Dielectric Properties of Biocompatible and Biodegradable Polycaprolone and Polylactide and Their Nanocomposites in the Millimeter Wave Band

Meriakri, V. V.; Kalenov, D. S.; Parkhomenko, M. P.; Zhou, Shuangjie; Fedoseev, N. A.

doi:10.5923/j.materials.20120206.02

Cited by 9 publications

(1 citation statement)

References 5 publications

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“…The main advantages of these materials are their biocompatibility and slow degradation accompanied by the release of water and carbon dioxide which makes these polymers good ecologically pure packing material. Therefore, the study of the dielectric and electrical properties of these materials, in specific, the absorption of electromagnetic waves of various frequency bands, is of great scientific and practical interest [5]. The microwave absorbers are processed using different polymeric matrices and polymers have been traditionally considered as right carrier matrices for particles.…”

Section: Advances In Polymer Technologymentioning

confidence: 99%

The Effects of SLS on Structural and Complex Permittivity of SLS-HDPE Composites

Meli

Abbas

Zaid

et al. 2019

Advances in Polymer Technology

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RS-4050 is a rigid epoxy based magnetic castable microwave absorbing material; it has been used in many areas of waveguide application as a microwave waveguide terminations and dummy loads. In recent years, there is a demand for composites material with lower dielectric constant higher loss factor for microwave application. This research, the effect of soda lime silica (SLS) on structural and complex permittivity of soda lime silica-high density polyethylene (SLS-HDPE) composites was conducted in order to explore the possibility of substituting RS-4050 with SLS-HDPE composites as a microwave waveguide terminations and dummy loads. Elemental weight composition of the SLS glass powder and HDPE was identified through scaling of different percentage of SLS and HDPE. X-ray diffraction (XRD) was used to investigate the crystallinity behavior of SLS-HDPE composites. The proposed SLS-HDPE composites material was studied at frequencies 8 to 12 GHz. The study was conducted using waveguide Agilent N5230A PNA technique. The effect of microwave frequency on complex permittivity properties for SLS-HDPE composites of different percentages of SLS and HDPE (10% SLS-90% HDPE, 20% SLS-80% HDPE, 30% SLS-70% HDPE, 40% SLS-60% HDPE, and 50% SLS-50% HDPE) were investigated. Results showed the diffraction patterns reveal good amorphous quality with a genuinely properties structure. The microwave frequency and composites percentages significantly influenced the complex permittivity (real and imaginary) properties of the composites. Moreover, the complex permittivity increased as the percentage of SLS filler increased in the host matrix HDPE as a result of increased in composite density due to less volume being occupied by the filler as the percentage increased. The complex permittivity of the smallest and largest percentages of SLS (10% and 50%) was (2.67-j0.05) and (3.45-j0.35), respectively. The study revealed that the best sample for waveguide application as microwave terminator is 50% SLS as it has the highest dielectric constant, highest loss factor, and highest loss tangent as compared to 10% SLS to 40% SLS. Also 50% SLS has the highest absorption properties as compare to 10% SLS, 20% SLS, 30% SLS, or 40% SLS. The XRD physical structure of the SLS-HDPE composites revealed the absorption characteristics of different percentages of the materials. The SLS-HDPE composites can be applied in the area of waveguide as a microwave waveguide terminations and dummy loads.

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Section: Advances In Polymer Technologymentioning

confidence: 99%

The Effects of SLS on Structural and Complex Permittivity of SLS-HDPE Composites

Meli

Abbas

Zaid

et al. 2019

Advances in Polymer Technology

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A review of the research and advances in electromagnetic joining of fiber‐reinforced thermoplastic composites

Choudhury

Debnath

2019

Polymer Engineering & Sci

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The demand for polymer composites in structural and nonstructural applications has expanded rapidly due to their lightweight, high strength, and stiffness characteristics. Joining of polymer composite is not an easy task as inadequate joint strength leads to failure of a structure due to stress concentration. The following are the three basic methods available for joining of thermoplastic composites: adhesive joining, mechanical fastening, and fusion bonding. Electromagnetic joining is a class of fusion bonding where electromagnetic force is used for generation of heat. Electromagnetic joining has gained new interest among the research fraternity with the development of thermoplastic composites. This type of joining or welding technique offers many advantages over other joining techniques. This joining technique can be used for assembly as well as repairing of thermoplastic polymer‐based composites parts. The main aim of this article is to review the different electromagnetic joining methods for thermoplastic composites and present the recent developments in this area. The electromagnetic joining methods such as induction welding, microwave welding, and resistance welding have been comprehensively discussed in the context of their applicability for joining of thermoplastic polymer‐based composites. POLYM. ENG. SCI., 59:1965–1985, 2019. © 2019 Society of Plastics Engineers

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Environmentally Friendly Polylactic Acid/Modified Lignosulfonate Biocomposites

et al. 2016

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Dielectric Properties of Biocompatible and Biodegradable Polycaprolone and Polylactide and Their Nanocomposites in the Millimeter Wave Band

Cited by 9 publications

References 5 publications

The Effects of SLS on Structural and Complex Permittivity of SLS-HDPE Composites

The Effects of SLS on Structural and Complex Permittivity of SLS-HDPE Composites

A review of the research and advances in electromagnetic joining of fiber‐reinforced thermoplastic composites

Environmentally Friendly Polylactic Acid/Modified Lignosulfonate Biocomposites

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