Polysulfone engineering plastic production method and equipment

Abstract

The present invention discloses a polysulfone engineering plastic production method, which comprises: 1, carrying out a normal pressure polymerization reaction of chlorophenyl sulfone, bisphenol A, potassium carbonate and a dimethyl acetamide solvent at a certain reaction temperature; 2, adding purified water to the product obtained in the step 1, and crushing to obtain a mother liquor and a solid material; 3, distilling the mother liquor obtained in the step 2 to recover the dimethyl acetamide solvent, and washing the solid material obtained in the step 2 with purified water; and 4, drying the washed solid material in the step 3 to obtain the final product. The present invention further discloses polysulfone engineering plastic production equipment.

Description

technical field [0001] The invention relates to the technical field of preparation and processing of organic polymer compounds, in particular to a method and equipment for producing polysulfone engineering plastics. Background technique [0002] Polysulfone is a thermoplastic resin containing chains in the main chain of the molecule. Polysulfone has excellent mechanical properties, high rigidity, wear resistance and high strength. Due to its good characteristics, polysulfone has been widely used in mechanical industry, electronic appliances, transportation, medical equipment and other technical fields. [0003] The polysulfone production method used in the prior art uses dimethyl sulfoxide as a solvent. The dimethyl sulfoxide solvent is not only unpleasant, but also toxic. In the production and preparation process of polysulfone, it is easy to endanger the health of workers, and the overflow of odor can also cause environmental pollution. [0004] At the same time, the dr...

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Problems solved by technology

Dimethyl sulfoxide solvent is not only bad smell, but also toxic

In the process of polysulfone production and preparation, it is easy to endanger the health of the staff, and it will cause environmental pollution when the smell overflows

[0004] At the same time, the polysulfone production equipment dryer used in the prior art relies on water filtration to dry, resulting in high humidity of the material, prolonging the drying time and increasing the production cost

In addition, the polysulfone production equipment dryer used in the prior art is a rotary dryer. During the vacuuming process, the fine powder is easy to overflow, so a cyclone separator is required.

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