Polycarbonate preparation system

A polycarbonate and preparation system technology, applied in the direction of cleaning hollow objects, chemical instruments and methods, cleaning methods and appliances, etc., can solve problems such as increasing environmental pressure, carbon deposition in the system, reducing heat transfer effects of equipment and pipelines, etc. Achieve stable production efficiency, reduce pressure, yellowing and optimize light transmittance
CN106985300AActive Publication Date: 2017-07-28NINGBO ZHETIE DAPHOON CHEM
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NINGBO ZHETIE DAPHOON CHEM
Publication Date
2017-07-28

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Abstract

The invention discloses a polycarbonate preparation system which solves the problem that environment stress is increased as cleaning needs a great number of aromatic hydroxyl compounds. According to the technical scheme adopted by the invention, the key point is that the system comprises a polycondensation reaction mechanism, an additive adding mechanism, a mixing filtering mechanism and an extruding pelletizing mechanism; a phenol cleaning mechanism is further connected between the polycondensation reaction mechanism and the extruding pelletizing mechanism; the phenol cleaning mechanism comprises a phenol recycling tank connected between a melt filter and the extruding pelletizing mechanism; a heating device is arranged on the bottom of the phenol recycling tank; the phenol recycling tank is connected between a polycondensation reactor and a static mixer through a cooling pipeline; and a first booster ump is arranged on the cooling pipeline. The polycarbonate preparation system avoids waste of phenol, increases a utilization rate of phenol, and reduces pressure, caused on environment, of waste liquor generated by cleaning equipment.
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Description

technical field

[0001] The invention relates to polymer materials, in particular to a polycarbonate preparation system. Background technique

[0002] Polycarbonate (polycarbonate, PC) is a thermoplastic engineering plastic with excellent performance. It has outstanding impact resistance, creep resistance, good dimensional stability, heat resistance, low water absorption, non-toxicity, and excellent dielectric properties. It is the only product with good transparency among the top five engineering plastics, and it is also the general-purpose engineering plastic with the fastest growth rate in recent years. It can be applied to glass plates, automotive supplies, electrical appliances, optical products, etc., and its market demand is increasing. At present, most manufacturers in the world generally adopt interfacial polycondensation or melt transesterification.

[0003] Unlike general polymers, polycarbonate is sensitive to shear due to its special structure. The shearing act...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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