Deep-crosslinked-structure carbon-fiber-reinforced phenolic-resin-base friction material and preparation method thereof

A friction material and phenolic resin technology, which is applied in the field of material science and processing, can solve the problems of difficult to bear large torsional moment, poor structural integrity of friction materials, easy delamination and damage, etc., to adjust the friction performance and improve the physical and mechanical properties. , The effect of overcoming the delamination problem

Active Publication Date: 2015-11-11
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the two-dimensional carbon cloth reinforced friction material has the disadvantages of low thickness, difficulty in bearing large torsional moment, and easy failure under severe working conditions such as high speed and high pressure, so it is only used in medium and low energy load conditions.
With the development of high-speed and heavy-duty vehicles, higher requirements are put forward for the safety and stability of the transmission system. How to overcome the defects of poor structural integrity, easy delamination and low strength of friction materials has become the key to solving the problem.

Method used

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  • Deep-crosslinked-structure carbon-fiber-reinforced phenolic-resin-base friction material and preparation method thereof
  • Deep-crosslinked-structure carbon-fiber-reinforced phenolic-resin-base friction material and preparation method thereof
  • Deep-crosslinked-structure carbon-fiber-reinforced phenolic-resin-base friction material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0026] A carbon fiber reinforced phenolic resin-based friction material with a deep cross-linked structure. The preparation method of the friction material includes three steps of preparing a carbon fiber prefabricated body with a deep cross-linked structure, preparing a matrix glue, and preparing a friction material:

[0027] (1) Preparation of deep crosslinked carbon fiber preform:

[0028] Weave 2 layers of deep cross-linked carbon fiber woven fabric on a three-dimensional woven prototype machine. The binding warp yarns are arranged at a certain angle to the thickness direction and run through the entire thickness direction of the material. The thickness is about 2mm, the warp density is 20 threads / 10cm, and the weft The density is 80 strands / 10cm, the weaving tension is moderate, and the carbon fiber prefabricated body with deep crosslinking structure is obtained; the carbon fiber is pre-oxidized carbon fiber or oxidized filament, and has certain weavability.

[0029] In t...

Embodiment 2

[0038] A carbon fiber reinforced phenolic resin-based friction material with a deep cross-linked structure. The preparation method of the friction material includes three steps of preparing a carbon fiber prefabricated body with a deep cross-linked structure, preparing a matrix glue, and preparing a friction material:

[0039] (1) Preparation of deep crosslinked carbon fiber preform:

[0040]Weave 4 layers of carbon fiber fabric with deep cross-linked structure on a three-dimensional woven prototype machine. The binding warp yarns are arranged at a certain angle to the thickness direction and run through the entire thickness direction of the material. The thickness is about 4mm, the warp density is 40 threads / 10cm, and the weft density It is 214 strands / 10cm, and the weaving tension is moderate, and a carbon fiber prefabricated body with a deep cross-linked structure is obtained; the carbon fiber is a carbon fiber pre-oxidized filament or an oxidized filament, and has a certain...

Embodiment 3

[0050] A carbon fiber reinforced phenolic resin-based friction material with a deep cross-linked structure. The preparation method of the friction material includes three steps of preparing a carbon fiber prefabricated body with a deep cross-linked structure, preparing a matrix glue, and preparing a friction material:

[0051] (1) Preparation of deep crosslinked carbon fiber preform:

[0052] Weaving 20 layers of deep cross-linked carbon fiber fabrics on a three-dimensional loom, the warp yarns are arranged at a certain angle to the thickness direction, and run through the entire thickness direction of the material, with a thickness of about 18mm, a warp density of 142 threads / 10cm, and a weft density of 658 root / 10cm; the selected carbon fiber is carbon fiber pre-oxidized filament or oxidized filament, which has certain weavability.

[0053] In the deep cross-linked carbon fiber prefabricated body, the carbon fiber runs through each layer along the thickness direction of the ...

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Abstract

The invention discloses a deep-crosslinked-structure carbon-fiber-reinforced phenolic-resin-base friction material. The preparation method of the friction material comprises the following steps: preparing a deep-crosslinked-structure carbon fiber prefabricated body, preparing a matrix colloidal liquid, and preparing the friction material, wherein the friction materials is prepared by immersing the deep-crosslinked-structure carbon fiber prefabricated body in the colloidal liquid and carrying out die pressing treatment. The stitching warp penetrates through the friction material in the whole thickness direction to form the three-dimensional structure, thereby overcoming the defect of delamination and increasing the interlaminar shear strength. The friction material has the advantages of excellent structural designability, excellent integral impact resistance and excellent fatigue resistance. The preparation method has the advantages of simple technique and low production cost, and is convenient for popularization.

Description

technical field [0001] The invention relates to the fields of material science and processing technology, in particular to a method for immersing woven deep cross-linked carbon fibers in phenolic resin glue solution and undergoing a series of treatments to prepare friction materials. Background technique [0002] With the development of science and technology and industrial production, carbon fiber reinforced phenolic resin-based friction materials have been widely used in automobiles, aerospace and other fields. The current carbon fiber-reinforced friction materials mostly use chopped fiber hot-pressing molding process, which has serious defects such as easy delamination, random structure, and low designability, which have become important problems restricting the development of carbon fiber friction materials. In addition, in recent years, a large number of studies on carbon fiber phenolic resin-based friction materials with two-dimensional carbon cloth prefabricated struc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/14C08L61/06C08K13/04C08K7/00C08K7/06C08K3/04C08K3/08C08K3/30C08K3/22C08J5/14C09K3/14
Inventor 卢雪峰钱坤俞科静孙洁张建民
Owner JIANGNAN UNIV
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