Mixing method for hydrolytic sensitive high polymer material and modified assistant and blender mixer

Abstract

The invention discloses a mixing method and a blender mixer, in particular to the mixing method for a hydrolytic sensitive polymer material and a modified assistant and the blender mixer, and belongsto the technical field of modification of high polymer materials. The mixing method for the hydrolytic sensitive polymer material and the modified assistant comprises the following steps: taking the modified assistant and a dried hydrolytic sensitive high polymer material with heat as to-be-mixed materials; adding the to-be-mixed materials into the blender mixer, stirring and mixing the to-be-mixed materials by using a stirring mechanism of the blender mixer; in the process of stirring and mixing, introducing dry gas into the blender mixer to replace the air in the blender mixer and carrying out heat exchange on the materials and a heat-exchanging layer in the blender mixer at the same time. By adopting the mixing method disclosed by the invention, the agglomeration phenomenon of the materials in the blender mixer can be avoided, so that the problem of feeding difficulty of a feeder in the subsequent process is avoided; the condition that high-temperature materials absorb the moisturein the air can be avoided and the performance of a product prepared by modified materials is more excellent.

Description

technical field

[0001] The invention relates to a mixing method and a mixing machine, in particular to a mixing method and a mixing machine of a hydrolysis-sensitive polymer material and a modification auxiliary agent, and belongs to the technical field of polymer material modification. Background technique

[0002] In the field of polymer material modification, hydrolysis-sensitive polymer materials need to be dried at high temperature to remove moisture before they can be modified. In order to prevent the dried hydrolysis-sensitive polymer material from absorbing moisture in the air, the usual method is to add the thermally hydrolysis-sensitive polymer material and modification additives to the mixture as materials to be mixed. Mixing is carried out in the machine, and the discharge port of the mixer is directly connected with the feeder of the twin-screw extruder, so that the mixed material is directly transported to the twin-screw extruder through the feeder of the twin-...

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