Extrusion molding method and extrusion molding equipment for mono-polymer composite product

Abstract

The invention relates to an extrusion molding method and extrusion molding equipment for mono-polymer composite products, belonging to the technical field of polymer composite material molding processing. The extrusion molding method comprises the steps of: delivering molten state matrix forwardly under extrusion pressure and cooling to a quasi-molten state; adding a reinforcing material to the quasi-molten state matrix, mixing, and delivering forwardly; extrusion molding under extrusion pressure to obtain the mono-polymer composite products. The method has a short molding cycle, produces large size products, and can be used in continuous batch production. The extrusion system of the main machine of the extrusion molding equipment mainly consists of a screw, barrels and hoppers. The barrels comprise fixedly connected barrels I-IV. Heating-cooling systems are arranged on the outside walls of the barrels and / or in the walls of the barrels. A matrix charging hopper is arranged on the barrel I which is provided with the screw inside. A reinforcing material charging hopper is arranged on the barrel III. A mixing element is arranged inside the barrel IV. The equipment is simple in structure and easy in operation, and can produce mono-polymer composite products by extrusion molding.

Description

technical field [0001] The invention relates to a single polymer composite product extrusion molding method and extrusion molding equipment, belonging to the technical field of polymer composite molding processing. Background technique [0002] With the rapid development of the material industry, single-material products are far from being able to meet the applications in various fields. The birth of composite materials has greatly made up for the shortcomings of single materials in physical and chemical properties. Composite material is defined as: a solid product composed of two or more independent physical phases, including bonding material (matrix) and granular, fiber or sheet material; The above materials with different properties are macroscopically composed of materials with new properties through physical or chemical methods. The biggest feature of composite materials is that the properties of the composite materials are superior to those of the individual materials...

AI Technical Summary

Problems solved by technology

[0015] In view of the defects of long molding cycle, small product size and inability to continuous batch production in the existing preparation method of single-polymer composite products, one of the purposes of the present invention is to provide a method for extrusion molding of single-polymer composite products , the method has the advantages of short molding cycle, large size of the prepared product, continuous batch production, high production efficiency, simple equipment structure and easy operation, etc.

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