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Carbon fiber reinforced resin-based composite material interface microcell structure regulation and control method

A technology for reinforcing resin-based and composite materials, applied in the field of composite materials, can solve problems such as unstable treatment effects, and achieve stable treatment effects, uniform distribution, and strong pinning ability

Pending Publication Date: 2022-04-01
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for regulating the interfacial microstructure of carbon fiber-reinforced resin-based composite materials, which solves the problem that the existing method for preparing carbon-fiber-reinforced resin-based composite materials is affected by moisture and dust in the air, and the processing effect is unstable.

Method used

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  • Carbon fiber reinforced resin-based composite material interface microcell structure regulation and control method
  • Carbon fiber reinforced resin-based composite material interface microcell structure regulation and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A carbon fiber-reinforced resin-based composite material interface micro-domain structure control method, comprising the following steps:

[0031] Step 1. Toray T700 chopped carbon fibers with a diameter of 6 μm to 7 μm and a length of 1 mm to 3 mm are placed in a Soxhlet extractor together with an organic solvent for extraction to remove sizing agents and impurities on the surface of the carbon fiber; the extraction temperature is 80 ° C, and the extraction The time is 24 hours. The organic solvent is made by mixing ethanol, acetone and tetrahydrofuran with a volume ratio of 1:1:1; then the extract is soaked in ethanol solution and aqueous solution for 10 minutes, and finally dried at 80°C to obtain a clean surface. carbon fiber;

[0032] Step 2, put the pure niobium target into the multi-arc ion plating head, as the cathode, the target purity is 99.9%; install the pretreated carbon fiber on the turntable in the vacuum chamber, and evacuate the vacuum chamber to 4×10 ...

Embodiment 2

[0037] A carbon fiber-reinforced resin-based composite material interface micro-domain structure control method, comprising the following steps:

[0038] Step 1. Put Toray T700 chopped carbon fibers with a diameter of 6 μm to 7 μm and a length of 3 mm to 5 mm together with an organic solvent for extraction in a Soxhlet extractor to remove sizing agents and impurities on the surface of the carbon fibers; the extraction temperature is 70 ° C, and the extraction The time is 15 hours. The organic solvent is made by mixing ethanol, acetone and tetrahydrofuran with a volume ratio of 1:5:5; then the extract is soaked in ethanol solution and aqueous solution for 5 minutes, and finally dried at 80°C to obtain a clean surface. carbon fiber;

[0039] Step 2, put the pure titanium target into the multi-arc ion plating arc head, as the cathode, the target purity is 99.9%; install the pretreated carbon fiber on the turntable in the vacuum chamber, and evacuate the vacuum chamber to 3×10 -...

Embodiment 3

[0044] A carbon fiber-reinforced resin-based composite material interface micro-domain structure control method, comprising the following steps:

[0045] Step 1. Toray T700 chopped carbon fibers with a diameter of 6 μm to 7 μm and a length of 4 mm to 6 mm are placed in a Soxhlet extractor together with an organic solvent for extraction to remove sizing agents and impurities on the surface of the carbon fiber; the extraction temperature is 50 ° C, and the extraction The time is 18 hours. The organic solvent is made by mixing ethanol, acetone and tetrahydrofuran with a volume ratio of 1:2:3; then the extract is soaked in ethanol solution and aqueous solution for 8 minutes, and finally dried at 80°C to obtain a clean surface. carbon fiber;

[0046] Step 2, put the pure tantalum target into the multi-arc ion plating arc head, as the cathode, the target purity is 99.9%; install the pretreated carbon fiber on the turntable in the vacuum chamber, and evacuate the vacuum chamber to 8...

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Abstract

The invention discloses a carbon fiber reinforced resin matrix composite interface microcell structure regulation and control method which comprises the following steps: pretreating carbon fibers, removing surface slurry and impurities, then cleaning and drying to obtain carbon fibers with clean surfaces, loading a pure metal target material into a multi-arc ion plating arc head as a cathode, and carrying out high-temperature ion plating on the pure metal target material to obtain the carbon fiber reinforced resin matrix composite interface microcell structure. The pretreated carbon fibers are arranged on a rotating stand in a vacuum chamber, the vacuum chamber is vacuumized and heated, then argon is introduced, rich metal deposition is carried out on the surfaces of the carbon fibers, after deposition is completed, a sample is taken out, the sample is wrapped with graphite paper and then put into a graphite mold, then the graphite mold is put into an atmosphere protection furnace or a vacuum sintering furnace, and the carbon fibers are obtained. The preparation method comprises the following steps: heating a furnace to 900-1100 DEG C, carrying out an in-situ reaction, carrying out furnace cooling to obtain modified carbon fibers, and treating the modified carbon fibers and a resin solution through a vacuum-assisted resin injection molding process, a compression molding process or a resin transfer molding process to prepare the carbon fiber reinforced resin-based composite material.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and relates to a method for regulating and controlling the interface microstructure of a carbon fiber-reinforced resin-based composite material. Background technique [0002] Carbon fiber-reinforced resin base has both the high strength of carbon fiber and the low specific gravity of resin, and exhibits excellent comprehensive performance. Continuously improve and improve its mechanical properties. In terms of the mechanical properties of modified composite materials, researches are mainly carried out from three angles: one is to modify the resin; the other is to modify the surface of carbon fibers; the third is to regulate the interface micro-region. Among them, the organization of the interface micro-domain has an important impact on the performance and is a research hotspot. [0003] Patent CN106633741B discloses a carbon fiber / unsaturated resin interface modification method, mix...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/48B29C70/46B29C70/44B29C70/54
Inventor 钟黎声刘达樊荣邓超白海强刘宇
Owner XIAN UNIV OF TECH
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