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Volume 13
Issue 15
10.3390/polym13152432
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Article

Composite Polymer for Hybrid Activity Protective Panel in Microwave Generation of Composite Polytetrafluoroethylene -Rapana Thomasiana

by
Ionel Dănuț Savu
1,
Daniela Tarniță
2,*,
Sorin Vasile Savu
1,*,
Gabriel Constantin Benga
1,
Laura-Madalina Cursaru
3,
Dumitru Valentin Dragut
4,
Roxana Mioara Piticescu
5 and
Danut Nicolae Tarniță
6
1
Department of Engineering and Management of Technological Systems, University of Craiova, 1 Calugareni Str., 220037 Drobeta-Turnu Severin, Romania
2
Department of Applied Mechanics, University of Craiova, 107 Calea Bucuresti Str., 200512 Craiova, Romania
3
Advanced and Nanostructured Materials Laboratory, National R&D Institute for Non-Ferrous and Rare Metals, 102 Biruintei Bv., 077145 Pantelimon, Romania
4
Analysis Laboratory, National R&D Institute for Non-Ferrous and Rare Metals, 102 Biruintei Bv., 077145 Pantelimon, Romania
5
National R&D Institute for Non-Ferrous and Rare Metals, 102 Biruintei Bv., 077145 Pantelimon, Romania
6
Department of Anatomy, Faculty of Medicine, University of Medicine and Pharmacy, 2 Petru Rareș Str., 200349 Craiova, Romania
*
Authors to whom correspondence should be addressed.
Polymers 2021, 13(15), 2432; https://doi.org/10.3390/polym13152432
Submission received: 1 July 2021 / Revised: 19 July 2021 / Accepted: 20 July 2021 / Published: 23 July 2021
(This article belongs to the Special Issue Natural Resin/Hybrid Composites and Natural Reinforcements)
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Abstract

During the microwave sintering of a polymer-ceramic composite plasma discharge is experienced. The discharge could occur failure of the power source. The solution proposed by the paper is original, no similar solutions being presented by the literature. It consists of using a polymer-ceramic composite protective panel, to stop the plasma discharge to the entrance of the guiding tunnel. Six composites resulted by combining three polymers, Polytetrafluoroethylene (PTFE), STRATITEX composite and Polyvinylchloride (PVC) with two natural ceramics containing calcium carbonate: Rapana Thomasiana (RT) sea-shells and beach sand were used to build the protective panel.Theoretical balance of the power to the panel was analysed and the thermal field was determined. It was applied heating using 0.6-1.2-1.8-2.4-3.0 kW microwave beam power. The panels were subjected to heating with and without material to be sintered. It was analyzed: RT chemical (CaCO3 as Calcite and Aragonite), burned area (range: 200–4000 mm2) and penetration (range: 1.6–5.5 mm), and thermal analysis of the burned areas comparing to the original data. PTFE-RT composite proved the lowest penetration to 0.6 and 1.2 kW. Other 1.2 kW all composites experienced vital failures. Transformation of the polymer matrix of composite consisted of slightly decreasing of the phase shifting temperature and of slightly increasing of the melting start and liquidus temperature.
Keywords: polymer-shell powder composite; microwave heating; plasma discharge; thermal degradation; thermal field; Finite element analysis; numerical simulation of heat flow polymer-shell powder composite; microwave heating; plasma discharge; thermal degradation; thermal field; Finite element analysis; numerical simulation of heat flow

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MDPI and ACS Style

Savu, I.D.; Tarniță, D.; Savu, S.V.; Benga, G.C.; Cursaru, L.-M.; Dragut, D.V.; Piticescu, R.M.; Tarniță, D.N. Composite Polymer for Hybrid Activity Protective Panel in Microwave Generation of Composite Polytetrafluoroethylene -Rapana Thomasiana. Polymers 2021, 13, 2432. https://doi.org/10.3390/polym13152432

AMA Style

Savu ID, Tarniță D, Savu SV, Benga GC, Cursaru L-M, Dragut DV, Piticescu RM, Tarniță DN. Composite Polymer for Hybrid Activity Protective Panel in Microwave Generation of Composite Polytetrafluoroethylene -Rapana Thomasiana. Polymers. 2021; 13(15):2432. https://doi.org/10.3390/polym13152432

Chicago/Turabian Style

Savu, Ionel Dănuț, Daniela Tarniță, Sorin Vasile Savu, Gabriel Constantin Benga, Laura-Madalina Cursaru, Dumitru Valentin Dragut, Roxana Mioara Piticescu, and Danut Nicolae Tarniță. 2021. "Composite Polymer for Hybrid Activity Protective Panel in Microwave Generation of Composite Polytetrafluoroethylene -Rapana Thomasiana" Polymers 13, no. 15: 2432. https://doi.org/10.3390/polym13152432

APA Style

Savu, I. D., Tarniță, D., Savu, S. V., Benga, G. C., Cursaru, L.-M., Dragut, D. V., Piticescu, R. M., & Tarniță, D. N. (2021). Composite Polymer for Hybrid Activity Protective Panel in Microwave Generation of Composite Polytetrafluoroethylene -Rapana Thomasiana. Polymers, 13(15), 2432. https://doi.org/10.3390/polym13152432

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