Quartz fiber reinforced PEEK resin-based wave-transparent composite material and forming method

By employing a multi-stage heating and pressure molding method for quartz fiber reinforced PEEK resin matrix composites, the difficulties in molding and reinforcing PEEK resin matrix wave-transparent materials have been solved, enabling the preparation of high-quality composite materials with excellent mechanical and wave-transparent properties.

CN121136142APending Publication Date: 2025-12-16HUBEI SANJIANG HANGTIAN JIANGBEI MASCH ENG CO LTD
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Patent Information

Application Number
CN202511359781.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-23
Publication Date
2025-12-16

AI Technical Summary

Technical Problem

In the existing technology, it is difficult to mold and reinforce PEEK resin-based microwave transparent materials. Traditional compression molding methods are difficult to clean, have a high risk of mold damage, and the fiber-resin interface strength is insufficient, resulting in poor mechanical properties.

Method used

A multi-stage heating and progressively increasing compression molding method using quartz fiber reinforced PEEK resin matrix composites, combined with one-time lay-up and controlled molding temperature, ensures that the resin fully impregnates the surface of the fiber cloth, removes internal air bubbles, and improves the interfacial bonding strength.

Benefits of technology

It achieves good interlayer bonding of composite materials, has good mechanical properties and wave transmission properties, high molding quality, simple operation, is suitable for the production of large thickness blanks, and the mold has excellent high temperature resistance.

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Abstract

The invention relates to a quartz fiber reinforced PEEK resin-based wave-transparent composite material and a forming method thereof, and the forming method comprises the following steps: uniformly coating a layer of PEEK resin powder on quartz fiber cloth, repeatedly laying the quartz fiber cloth and the PEEK resin powder in a laminated manner, arranging quartz fibers on the uppermost layer to finish laying, and compacting to obtain a preformed blank; carrying out compression molding on the preformed blank: heating to 280-320 DEG C from room temperature, carrying out first-stage heat preservation, pressurizing after the first-stage heat preservation is finished, and carrying out first pressure maintaining treatment; the temperature is increased to 390-410 DEG C, second-stage heat preservation is carried out, pressurization is carried out after second-stage heat preservation is finished, and second pressure maintaining treatment is carried out; and heating to 420-435 DEG C, carrying out third-stage heat preservation, and after the third-stage heat preservation is finished, pressurizing and exhausting to obtain the composite material. According to the invention, one-time layering is combined with multi-section heating and other operations to realize blank compression molding, and the obtained composite material is good in interlayer combination and has good mechanical properties and wave-transparent properties.
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