Silicate automobile clutch friction material and preparation method thereof

Abstract

The invention discloses a silicate automobile clutch friction material which comprises, by weight parts, 3-5 parts of vinyl trimethoxy silane, 26-30 parts of dimethyl sulfoxide, 6-8 parts of absolute ethyl alcohol, 50-60 parts of methyl methacrylate, 20-26 parts of butyl acrylate, 0.3-1 part of dodecanethiol, 20-34 parts of titanium sulfate, 16-20 parts of glucose, 40-55 parts of nano carbon powder, 200-300 parts of isopropanol, 80-100 parts of nylon 66, 0.04-0.06 part of azodiisobutyronitrile, 50-60 parts of acetone, 2-3 parts of trimethylolpropane, 1-2 parts of magnesium chloride, 2-3 parts of sodium tripolyphosphate, 0.6-1 part of hydroxysuccinic acid, 4-7 parts of tricalcium silicate, 6-8 parts of titanium nitride powder, 3-5 parts of phosphate and 2-3 parts of magnesium fluoride. Highly dispersed doping particles are prepared by blending modification of the silicate, magnesium fluoride and titanium nitride and the like, and the stability and weather resistance of a friction plate are improved.

Description

technical field [0001] The invention relates to the technical field of friction materials, in particular to a silicate automobile clutch friction material and a preparation method thereof. Background technique [0002] In recent decades, the automobile industry has developed rapidly. The main directions of automobile research are light weight, energy saving, emission reduction and safety performance improvement. Functional parts made of plastic are more and more widely used in automobiles. , while the clutch transmits torque through the friction force of the pressure plate pressing the friction plate. If the friction coefficient is large, it is easy to cause excessive friction, and if the friction coefficient is small, it is not conducive to the transmission of torque; [0003] In recent years, in order to improve the friction and wear performance of brake pads, nano-friction materials have received extensive attention. By adding nanoparticles, the micro-interface structure ...

AI Technical Summary

Problems solved by technology

, while the clutch transmits torque through the friction force of the pressure plate pressing the friction plate. If the friction coefficient is large, it is easy to cause excessive friction, and if the friction coefficient is small, it is not conducive to the transmission of torque;

[0003] In recent years, in order to improve the friction and wear performance of brake pads, nano-friction materials have received extensive attention. By adding nanoparticles, the micro-interface structure of friction material components has been significantly improved, which can effectively improve its thermal decay and thermal recovery performance. , by controlling the nano-effects of different shapes and multi-components, the comprehensive performance of nano-friction materials can be improved, especially the high-temperature friction and wear properties can be improved while taking into account the strength and toughness. However, the direct introduction of traditional dry mixing Nano-powders cannot maximize the modification effect of nanoparticles on friction materials, but will have some negative effects. Experience shows that direct mixing of nanoparticles will cause the nanoparticles to adhere to other particles during the mixing process. And on the surface of steel fiber, the bonding strength between the resin material and other materials is reduced, resulting in a small friction coefficient of the friction material and a large increase in the wear rate during the friction process