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Sample preparation method for mechanical property test of carbon fiber

A carbon fiber and performance technology, which is applied in the field of sample preparation for carbon fiber mechanical property testing, can solve the problems of cumbersome sample preparation methods, inability to guarantee the accuracy of test results, etc., and achieve the effect of improving efficiency

Inactive Publication Date: 2012-09-19
JIANGSU HANGKE COMPOSITE MATERIALS TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] In order to solve the technical problems that the existing sample preparation method for carbon fiber mechanical property test is cumbersome and cannot guarantee the accuracy of test results, the present invention provides a sample preparation method for carbon fiber mechanical property test

Method used

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  • Sample preparation method for mechanical property test of carbon fiber
  • Sample preparation method for mechanical property test of carbon fiber

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Embodiment Construction

[0022] The present invention provides a kind of sample preparation method that is used for carbon fiber mechanical property test, and specific method is as follows:

[0023] 1) Wind the carbon fiber to be tested to a rectangular bracket welded by stainless steel tubes with a constant tension. The rectangular bracket is welded by two bottom bars and two ends of support bars, as shown in figure 1 As shown, the two ends of the carbon fiber to be tested need to be fixed on the bottom rod of the bracket with medical adhesive tape; it is required to be wound at least 5 times. The diameter of the stainless steel pipe is generally 3 mm to 10 mm, preferably 5 mm to 8 mm. In order to strengthen the stability between the two support rods, a reinforcing rod 3 parallel to the lower rod is arranged between the two support rods.

[0024] 2) Put the bracket wound with the carbon fiber to be tested into a rectangular plate with a cover welded by a stainless steel plate filled with epoxy resin...

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Abstract

The invention relates to a sample preparation method for mechanical property test of a carbon fiber, which comprises the following steps of: 1) winding the carbon fiber to be tested on a bracket with certain tension, wherein the bracket comprises two bottom rods and two support rods vertically arranged between the two bottom rods, the carbon fiber to be tested is wound between the bottom rods andthe two ends to be tested are fixed on the bottom rods respectively; 2) putting the bracket wound with the carbon fiber to be tested into a container filled with epoxy resin glue solution, totally soaking the carbon fiber to be tested into the epoxy resin glue solution for 1 to 8 minutes, taking the bracket out and lightly shaking the bracket; 3) drying the carbon fiber which is soaked with the glue and to be tested; and 4) cooling the dried carbon fiber to be tested, and shearing the carbon fiber to be tested between the two bottom rods after cooling to obtain a sample. The method solves thetechnical problems that the conventional sample preparation method is fussy and cannot ensure the accuracy of the test result, and improves the efficiency of sample preparation for the mechanical property test of the carbon fiber and the uniformity of the sample glue soaking quantity.

Description

technical field [0001] The invention belongs to the technical field of material testing, and in particular relates to a sample preparation method for testing the mechanical properties of carbon fibers. Background technique [0002] Carbon fiber is a new type of carbon material that emerged in the 1960s. It has high specific strength, high specific modulus, high electrical and thermal conductivity, low thermal expansion coefficient, low density, high temperature resistance, fatigue resistance, creep resistance, and self-improvement. A series of excellent properties such as lubrication, it is an ideal functional material and structural material, widely used in aerospace, civil aviation, cultural and sports, transportation and other fields, and has broad application prospects. [0003] The mechanical properties of carbon fiber include tensile strength, tensile modulus, elongation at break, bulk density, linear density and other items. There are national standards for the test ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28
Inventor 王浩静刘福杰范立东程璐王红飞刘欢
Owner JIANGSU HANGKE COMPOSITE MATERIALS TECH
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