Effect of phase morphology and distribution of multi-walled carbon nanotubes on microwave shielding of poly(l-lactide)/poly(ε-caprolactone) composites
Source abstract
Abstract
Abstract Herein, effect of phase morphology and distribution of multi-walled carbon nanotubes (CNT) on microwave shielding was investigated in the poly(e-caprolactone)/poly( l -lactide)/CNT (PCL/PLA/CNT) composites. The composites with co-continuous and “sea-island” morphology was obtained by regulating the PCL/PLA ratio. Besides, the sandwiched and multi-layered morphology were fabricated by a two-step melt compression. The (10/90) PCL/PLA/CNT composites, which had the PCL/PLA ratio of 10/90, “sea-island” morphology and small PCL/CNT (PCLNT) “islands”, showed higher microwave shielding effectiveness (SE) than the other co-continuous and “sea-island” morphologies because of the relatively high conductivity and high-efficient multiple scattering. Furthermore, the sandwiched morphology which consisted of two PCLNT layers sandwiching PLA layer (PCLNT|PLA|PCLNT) showed the best shielding performance among the samples owning different morphology. This phenomenon was attributed to the high-efficiency reflection at interface, and then the reflected waves being absorbed by PCLNT layers, which was more efficient than multiple scattering in the “sea-island” morphology for microwave shielding.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Natural Fiber Reinforced Composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (52)
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