Study on the Properties of Asbestos free Self Enhanced Frictional Material and Its Development

In order to eliminate the harmfulness of asbestos enhanced frictional material on the environment and human body,the floating pearl obtained from fly ash was activated with the activator KH 550,and the treated material was used as basic enhanced filling material instead of asbestos to develop a new asbestos free self enhanced frictional material.This new material consists of the alcohal rubber phenolic resin and frictional modifying agent,besides the floating pearl.Testing results showed that under the given conditions,this asbestos free self enhanced frictional material has the advantages of the good tribological properties, short braking time,very weak pairs , wear and easy to obtain the floating pearl over the asbestos enhanced material.This research opens a new route for making full use of fly ash.