ᱛᱮᱥᱟᱨ, ᱢᱮᱴᱨᱤᱠᱥ ᱨᱮᱭᱟᱜ ᱜᱩᱱ ᱟᱨ ᱢᱮᱴᱨᱤᱠᱥ ᱫᱚ ᱢᱮᱴᱨᱤᱠᱥ ᱨᱮᱭᱟᱜ ᱱᱟᱹᱢᱩᱱᱟ ᱨᱮᱭᱟᱜ ᱜᱚᱱᱚᱠ ᱠᱚ ᱨᱮᱭᱟᱜ ᱱᱟᱹᱢᱩᱱᱟ ᱨᱮ ᱵᱚᱫᱚᱞ ᱟᱠᱟᱱᱟ ᱾
The surface chemistry of the carbon black particles, the roughness of the surface of the particles, and the crystalline state of the carbon black have a certain influence on the reinforcing effect. The sulfonium group or the hydroquinone group on the surface of the carbon black can chemically react with the olefin rubber during the kneading and vulcanization of the carbon black, and exhibits a reinforcing effect.
ᱯᱳᱱᱟᱜ, ᱠᱟᱨᱵᱚᱱᱤᱠ ᱨᱮᱭᱟᱜ ᱮᱥᱮᱨ ᱫᱚ ᱦᱮᱱᱫᱮ ᱨᱮᱭᱟᱜ ᱮᱥᱮᱨ ᱨᱮᱭᱟᱜ ᱢᱤᱫ ᱵᱷᱮᱜᱟᱨ ᱮᱥᱮᱨ ᱠᱟᱱᱟ!
The amount of carbon black in the rubber can significantly affect the physical and mechanical properties of the vulcanized rubber. Practice has shown that hardness, tensile strength and heat build-up increase monotonically with the increase of carbon black. The rebound rate, elongation, and the like appear to decrease monotonously. Tensile strength, tear strength, and wear resistance are maximized with the increase of carbon black, and the better the reinforcement, the more obvious the maximum value appears. With the increase of the amount of carbon black, the wear resistance of vulcanized rubber is significantly enhanced at the beginning. After increasing to the maximum value, the carbon black is increased again, and the wear resistance is no longer changed significantly. When the total specific surface area of the carbon black in the rubber is equal, the carbon black of the larger particles has better wear resistance, and the smaller particles have less wear ᱥᱟᱹᱨᱤ ᱠᱟᱛᱷᱟ ᱫᱚ ᱱᱚᱶᱟ ᱠᱟᱱᱟ ᱡᱮ, 1.5 kg kaa kạmi lạgit̕ kạmi lạgit̕ jạruṛ ge kạmi lạgit̕ kạmi lạgit̕ jạruṛ kana kạmi kana kạmi kana kạmi kana kạmi kana kạmi kana kạmi kana ko, kina kina kạmi kana, kina kạmi kana kạmi kana kạmi kana kạmi kana ko ka ka kạmi kana kạmi kana ko ka ko . ka , ᱡᱟᱦᱟᱸ ᱫᱚ 5 kg kabock logg ar kana offio lạgit̕ kạmi kana.
1.5 million lạgit̕ lạgit̕ lạgit̕ lạgit̕ kạmi lạgit̕ kạmi lạgit̕ kạmi lạgit̕ kạmi lạgit̕ jạruṛ ge kạmi lạgit̕ jạruṛ ge kạmi lạgit̕ kạmi lạgit̕ kạmi lạgit̕ lạgit̕ jạruṛ ge kạmi lạgit̕ kana, ᱚᱱᱟ ᱫᱚ 8 mm ᱠᱟᱨᱵᱚᱱ ᱠᱟᱱᱟ ᱾
ᱜᱡᱚᱴᱱᱟ ᱫᱚ ᱠᱟᱨᱵᱚᱱ ᱰᱟᱭᱜᱽᱨᱟᱢ ᱟᱨ ᱢᱮᱴᱨᱤᱠᱥ ᱠᱟᱱᱟ ᱾
The basic properties of carbon black and the effect on the mixing of carbon black rubber are very significant. Due to the different properties of carbon black, the mixing speed and dispersion effect of carbon black are different, and various carbon blacks have different Mooney viscosities. . The powder feeding rate of carbon black in rubber is closely related to the particle size and structure. The smaller the particle size and the higher the structure, the longer the mixing time required. Carbon black with a small particle size and a low℃of structure has poor dispersion and long mixing time. The groove carbon black has a poor dispersion effect compared with the high wear-resistant carbon black, and the particle size of the two is not much different because the structure of the channel black is low.
, ᱡᱟᱦᱟᱸ ᱫᱚ ᱠᱟᱨᱵᱚᱱᱤᱠ ᱟᱨ ᱠᱟᱨᱵᱚᱱᱤᱠ ᱡᱤᱱᱤᱥ ᱠᱚ ᱠᱚᱢ ᱜᱮᱭᱟ, ᱚᱱᱟ ᱫᱚ ᱠᱟᱨᱵᱚᱱ ᱟᱨ ᱠᱟᱨᱵᱚᱱᱤᱠ ᱡᱤᱱᱤᱥ ᱠᱚ ᱠᱚᱢ ᱫᱟᱲᱮᱭᱟᱜ-ᱟ, ᱚᱱᱟ ᱫᱚ ᱠᱟᱨᱵᱚᱱᱤᱠ ᱟᱨ ᱠᱟᱨᱵᱚᱱᱤᱠ ᱡᱤᱱᱤᱥ ᱠᱟᱱᱟ᱾ rubber reinforcement. The gel is a rubber macromolecule that is combined with carbon black after being broken, and captures the hydrogen atom of the carbon black to form a chemical bond of the combination of the rubber and the carbon black and a physical bond of mutual adsorption. A similar network combination is formed by a combination of chemical and physical. The particle size and structure of carbon black have a significant effect on the ability to form a gel, with a greater influence on the℃of structure. The smaller the particle size and the higher the℃of structure, the easier it is to form a gel. Carbon black is more likely to be produced than carbon black having a high wear resistance particle size. It is more remarkable in rubber with low unsaturation. The amount of gel produced varies with the type of rubber. Natural gel, styrene butadiene rubber, butadiene and neoprene produce much more gel than butylbenzene and butadiene rubber. The low℃of unsaturation of butyl and ethylene propylene is almost impossible to form a carbon black gel. The temperature of the rubber is also closely related to the amount of carbon black gel. At high temperatures, the gel is promoted. During the mixing process, the carbon black gel can continue to form in the rubber. The higher the temperature is. The faster the gel content increases. The Mooney viscosity of the rubber compound has a great relationship with the rubber processing technology, and the high Mooney viscosity rubber compound often causes difficulties in the processing. The viscosity change of the carbon black rubber compound has a direct relationship with the carbon black gel. The larger the gel in the carbon black rubber compound, the higher the Mooney viscosity of the rubber compound. The finer the carbon black particle size, the higher the structure and the higher the dosage, the higher the viscosity of the rubber compound. The reason is that these factors promote gel ᱥᱟᱦᱴᱟ=}|᱗} |