Search Results - "Dutra, Rita Lazzarini"

Exploring the chemical structure of polydapsone by de Barros, Alexandra Helena, Lazzarini Dutra, Rita de Cássia, Liu, Andréa Santos, Pontes, Marcelo André Petry, Ferrão, Luiz Fernando Araujo, Kawachi, Elizabete Yoshie

“…Polydapsone is a promising polymer that has been prepared mainly as copolymers. Due to the similarity of dapsone monomer to aniline, its polymerization has…”
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Off-line TLC-IR (UATR) characterization of additives in EPDM rubber by Silva Murakami, Lidia Mattos, Diniz, Milton Faria, Silva, Leandro Mattos, Sanches, Natália Beck, de Cássia Lazzarini Dutra, Rita

“…Sulfur donor accelerators and vulcanization agents, such as peroxides, due to their chemical characteristics and good thermal stability properties in rubber…”
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On Structure and Secondary Linkages in Polymers Based on Glycidyl Azide Polymer and Diisocyanate by Dall’Agnol, Christiane Bueno, Dutra, Rita de Cássia Lazzarini, Diniz, Milton Faria, Madureira, Lucas Sousa, Cassu, Silvana Navarro

“…ABSTRACT Polymers based on glycidyl azide polymer (GAP) and isocyanate present molecular structures dependent on NCO/OH molar ratio and diisocyanate…”
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Development of Asbestos-free and Environment-Friendly Thermal Protection for Aerospace Application by Pinto, Juliano Ribeiro Aguiar, Sanches, Natália Beck, Santos, Régis da Silva, Oliveira, José Irineu Sampaio de, Dutra, Rita de Cássia Lazzarini

“…Thermal protection systems (TPS) are components designed to protect the internal and external areas of a rocket motor from high temperatures. There has been…”
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Evaluation of Techniques for Determination of Hydroxyl Value in Materials for Different Industrial Applications by Jesus, Laís Lopes, Murakami, Lídia Mattos Silva, Mello, Talita de Souza Dias, Diniz, Milton Faria, Silva, Leandro Mattos, Mattos, Elizabeth da Costa, Dutra, Rita de Cássia Lazzarini

“…When some materials need to be characterized, the hydroxyl number (IOH) determination is especially useful, mainly for those applied in the aerospace field…”
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Synthesis, Characterization and Applications of Iron Oxide Nanoparticles - a Short Review by Campos, Eunice Aparecida, Stockler Pinto, Denise Villela Barcza, Oliveira, José Irineu Sampaio de, Mattos, Elizabeth Da Costa, Dutra, Rita De Cássia Lazzarini

“…Iron oxide is a mineral compound that shows different polymorphic forms, including hematite (α-Fe2O3), magnetite (Fe3O4) and maghemite (γ-Fe2O3). Solid…”
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Chemical and Textural Characterization of Iron Oxide Nanoparticles and Their Effect on the Thermal Decomposition of Ammonium Perchlorate by Campos, Eunice Aparecida, Cortez Fernandes, Maria Tereza, Kawachi, Elizabete Yoshie, Sampaio de Oliveira, José Irineu, de Cássia Lazzarini Dutra, Rita

“…Metal oxide nanoparticles have been used as burning rate catalysts for ammonium perchlorate (AP) decomposition in composite solid propellants. Though most…”
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Determination of nitrogen and acrylic / styrene components in nitrocellulose systems by UATR and NIRA infrared techniques by Carvalho, Taynara Alves de, Gama, Amanda Carrett, Magalhães, Rachel Farias, Diniz, Milton Faria, Sanches, Natália Beck, Dutra, Rita de Cássia Lazzarini

“…Nitrocellulose (NC) is a polymer of great interest in the aerospace and paint/coating fields. However, there are gaps regarding quantitative analysis. Fast and…”
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Formation of Composite Polyaniline and Graphene Oxide by Physical Mixture Method by Vargas, Ludmila Resende, Poli, Anne Karoline Dos Santos, Dutra, Rita de Cássia Lazzarini, De Souza, Camila Brito, Baldan, Maurício Ribeiro, Gonçalves, Emerson Sarmento

“…The development of polyaniline and graphene oxide composites aims to join the unique properties of each material for aerospace applications. The present paper…”
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Analytical approaches to fiber-reinforced polymer composites: a short review by Takematsu, Marcia Murakoshi, Dutra, Rita de Cássia Lazzarini

