Superparamagnetic nano-biocomposites for application as dielectric resonator antennas

被引：6

作者：

da Silva, Andre Leandro ^{[1
]}

Rocha da Silva, Lucas Renan ^{[1
]}

de Andrade Camargo, Isabelle ^{[2
]}

da Silva Agostini, Deuber Lincon ^{[3
]}

Denardin, Juliano Casagrande ^{[4
]}

dos Santos Rosa, Derval ^{[2
]}

Mele, Giuseppe ^{[5
]}

Vasconcelos de Oliveira, Diego Lomonaco ^{[1
]}

Almeida Fechine, Pierre Basilio ^{[6
]}

Mazzetto, Selma Elaine ^{[1
]}

机构：

[1] Univ Fed Ceara, Dept Organ & Inorgan Chem, Rua Contorno S-N, BR-60451970 Fortaleza, Ceara, Brazil

[2] Fed Univ ABC, Ctr Engn Modeling & Appl Social Sci, Ave Estados 5001, BR-09210580 Santo Andre, SP, Brazil

[3] State Univ Sao Paulo, Dept Phys Chem & Biol, Rua Roberto Simonsen 305, BR-19060900 Presidente Prudente, SP, Brazil

[4] Univ Santiago, Dept Phys, Chile USACH, Ave Ecuador 3493, Santiago, Chile

[5] Univ Salento, Dept Engn Innovat, Via Amesano Km 4, I-73100 Lecce, Italy

[6] Univ Fed Ceara, Dept Analyt Chem & Phys Chem, Rua Contorno S-N, BR-60451970 Fortaleza, Ceara, Brazil

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2017年 / 185卷

关键词：

Cardanol; Bio-based thermoset plastic; Sponge gourd fiber; Magnetite; GLASS-TRANSITION TEMPERATURE; MAGNETIC-PROPERTIES; NANOPARTICLES; CONVERSION; CELLULOSE; GROWTH;

D O I：

10.1016/j.matchemphys.2016.10.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

There is a growing global interest for the development of green technologies that allow the use of products with less damage to environment, as well as for maximum and sustainable use of natural resources. The main aim of this study was to develop superparamagnetic nano-biocomposites for application as dielectric resonator antennas, from a combination of a cardanol-based thermoset plastic, chemically modified sponge gourd fibers (NaOH 10% and NaClO 1 wt%), and magnetite nanoparticles in different contents (1, 5, and 10 wt%). The magnetite particles exhibited nanometric size, high purity and crystallinity, and superparamagnetic character. All nano-biocomposites showed superparamagnetic behavior, excellent thermal stability, good biodegradation rates, and better mechanical strength for the material with magnetite 10 wt. All dielectric resonator antennas showed satisfactory return loss and suitability for technological applications, especially for.performance in broadband. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：104 / 113

页数：10

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