Ferrocenyl hydrophobically modified carbon black and preparation method thereof

Abstract

The invention discloses ferrocenyl hydrophobically modified carbon black. A ferrocenyl derivative is grafted or bonded to the surface of carbon black, and the ferrocenyl derivative is a ferrocenyl aldoketone compound or a ferrocenyl carboxylic compound. Ferrocenyl is introduced onto the surface of the carbon black through a grafting / bonding reaction of the hydroxylated carbon black which is grafted and hydrolyzed by a silane coupling agent by means of good hydrophobicity, compatibility and reaction activity of the ferrocenyl aldoketone compound or the ferrocenyl carboxylic compound, so that the inherent defects of the carbon black are improved effectively, good hydrophobicity, dispersibility and rheological property are obtained, and the heat conductivity of the carbon black can be also improved by means of a heated decomposed product; meanwhile, the carbon black also has the effects of inhibiting smoke, resisting flame and the like, is functional carbon black filler, can improve the thermal ageing resistance of rubber effectively in a rubber reinforcing process, and is more remarkable in toughening and reinforcing effect on rubber.

Description

technical field [0001] The invention relates to the technical field of modified carbon black, in particular to a ferrocene-based hydrophobically modified carbon black and a preparation method thereof. Background technique [0002] Carbon black is an important reinforcing agent and filler for rubber products, which can improve the mechanical properties of rubber. More than 60% of the global carbon black is used in the rubber industry, and it is the second important raw material in the rubber industry after rubber. . The reinforcing effect of carbon black on rubber mainly depends on the properties of carbon black, such as particle size, aggregate shape and surface chemical properties of particles, etc. The finer the carbon black particles, the higher the structure and the better the reinforcing effect, but the carbon black It is a material with high surface energy, good hydrophilicity, weak adsorption to hydrophobic organic matter, easy aggregation between carbon black partic...

AI Technical Summary

Problems solved by technology

The reinforcing effect of carbon black on rubber mainly depends on the properties of carbon black, such as particle size, aggregate shape and surface chemical properties of particles, etc. The finer the carbon black particles, the higher the structure and the better the reinforcing effect, but the carbon black It is a material with high surface energy, good hydrophilicity, weak adsorption to hydrophobic organic matter, easy to agglomerate between carbon black particles, and poor dispersion in polymer matrix

[0003] Rubber and its rubber products will have cracks, brittleness, whitening, stickiness, hardening and other aging phenomena during long-term storage or use. The shock-absorbing rubber materials used for electronic products are very easy to age in a hot oxygen environment. If the thermal oxidation resistance is not improved, the performance of the rubber material will be greatly affected, and even the performance of the rubber material will be lost.

In the aging process of rubber materials, temperature is an important factor to accelerate aging. Rubber products with carbon black as a reinforcing material often have low thermal conductivity, and the heat accumulated inside cannot be dissipated in time, resulting in temperature rise and accelerated material aging.