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Preparação e caracterização de elastômeros reticulados dinamicamente de PA6-12/EVA
(2015-02-11)
Polymeric materials having good mechanical properties combined with flexibility are requirements to meet changing needs of the industry. These requirements can be met with the production of dynamically vulcanized/crosslinked ...
Avaliação do teor dos aditivos estabilizantes e das propriedades mecânicas em compostos elastoméricos para lateral de pneu de passeio submetidos ao envelhecimento natural e acelerado
(2015-02-11)
This study aims at analysing the ideal rate of two stabilizers in elastomeric compounds, used in tires that require a long-term performance, submitted to different kinds of aging. The resistance to the aging can be achieved ...
Influência da combinação sílica/negro de fumo e das etapas de processamento no desempenho de bandas de rodagem de pneu de carga
(2015-08-18)
One of the major challenges in the rubber industry today is related to the relationship between durability, safety and economy for tire applications. Important progress on rolling resistence reduction with good wet grip ...
Desenvolvimento e caracterização de compósitos de elastômero termoplástico de poliuretano (TPU) com argila
(2015-10-07)
In this study thermoplastic polyurethane (TPU) composites were obtained with different nanoclay contents (0, 1, 3 for all cases and 10 wt% in some cases). The nanoclay Cloisite 30B (C30B) was dispersed in the TPU matrix ...
Desenvolvimento e caracterização de composições elastoméricos de EPDM com redução no teor de óxido de zinco
(2016-06-27)
Zinc oxide nanoparticle (nano ZnO) is a kind of inorganic multifunctional filler, which has extensive uses in rubber additives. Notably, most of relevant researches about nano ZnO focused on using them as a substitute of ...
Síntese e Caracterização de elastômeros microcelulares de poliuretano
(2014-05-13)
In this work, three different microcellular polyurethanes elastomers (EMPU) based on 4,4-diphenylmethane diisocyanate (MDI) with different rigid phase contents were prepared (Formulations 1, 2 and 3 with 32, 35 and 42% of ...
Desenvolvimento de uma formulação elastomérica de EPDM para aplicação em temperaturas elevadas.
(2018-04-19)
The objective of this work was to obtain an EPDM elastomeric formulation for application at high temperatures. The influence of characteristics such as the ethene, propene, and diene content and Mooney viscosity, the use ...
Obtenção e caracterização de artefatos elastoméricos contendo aditivos provenientes de fontes renováveis
(2014-06-23)
The aim of this study was to obtain, characterize and determine the technical viability of
terpolymer of ethylene-propylene-diene (EPDM) compounds with the addition of vegetable
oil derived from soybean (MD600), vulcanizing ...
Influência do inibidor de pré-vulcanização nas propriedades de composições de borracha natural não vulcanizadas
(2019-12-16)
Vulcanization is a crosslinking process in which the chemical structure of the elastomer is changed by the interlinking of the long chains of the polymer, resulting in a three-dimensional network. The tire repairing industry ...