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Composite carbon fiber reinforced phenodiazine biphenyl polyether ketone or phenodiazine biphenyl polyether sulfone material

A technology of naphthalene biphenyl polyether ketone and naphthalene polyether sulfone, which is applied in the field of thermoplastic resin matrix composite materials, can solve the difficult requirements of rigidity, heat resistance and environmental resistance of aerospace structural materials, solvent resistance Poor performance, difficult to bear structural materials, etc.

Inactive Publication Date: 2006-05-24
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main reason for this is that due to the low glass transition temperature, small modulus and poor solvent resistance of thermoplastic resin-based composite materials, it is difficult to meet the stringent requirements of aeronautical structures on material stiffness, heat resistance and environmental resistance.
For example, the glass transition temperature of PEEK thermoplastic resin is only 143°C and the melting point is 334°C. Therefore, it is difficult to use the CF / PEEK composite material as a load-bearing structural material in a high-temperature environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0006] Embodiment 1: The composite material of this embodiment is composed of the following components according to the volume percentage: 50-70% of carbon fiber, and 30-50% of polynaphthalene polyether ketone or polyether sulfone. Polynaphthalene polyether ketone (PPEK) and polyphthalene polyether sulfone (PPES) that the present invention adopts, its solubility in solvent is relatively low, and the viscosity in molten state is very high again, makes its composite Forming of the material becomes more difficult. Therefore, what kind of solvent to choose, so that it can effectively dissolve the resin matrix to facilitate molding processing, and can save cost well, has become a key issue of the present invention. The molding and preparation methods of CF / PPEK and CF / PPES composite materials are described in detail below:

[0007] a. Resin solubility research (solvent selection):

[0008] PPEK and PPES, due to the introduction of fully rigid, distorted non-coplanar naphthalene s...

specific Embodiment approach 2

[0024] Embodiment 2: The composite material of this embodiment is composed of the following components according to the volume percentage: 55-60% of carbon fiber, 40-45% of poly(naphthalene polyether ketone) or poly(ether sulfone) of poly(naphthalene).

specific Embodiment approach 3

[0025] Embodiment 3: The composite material of this embodiment is composed of the following components according to volume percentage: 61-68% of carbon fiber, and 32-39% of polynaphthalene polyether ketone or polyether sulfone.

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PUM

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Abstract

The invention relates to a carbon fiber reinforced polynaphthalene polyether ketone or polynaphthalene polyether sulfone composite material, which relates to a carbon fiber reinforced polynaphthalene polyether ketone composite material and a carbon fiber reinforced polynaphthalene polyether sulfone composite material. The invention is composed of the following components according to volume percentage: 50-70% of carbon fiber, and 30-50% of polynaphthalene polyether ketone or polyether sulfone. Since the glass transition temperatures of PPEK and PPES are 263°C and 305°C, respectively, the tensile and flexural strengths and moduli of CF / PPEK and CF / PPES composites at 250°C all reach more than 60%, indicating that the two composites The materials all have excellent high-temperature mechanical properties and can be used as structural materials under high-temperature conditions.

Description

Technical field: [0001] The invention relates to a thermoplastic resin matrix composite material, in particular to a carbon fiber-reinforced poly(ether ketone) composite material and a carbon fiber-reinforced poly(ether sulfone) composite material. Background technique: [0002] Since the application of glass fiber reinforced polystyrene composites in the 1950s, the application of thermoplastic resin matrix composites has made great progress. In some industries, the application of thermoplastic composite materials has surpassed that of thermosetting composite materials, but in the aviation industry, the main applications are still thermosetting resin-based composite materials such as epoxy resin and bismaleimide resin. The main reason for this is that due to the low glass transition temperature, low modulus and poor solvent resistance of thermoplastic resin-based composites, it is difficult to meet the stringent requirements of aeronautical structures on material stiffness, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L71/00C08L81/06C08K7/06C08J5/04
Inventor 刘文博王荣国谢怀勤贾近矫维成张扬
Owner HARBIN INST OF TECH