X-ray phase analysis of sulfur mastics on crushed quartz sand

Pure sulfur at melting point refers to chemically active substances that react with fillers to form compounds that are unstable to the action of water and mineral salts dissolved in it. In this work, a highly efficient X-ray phase analysis method was used to establish the reactivity of the dispersed phase, determine the structure and qualitative composition of compounds in sulfur mastics. Sulfur was used as a binder to create mastics, crushed quartz sand of various specific surfaces was used as a filler, and liquid rubber was used as a modifying additive. A comparative analysis of the X-ray diffraction spectra of the obtained materials was carried out. It has been established that as a result of sulfur vulcanization of rubber, a nanolayer is formed on the active surface of filler particles, preventing various kinds of chemical interactions at the temperature of manufacture of sulfur mastics and materials based on it.