The article discusses caking of loose materials and main methods of its prevention. The main characteristics of nitrile-butadiene rubber are outlined. It is possible to obtain hydrophobic-modifying additives during thermochemical degradation of organic matter peat. The author presents a method for analyzing anticaking agents based on peat and mineral compositions. The comparative analysis of the effectiveness of anticaking agents made of kaolin and chalk is made. It is established that the treatment of powdered nitrile butadiene rubber with a hydrophobically modified chalk makes it possible to reduce its ability to cake by 22.5 times during long-term storage compared with the control sample.
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