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Method for testing fiber volume content of composite material

A composite material fiber and volume content technology, which is applied in the field of composite materials, can solve the problems of limited application and large error of fiber volume content, and achieve the effects of convenient operation, convenient production and application, and accurate test results

Inactive Publication Date: 2021-03-23
廊坊市飞泽复合材料科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Since this method does not consider the porosity in the actual produced samples, the calculated fiber volume content has a large error, and its application in actual production is limited.

Method used

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  • Method for testing fiber volume content of composite material
  • Method for testing fiber volume content of composite material
  • Method for testing fiber volume content of composite material

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Embodiment Construction

[0037] In order to enable those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below in conjunction with examples. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0038] This embodiment provides a method for testing the fiber volume content of a composite material, which is used to test the volume content of carbon fibers and glass fibers in the composite material, and the resin matrix of the composite material used is epoxy resin. The method comprises the steps of:

[0039] S1. Obtain the volume V of the composite material sample.

[0040] Take a beaker filled with distilled water or deionized water, remove...

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Abstract

The invention provides a method for testing the fiber volume content of a composite material. The method comprises the following steps of: obtaining the volume of a composite material sample; completely decomposing a resin matrix in the composite material sample by adopting a chemical dissolution method, and separating carbon fibers from glass fibers to obtain a solution containing a mixture of the carbon fibers and the glass fibers; filtering, cleaning and drying the solution, and weighing to obtain the total mass of the carbon fibers and the glass fibers; calcining the dried mixture of the carbon fibers and the glass fibers by adopting a physical calcining method to fully decompose the carbon fibers in the mixture, cooling, and weighing residual substances to obtain the mass of the glassfibers; and calculating the volume contents of the carbon fibers and the glass fibers in the composite material sample by adopting a formula. The volume contents of the carbon fibers and the glass fibers in the composite material are tested by adopting a method of combining a chemical dissolution method and a physical calcination method, the test result is accurate, the operation is convenient, and the production and the application are convenient.

Description

technical field [0001] The present application relates to the technical field of composite materials, in particular to a method for testing the fiber volume content of composite materials. Background technique [0002] Fiber-reinforced resin-based composite materials have excellent properties such as low density, high specific strength, high specific modulus, fatigue resistance, and corrosion resistance. They are currently widely used in aerospace, transportation rails, new energy vehicles, wind power and other fields. Whether the properties of fiber-reinforced resin-based composites meet the requirements of practical applications is very important. The volume content of reinforcing fibers in composite materials is an important basis for the analysis and design of mechanical properties of composite materials, and affects all aspects of composite materials. performance. [0003] At present, the fiber volume content test methods of fiber-reinforced resin-based composite mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
CPCG01N5/04
Inventor 赵春阳赵柔王超辛朝波
Owner 廊坊市飞泽复合材料科技有限公司
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