Search Results - "Visconte, Leila Lea Yuan"

Behavior of zinc complex of bis(N‐phenylsulfonyldithiocarbimate) as accelerator in the vulcanization of nitrile rubber compounds by Arruda, Mariana Moura Sampaio, Cunha, Leandro Marcos Gomes, Visconte, Leila Lea Yuan, Rubinger, Mayura Marques Magalhães, Oliveira, Marcelo Ribeiro Leite, Pacheco, Elen Beatriz Acordi Vasques

“…ABSTRACT Chemical complexes containing N‐R‐sulfonyldithiocarbimates have been looked at as potential substitutes for N‐R‐dithiocarbamates as accelerators for…”
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Breakage of sulfur crosslinks in styrene-butadiene rubber by zinc(II) dithiocarbimate derivative by de Haro Moreno, Pedro Henrique, Visconte, Leila Lea Yuan, da Silva, Ana Lúcia Nazareth, do Couto Tavares, Eder, Pacheco, Elen Beatriz Acordi Vasques, Lopes, Thiago Castro

“…The chemical structure of rubbers makes reprocessing quite difficult. In this work, the chemical regeneration was used for styrene-butadiene rubber recycling…”
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The Use of Cashew Nut Shell Liquid (CNSL) in PP/HIPS Blends: Morphological, Thermal, Mechanical and Rheological Properties by Araújo, Mirna Nunes, Visconte, Leila Lea Yuan, Barreto, Daniel Weingart, Escócio, Viviane Alves, Silva, Ana Lucia Nazareth da, Sousa, Ana Maria Furtado de, Pacheco, Elen Beatriz Acordi Vasques

“…Polypropylene (PP) and high impact polystyrene (HIPS) are two polymers that are frequently found in disposable waste. Both of these polymers are restricted…”
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Study of time reaction on alkaline pretreatment applied to rice husk on biomass component extraction by Monte, Lara Soares, Escócio, Viviane Alves, de Sousa, Ana Maria Furtado, Furtado, Cristina Russi Guimarães, Leite, Marcia Christina Amorim Moreira, Visconte, Leila Lea Yuan, Pacheco, Elen Beatriz Acordi Vasquez

“…Rice husk (RH) residue was submitted to a sequence of experimental procedures, specifically to investigate the reaction time influence of NaOH pretreatment on…”
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Optimizing Properties of Natural Rubber Compounds Using Tetrabutylammonium bis(N‐phenylsulfonyldithiocarbimate)zincate(II) as Accelerator by de Arruda, Mariana Moura Sampaio, Visconte, Leila Léa Yuan, Linhares, Igor Antunes, Cunha, Leandro Marcos Gomes, da Silva, Ana Lúcia Nazareth

“…The rheometric properties of natural rubber compounds containing the compound tetrabutylammonium bis(N‐phenylsulfonyldithiocarbimate)zincate(II) as the…”
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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…”
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Rotational molding of LLDPE/coir fiber composites: Effect of fiber on mechanical, thermal, morphological and flammability properties by León, Lumirca Del Valle Espinoza, Escócio, Viviane Alves, Visconte, Leila Lea Yuan, Sousa, Ana Maria Furtado de, Silva, Ana Lúcia Nazareth da, Pacheco, Elen Beatriz Acordi Vasques

“…This study uses a rotomolding procedure to produce hollow cubes made of linear low-density polyethylene (LLDPE) and coconut fibers (CF). The purpose is to…”
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Rheological Behavior of Renewable Polyethylene (HDPE) Composites and Sponge Gourd (Luffa cylindrica) Residue by Cavalcante, André de Paula, Silva, Ana Lucia Nazareth da, Pacheco, Elen Beatriz Acordi Vasques, Escócio, Viviane Alves, Visconte, Leila Léa Yuan

“…The present study reports the results of rheological behavior of renewable composites, based on a matrix of high density polyethylene (HDPE), made from ethanol…”
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Tetraphenylphosphonium Allyldithiocarbimates: A Novel Safe Amine Class of Morita–Baylis–Hillman-Derived NBR Vulcanization Accelerators by Carvalho, Lucas Raposo, Venturelli, Lucas Gil, Lopes, Thiago Castro, Filho, Eclair Venturini, Fontenelle, Vinicius Gonçalves Souto, de Lima, Guilherme Ferreira, Visconte, Leila Léa Yuan, Tavares, Eder do Couto

