Improved electromechanical properties of silicone dielectric elastomer composites by tuning molecular flexibility

Dan Yang; Shuo Huang; Mengnan Ruan; Shuxin Li; Yibo Wu; Wenli Guo; Liqun Zhang

doi:10.1016/j.compscitech.2017.12.010

Improved electromechanical properties of silicone dielectric elastomer composites by tuning molecular flexibility

Dan Yang
, Shuo Huang
, Mengnan Ruan
, Shuxin Li
, Yibo Wu
, Wenli Guo
, Liqun Zhang

Beijing Institute of Petrochemical Technology
Beijing Key Lab of Special Elastomeric Composite Materials
Beijing University of Chemical Technology

Research output: Contribution to journal › Article › peer-review

88 Scopus citations

Abstract

Silicone rubber (SR) composites exhibited significantly improved electromechanical properties via tuning the molecular flexibility by adding plasticizer. To decrease the enhanced elastic modulus of SR composites filled with high-dielectric-constant BaTiO₃ (BT) particles, silicone oil (SO) plasticizer was incorporated into the BT/SR composite to weaken the intermolecular interactions and break the structure of the filler network as result of swelling effect. The obviously decreased elastic modulus resulted in a high electromechanical sensitivity β and a relatively large actuated strain of 10.6% for 20 phr BT/SR composite filled with 50 phr SO at a low electric field of 25 kV/mm, approximately 380% increase compared to that of pure SR at the same electric field. The result indicates that tuning flexibility of composites is a good strategy to obtain high-performance dielectric elastomers.

Original language	English
Pages (from-to)	160-168
Number of pages	9
Journal	Composites Science and Technology
Volume	155
DOIs	https://doi.org/10.1016/j.compscitech.2017.12.010
State	Published - 8 Feb 2018
Externally published	Yes

Keywords

Elastic modulus
Mechanical properties
Nano particles
Polymer-matrix composites (PMCs)
Smart materials

Access to Document

10.1016/j.compscitech.2017.12.010

Cite this

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title = "Improved electromechanical properties of silicone dielectric elastomer composites by tuning molecular flexibility",

abstract = "Silicone rubber (SR) composites exhibited significantly improved electromechanical properties via tuning the molecular flexibility by adding plasticizer. To decrease the enhanced elastic modulus of SR composites filled with high-dielectric-constant BaTiO3 (BT) particles, silicone oil (SO) plasticizer was incorporated into the BT/SR composite to weaken the intermolecular interactions and break the structure of the filler network as result of swelling effect. The obviously decreased elastic modulus resulted in a high electromechanical sensitivity β and a relatively large actuated strain of 10.6\% for 20 phr BT/SR composite filled with 50 phr SO at a low electric field of 25 kV/mm, approximately 380\% increase compared to that of pure SR at the same electric field. The result indicates that tuning flexibility of composites is a good strategy to obtain high-performance dielectric elastomers.",

keywords = "Elastic modulus, Mechanical properties, Nano particles, Polymer-matrix composites (PMCs), Smart materials",

author = "Dan Yang and Shuo Huang and Mengnan Ruan and Shuxin Li and Yibo Wu and Wenli Guo and Liqun Zhang",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2018",

month = feb,

day = "8",

doi = "10.1016/j.compscitech.2017.12.010",

language = "英语",

volume = "155",

pages = "160--168",

journal = "Composites Science and Technology",

issn = "0266-3538",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Improved electromechanical properties of silicone dielectric elastomer composites by tuning molecular flexibility

AU - Yang, Dan

AU - Huang, Shuo

AU - Ruan, Mengnan

AU - Li, Shuxin

AU - Wu, Yibo

AU - Guo, Wenli

AU - Zhang, Liqun

PY - 2018/2/8

Y1 - 2018/2/8

N2 - Silicone rubber (SR) composites exhibited significantly improved electromechanical properties via tuning the molecular flexibility by adding plasticizer. To decrease the enhanced elastic modulus of SR composites filled with high-dielectric-constant BaTiO3 (BT) particles, silicone oil (SO) plasticizer was incorporated into the BT/SR composite to weaken the intermolecular interactions and break the structure of the filler network as result of swelling effect. The obviously decreased elastic modulus resulted in a high electromechanical sensitivity β and a relatively large actuated strain of 10.6% for 20 phr BT/SR composite filled with 50 phr SO at a low electric field of 25 kV/mm, approximately 380% increase compared to that of pure SR at the same electric field. The result indicates that tuning flexibility of composites is a good strategy to obtain high-performance dielectric elastomers.

AB - Silicone rubber (SR) composites exhibited significantly improved electromechanical properties via tuning the molecular flexibility by adding plasticizer. To decrease the enhanced elastic modulus of SR composites filled with high-dielectric-constant BaTiO3 (BT) particles, silicone oil (SO) plasticizer was incorporated into the BT/SR composite to weaken the intermolecular interactions and break the structure of the filler network as result of swelling effect. The obviously decreased elastic modulus resulted in a high electromechanical sensitivity β and a relatively large actuated strain of 10.6% for 20 phr BT/SR composite filled with 50 phr SO at a low electric field of 25 kV/mm, approximately 380% increase compared to that of pure SR at the same electric field. The result indicates that tuning flexibility of composites is a good strategy to obtain high-performance dielectric elastomers.

KW - Elastic modulus

KW - Mechanical properties

KW - Nano particles

KW - Polymer-matrix composites (PMCs)

KW - Smart materials

UR - https://www.scopus.com/pages/publications/85038117596

U2 - 10.1016/j.compscitech.2017.12.010

DO - 10.1016/j.compscitech.2017.12.010

M3 - 文章

AN - SCOPUS:85038117596

SN - 0266-3538

VL - 155

SP - 160

EP - 168

JO - Composites Science and Technology

JF - Composites Science and Technology

ER -

Improved electromechanical properties of silicone dielectric elastomer composites by tuning molecular flexibility

Abstract

Keywords

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