To provide a conductive roll for an electrophotographic apparatus that includes a conductive rubber elastic body layer having a lower hardness and lower settling properties than a conventional conductive rubber elastic body layer.

A conductive roll 10 for an electrophotographic apparatus includes a shaft body 12, and a conductive rubber elastic body layer 14 provided on the outer periphery of the shaft body 12, the conductive rubber elastic body layer 14 containing polar rubber, non-polar rubber, and a dispersing agent, wherein the polar rubber is at least one of nitrile rubber, hydrin rubber, and chloroprene rubber, wherein the non-polar rubber is at least one of isoprene rubber, hydrogenated isoprene rubber, and natural rubber, and wherein the dispersing agent is at least one of a polymer containing a block made of a nitrile rubber component and a block made of an isoprene rubber component, modified natural rubber, and modified isoprene rubber.

To provide a conductive roll for an electrophotographic apparatus that includes a conductive rubber elastic body layer having a lower hardness and lower settling properties than a conventional conductive rubber elastic body layer.

A conductive roll 10 for an electrophotographic apparatus includes a shaft body 12, and a conductive rubber elastic body layer 14 provided on the outer periphery of the shaft body 12, the conductive rubber elastic body layer 14 containing polar rubber, non-polar rubber, and a dispersing agent, wherein the polar rubber is at least one of nitrile rubber, hydrin rubber, and chloroprene rubber, wherein the non-polar rubber is at least one of isoprene rubber, hydrogenated isoprene rubber, and natural rubber, and wherein the dispersing agent is at least one of a polymer containing a block made of a nitrile rubber component and a block made of an isoprene rubber component, modified natural rubber, and modified isoprene rubber.

A functionalized graphene oxide nitrile rubber and A tooth-scar-free tooth block is provided. The functionalized graphene oxide nitrile rubber comprises the following components in parts by weight: 100-140 parts of nitrile rubber, 30-90 parts of a functionalized graphene oxide nitrile rubber masterbatch, 1.8-2.52 parts of a vulcanizing agent, 1.2-1.68 parts of a vulcanization accelerator, 5-7 parts of a vulcanization activator, 17-23.8 parts of a plasticizer, 2-2.8 parts of antioxidant, 59-86.6 parts of a filler, 0.1-0.14 parts of a curing agent, and 2-2.8 parts of dichlorophenol. The functionalized graphene oxide nitrile rubber above has excellent mechanical properties, a wide applicable temperature range and strong stability in use, and can be prepared into a tooth-scar-free tooth block.

A functionalized graphene oxide nitrile rubber and A tooth-scar-free tooth block is provided. The functionalized graphene oxide nitrile rubber comprises the following components in parts by weight: 100-140 parts of nitrile rubber, 30-90 parts of a functionalized graphene oxide nitrile rubber masterbatch, 1.8-2.52 parts of a vulcanizing agent, 1.2-1.68 parts of a vulcanization accelerator, 5-7 parts of a vulcanization activator, 17-23.8 parts of a plasticizer, 2-2.8 parts of antioxidant, 59-86.6 parts of a filler, 0.1-0.14 parts of a curing agent, and 2-2.8 parts of dichlorophenol. The functionalized graphene oxide nitrile rubber above has excellent mechanical properties, a wide applicable temperature range and strong stability in use, and can be prepared into a tooth-scar-free tooth block.

A functionalized graphene oxide nitrile rubber and A tooth-scar-free tooth block is provided. The functionalized graphene oxide nitrile rubber comprises the following components in parts by weight: 100-140 parts of nitrile rubber, 30-90 parts of a functionalized graphene oxide nitrile rubber masterbatch, 1.8-2.52 parts of a vulcanizing agent, 1.2-1.68 parts of a vulcanization accelerator, 5-7 parts of a vulcanization activator, 17-23.8 parts of a plasticizer, 2-2.8 parts of antioxidant, 59-86.6 parts of a filler, 0.1-0.14 parts of a curing agent, and 2-2.8 parts of dichlorophenol. The functionalized graphene oxide nitrile rubber above has excellent mechanical properties, a wide applicable temperature range and strong stability in use, and can be prepared into a tooth-scar-free tooth block.

The dynamic fatigue and hysteresis performances of fiber reinforced rubber compounds are compared using different plasticizers. Fiber reinforced rubber compounds including a non-linear functionalized fatty acid ester, preferably a trimellitate, and more preferably Tris (2-Ethylhexyl) Trimellitate (TOTM) are shown to demonstrate greatly improved dynamic fatigue and hysteretic performance as compared to reference fiber reinforced rubber compounds including conventional reference plasticizers such as Di-isodecyl phthalate (DIDP).

The dynamic fatigue and hysteresis performances of fiber reinforced rubber compounds are compared using different plasticizers. Fiber reinforced rubber compounds including a non-linear functionalized fatty acid ester, preferably a trimellitate, and more preferably Tris (2-Ethylhexyl) Trimellitate (TOTM) are shown to demonstrate greatly improved dynamic fatigue and hysteretic performance as compared to reference fiber reinforced rubber compounds including conventional reference plasticizers such as Di-isodecyl phthalate (DIDP).

The dynamic fatigue and hysteresis performances of fiber reinforced rubber compounds are compared using different plasticizers. Fiber reinforced rubber compounds including a non-linear functionalized fatty acid ester, preferably a trimellitate, and more preferably Tris (2-Ethylhexyl) Trimellitate (TOTM) are shown to demonstrate greatly improved dynamic fatigue and hysteretic performance as compared to reference fiber reinforced rubber compounds including conventional reference plasticizers such as Di-isodecyl phthalate (DIDP).

An elastomeric composition is disclosed. The elastomeric composition includes, per 100 parts by weight of rubber (phr): about 5 to about 30 phr of polybutadiene having a cis-1,4 linkage content of at least 95%; about 60 to 100 phr of a styrene/butadiene copolymer; an antioxidant; about 1 to about 20 phr carbon black; about 100-140 phr silica; a silane coupling agent and about 5 to about 40 phr of a polymer selected from the group consisting of ethylene-propylene-diene terpolymer, butyl rubber, poly(isobutylene-co-para-methylstyrene) and poly (isobutylene-co-para-methylstyrene-co-isoprene) terpolymer. The polymer based on ethylene-propylene-diene terpolymer, butyl rubber, poly(isobutylene-co-para-methylstyrene) and poly (isobutylene-co-para-methylstyrene-co-isoprene) terpolymer may be functionalized.

A thermoplastic acrylonitrile-butadiene-styrene copolymer/lignin blend is provided, whereas the blend comprises (i) an amount of acrylonitrile-butadiene-styrene copolymer; (ii) an amount of lignin; and (iii) an amount of compatibilizing agent capable of imparting improved ductility and impact strength to the resultant blend. Methods of improving impact strength and ductility of a thermoplastic acrylonitrile-butadiene-styrene copolymer/lignin blend and articles made therefrom are also disclosed.