scholarly journals In-situ preparation of hierarchical flower-like TiO2/carbon nanostructures as fillers for polymer composites with enhanced dielectric properties

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Nuoxin Xu ◽  
Qilong Zhang ◽  
Hui Yang ◽  
Yuting Xia ◽  
Yongchang Jiang
Keyword(s):  
Dielectric Properties ◽  
Polymer Composites ◽  
Carbon Nanostructures ◽  
In Situ Preparation

In situ preparation of nanoparticles/polymer composites

2008 ◽  
Vol 51 (11) ◽  
pp. 1886-1901 ◽  
Author(s):  
HaiZhu Sun ◽  
Bai Yang
Keyword(s):  
Polymer Composites ◽  
In Situ Preparation

Preparation and dielectric properties of polymer composites incorporated with polydopamine@AgNPs core–satellite particles

RSC Advances ◽  
2016 ◽  
Vol 6 (41) ◽  
pp. 34529-34533 ◽  
Author(s):  
Liang Zhang ◽  
Ranran Gao ◽  
Penghao Hu ◽  
Zhi-Min Dang
Keyword(s):  
Dielectric Properties ◽  
Polymer Composites

Polydopamine@AgNPs (PDA@AgNPs) core–satellite particles were fabricated by self-polymerization of dopamine and in situ reduction of Ag+ on the as-formed PDA surface.

scholarly journals Dielectric Properties of Wood-Polymer Composites: Effects of Frequency, Fiber Nature, Proportion, and Chemical Composition

2021 ◽  
Vol 5 (6) ◽  
pp. 141
Author(s):  
Imen Elloumi ◽  
Ahmed Koubaa ◽  
Wassim Kharrat ◽  
Chedly Bradai ◽  
Ahmed Elloumi
Keyword(s):  
Dielectric Properties ◽  
Polymer Composites ◽  
Wide Frequency Range ◽  
Dielectric Constants ◽  
Cellulose Content ◽  
Wood Fibers ◽  
Low Frequencies ◽  
Wood Polymer ◽  
Wood Polymer Composites ◽  
New Applications

The characterization of the dielectric properties of wood–polymer composites (WPCs) is essential to understand their interaction with electromagnetic fields and evaluate their potential use for new applications. Thus, dielectric spectroscopy monitored the evolution of the dielectric properties of WPCs over a wide frequency range of 1 MHz to 1 GHz. WPCs were prepared using mixtures of different proportions (40%, 50%, and 60%) of wood and bark fibers from various species, high-density polyethylene, and maleated polyethylene (3%) by a two-step process, extrusion and compression molding. Results indicated that wood fibers modify the resistivity of polyethylene at low frequencies but have no effect at microwave frequencies. Increasing the fiber content increases the composites’ dielectric properties. The fibers’ cellulose content explains the variation in the dielectric properties of composites reinforced with fibers from different wood species. Indeed, composites with high cellulose content show higher dielectric constants.

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