Method for preparing 12k multifilament sample and testing stretching performance of sample

A technology of tensile properties and testing methods, which is applied in the preparation of test samples, and the use of stable tension/pressure to test the strength of materials, etc., can solve the problems of unstable tensile strength testing, long sample preparation and testing cycles, etc. Achieve the effect of overcoming instability and meeting technical indicators

Active Publication Date: 2012-06-20
XIAN KANGBEN MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, domestic sample preparation is mainly manual sample preparation. During sample preparation and testing, the tensile strength test cannot stably reach the product index value of ≥4900MPa recognized in the industry, and the test sample needs to be reinforced, and the sample preparation and test cycle relatively long

Method used

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  • Method for preparing 12k multifilament sample and testing stretching performance of sample

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Experimental program
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Effect test

Embodiment 1

[0017] Present embodiment is a kind of sample preparation and testing method of 12k multifilament, and its specific process is:

[0018] Step 1, glue compounding: the components of the glue solution are TDE-85, powdery DDM and acetone, and the mass percentage thereof is TDE-85: powdery DDM: acetone=100:45:150. Weigh TDE-85, powdered DDM and acetone in turn according to the mass ratio requirements, put TDE-85, powdered DDM and acetone in a beaker, and then stir the three materials in the same direction with a glass rod until the solution is clear Evenly, the prepared glue solution is obtained. Seal the mouth of the beaker with plastic wrap to prepare the glue solution and place it for later use. The use period of the glue solution from the time of preparation to the end of dipping should not exceed 120min.

[0019] Step 2, dipping: Use the SKCL2-400 winding machine produced by Xi'an Longde Technology Co., Ltd. for dipping. It is required that the temperature of the glue tank ...

Embodiment 2

[0026] Present embodiment is a kind of sample preparation and testing method of 12k multifilament, and its specific process is:

[0027] Step 1, glue compounding: the components of the glue solution are TDE-85, powdery DDM and acetone, and the mass percentage thereof is TDE-85: powdery DDM: acetone=100:45:150. Weigh TDE-85, powdered DDM and acetone in turn according to the mass ratio requirements, put TDE-85, powdered DDM and acetone in a beaker, and then stir the three materials in the same direction with a glass rod until the solution is clear Evenly, the prepared glue solution is obtained. Seal the mouth of the beaker with plastic wrap to prepare the glue solution and place it for later use. The use period of the glue solution from the time of preparation to the end of dipping should not exceed 120min.

[0028] Step 2, dipping: use the SKCL2-400 winding machine produced by Xi'an Longde Technology Co., Ltd. for dipping. It is required that the temperature of the glue tank ...

Embodiment 3

[0034] Present embodiment is a kind of sample preparation and testing method of 12k multifilament, and its specific process is:

[0035] Step 1, glue compounding: the components of the glue solution are TDE-85, powdery DDM and acetone, and the mass percentage thereof is TDE-85: powdery DDM: acetone=100:45:150. Weigh TDE-85, powdered DDM and acetone in turn according to the mass ratio requirements, put TDE-85, powdered DDM and acetone in a beaker, and then stir the three materials in the same direction with a glass rod until the solution is clear Evenly, the prepared glue solution is obtained. Seal the mouth of the beaker with plastic wrap to prepare the glue solution and place it for later use. The use period of the glue solution from the time of preparation to the end of dipping should not exceed 120min.

[0036] Step 2, dipping: Use the SKCL2-400 winding machine produced by Xi'an Longde Technology Co., Ltd. for dipping. It is required that the temperature of the glue tank ...

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Abstract

The invention relates to a method for preparing a 12k multifilament sample and testing the stretching performance of the sample. The carbon fiber multifilament sample is obtained by preparing a gum from TDE-85, powdery DDM and acetone, impregnating and curing. When the carbon fiber multifilament sample is tested, the carbon fiber multifilament sample to be tested is wrapped by 80 or 100 mesh carborundum cloth and W28A metallographical sand paper. The method which adopts mechanical impregnation sample preparation allows a defect of the unstableness of manual sample preparation to be effectively overcome, no reinforcements to be needed by the cured sample, and the good exertion of performances of the whole multifilament to be guaranteed and makes test results be rapidly and stably obtained,and the sample can satisfy production requirements and technological indexes provided by manufacturers.

Description

technical field [0001] The invention relates to a sample preparation and testing method for multifilament tensile performance testing, in particular to a sample preparation and testing method for 12k multifilament tensile performance testing. Background technique [0002] Due to the strict confidentiality of carbon fiber-related technologies in various countries in the international community, it is found through searching literature that the resins usually used to test the tensile properties of carbon fiber multifilaments mainly include glycidyl ether epoxy resins and alicyclic epoxy resins, and the curing agents mainly include: Amine curing agents, anhydrides and latent curing agents. The sample preparation method usually uses a resin and a curing agent to prepare a glue solution, dips and cures, and then reinforces the test. [0003] Because of its high specific strength, high specific modulus, heat resistance, corrosion resistance, fatigue resistance, creep resistance a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N1/30G01N3/08
Inventor 郭继荣吴斌徐永花郭香李英志彭卫东
Owner XIAN KANGBEN MATERIAL
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