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Carbon/carbon composite material binder, bonding method and carbon/carbon composite material component

A carbon composite material and binder technology, which is applied in the direction of aldehyde/ketone condensation polymer adhesives, adhesives, adhesive types, etc. and other problems, to achieve the effect of good resistance to strong acid, convenient preparation and easy availability of raw materials

Active Publication Date: 2017-06-16
SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at high temperature, tungsten can react with hydrochloric acid, sulfuric acid, nitric acid, and hydrofluoric acid, and this high-temperature adhesive is not suitable for high-temperature corrosive environments.
[0007] In summary, the existing carbon / carbon composite binders are difficult to fully meet the application requirements in high temperature strong acid and alkali corrosion environment.

Method used

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  • Carbon/carbon composite material binder, bonding method and carbon/carbon composite material component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Weigh 10 grams of phenolic resin (solid content 60%, viscosity 0.5 Pa s), 1 gram of chopped carbon fiber powder (length 100 ± 50 μm) and mix well to obtain a corrosion-resistant high-strength adhesive;

[0034] (2) Using carbon / carbon composite material as the bonding material, adopt absolute ethanol and acetone to clean and dry the bonding material;

[0035] (3) After brushing uniform adhesive on the joint surface of the bonding material, let it stand for 2 hours and then bond, and the bonding pressure is 1MPa;

[0036] (4) The bonded carbon / carbon composite material sample cured at room temperature was raised to 180°C for 2 hours at a heating rate of 1°C / min;

[0037] (5) Place the cured bonded carbon / carbon composite material in a heat treatment furnace, and raise the temperature to 1000°C, 1100°C, 1200°C, 1300°C, 1400°C, Heat treatment at 1500°C for 2 hours at high temperature. After taking it out, test the bond shear strength at different heat treatment temperat...

Embodiment 2

[0039] (1) Weigh 10 grams of phenolic resin (solid content 65%, viscosity 1.0 Pa s), 2 grams of chopped carbon fiber powder (length 200 ± 50 μm) and mix well to obtain a corrosion-resistant high-strength adhesive;

[0040] (2) Using carbon / carbon composite material as the bonding material, use absolute ethanol and acetone to clean and dry the bonding material

[0041] (3) After brushing uniform adhesive on the joint surface of the adhesive material, let it stand for 4 hours before bonding, and the bonding pressure is 2MPa;

[0042] (4) The bonded carbon / carbon composite material sample cured at room temperature was raised to 180°C for 2 hours at a heating rate of 3°C / min;

[0043] (5) Put the cured bonded carbon / carbon composite material in a heat treatment furnace, and raise the temperature to 1000°C, 1100°C, 1200°C, 1300°C, 1400°C, Heat treatment at 1500°C for 2 hours at high temperature. After taking it out, test the bond shear strength at different heat treatment temperat...

Embodiment 3

[0045] (1) Weigh 10 grams of phenolic resin (solid content 70%, viscosity 1.5 Pa s), 3 grams of chopped carbon fiber powder (length 300 ± 50 μm) and mix well to obtain a corrosion-resistant high-strength adhesive;

[0046] (2) Using carbon / carbon composite material as the bonding material, use absolute ethanol and acetone to clean and dry the bonding material

[0047] (3) After applying a uniform adhesive on the joint surface of the adhesive material, let it stand for 6 hours before bonding, and the bonding pressure is 3MPa;

[0048] (4) The bonded carbon / carbon composite material sample cured at room temperature was raised to 180°C for 2 hours at a heating rate of 5°C / min;

[0049] (5) Put the cured bonded carbon / carbon composite material in a heat treatment furnace, and raise the temperature to 1000°C, 1100°C, 1200°C, 1300°C, 1400°C, Heat treatment at 1500°C for 2 hours at high temperature. After taking it out, test the bond shear strength at different heat treatment temper...

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Abstract

The invention discloses a carbon / carbon composite material binder, which is used for bonding carbon / carbon composite materials in a high-temperature strong acid-base corrosion environment. The main components of the binder are liquid phenolic resin and chopped carbon fiber powder, the mass ratio of liquid phenolic resin to chopped carbon fiber powder is 100:10 to 100:50; the viscosity of the liquid phenolic resin is 0.5 to 2.5Pa ·s, the solid content is 60-80%; the diameter of the chopped carbon fiber powder is 5-8 μm, and the length is 100-500 μm. The invention also discloses a carbon / carbon composite bonding method and a carbon / carbon composite component. Compared with the prior art, the invention has better high temperature corrosion resistance and higher connection strength.

Description

technical field [0001] The invention relates to a binder and its application, in particular to a binder used for bonding carbon / carbon composite materials in a high-temperature strong acid-base corrosion environment. Background technique [0002] In petroleum, chemical, pharmaceutical, light industry and other industries, a large number of equipment (such as: pumps, pipelines, storage tanks, heat exchange equipment, etc.) Reduced service life and increased maintenance costs have a serious impact on long-term safe and reliable production. Therefore, there is an urgent need for equipment and materials with good corrosion resistance to solve the corrosion, Aging, energy consumption and many other issues. The currently commonly used metal materials limit their application in the above-mentioned equipment due to their poor corrosion resistance and high maintenance costs. Carbon / carbon composites can overcome the above problems. The entire system of carbon / carbon composite mat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J161/06C09J11/04B32B37/12B32B37/10B32B37/06B32B9/04B32B7/12
Inventor 张东生夏汇浩周兴泰杨新梅宋金亮
Owner SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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