, polyether amine, organic solvent and other raw materials, under the condition of stirring to add a variety of catalysts, and then form a prepolymer. The prepolymer is then redissolved in an organic solvent, and a certain amount of crosslinking agent and filler are added to adjust the efficacy. After the whole is uniformly mixed, it is extruded through an extruder, cooled and cut into the desired shape. Preparation of Elastomer Polyether by

Thermal Reaction Method

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