Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 4, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3072355
Keywords
barium compounds; carbon; dielectric losses; elastic moduli; elasticity; nanocomposites; permittivity; rubber; nanofabrication
Categories
Funding
- NSF of China [50677002]
- Ministry of Science and Technology of China [2008AA03Z307]
- Program for New Century Excellent Talents in University
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Three-component high-elasticity nanocomposites consisting of methyl vinyl silicone rubber (VMQ) and nanosized barium titanate (BT) and carbon black (CB) were fabricated. Studies on dielectric property and elastic modulus of the CB-BT/VMQ nanocomposites showed that the composites had a low percolation threshold (f(c)=0.0355) due to the use of nanosized CB, and the maximum of dielectric permittivity was 960 at 10(3) Hz with a low dielectric loss (0.04). When the concentration of CB was close to f(c), the dielectric permittivity was sensitive to the change in temperature. The present dielectric properties and excellent elasticity would satisfy the need in practical applications, especially in some fields of cable accessories and heat sensitive sensors.
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