Electrically-conductive materials

Details Electrically-conductive materials Electrically-conductive materials

1983-03-17

1985-03-19

Barr, Josephine L.

Compositions

Electrically conductive or emissive compositions

Elemental carbon containing

252502, 252510, H01B 106

Patent

active

045058474

ABSTRACT:
Electrically-conductive materials comprising silicone rubber in combination with carbon particles in graphitic form incorporate a vegetable oil additive to provide enhanced physical and electrical resistance properties. Electrical resistivity for stress loadings below 500 grammes per square millimeter is less than 500 ohm-meters and for step changes in stress is of the order of 1K ohms-cm. A large number of vegetable oils provide these characteristics in the materials when the vegetable oils are present in the material in the range of 10-30% by volume. Carbon loading may be in the range 50-90% when measured in carbon grammes weight in relation to the milliliter content of the volume of silicone rubber and vegetable oil.

REFERENCES:
patent: 4051454 (1977-09-01), Leiser et al.
patent: 4145317 (1979-03-01), Sado et al.
patent: 4273697 (1981-06-01), Funimura
patent: 4382024 (1983-05-01), Seaman et al.
patent: 4387046 (1983-06-01), Mausch et al.
patent: 4433096 (1984-02-01), Bokeman et al.

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