Binary Silicone Elastomeric Systems with Stepwise Crosslinking as a Tool for Tuning Electromechanical Behavior

Adrian Bele; Liyun Yu; Mihaela Dascalu; Daniel Timpu; Liviu Sacarescu; Cristian-Dragos Varganici; Daniela Ionita; Dragos Isac; Ana-Lavinia Vasiliu

doi:10.3390/polym14010211

Binary Silicone Elastomeric Systems with Stepwise Crosslinking as a Tool for Tuning Electromechanical Behavior

Adrian Bele^*, Liyun Yu, Mihaela Dascalu, Daniel Timpu, Liviu Sacarescu, Cristian-Dragos Varganici, Daniela Ionita, Dragos Isac, Ana-Lavinia Vasiliu

^*Corresponding author for this work

Petru Poni Institute of Macromolecular Chemistry

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Abstract

Interpenetrating polymer networks (IPNs) represent an interesting approach for tuning the properties of silicone elastomers due to the possible synergism that may occur between the networks. A new approach is presented, which consists of mixing two silicone-based networks with different crosslinking pathways; the first network being cured by condensation route and the second network by UV curing. The networks were mixed in different ratios and the resulted samples yield good mechanical properties (improved elongations, up to 720%, and Young’s modulus, 1 MPa), thermal properties (one glass transition temperature, ~−123^◦C), good dielectric strength (~50 V/µm), and toughness (63 kJ/m³).

Original language	English
Article number	211
Journal	Polymers
Volume	14
Issue number	1
Number of pages	13
ISSN	2073-4360
DOIs	https://doi.org/10.3390/polym14010211
Publication status	Published - 2022

Keywords

Dielectric elastomer transducers
Interpenetrating polymer networks
Silicone elastomers
Wave energy harvesting

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10.3390/polym14010211

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title = "Binary Silicone Elastomeric Systems with Stepwise Crosslinking as a Tool for Tuning Electromechanical Behavior",

abstract = "Interpenetrating polymer networks (IPNs) represent an interesting approach for tuning the properties of silicone elastomers due to the possible synergism that may occur between the networks. A new approach is presented, which consists of mixing two silicone-based networks with different crosslinking pathways; the first network being cured by condensation route and the second network by UV curing. The networks were mixed in different ratios and the resulted samples yield good mechanical properties (improved elongations, up to 720%, and Young{\textquoteright}s modulus, 1 MPa), thermal properties (one glass transition temperature, ~−123◦C), good dielectric strength (~50 V/µm), and toughness (63 kJ/m3).",

keywords = "Dielectric elastomer transducers, Interpenetrating polymer networks, Silicone elastomers, Wave energy harvesting",

author = "Adrian Bele and Liyun Yu and Mihaela Dascalu and Daniel Timpu and Liviu Sacarescu and Cristian-Dragos Varganici and Daniela Ionita and Dragos Isac and Ana-Lavinia Vasiliu",

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year = "2022",

doi = "10.3390/polym14010211",

language = "English",

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AU - Bele, Adrian

AU - Yu, Liyun

AU - Dascalu, Mihaela

AU - Timpu, Daniel

AU - Sacarescu, Liviu

AU - Varganici, Cristian-Dragos

AU - Ionita, Daniela

AU - Isac, Dragos

AU - Vasiliu, Ana-Lavinia

PY - 2022

Y1 - 2022

N2 - Interpenetrating polymer networks (IPNs) represent an interesting approach for tuning the properties of silicone elastomers due to the possible synergism that may occur between the networks. A new approach is presented, which consists of mixing two silicone-based networks with different crosslinking pathways; the first network being cured by condensation route and the second network by UV curing. The networks were mixed in different ratios and the resulted samples yield good mechanical properties (improved elongations, up to 720%, and Young’s modulus, 1 MPa), thermal properties (one glass transition temperature, ~−123◦C), good dielectric strength (~50 V/µm), and toughness (63 kJ/m3).

AB - Interpenetrating polymer networks (IPNs) represent an interesting approach for tuning the properties of silicone elastomers due to the possible synergism that may occur between the networks. A new approach is presented, which consists of mixing two silicone-based networks with different crosslinking pathways; the first network being cured by condensation route and the second network by UV curing. The networks were mixed in different ratios and the resulted samples yield good mechanical properties (improved elongations, up to 720%, and Young’s modulus, 1 MPa), thermal properties (one glass transition temperature, ~−123◦C), good dielectric strength (~50 V/µm), and toughness (63 kJ/m3).

KW - Dielectric elastomer transducers

KW - Interpenetrating polymer networks

KW - Silicone elastomers

KW - Wave energy harvesting

U2 - 10.3390/polym14010211

DO - 10.3390/polym14010211

M3 - Journal article

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JO - Polymers

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Binary Silicone Elastomeric Systems with Stepwise Crosslinking as a Tool for Tuning Electromechanical Behavior

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