High-temperature resistant, high-toughness bismaleimide resin composite material prepreg, composite material, and manufacturing method

The production of bismaleimide resin prepregs by mixing diallyl compounds and polyimide resin, and impregnating with fibers, addresses the challenge of achieving both high heat resistance and toughness, resulting in a composite material suitable for aerospace applications.

JP2026093317APending Publication Date: 2026-06-08HARBIN FRP INST +1
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
HARBIN FRP INST
Filing Date
2025-07-31
Publication Date
2026-06-08

Smart Images

  • Figure 2026093317000001
    Figure 2026093317000001
  • Figure 2026093317000002
    Figure 2026093317000002
  • Figure 2026093317000003
    Figure 2026093317000003
Patent Text Reader

Abstract

This invention provides a prepreg, composite material, and manufacturing method for bismaleimide resin composite materials that are resistant to high temperatures and have high toughness. [Solution] A method for producing a prepreg for bismaleimide resin composite materials, comprising: Step 1: Production of bismaleimide resin adhesive: weighing, stirring, and grinding a diallyl compound and a polyimide resin, adding them to a reaction vessel, setting the temperature, heating rate, stirring rate, and dispersion rate of the reaction vessel, adding the bismaleimide resin when the reaction vessel reaches the set temperature, readjusting the stirring rate, dispersion rate, and temperature of the reaction vessel, reacting for a certain period of time, and then cooling to obtain a bismaleimide resin adhesive; Step 2: Production of bismaleimide resin prepreg: processing the bismaleimide resin adhesive obtained in Step 1 into a resin adhesive film, impregnating the resin adhesive film with fibers using a hot melt method to obtain a bismaleimide resin prepreg.
Need to check novelty before this filing date? Find Prior Art