TY - JOUR
T1 - Designing reliable silicone elastomers for high-temperature applications
AU - Ogliani, Elisa
AU - Yu, Liyun
AU - Mazurek, Piotr
AU - Skov, Anne Ladegaard
PY - 2018
Y1 - 2018
N2 - Reliability and durability are strict requirements for silicone elastomers employed in high-temperature applications, if long-time device performance is desired. Improving the thermal stability of silicone elastomers is a major challenge, addressed by both the scientific and the industrial community. Nevertheless, traditional methods such as adding heat-resistant fillers or chemical modifications still suffer from considerable shortcomings. Here, it is demonstrated that the thermal degradation behavior of silicone elastomers is affected strongly by network reactant stoichiometry. Comparative thermal degradation studies were performed on silicone elastomers synthesized with different stoichiometric ratios—and thereby different fractions of elastic, dangling, and sol structures. With the reported findings, we demonstrate how to optimize the stoichiometric ratio used to prepare silicone elastomers, in order to enhance their thermal stability by simple means in high-temperature applications.
AB - Reliability and durability are strict requirements for silicone elastomers employed in high-temperature applications, if long-time device performance is desired. Improving the thermal stability of silicone elastomers is a major challenge, addressed by both the scientific and the industrial community. Nevertheless, traditional methods such as adding heat-resistant fillers or chemical modifications still suffer from considerable shortcomings. Here, it is demonstrated that the thermal degradation behavior of silicone elastomers is affected strongly by network reactant stoichiometry. Comparative thermal degradation studies were performed on silicone elastomers synthesized with different stoichiometric ratios—and thereby different fractions of elastic, dangling, and sol structures. With the reported findings, we demonstrate how to optimize the stoichiometric ratio used to prepare silicone elastomers, in order to enhance their thermal stability by simple means in high-temperature applications.
KW - Thermal degradation mechanisms
KW - Thermal stability
KW - Silicone elastomers
U2 - 10.1016/j.polymdegradstab.2018.10.012
DO - 10.1016/j.polymdegradstab.2018.10.012
M3 - Journal article
SN - 0141-3910
VL - 157
SP - 175
EP - 180
JO - Polymer Degradation and Stability
JF - Polymer Degradation and Stability
ER -