Search Results - "Nunes, Regina Célia Reis"

A new device to simulate the performance of rubber dams for dental applications by Santos, Amara Eulália Chagas, Linhares, Felipe Nunes, Leite, Marcia Christina Amorim Moreira, Escócio, Vivane Alves, Nunes, Regina Célia Reis

“…Rubber dams employed for endodontic treatment are commonly based on natural rubber latex compounds and it is essential that they remain unbroken throughout the…”
Get full text

Polyamide worm gear: manufacturing and performance by Gasparin, Alexandre Luís, Corso, Leandro Luís, Tentardini, Eduardo Kirinus, Nunes, Regina Célia Reis, Forte, Maria Madalena de Camargo, Oliveira, Ricardo Vinicius Bof de

“…The focus of this paper is to establish a characterisation method for seven polyamide (PA) grades to determine the major material to manufacture an automotive…”
Get full text

Mechanical and rheological properties of nitrile rubber/fluoromica composites by Linhares, Felipe N., Gabriel, Cléverson F.S., de Sousa, Ana Maria F., Nunes, Regina Célia Reis

“…Fluoromica is a clay mineral obtained from chemical modification of talc with Na2SiF6. In this study, it was used to prepare clay mineral polymer composites…”
Get full text

Fracture behavior of nitrile rubber-cellulose II nanocomposites by LAPA, Vera Lucia C, MIGUEZ SUAREZ, Joao Carlos, VISCONTE, Leila Lea Y, REIS NUNES, Regina Célia

“…Nanocomposites of nitrile rubber (NBR) and cellulose II (Cel II) were prepared by co-coagulation of nitrile rubber latex and cellulose xanthate mixtures. The…”
Get full text

Performance of radar absorbing materials by waveguide measurements for X- and Ku-band frequencies by Pinho, Magali Silveira, Gregori, Maria Luisa, Nunes, Regina Célia Reis, Soares, Bluma Guenther

“…In this work, samples consisting of an elastomeric matrix containing different kinds of active materials in particulate form were prepared for reflectivity…”
Get full text

Oil shale solid waste recycling in the development of new silica fillers for elastomeric composites by Perruso, Carlos Renato, Neto, Arnaldo Alcover, Neumann, Reiner, Nunes, Regina Célia Reis, De Araújo Fonseca, Marcus Vinícius, Nascimento, Regina Sandra Veiga

“…The production of Brazilian shale oil gives rise to 6600 ton/day of a solid waste of retorted shale, and larger amounts of dolomitic waste rock are generated…”
Get full text

Mechanical and Flammability Properties of ATH-Filled EPDM Compositions by Canaud, Cristine, Visconte, Leila Léa Yuan, Reis Nunes, Regina Célia

“…Poly(ethylene‐co‐propylene‐co‐diene) (EPDM) compositions filled with mixtures of aluminium hydroxide (ATH) and carbon black (HAF) were evaluated for electrical…”
Get full text

Effect of different cure systems on natural rubber/nanocellulose nanocomposites in rheological, physical-mechanical, aging, and mechanical properties by Honorato, Luciana Ribeiro, Visconte, Leila Lea Yuan, Nunes, Regina Célia Reis

“…The effect of different crosslink structures was studied in nanocomposites obtained by co-precipitation of natural rubber (NR) latex and aqueous solution of…”
Get full text

Physical-mechanical behavior of nitrile rubber-synthetic mica nanocomposites by Nunes, Janis Schutte, Ito, Edson Noriyuki, Gabriel, Cléverson Fernandes Senra, Lopes, Thiago Castro, Nunes, Regina Célia Reis

“…Abstract Nitrile rubber (NBR) nanocomposites with different contents of synthetic Somasif ME-100 mica (sodium-fluorohectorite) were obtained by melt…”
Get full text

Rheological properties and curing features of natural rubber compositions filled with fluoromica ME 100 by Honorato, Luciana, Dias, Marcos Lopes, Azuma, Chiaki, Nunes, Regina Célia Reis

