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Modified carbon fiber high-strength composite material and preparation method thereof

A composite material and modified carbon technology, which is applied in the field of carbon fiber composite materials, can solve the problems of enhanced destructiveness, a large amount of production, and poor toughness, and achieves the effect of increasing strength and increasing impact resistance.

Pending Publication Date: 2022-04-12
山东跃华新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As for the above-mentioned technical materials, due to the high nature of carbon fiber itself, its height is very high, and based on the material, the material that coexists with toughness is a good material. Carbon fiber has high hardness but not strong toughness. Broken, it will produce a large number of fragments, but will enhance his destructiveness

Method used

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  • Modified carbon fiber high-strength composite material and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0022] A modified carbon fiber high-strength composite material, the raw material of the composite material is composed of the following materials in parts by weight: 15 parts of modified carbon fiber; 12 parts of TPU-polyurethane;

[0023] The manufacturing method of the modified carbon fiber is as follows: first, brush the outer surface of the mold of the workpiece with a layer of epoxy resin glue, and after curing, take out one-third of the prepared asbestos, spread it on the outer layer, It is coated with epoxy resin mixed with hardener, baked and cured under an infrared drying lamp, then placed in an oven to dry again, coated with epoxy resin again, attached with a carbon fiber film, and cured in an oven again. into modified carbon fiber, spare.

[0024] The temperature of the oven was set at 80° C. twice, and the drying time was controlled at 4 hours.

[0025] A third of the asbestos was made into separate roots and cut to 3 cm in length before being attached.

[0026]...

Embodiment 2

[0034] A modified carbon fiber high-strength composite material, the raw material of the composite material is composed of the following materials in parts by weight: 24 parts of modified carbon fiber; 15 parts of TPU-polyurethane;

[0035] The manufacturing method of the modified carbon fiber is as follows: first, brush the outer surface of the mold of the workpiece with a layer of epoxy resin glue, and after curing, take out one-third of the prepared asbestos, spread it on the outer layer, It is coated with epoxy resin mixed with hardener, baked and cured under an infrared drying lamp, then placed in an oven to dry again, coated with epoxy resin again, attached with a carbon fiber film, and cured in an oven again. into modified carbon fiber, spare.

[0036] The temperature of the oven was set at 100° C. twice, and the drying time was controlled at 5 hours.

[0037] One third of the asbestos was made into separate roots and cut to lengths of 5 cm before being attached.

[0...

Embodiment 3

[0046] A modified carbon fiber high-strength composite material, the raw material of the composite material is composed of the following materials in parts by weight: 20 parts of modified carbon fiber; 13 parts of TPU-polyurethane;

[0047] The manufacturing method of the modified carbon fiber is as follows: first, brush the outer surface of the mold of the workpiece with a layer of epoxy resin glue, and after curing, take out one-third of the prepared asbestos, spread it on the outer layer, It is coated with epoxy resin mixed with hardener, baked and cured under an infrared drying lamp, then placed in an oven to dry again, coated with epoxy resin again, attached with a carbon fiber film, and cured in an oven again. into modified carbon fiber, spare.

[0048] The temperature of the oven was set at 93° C. twice, and the drying time was controlled at 4 hours.

[0049] One third of the asbestos was made into separate roots and cut to lengths of 4 cm before being attached.

[0050...

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Abstract

The invention discloses a modified carbon fiber high-strength composite material and a preparation method thereof. The composite material comprises the following raw materials: 15-24 parts of modified carbon fiber; 12 to 15 parts of TPU (thermoplastic polyurethane); a manufacturing method of the modified carbon fiber comprises the following steps: firstly, brushing a layer of epoxy resin glue on the outer surface of a mold of a workpiece, after curing, taking out one third of prepared asbestos, placing the asbestos in a drying oven for drying again, coating epoxy resin again, attaching a carbon fiber film, and curing in the drying oven again to prepare the modified carbon fiber for later use; the tough layer connected with the plating layer on the surface of the carbon fiber is attached to the modified carbon fiber through connection of the asbestos yarn, sudden impact on the carbon fiber can be buffered, the asbestos is attached to the carbon fiber, even if the asbestos is broken, broken fragments cannot splash, and the asbestos yarn can well limit the integrity of all parts.

Description

technical field [0001] The invention belongs to the technical field of carbon fiber composite materials, and in particular relates to a modified carbon fiber high-strength composite material and a preparation method thereof. Background technique [0002] Carbon fiber is a fabric made of woven carbon filaments, which are fibers with a diameter of about 5-10 microns, composed mainly of carbon atoms. Carbon fiber offers several advantages, including high stiffness, high tensile strength, low weight, high chemical resistance, high temperature resistance, and low thermal expansion. These properties make carbon fiber very popular in aerospace, civil engineering, military and motorsports, among other competitive sports. However, compared with similar fibers such as glass fibers or plastic fibers, they are relatively expensive, such as a graft modified carbon fiber (CF) reinforced thermoplastic polyurethane (TPU) composite material and its preparation method with application number...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L63/00C08L33/12C08K7/06C08K7/12C08K3/22
Inventor 王明郭健刘勇徐玲玲
Owner 山东跃华新材料有限公司
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