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Different Carbon Black
Dec 25, 2018

Carbon black type

Rubber carbon black belongs to carbon black, in order to distinguish it from special carbon black (used for ink, paint, etc.). It mainly plays a reinforcing role in rubber. The amount of rubber in general accounts for between 20% and 70% of raw rubber, according to the amount of different rubber products. Carbon black for rubber can be divided into several varieties: high wear resistance, reinforcing and semi-reinforcing. Among them, the high wear resistance is N110, N220, N330, N339, etc. The reinforcing type is N351N375, and the semi-reinforcing type is N550, N660, N774, etc. According to the different uses of rubber products, different types of carbon black pigments carbon black color black are selected to be used as pigments in inks, paints, paints and other products. According to the colouring intensity (or blackness and particle size), it is generally divided into four types: high-colour carbon black, medium-colour carbon black, common colour carbon black and low-colour carbon black. It is mainly produced by contact method and oil furnace method.


N220 is suitable for all kinds of rubber. Its wear resistance is 109 higher than that of N330. It can give high tensile strength, tear strength and certain conductivity to the rubber particles. Mainly used for tread rubber carrying passenger tyres and rubber products requiring high strength and wear resistance. 


N234 has better wear resistance than N220 when it is used under high harsh conditions. N326 is mainly used for high-speed tire tread rubber and high-quality rubber. 


N326 has high tensile strength, tear strength, wear resistance and anti-spalling performance in natural rubber. It is mainly used for tread compound of tyres (including off-road tires) requiring low heat intensity. It is also suitable for carbon black with good reinforcing properties for conveyor belts, sealing products and other high-quality rubber industrial products. It can give rubber particles better strength, tear resistance, abrasion resistance and elasticity. 

 N339 reinforcement performance, wear resistance and crack resistance near N220 carbon black, especially suitable for styrene-butadiene rubber and cis-rubber blending system. Mainly used for passenger tyre tread rubber, conveyor belt, hose and all kinds of rubber industry with high wear resistance.


The performance of N375 and N339 is basically the same, heat generation is slightly lower than that of N339. N550 is mainly used for car tire, truck tire and cross-country tire tread compound. 


N550 is suitable for natural rubber and various synthetic rubber. It is easy to disperse and can give the compound higher stiffness, faster extrusion speed and smooth surface expansion. Vulcanizate has good high temperature and thermal conductivity, reinforcing and elasticity.

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    Add:No.127, Yanzaohang Village, Xuyuanzi Township, Qingyun County, Dezhou city, Shandong Province

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    Mob:+8618053491991

    Email:twinklesheng@gmail.com

    Web:www.masterbatch-ls.com

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