A carbon fiber modification method in raw materials of carbon-based ceramic brake pads
A technology of carbon-based ceramics and carbon fiber, which is applied in the fields of carbon fiber, fiber processing, textiles and papermaking, etc., can solve the problems of carbon fiber modification and treatment, and achieve the effects of high temperature resistance performance guarantee, activity promotion and pass rate improvement
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0017] A method for modifying carbon fibers in carbon-based ceramic brake pad raw materials, comprising the following steps:
[0018] (1) Carbon fiber cutting: take the industrial carbon fiber felt and place it in a pulverizer to cut the carbon fiber. The carbon fiber after cutting is 3mm, and it is ready for use;
[0019] (2) Carbon fiber modification: place the carbon fiber obtained in step 1) in a cyano solution, wherein the mass volume ratio of carbon fiber to cyano solution is 0.5g: 15mL, and raise the solution temperature from room temperature to 1900°C in 30 minutes , and heat preservation treatment for 13 hours, then put it in the cooling box, according to the cooling rate of 3 ℃ / min, after cooling down to 150 ℃, heat preservation treatment for 1 hour, then add 0.7% carbon fiber weight hydrogen peroxide to it, and Lower the temperature to 5°C in 10s, keep it warm for 0.5h, and store it in the natural environment for 1h, wash it twice with 30% sodium chloride solution...
Embodiment 2
[0023] A method for modifying carbon fibers in carbon-based ceramic brake pad raw materials, comprising the following steps:
[0024] (1) Carbon fiber cutting: take the industrial carbon fiber felt and place it in a pulverizer to cut the carbon fiber. The carbon fiber after cutting is 7mm and ready for use;
[0025] (2) Carbon fiber modification: place the carbon fiber obtained in step 1) in the cyano solution, wherein the mass volume ratio of the carbon fiber to the cyano solution is 0.9g:25mL, and raise the solution temperature from room temperature to 2300°C in 50 minutes , and heat preservation treatment for 17 hours, then put it in the cooling box, according to the cooling rate of 27 ° C / min, after cooling to 170 ° C, heat preservation treatment for 3 hours, and then add 1.3% carbon fiber weight hydrogen peroxide to it, and Lower the temperature to 10°C in 30s, keep it warm for 1.1h, and store it in the natural environment for 2h, wash it with 30% sodium chloride soluti...
Embodiment 3
[0029] A method for modifying carbon fibers in carbon-based ceramic brake pad raw materials, comprising the following steps:
[0030] (1) Carbon fiber cutting: take the industrial carbon fiber felt and place it in a pulverizer to cut the carbon fiber. The carbon fiber after cutting is 3-7mm, and it is ready for use;
[0031] (2) Carbon fiber modification: place the carbon fiber obtained in step 1) in a cyano solution, wherein the mass volume ratio of carbon fiber to cyano solution is 0.8g: 20mL, and raise the solution temperature from room temperature to 2100°C in 40 minutes , and heat preservation treatment for 15 hours, then put it in the cooling box, according to the cooling rate of 17 ° C / min, after cooling to 160 ° C, heat preservation treatment for 2 hours, then add 1.1% carbon fiber weight hydrogen peroxide to it, and Lower the temperature to 8°C in 20s, keep it warm for 0.9h, and store it in the natural environment for 1.5h, then wash it with 30% sodium chloride solu...
PUM
| Property | Measurement | Unit |
|---|---|---|
| length | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More