“…Eliminating N-nitrosamines from rubber products, which are introduced by common vulcanization accelerators, is a significant challenge faced by the industry…”
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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…”
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Mixing process influence on thermal and rheological properties of NBR/SiO2 from rice husk ash by Sousa, Ana Maria Furtado de, Peres, Augusto Cesar de Carvalho, Furtado, Cristina Russi Guimarães, Visconte, Leila Lea Yuan

“…Abstract Silica was extracted from rice husk ash (RHA) by a sequence of reactions to produce nanosilica. Two laboratory routes, co-coagulation and spray…”
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Syntheses, spectroscopic characterization, crystal structure and natural rubber vulcanization activity of new disulfides derived from sulfonyldithiocarbimates by Alves, Leandro de Carvalho, Rubinger, Mayura Marques Magalhães, Tavares, Eder do Couto, Janczak, Jan, Pacheco, Elen Beatriz Acordi Vasques, Visconte, Leila Lea Yuan, Oliveira, Marcelo Ribeiro Leite

“…•Five novel sulfonyldithiocarbimate disulfides were synthesized and fully characterized.•The disulfides were active as vulcanization accelerators for natural…”
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Revisão dos tratamentos químicos da fibra natural para mistura com poliolefinas by Albinante, Sandra Regina, Pacheco, Élen Beatriz Acordi Vasques, Visconte, Leila Lea Yuan

“…The use of natural fibers as reinforcement in polymer composites has been a focus of interest. However, these composites exhibit lower mechanical properties…”
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Syntheses, structural and spectroscopic characterization of novel zinc(II)-bis(trithiocarbimato) complexes and bis( N-methylsulfonyldithiocarbimate)-sulfide by Tavares, Eder do Couto, Oliveira, Marcelo Ribeiro Leite, Janczak, Jan, Vieira, Camila Grossi, Alves, Leandro de Carvalho, Castro, Rodrigo Antunes, Vieira, Lígia Maria Mendonça, Lindemann, Renata Hernandez, Perpétuo, Genivaldo Júlio, Visconte, Leila Léa Yuan, Rubinger, Mayura Marques Magalhães

“…Four zinc(II)-bis(trithiocarbimato) complexes with the general formula A 2[Zn(RSO 2N CS 3) 2] [A = Ph 4P +: R = CH 3 ( 1), 4-CH 3C 6H 4 ( 2); A = Bu 4N +: R =…”
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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…”
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Addition of 2-hydroxyethyl methacrylate upon 4,5- epoxy-4-methyloctane catalyzed by ceric ammonium nitrate 1: identification of the reaction products by Ramos, Valéria Dutra, Derouet, Daniel, Visconte, Leila Lea Yuan

“…The alkoxylation of 4,5-epoxy-4-methyloctane, a model compound for epoxidized 1 ,4-polyisoprene, by 2-hydroxyethyl methacrylate (HEMA) in the presence of ceric…”
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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…”
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Tannin-Treated Water for use in the Emulsion Polymerization of SBR. Effect of Ageing on Mechanical Properties by de Oliveira, Isabele Mendes, Visconte, Leila Léa Yuan, Cruz, Vinícius, Dezotti, Márcia

“…The water used as the reaction medium in the emulsion polymerization of SBR was treated with a tannin-based derivative. The rubbers obtained were compounded…”
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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…”
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Syntheses, crystal structure and spectroscopic characterization of bis(dithiocarbimato)zinc(II) complexes: A new class of vulcanization accelerators by Cunha, Leandro Marcos Gomes, Rubinger, Mayura Marques Magalhães, Oliveira, Marcelo Ribeiro Leite, Tavares, Eder do Couto, Sabino, José Ricardo, Pacheco, Elen Beatriz Acordi Vasques, Visconte, Leila Léa Yuan

“…Four tetraphenylphosphanium bis(N-R-sulfonyldithiocarbimato)zincate(II) salts were prepared. Their structures were confirmed by crystallographic and…”
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