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Preparation device and method for dissimilar resin gradient continuous woven carbon fiber composite material

A composite material and preparation device technology, which is applied in the field of dissimilar resin gradient continuous weaving carbon fiber composite material preparation device, can solve the problems such as the discount of the mechanical properties of the composite material at the interface, and achieve high consistency, quality assurance, and curing quality assurance. Effect

Active Publication Date: 2021-06-15
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, in practical applications, carbon fiber composites of two different resin matrices are usually connected together by riveting or bonding to meet the requirements of different resins for different working conditions. However, because the fiber bundles in the connection area are disconnected Not continuous, resulting in a significant discount on the mechanical properties of the composite at the interface

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation device and method for dissimilar resin gradient continuous woven carbon fiber composite material
  • Preparation device and method for dissimilar resin gradient continuous woven carbon fiber composite material
  • Preparation device and method for dissimilar resin gradient continuous woven carbon fiber composite material

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Effect test

preparation example Construction

[0070] Such as Figure 2-6 As shown, the present invention also provides a method for preparing a heterogeneous resin gradient continuous weaving carbon fiber composite material. Using the heterogeneous resin gradient continuous weaving carbon fiber composite material preparation device mainly includes the following steps:

[0071] Step 1, preparing a carbon fiber woven cloth 101 whose braiding angle continuously changes in a gradient.

[0072] Step 2: apply a release agent on the inner wall of the mold cavity 4a, and place multiple pieces of the carbon fiber woven cloth 101 layer by layer in the mold cavity 4a; move the upper mold down to the upper end of the lower mold, close the mold cavity 4a and place the multiple pieces of carbon fiber The woven cloth 101 is compacted and evacuated to a vacuum.

[0073] Step 3: Place the first resin solution and the second resin solution in the first liquid storage tank 6 and the second liquid storage tank 11 respectively, and open the ...

Embodiment 1

[0078] (1) Preparation of Gradient Continuous Woven Fabric

[0079] The preparation process of the woven cloth 101 whose angle is continuously changing in a gradient is as follows: firstly, a gradient fabric weaving device is used to input fabric structure parameters to weave a gradient continuous weaving carbon fiber round tube, according to the formula Control the feeding speed of the mandrel and the rotational angular velocity of the bobbin track to weave a gradient continuous braided tube with a change in the braiding angle; cut the braided tube along the axial direction, and place it under the flattening device to maintain pressure and flatten it, and wait until it is normal Press down the flat carbon fiber woven cloth 101.

[0080] (2) Preparation of epoxy resin solution

[0081] Prepare 100 parts of epoxy resin A (first epoxy resin), 10-15 parts of curing agent a (first curing agent); 100 parts of epoxy resin B (second epoxy resin), curing agent b (second curing agent...

Embodiment 2

[0098] The difference between this embodiment and embodiment 1 is that (3) is changed into six layers of gradient carbon fiber woven cloth.

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Abstract

The invention discloses a preparation device and method for a dissimilar resin gradient continuous woven carbon fiber composite material. The preparation device comprises a lower die which is provided with a concave die cavity in the center of the top, a sealing ring which is fixedly arranged at the top of the lower die and surrounds the die cavity, an upper die which is coaxially arranged above the lower die and is provided with a central through hole, a pressure head which is coaxially arranged in the central through hole and can axially move along the central through hole under driving of a driving device, a first liquid storage tank which communicates with one end of the die cavity through a first guide pipe, a second liquid storage tank which communicates with the other end of the die cavity through a second guide pipe, an air extractor, and an exhaust pipe which is arranged in the pressure head in an embedded manner; one end of the exhaust pipe is connected to the exhaust device, and the other end communicates with the center of the top of the die cavity; three groups of heating pipes are arranged in the lower die in an embedded manner and are close to the bottom surface of the die cavity; one group of heating pipes corresponds to the pressure head in position, and the other two groups of heating pipes correspond to areas on two sides of the pressure head.

Description

technical field [0001] The invention belongs to the technical field of resin-based carbon fiber preparation, and in particular relates to a preparation device and method for heterogeneous resin gradient continuous braided carbon fiber composite materials. Background technique [0002] Composite material is a multi-phase new material formed by optimizing the combination of two or more material components with different properties by using advanced preparation technology. Because of the process design in the material production process, the performance of each component material is mutually Promote optimization to obtain a series of advantages such as low density, high specific strength, high specific modulus, stable high temperature performance and corrosion resistance. In the context of automobile lightweighting, resin-based carbon fiber composites have the characteristics of low density, high specific modulus, high specific strength, and high damage tolerance, and are more ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/06B29C70/30B29C70/44B29C70/54B29C33/58B29C35/02B29C69/00
CPCB29C70/06B29C70/30B29C70/44B29C70/54B29C35/02B29C69/001B29C33/58
Inventor 庄蔚敏杨晓文施宏达王恩铭王相超肖璐
Owner JILIN UNIV
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