Production device and preparation method of glass fiber reinforced polyimide film

Abstract

The invention discloses a production device and a preparation method of a glass fiber reinforced polyimide film. The production device comprises a double-screw extruder, a PAA (polyamic acid) solution storage tank at the front part and a glass fiber storage tank at the rear part, wherein the double-screw extruder is provided with a front side feeding port connected with the PAA solution storage tank and a rear side feeding port connected with the glass fiber or powder storage tank; the double-screw extruder is provided with a front feeding section and a rear feeding section; the front side feeding port is formed in the front feeding section; a front mixing section and a front conveying section are sequentially arranged at the rear part of the front feeding section; the rear side feeding port is formed in the rear feeding section; a rear mixing section and a rear conveying section are sequentially arranged at the rear feeding section; and the front conveying section is located at the front part of the rear feeding section. With the adoption of the double-screw extruder structure, mounting space of a production line is compact, diversity of a resin formula is improved, and product production efficiency and product quality are improved.

Description

technical field [0001] The invention relates to the technical field of production device and process of polyimide composite film, in particular to a production device and preparation method of glass fiber reinforced polyimide film. Background technique [0002] The polyimide film manufactured by traditional equipment and technology has defects such as poor strength and heat resistance, poor dimensional stability, warping and deformation of the film, and high shrinkage due to the unique plastic characteristics of the polymer, which makes the self-supporting strength of the film product It is difficult to meet the requirements of practical application, which limits its application scope to a large extent. [0003] Glass fiber has excellent heat resistance, insulation performance, mechanical strength and corrosion resistance. Using it as an electrical insulation material and reinforcing material to prepare composite materials can enhance the mechanical strength of the composite...

AI Technical Summary

Problems solved by technology

[0002] The polyimide film manufactured by traditional equipment and technology has defects such as poor strength and heat resistance, poor dimensional stability, warping and deformation of the film, and high shrinkage due to the unique plastic characteristics of the polymer, which makes the self-supporting strength of the film product It is difficult to meet the requirements of practical application, which limits its application scope to a large extent

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