Silicone-recycled pyrolyzed fillers for enhanced thermal - and flame - resistant silicone elastomers
نویسندگان
چکیده
Two types of fillers were prepared by controlled pyrolysis a commercial silicone elastomer. An aerobic process led to the formation silica powder while an anaerobic generated silicon-carbon-oxide (SiOC) ceramic. Each filler was incorporated into gum and thus-prepared obtained formulations further crosslinked with peroxide prepare new materials. Silica allowed controlling mechanical properties materials whereas enhanced thermal stability brought ceramic; mixing both joint (tensile strength about 2 MPa, elongation at break 300%, onset degradation 470 °C). The flame resistance behavior these tested cone calorimetry. Early insulating layer on heat-exposed surface moderated heat release (total 16.4 kJ/gPDMS) increased final residue (above 50%) compared silica-filled elastomers. This work opens possibilities transform waste useful inorganic produce performant thermal-resistant
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ژورنال
عنوان ژورنال: Polymer Degradation and Stability
سال: 2022
ISSN: ['1873-2321', '0141-3910']
DOI: https://doi.org/10.1016/j.polymdegradstab.2022.109947