Alignment of silver nanoparticles in polysiloxane crosslink network under direct electric field
Source abstract
Abstract
Abstract Silver nanoparticles in polydimethylsiloxane (PDMS) composite was aligned under direct current electric field in the range 3.3 kV/cm to 10 kV/cm. It recorded a constant increase in thermal conductivity displaying an average improvement of 95% conductivity with maximum of 0.391 W/mK in longitudinal direction compared to 0.301 W/mK in lateral direction. This anisotropic conductive behaviour is attributed to the mechanism of exclusion, agglomeration and alignment of the filler during in situ curing process. The observed change in thermal conductivity with filler volume concentration corroborated well with the improved model based on Effective Medium Theory (EMT). By considering Kapitza and filler-filler interface resistance, the predicted values of thermal conductivity of the filler-matrix interface к 0 i n t is 0.04 W/mK whilst thermal conductivity of the filler-filler interface к 0 c o n t is 0.8 W/mK respectively.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Thermal properties of materials · Thermal Radiation and Cooling Technologies · Carbon Nanotubes in Composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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