Waste rubber ash modified by silane coupling agent as reinforced filler in acrylonitrile butadiene rubber cured by ionising radiation

Composites of acrylonitrile butadiene rubber loaded by different concentration (0-40 parts by weight per hundred parts of rubber (phr)) of waste rubber ash (WRA) that treated by Vinyltriethoxysilane (VTES) have been prepared, and then the composites subjected to gamma radiation at different doses ranged (0 up to 150 kGy) to desire curing. The WRA powder that treated by VTES silane (WRA-Sn) was characterised by different tools like Fourier transforms infrared spectroscopy and X-ray diffraction. Mechanical properties of composites tensile, elongation and modulus were shown enhancement by increasing the treatment of waste rubber and also by increasing irradiation dose. The crosslink density of composites increases by increasing WRA-Sn content and irradiation dose. The thermal stability of a variety of composites was done using thermogravimetric analysis. The results show that the WRA-Sn improves its thermal stability of composites.

Automated summary

The study prepared composites of acrylonitrile butadiene rubber loaded with different concentrations of waste rubber ash treated by VTES, subjected to gamma radiation for curing. Mechanical properties were enhanced by increasing waste rubber treatment and irradiation dose, with crosslink density increasing with WRA-Sn content and irradiation dose. Thermal stability of the composites improved with the addition of WRA-Sn.