Fabricating bimodal microcellular structure in polystyrene/carbon nanotube/glass‐fiber hybrid nanocomposite foam by microwave‐assisted heating: A proof‐of‐concept study

In the current study, polystyrene/carbon nanotubes/glass fiber (PS/CNT/GF) hybrid foam with a bimodal cellular‐structure has been fabricated via microwave heating as a novel energy source. Microwave‐assisted (MA) samples not only demonstrated the lowest density as compared to traditional methods but...

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Bibliographic Details
Published in:Journal of applied polymer science 2022-05, Vol.139 (19), p.n/a
Main Authors: Shahbazi, Mehrnaz, Aghvami‐Panah, Mohammad, Panahi‐Sarmad, Mahyar, Seraji, Amir Abbas, Zeraatkar, Ali, Ghaffarian Anbaran, Reza, Xiao, Xueliang
Format: Article
Language:English
Subjects:
Carbon nanotubes
Cellular structure
Electrical resistivity
fibers
foams
Glass fiber reinforced plastics
graphene and fullerenes
Heating
Materials science
Mechanical properties
Microwave heating
Morphology
Nanocomposites
nanotubes
Polymers
Polystyrene resins
structure‐property relationships
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Summary:In the current study, polystyrene/carbon nanotubes/glass fiber (PS/CNT/GF) hybrid foam with a bimodal cellular‐structure has been fabricated via microwave heating as a novel energy source. Microwave‐assisted (MA) samples not only demonstrated the lowest density as compared to traditional methods but also represented superior compressive mechanical properties. Since the bimodal morphology has not been seen so far, the role of selective microwave heating has been thoroughly investigated from the microstructural point of view. Accordingly, the amount of receiving microwave radiations to heat up the system is controllable via the CNTs (as nucleating agents and absorbers) as well as radiation time. Moreover, 1–15 wt% fibers were incorporated to enhance mechanical performance, which led to turning uniform cellular structure to the bimodal pattern, and its cell morphological was studied thereafter. Electrical conductivity and dielectric permittivity properties have not been deprived of bimodality benefits which have been rigorously proven.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.52125