ébonite - définition. Qu'est-ce que ébonite
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Qu'est-ce (qui) est ébonite - définition

MOULDABLE HARD RUBBER COMPOUND
Hard rubber; Vulcanite (rubber); Vulcanite (hard rubber)
  • Ebonite applications from the 19th century
  • Green/black rippled ebonite fountain pen made in 2014 and black ebonite fountain pen made in 2017
  • Schematic presentation of two strands (<span style="color:blue;">'''blue'''</span> and <span style="color:green;">'''green'''</span>) of natural rubber after vulcanization with elemental sulfur

Ebonite         
·noun A hard, black variety of vulcanite. It may be cut and polished, and is used for many small articles, as combs and buttons, and for insulating material in electric apparatus.
Ebonite         
Ebonite is a brand name for a material generically known as hard rubber, and is obtained via vulcanizing natural rubber for prolonged periods. Ebonite may contain from 25% to 80% sulfur and linseed oil.
Ebonite         
Hard vulcanized India rubber, black in color. Specific resistance in ohms per cubic centimeter at 46º C. (115º F.): 34E15 (Ayrton); specific inductive capacity, (air = 1): 2.56 (Wüllner); 2.76 (Schiller); 3.15 (Boltzmann). It is used in electrical apparatus for supporting members such as pillars, and is an excellent material for frictional generation of potential. Its black color gives it its name, and is sometimes made a point of distinction from Vulcanite, q. v.

Wikipédia

Ebonite

Ebonite is a brand name for a material generically known as hard rubber, and is obtained via vulcanizing natural rubber for prolonged periods. Ebonite may contain from 25% to 80% sulfur and linseed oil. Its name comes from its intended use as an artificial substitute for ebony wood. The material has also been called vulcanite, although that name formally refers to the mineral vulcanite.

Charles Goodyear's brother, Nelson Goodyear, experimented with the chemistry of ebonite composites. In 1851, he used zinc oxide as a filler. Hugh Silver was responsible for giving it its name.