Black cat rubber special carbon black

Black cat rubber special carbon black manufacturers introduce the performance of reinforcing rubber

The purpose of rubber-specific carbon black reinforcing rubber is to improve the tensile properties, tear resistance, modulus and wear resistance of rubber, and make rubber products more elastic and durable. Carbon black mainly adjusts the effect of reinforcing rubber by the size, structure and amount of carbon black.

(1) Tensile properties

The carbon black has small particle size, large surface activity, high structural degree and high tensile strength; as the amount of carbon black increases, the tensile strength increases first and then decreases.

(2) tear strength

Black particle size is small, tear strength is high; when the particle size is the same, for the crystalline rubber, the carbon black with low structural strength has high tear strength; for amorphous rubber, the carbon black with high structural strength, tear strength High; as the amount of carbon black increases, the tear strength increases first and then decreases.

(3) Fixed tensile stress and hardness

The carbon black has small particle size, high structural degree, large surface activity and large dosage, and the modulus and hardness of the rubber compound are high, and the structural degree has the greatest influence. The effect of carbon black on the modulus and hardness of the rubber is much greater than that of the rubber and vulcanization systems.

(4) Abrasion resistance

The carbon black has small particle size, large surface activity, good dispersibility and good wear resistance of the rubber compound.

(5) Flexibility

The particle size is small, the structure is high, the surface activity is large, the amount is large, and the elasticity of the rubber compound is poor. Among them, the amount of carbon black is the most affected.