“…Abstract This work aims at studying not only the rheological behavior of natural rubber-based compositions by making use of different contents of fluoromica or…”
Get full text

Effect of the cure system on aging resistance of natural rubber compounds by Honorato, Luciana Ribeiro, Nunes, Regina Celia Reis, Cosme, Jaqueline Guimarães Lima, Visconte, Leila Lea Yuan, Peres, Augusto Cesar de Carvalho, Costa, João Manoel

“…This work investigates natural rubber (NR) composites vulcanized with different combinations of accelerators in efficient cure systems. The NR compounds were…”
Get full text

Tire tread rubber compounds with ternary system filler based on carbon black, silica, and metakaolin: Contribution of silica/metakaolin content on the final properties by Gabriel, Cléverson Fernandes Senra, Gabino, Alessandra de Alencar Padua, de Sousa, Ana Maria Furtado, Furtado, Cristina Russi Guimarães, Nunes, Regina Célia Reis

“…Carbon black and high performance silica have been widely employed as binary system filler in tire tread formulations. This study evaluated the total and…”
Get full text

Dielectric properties of flame resistant EPDM composites by Canaud, Cristine, Visconte, Leila Léa Yuan, Sens, Márcio Antônio, Nunes, Regina Célia Reis

“…Formulations of ethylene-propylene-diene rubber containing mixtures of aluminum hydroxide (ATH) and carbon black (HAF) as fillers were developed, aiming to…”
Get full text

Aluminum hydroxide and carbon black filled NBR/PVC composites—vulcanization and processability studies by Lapa, Vera Lúcia da Cunha, Visconte, Leila Léa Yuan, Affonso, José Eduardo de Sena, Nunes, Regina Célia Reis

“…The influence of aluminum hydroxide (ATH) and carbon black (CB) was investigated in vulcanizable compositions of the physical mixture NBR/PVC…”
Get full text

Influence of Preparation Mode on Thermal Degradation of NR/BR Blends by Castro, Daniele Freitas de, Nunes, Regina Célia Reis, Visconte, Leila Lea Yuan, Silva, Gustavo Monteiro da

“…The influences of elastomer ratio and preparation mode on the degradation behavior of NR/BR Natural rubber and polybutadiene rubber blends were investigated by…”
Get full text

Thermal Degradation of Natural Rubber Male Condoms by Bó, Maria Cristina, Lopes, Léa, Visconte, Leila Lea Yuan, Nunes, Regina Célia Reis

“…Condoms play an important role in the prevention of human immunodeficiency virus transmission. The prediction of condom shelf life became a high priority for…”
Get full text

Epoxidized natural rubber and hydrotalcite compounds: rheological and thermal characterization by Silva, Vanessa Macedo da, Nunes, Regina Célia Reis, Sousa, Ana Maria Furtado de

“…Abstract Epoxidized natural rubber (ENR) and synthetic non-modified hydrotalcite (HT) compounds were prepared and evaluated. Natural rubber (NR) was epoxidized…”
Get full text

Rheological characterization of ABS, PC, and their blends through the interpretation of torque rheometer data by Pastorini, Mirela Tury, Nunes, Regina Célia Reis

“…The blends of acrylonitrile-butadiene-styrene (ABS) and polycarbonate (PC) prepared on a Haake Torque Rheometer System 9000 were studied in order to…”
Get full text

Processability of PVDF/PMMA blends studied by torque rheometry by Freire, Estevão, Bianchi, Otavio, Monteiro, Elisabeth E.C., Reis Nunes, Regina Célia, Forte, Madalena C.

“…The processing characteristic of blends of poly(vinylidene fluoride) (PVDF) and poly(methyl methacrylate) (PMMA), in different compositions, were studied by…”
Get full text

Aging effect on the reflectivity measurements of polychloroprene matrices containing carbon black and carbonyl-iron powder by Pinho, Magali Silveira, Gregori, Maria Luisa, Nunes, Regina Celia Reis, Soares, Bluma Guenther

“…The effect of aging, arising from salt spray exposure, on the microwave reflectivity was studied for polychloroprene (CR) matrices, containing different kinds…”
Get full text