NATURAL GRAPHITE-REINFORCED CYCLIZED BUTADIENE ELASTOMERS
Natural graphite-reinforced, cyclized butadiene elastomers are prepared by mixing a homopolymer or copolymer of butadiene and a monoolefinic monomer with natural graphite, curing this mixture with an organic peroxide or mononuclear quinone and thereafter cyclizing the cured mixture by heating at a t...
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Zusammenfassung: | Natural graphite-reinforced, cyclized butadiene elastomers are prepared by mixing a homopolymer or copolymer of butadiene and a monoolefinic monomer with natural graphite, curing this mixture with an organic peroxide or mononuclear quinone and thereafter cyclizing the cured mixture by heating at a temperature of 350 DEG -700 DEG F. The natural graphite-reinforced, cyclized butadiene polymers are hard, infusible, thermoset materials which have outstanding physical properties, particularly modulii, and resistance to air oxidation, inorganic acids and other chemicals, and overall aging at elevated temperatures. |
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