Modifying method of aramid fiber for carbon-based ceramic friction material

• Main Authors: SHAN QUANQING, ZHOU GUIHONG
• Format: Patent
• Language: English
• Published: 25.11.2015
• Subjects: FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; LAUNDERING; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS

The invention relates to the technical field of raw material treatment of a carbon-based ceramic friction material, in particular to a modifying method of aramid fiber for the carbon-based ceramic friction material. The modifying method comprises the following steps of pretreating the aramid fiber by clarification limewater, dripping gasoline, and adding ethanol; stirring to enable the aramid fiber to completely react with each component, so as to improve the surface activity of the aramid fiber and the toughness of the aramid fiber; arranging into an ultrasonic treatment device to perform ultrasonic modifying, so as to improve the action of each component of the raw material on the surface of the aramid fiber; combining with urea phosphate, monocalcium phosphate and ultrasonic treatment, so as to change the internal structure of the aramid fiber, enhance the toughness and heat-resistant property of the aramid fiber, enhance the property of the carbon-based ceramic fiction material, improve the heat-resistant capability, abrasion-resistant efficiency and dynamic and static friction coefficient ratio of the carbon-based ceramic friction material, avoid the skidding of the prepared carbon-based ceramic friction material, and improve the brake safety.