Silicon Hybrid EPDM Composite with High Thermal Protection Performance

Abstract

The effects of octaphenylsilsesquioxane (OPS), fumed silica, and silica aerogel on the thermal insulation properties of ethylene propylene diene monomer (EPDM) rubber were studied. On this basis, two kinds of fillers with good performances were selected to study the thermal insulation of an EPDM full-formula system. The results show that the addition of fumed silica or silica aerogel had a positive effect on the thermal insulation performance of EPDM rubber and its composite. A 30 wt% silica aerogel can be well dispersed in the EPDM rubber system and with a lower thermal conductivity compared with fumed silica. EPDM composite with 23.4 wt% fumed silica can produce more char residues at 1000 °C than at 500 °C in a burn-through test and formed the compact and porous char at 1000 °C, which had a lowest thermal conductivity. EPDM composite with fumed silica cannot be burned through 1000 °C burning, and comparison with silica aerogel revealed that it achieved the lowest back temperature and had a temperature of 388 °C after 800 s.

Micro and Nano Pollutants from Tires and Car Brakes Generated in Winter Season in the Poznan City Urban Environment

“…Thermal analysis results indicate that washing with dichloromethane effectively enabled the extraction of nanoparticles. Based on literature analysis, it was determined that Tmax for SBR rubbers is approximately 449°C [43], and for EPDM rubbers Tmax= 409°C [44]. In the conducted analyses in this article, it is not possible to unequivocally determine the qualitative composition of the rubber due to the diverse composition of the collected samples.…”

Micro- and Nano-Pollutants from Tires and Car Brakes Generated in the Winter Season in the Poznan City Urban Environment

“…Thermal analysis results indicate that washing with dichloromethane effectively enabled the extraction of nanoparticles. Based on the literature analysis, it was determined that T max for SBR rubbers is approximately 449 • C [41] and, for EPDM rubbers, T max = 409 • C [42]. In the conducted analyses in this article, it is not possible to unequivocally determine the qualitative composition of the rubber due to the diverse composition of the collected samples.…”