What is name of granuals used in brake liner manufacturing instead of Asbestos & what r its properties.?

Question

What is name of granuals used in brake liner manufacturing instead of Asbestos & what r its properties.?

Answer 1

Friction material widely used for brake pads, brake linings and clutch facings incorporated into various vehicles and industrial machines is manufactured as follows.

Starting raw material containing raw material fiber such as heat-resistant organic fiber, inorganic fiber and metal fiber, and also containing raw material powder such as inorganic and organic filler, friction modifier and thermosetting resin binder is formed at a room temperature by a predetermined pressure (preforming) and then heat-formed at a determined temperature. Then it is cured (after-cure) and finished.

The starting raw material is granulated. That is, various raw material powder and raw material fiber,which are the starting raw material, are rolled while binder is being added to them, so that granules, the diameter of which are 2 to 5 mm, can

be obtained, and these granules are used as material for manufacturing friction material.

Raw material fibers are conventionally used for friction material. Examples of usable fiber materials are: metallic fiber made of steel, copper and brass; inorganic fiber such as carbon fiber, glass fiber and ceramic fiber of potassium titanate; and organic fiber such as aramid fiber and fire

resistance acrylic fiber.

Raw material powders are conventionally used for friction material. Examples of usable raw material powders are: friction modifiers containing friction particles such as cashew dust and rubber dust, metal particles such as copper, sulphur, aluminum and zinc, or metal oxide such as alumina, silica and zirconia; solid lubricant such as graphite and

molybdenum disulfide; scale-shaped substance such as vermiculite and mica; and filler such as barium sulfate and calcium carbonate.

Answer 2

Kellogs use it in one of their cereals I believe