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Carbon fiber composite material and preparation method thereof

A composite material and carbon fiber technology, applied in chemical instruments and methods, lamination devices, lamination, etc., can solve the problems of product size and thickness changes, permanent deformation, heat insulation, and negative effects of sound insulation, etc., to achieve improved recovery sexual effect

Inactive Publication Date: 2020-05-05
广东航科新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because it is a low density material, it is a fluffy material, similar to glass wool (density 10-48Kg / m 3 ), its thermal insulation and sound insulation effects are naturally good, but the problem that cannot be ignored is: the material with such a low-density fluffy structure is prone to permanent deformation under the condition of long-term extrusion by external force, resulting in obvious changes in the size and thickness of the product, such as the product Both size and thickness become smaller, which affects its installation and use, and also has a certain negative impact on its heat insulation and sound insulation effects

Method used

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  • Carbon fiber composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A carbon fiber composite material, prepared by mixing 261.25g of carbon fiber and 46.1g of organic fiber, and then hot pressing. The diameter of the carbon fiber is 8μm and the density is 1.8g / cm. 3 ;

[0038] The organic fiber is made of LMPA polyamide with a melting point of 100°C.

[0039] Low melting point nylon (LMPA) is a kind of modified product with a lower melting point than conventional nylon. It has the characteristics of controllable melting point, narrow melting range and excellent bonding performance. It uses low melting point polyamide and ordinary fiber-forming polymer through composite Spinning technology.

[0040] The preparation method of the above carbon fiber composite material specifically includes the following steps:

[0041] S1: Mix carbon fiber and organic fiber to obtain a mixture;

[0042] At the same time, S1 includes the following sub-steps:

[0043] S11: Cut the filamentous carbon fiber and the filamentous organic fiber according to the weight throu...

Embodiment 2

[0049] A carbon fiber composite material, prepared by mixing 1500g of carbon fiber and 500g of organic fiber (the mass percentage of carbon fiber and organic fiber is 75%: 25%) and then hot pressing. The diameter of the carbon fiber is 5μm and the density is 1.76 g / cm 3 ;

[0050] The organic fiber is made of LMPA polyamide with a melting point of 100°C.

[0051] Low melting point nylon (LMPA) is a kind of modified product with a lower melting point than conventional nylon. It has the characteristics of controllable melting point, narrow melting range and excellent bonding performance. It uses low melting point polyamide and ordinary fiber-forming polymer through composite Spinning technology.

[0052] The preparation method of the above carbon fiber composite material specifically includes the following steps:

[0053] S1: Mix carbon fiber and organic fiber to obtain a mixture;

[0054] At the same time, S1 includes the following sub-steps:

[0055] S11: Cut the filamentous carbon fib...

Embodiment 3

[0061] A carbon fiber composite material, which is prepared by mixing 700g of carbon fiber and 300g of organic fiber (the mass percentage of carbon fiber and organic fiber is 70%: 30%) and then hot pressing. Among them, the diameter of the carbon fiber is 7μm and the density is 1.78 g / cm 3 ;

[0062] The organic fiber is made of LMPA polyamide with a melting point of 100°C.

[0063] Low melting point nylon (LMPA) is a kind of modified product with a lower melting point than conventional nylon. It has the characteristics of controllable melting point, narrow melting range and excellent bonding performance. It uses low melting point polyamide and ordinary fiber-forming polymer through composite Spinning technology.

[0064] The preparation method of the above carbon fiber composite material specifically includes the following steps:

[0065] S1: Mix carbon fiber and organic fiber to obtain a mixture;

[0066] At the same time, S1 includes the following sub-steps:

[0067] S11: Cut the fi...

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Abstract

The invention provides a carbon fiber composite material which is formed by mixing chopped carbon fibers and an organic material and then hot-pressing, wherein the hot-pressing temperature of hot-pressing molding is equal to or higher than the melting point of the organic material, and the weight ratio of the chopped carbon fibers to the organic material is (70-90): (10-30). The carbon fiber composite material has the properties of low density, flame retardance, fire prevention, high heat insulation and sound insulation of the carbon fiber composite material, and also has good pressure resistance and high resilience. The invention also provides a preparation method of the carbon fiber composite material. The composite material prepared by the method is stable and uniform in structure.

Description

Technical field [0001] The invention relates to the technical field of composite material production, in particular to a carbon fiber composite material and a preparation method thereof. Background technique [0002] With the rapid development of transportation technology and the current demand for environmental protection and energy saving in my country, people have put forward higher requirements for the lightweight and comfort of aircraft, rail vehicles, automobiles and cruise ships, and more and more attention is paid to transportation. NVH (noise, vibration and harshness) issues. [0003] Statistics show that about one-third of the failure of the entire vehicle is related to the NVH problem of the vehicle. If the NVH problem is not handled properly, it will directly affect the passenger experience. Therefore, nearly 20% of the research and development expenses of major automobile companies are used to solve the NVH problem of vehicles. [0004] At present, the conventional meth...

Claims

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Application Information

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IPC IPC(8): B32B9/00B32B9/04B32B33/00B32B37/06B32B37/10
CPCB32B5/02B32B5/26B32B9/047B32B33/00B32B37/06B32B37/10B32B2250/02B32B2250/20B32B2262/106B32B2307/102B32B2307/304B32B2307/3065
Inventor 杨克俭杨金杨淦锋宋庭柏
Owner 广东航科新材料有限公司
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