“…Abstract A variety of fiber-reinforced polymer (FRP) has been described in literature, with a considerable subset of studies focused on fiber surface treatment…”
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TG/FT-IR characterization of additives typically employed in EPDM formulations by Sanches, Natália Beck, Cassu, Silvana Navarro, Dutra, Rita de Cássia Lazzarini

“…AbstractThermogravimetric analysis coupled to Fourier transform infrared spectroscopy (TG/FT-IR) is a very popular technique for rubbers characterization. It…”
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Quantification of Aerospace Polymer Blends by Thermogravimetric Analysis and Infrared Spectrometry by Rigoli, Paulo Santos, Murakami, Lídia Mattos Silva, Diniz, Milton Faria, Azevedo, Margarete Ferreira Prata, Mattos, Elizabeth Da Costa, Dutra, Rita de Cássia Lazzarini, Cassu, Silvana

“…ABSTRACT Ethylene-propylene-diene elastomer (EPDM) is employed as thermal insulation for rocket motors, as well as EPDM blends with ethylene vinyl acetate…”
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Synthesis, characterization and qualitative assessment of self-healing capacity of PU microcapsules containing TDI and IPDI as a core agent by de Souza Rodrigues, Vinicius Henrique, Estêvão Carrara, Alexandre, Rossi, Sabrina Sara, Mattos Silva, Leandro, de Cássia Lazzarini Dutra, Rita, Dutra, Jorge Carlos Narciso

“…This paper shows the results obtained during the synthesis, characterization and self-healing qualitative capacity assessment microcapsules made of…”
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Development and characterization of sodium polyacrylate/bentonite hydrogel with epoxy resin coating by Takematsu, Marcia Murakoshi, Baruel, Amanda Faria, Cassu, Silvana Navarro, Diniz, Milton Faria, Graves, David Alexandro, Dutra, Rita de Cássia Lazzarini

“…Abstract Composites are relevant to high-performance materials in the aerospace sector and have attracted the attention of the scientific and technological…”
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Quantification by FT-IR (UATR/NIRA) of NBR/SBR blends by Azevedo, Joyce Baracho, Murakami, Lidia Mattos Silva, Ferreira, Ana Carolina, Diniz, Milton Faria, Silva, Leandro Mattos, Dutra, Rita de Cássia Lazzarini

“…Abstract Rubber blends are important materials in automotive industry, as well as in other sectors. However, there are implications when suitable use of a…”
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UATR and NIRA evaluation in the quantification of ATBC in NC blends by Mello, Talita de Souza Dias, Diniz, Milton Faria, Dutra, Rita de Cássia Lazzarini

“…Abstract The paint industry requires rapid and accurate methodologies of raw materials qualitiy controls. For example, the evaluation of the suitable ratio of…”
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EPS foam blast attenuation in full-scale field test of reinforced concrete slabs by Mendonca, Fausto Batista, Urgessa, Girum Solomon, Dutra, Rita Lazzarini, Goncalves, Rene Francisco Boschi, Iha, Koshun, Rocco, Jose Atilio Fritz Fidel

“…Predicting explosion parameters is an important step when planning for blast tests or the design of blast resistant buildings. This paper presents a comparison…”
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Infrared Spectroscopy Applied to Materials Used as Thermal Insulation and Coatings by Sanches, Natália Beck, Pedro, Ricardo, Diniz, Milton Faria, Mattos, Elizabeth Da Costa, Cassu, Silvana Navarro, Dutra, Rita de Cássia Lazzarini

“…It is very important to control the characteristics of a polymer used in rubber compositions and paints in aerospace applications. Hence, the development of…”
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Characterization of additives in NR formulations by TLC-IR (UATR) by Murakami, Lidia Mattos Silva, Azevedo, Joyce Baracho, Diniz, Milton Faria, Silva, Leandro Mattos, Dutra, Rita de Cássia Lazzarini

“…Abstract It is a well-established fact that rubber accelerator is essential to provide solution in different sectors. However, there is a reversal process…”
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Applicability of FT-IR Techniques and Goniometry on Characterization of Carbon Fiber Surfaces by De Oliveira Junior, Mauro Santos, Diniz, Milton Faria, Dutra, Rita De Cássia Lazzarini, Massi, Marcos, Otani, Choyu

“…ABSTRACT Carbon fibers have been widely used as structural reinforcement in aeronautical composites, because of their exceptional mechanical properties…”
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