Extruding and pulling process for low conductor core of carbon fiber composite material

A composite material and carbon fiber technology, which is applied in the field of low wire core extrusion and pulling technology of carbon fiber composite materials, can solve problems such as poor process effect, and achieve the effects of good molding effect, complete performance and improved toughness.

Active Publication Date: 2021-07-27
POWER MANAGEMENT CORP OF SHENGLI PETROLEUM ADMINISTATION BUREAU OF CHINA PETROCHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003]The existing carbon fiber composite materials in the production and preparation of the extrusion process adopted is relatively simple, the process effect is poor, the existing Chinese patent literature publication number CN106298010A discloses a Carbon fiber composite wire mandrel, the wire mandrel is composed of four parts: rigid core, flexible layer, anti-split layer and wear-resistant layer from the core to the surface; the rigid core is made of high-performance carbon fiber and thermosetting resin composite Forming; the flexible layer is formed by composite molding of glass fiber or hybrid fiber of glass fiber and carbon fiber and thermoplastic modified thermosetting resin. The document provides that the rigid core is formed by pultrusion of high-performance fiber and thermosetting resin Process preparation, the process is relatively simple, the process effect is poor, still need further research to improve the treatment

Method used

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  • Extruding and pulling process for low conductor core of carbon fiber composite material
  • Extruding and pulling process for low conductor core of carbon fiber composite material

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Experimental program
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Effect test

Embodiment 1

[0024] A carbon fiber composite material low wire core extrusion process of this embodiment comprises the following steps:

[0025] Step 1: Boil and clean the carbon fiber twice with acetone solution at 100°C, then carry out graft modification treatment, and then mix with epoxy resin at a weight ratio of 3:2, and the mixing speed is 200r / min. later use 60 Co-r rays were irradiated for 20s, and the irradiation was completed to obtain the matrix;

[0026] Step 2, firstly mix the matrix and processing aids according to the weight ratio of 1:2, the mixing speed is 100r / min, and the mixing time is 30min, and then sent to the drawing machine for extrusion, the outlet temperature is 120°C, and the extrusion speed is Be 220mm / min, obtain the base wire core;

[0027] Step 3: Thermally treat the base wire core first, and then place it in a quality upgrading solution for water bath treatment. The water bath conditions are -5°C for 20 minutes, and 10°C for 10 minutes;

[0028] Step 4: ...

Embodiment 2

[0037] A carbon fiber composite material low wire core extrusion process of this embodiment comprises the following steps:

[0038] Step 1: Boil the carbon fiber with acetone solution for 3 times, the boiling temperature is 100°C, then carry out graft modification treatment, and then mix with epoxy resin according to the weight ratio of 3:2, the mixing speed is 300r / min, later use 60 Co-r rays are irradiated for 20-30s, and the irradiation is completed to obtain the matrix;

[0039] Step 2: Mix the matrix and the processing aid at a weight ratio of 1:2, the mixing speed is 200r / min, and the mixing time is 40min, and then sent to the drawing machine for extrusion, the outlet temperature is 130°C, and the extrusion speed is 280mm / min, to obtain the substrate wire core;

[0040] Step 3: Thermally treat the base wire core first, and then place it in a quality upgrading solution for water bath treatment. The water bath conditions are -5°C for 20 minutes, and 10°C for 10 minutes;

...

Embodiment 3

[0050] A carbon fiber composite material low wire core extrusion process of this embodiment comprises the following steps:

[0051] Step 1: Boil and clean the carbon fiber for 3 times with acetone solution at 100°C, then carry out graft modification treatment, and then mix with epoxy resin at a weight ratio of 3:2, and the mixing speed is 250r / min. later use 60 Co-r rays were irradiated for 25s, and the irradiation was completed to obtain the matrix;

[0052] Step 2, firstly mix the matrix and processing aids according to the weight ratio of 1:2, the mixing speed is 150r / min, and the mixing time is 35min, and then sent to the drawing machine for extrusion, the outlet temperature is 125°C, and the extrusion speed is Be 50mm / min, obtain the base wire core;

[0053] Step 3: Thermally treat the base wire core first, and then place it in a quality upgrading solution for water bath treatment. The water bath conditions are -5°C for 20 minutes, and 10°C for 10 minutes;

[0054] Ste...

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Abstract

The invention discloses an extruding and pulling process for a low conductor core of a carbon fiber composite material. The extruding and pulling process comprises the following steps of: steps I, boiling and cleaning carbon fibers for 2-3 times by adopting an acetone solution at the boiling temperature of 100 DEG C, and then carrying out grafting modification treatment; mixing the carbon fibers with epoxy resin according to the weight ratio of 3: 2 at the mixing rotating speed of 200-300r / min, and then irradiating for 20-30s by adopting rays; and after irradiation is finished, obtaining a matrix. The carbon fibers are firstly treated with the acetone solution to remove surface impurities and then subjected to grafting modification treatment, and grafting points are formed on the surfaces of the carbon fibers through the grafting modification treatment. The epoxy resin is grafted to the carbon fibers through the grafting points, and therefore the carbon fiber / epoxy resin integrated structure is firmer. The grafted matrix is preliminarily extruded and pulled through a processing aid, and micro-silicon powder in the processing aid is easier to combine with the matrix after being treated.

Description

technical field [0001] The invention relates to the technical field of carbon fiber processing, in particular to a carbon fiber composite material low conductor core extrusion process. Background technique [0002] Carbon fiber is an inorganic high-performance fiber with a carbon content higher than 90%, which is transformed from organic fibers through a series of heat treatments. It is a new material with excellent mechanical properties. It has the inherent characteristics of carbon materials and has the softness of textile fibers. Machinable type is a new generation of reinforced fiber. The main purpose of carbon fiber is to compound with resin, metal, ceramics and other substrates to make structural materials. Carbon fiber reinforced epoxy resin composites have the highest comprehensive index of specific strength and specific modulus among existing structural materials. In fields with strict requirements on density, stiffness, weight, fatigue characteristics, etc., and i...

Claims

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Application Information

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IPC IPC(8): B29C70/52B29C70/54C08L63/00C08K13/06C08K9/00C08K9/06C08K7/06C08K9/04C08K3/36C08J7/12C08J7/14C08J5/06
CPCB29C70/521B29C70/525B29C70/528B29C70/54C08J5/06C08J7/12C08J7/14C08J2363/00C08K13/06C08K9/00C08K9/08C08K9/06C08K7/06C08K9/04C08K3/36
Inventor 郑春生刘玉林邹兵刘仁臣高佩忠闵锐刘天方王哲
Owner POWER MANAGEMENT CORP OF SHENGLI PETROLEUM ADMINISTATION BUREAU OF CHINA PETROCHEM CORP
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