Method and device for synergistically preparing ultrahigh-viscosity polymer blend

Abstract

The invention discloses a method and device for synergistically preparing an ultrahigh-viscosity polymer blend. According to the method, a material flows in circularly compressed and expanding modes during periodical change of the size, and is under the size tensile stress effect in the direction consistent with the flowing direction, ultrasonic vibration is superposed in the direction perpendicular to the flowing direction through an ultrasonic device arranged at a through hole of an eccentric stator, and polymer material mixing under the synergistic effect of the vibration shear stress and the size tensile stress is achieved. A rectangular through groove is radially formed in a rotor shaft of the device, a sliding plate is placed in the radial rectangular through groove of the rotor shaft, a volume enclosure space is divided into two periodical change parts by the sliding plate, and the two parts communicate through a passing groove; a vibration transmission rod is connected with anultrasonic generator; and the vibration transmission rod is mounted in the through hole of the eccentric stator through a flange plate and a flange. The processes of mass transfer and heat transfer inthe mixing process are reinforced, and the characteristics that a mixing device is simple in structure, high in mixing efficiency, good in mixing property and capable of being automatically cleaned are achieved.

Description

technical field [0001] The invention relates to the preparation of a polymer blend, in particular to a method and a device for synergistically preparing an ultra-high viscosity polymer blend through normal stress and vibration shear stress. technical background [0002] Ultra-high viscosity polymers have exceptional properties due to their extremely high molecular weight. For example, ultra-high molecular weight polyethylene has the characteristics of high mechanical strength, excellent wear resistance, light weight, environmental protection, and low water absorption. It is widely used in textiles, papermaking, food machinery, transportation, metallurgy, coal and other fields, but it also has heat The deficiencies such as low deformation temperature, poor thermal stability, and poor creep performance limit its further popularization and application. In order to overcome these shortcomings, a common method is to blend ordinary polymers, fillers and various additives with ult...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems of low mixing efficiency and inability to effectively mix ultra-high viscosity polymer systems in current mixing equipment, and provides a method for preparing ultra-high-viscosity polymer co-polymers using the synergistic effect of volume tensile normal stress and ultrasonic vibration shear stress. Mixing method and device to achieve the purpose of improving the mixing effect

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