What is the effect of adding carbon black to the tire carcass?
1. Carbon black is an important reinforcing filler in the reinforcing filling system, which has an important impact on the physical and mechanical properties and processing technology of the rubber tire carcass.
2. Of course, adding carbon black to the tire carcass requires not only the reinforcing effect of carbon black, but also the high wear resistance of carbon black.
3. Adding carbon black to the tire carcass has another function of filling, so the function of adding carbon black to the tire carcass is to improve the reinforcement, wear resistance and filling of the tire carcass.
Application of Tire Pyrolysis Carbon Black in Tire Carcass
The logistics performance of tire thermal cracking carbon black rubber is better than that of some soft carbon black rubber. The chemically modified tire thermal cracking carbon black can replace some carbon black, and reduce the process loss and formulation cost in the rubber calendering pot. The physical properties and technological properties of the rubber compound are improved, and the performance of the finished tire is better. But now many tire pyrolytic carbon blacks are used as filling in tire carcass, which is not as good as imagined. It can be seen that tire pyrolytic carbon black cannot completely replace N series carbon black.
What type of carbon black is generally used for tire carcass?
There are many carbon blacks that should be used in tires, but N220, N330 and N660 are generally used, but there are other N series carbon blacks that can also be used in tire carcass.
N219 belongs to the super wear-resistant carbon black with low structure. It is a high-reinforced furnace carbon black with the lowest structure in the N200 series. It is mainly used for tire tread rubber, especially for off-road tires.
N220 belongs to super wear-resistant carbon black, which is a widely used high-reinforcement furnace-process carbon black with high structure, and its wear resistance is between super wear-resistant carbon black and high wear-resistant carbon black. Used for tread rubber of truck tires and passenger tires, etc.
N234 belongs to the super wear-resistant carbon black with high structure of new technology. It has a high structure and is a variety with better reinforcement and wear resistance in the N200 series carbon black. For high-speed tire tread compound and high-quality rubber products.
N326 is a low-structure, high-wear-resistant carbon black with high reinforcing ability and low heat generation. It is used as a tread compound for tires (including off-road tires) that require high strength and low heat generation.
N330 belongs to high wear-resistant carbon black, which is the most widely used high wear-resistant carbon black, used in tire tread, cord rubber, sidewall and various rubber industrial products.
N339 belongs to the new technology high structure and high wear resistance carbon black, mainly used in passenger car tires, truck tire tread rubber, conveyor belt covering rubber, rubber hose.
N539 is a low-structure fast-extrusion carbon black with medium reinforcing properties and is a general-purpose furnace carbon black. Used in tire carcass compound, especially for buffer layer compound mainly composed of natural rubber, and can also be used in tire base compound, tape cover compound and other rubber products, as well as wire and cable sheath compound.
N550 belongs to fast extrusion carbon black, and its reinforcing ability is the highest among soft carbon blacks. It is used in tire ply, sidewall, inner tube, extruded and calendered products.
N660 is a general-purpose carbon black, which is used in tire plies, inner tubes, bicycle tires, rubber hoses, tapes, cables, footwear and pressed products, model products, etc.
N774 is a non-polluting high elongation semi-reinforcing carbon black with moderate reinforcing properties. Used in tire plies, sidewalls, inner tubes, rubber hoses, tapes, etc.