Durable, Low-Cost, and Efficient Heat Spreader Design from Scrap Aramid Fibers and Hexagonal Boron Nitride
نویسندگان
چکیده
Aramid, chemically known as para phenylene terephthalamide or PPD-T, has been widely used in the reinforcement of telecommunication cables, rubber materials (transmission belts, pneumatic belts), ballistic clothing, and frictional primarily due to their high tensile resistance, elastic modulus, excellent thermal stability (−80–200 °C). These unique properties aramid originate from its chemical structure, which consists relatively rigid polymer chains linked by benzene rings amide bonds (-CO-NH-). Here, this work inspired these properties, a heat spreader called Thermal Interface Material (TIM) is developed synthesizing resin scrap fibers. When hexagonal boron nitride (h-BN) filler introduced into as-synthesized form thin film sheet (50 μm), an in-plane conductivity 32.973 W/mK achieved firmly stacked symmetric arrangement h-BN matrix. Moreover, influence platelet size studied fabricating sheets with three different sizes (6–7.5 μm, 15–21 30–35 μm) resin. The results study show that increases, increases significantly. Since reported herein out fibers, cost involved manufacture will be greatly lower. As designed rather than graphene carbonaceous materials, spreading can employed for 5G antenna modules where like low dielectric constant electrical insulation are mandated.
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ژورنال
عنوان ژورنال: Symmetry
سال: 2022
ISSN: ['0865-4824', '2226-1877']
DOI: https://doi.org/10.3390/sym14122597