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Dual-functional toughening-damping intercalation material and product prepared from same

An intercalation material and dual-function technology, which is applied to the toughening-damping dual-function intercalation material and its preparation, and the product field of laminated carbon fiber reinforced resin-based composite materials, which can solve the problem of not being able to improve the impact toughness of composite materials at the same time and other problems, to achieve high damping, high stiffness, and improve the effect of damping performance

Active Publication Date: 2014-08-06
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, Toshio TANIMOT introduced a method of adding piezoelectric ceramic (PZT) powder between layers of composite materials to improve the damping performance of composite materials, which was later developed into Japanese patent 2003-118038 and the corresponding international patent (Smart CFRP Materials for Application in Low-vibration Structures. The International Conference on CompositeInterface21, 2011, Kyoto, Japan). However, this and other damping methods cannot improve the impact toughness of composite materials while improving the damping performance of composite materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1-1) PZT piezoelectric ceramic powder with a particle size of 200nm or a particle size of 3μm or a PZT nanowire with a diameter of 100nm and a length of 25μm or a tetraacicular PZT powder with an apparent diameter of 25μm, multi-walled carbon nanotubes (MWCNT ) or vapor-grown carbon nanofibers (VGCF), phenolphthalein-modified polyaryletherketone dispersed in tetrahydrofuran or N,N-dimethylformamide, the concentration of each component is: the concentration of PZT is 200mg / mL, MWCNT or VGCF The concentration is 6mg / mL or 17mg / mL, and the concentration of phenolphthalein-modified polyaryletherketone is 3mg / mL or 12mg / mL or 25mg / mL. After ultrasonically stirring evenly, immerse the nylon non-woven fabric or aramid non-woven fabric into the above dispersion liquid, wherein the thickness and surface density of the nylon non-woven fabric are 25μm, 8g / m 2 or 50μm, 20g / m 2 or 80μm, 30g / m 2 , the thickness and surface density of aramid non-woven fabric are 30μm, 12g / m 2 or 6...

Embodiment 2

[0037] (2-1) PMgN piezoelectric ceramic powder with a particle size of 3 μm or a PSnN nanowire with a diameter of 800 nm and a length of 25 μm or a triangular PMgN powder with an apparent diameter of 17 μm was used as a silane coupling agent 3-aminopropyltriethyl After oxysilane treatment, disperse with multi-walled carbon nanotubes (MWCNT) or vapor-phase grown carbon nanofibers (VGCF) into N,N-dimethylformamide pre-melted with PVDF, wherein the concentration of each component is: The concentration of PMgN or PSnN is 220mg / mL or 100mg / mL, the concentration of carbon black or nano graphite flakes is 5mg / mL or 13mg / mL, and the concentration of PVDF is 8mg / mL or 20mg / mL. After ultrasonically stirring evenly, immerse the nylon non-woven fabric or aramid non-woven fabric into the above dispersion liquid, wherein the thickness and surface density of the nylon non-woven fabric are 42μm, 13g / m 2 or 55μm, 16g / m 2 , the thickness and surface density of aramid non-woven fabric are 30μm,...

Embodiment 3

[0042] (3-1) Disperse PVDF nanofibers and single-walled carbon nanotubes (SWCNT) with a particle size of 3 μm or a diameter of 300 nm and a length of 70 μm into a DMF solution that has been hot-dissolved with PVDF and cooled in advance or a DMF solution that has been dissolved with PVA in advance. In aqueous solution (crystalline PVDF is insoluble in cold DMD), the concentration of each component is: the concentration of PVDF particles or nanowires is 50mg / mL or 20mg / mL, and the concentration of carbon black or nanographite flakes is 5mg / mL or 3mg / mL mL, the concentration of PVDF is 8mg / mL or 15mg / mL. After ultrasonic stirring, the polyimide non-woven fabric or polyether ether ketone non-woven fabric is immersed in the above dispersion liquid, wherein the polyimide non-woven fabric thickness and surface density are 55μm, 31g / m 2 or 40μm, 9g / m 2 , PEEK non-woven fabric thickness and surface density are 40μm, 11g / m 2 or 57μm, 21g / m 2 . The non-woven fabric is taken out from ...

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Abstract

The invention relates to a dual-functional toughening-damping intercalation material applied to a carbon fiber strengthening lamination resin-based composite and a preparation method of the dual-functional toughening-damping intercalation material, as well as the integrated toughening-damping carbon fiber strengthening lamination resin-based composite prepared from the intercalation material, wherein the intercalation material having the dual-functions of toughening and damping is formed by compounding carrier materials such as non-woven fabrics with low surface density, and load carrying materials such as piezoelectric ceramic powder, piezoelectric polymer powder and other conductive auxiliary components; the intercalation material is placed between the laminations of the conventional carbon fiber lamination composite to obtain the composite which has high damping and high flexibility after the intercalation material is molded and cured. As the preparation method utilizes carriers, all functional components are distributed uniformly and the intercalation material is simple in a preparation technology; besides, being compatible with the conventional molding method of the composite, the preparation method is low in cost.

Description

technical field [0001] The invention belongs to the technical field of functional composite materials, and relates to a toughening-damping double-functional intercalation material, a preparation method thereof and a product in which the intercalation material is applied to laminated carbon fiber-reinforced resin-based composite materials. Background technique [0002] Due to its high specific strength, high specific stiffness and other characteristics, continuous carbon fiber reinforced resin-based laminated composite materials are increasingly used as structural materials in aerospace and other high-end fields, and partially replace traditional metal structural materials, such as the US B787 aircraft The amount of composite materials used in China has reached about 50% of the amount used in aircraft structures, which shows the huge application prospects of this type of material. [0003] Continuous carbon fiber-reinforced resin-matrix composites are usually laminated from c...

Claims

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Application Information

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IPC IPC(8): B32B27/04B32B27/08B32B27/12B32B27/38B32B27/28
Inventor 益小苏郭妙才许亚洪张涛杨永岗温月芳倪楠楠关永军贺德龙
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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