2009
DOI: 10.1590/s0104-14282009000300007
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Comportamento sob fluência em elastômeros termoplásticos vulcanizados baseados em poliamida 6 e borracha nitrílica

Abstract: turas elevadas e resistência química. Borracha nitrílica, por sua vez, é um elastômero para propósitos especiais, devido à sua ótima resistência a óleo e a abrasão [4][5][6][7] . Supõe-se que a combinação de tais componentes pode gerar um material com boa resistência a óleo quente e boas propriedades mecânicas, particularmente a altas temperaturas [8,9] . Apesar do potencial, pouco se tem publicado em relação a misturas de PA6 e NBR, provavelmente devido à alta temperatura necessária para o processamento e mol… Show more

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Cited by 7 publications
(6 citation statements)
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“…Pure EVA showed higher deformation and recovery than PA6,12. The low creep recovery of pure PA6,12 reflects the low amorphous component in the semicrystalline polymers . However, the high deformation and recovery of EVA can be attributed to the temperature of the creep experiment (50 °C, close to the melting temperature of EVA, as shown in the DSC results).…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Pure EVA showed higher deformation and recovery than PA6,12. The low creep recovery of pure PA6,12 reflects the low amorphous component in the semicrystalline polymers . However, the high deformation and recovery of EVA can be attributed to the temperature of the creep experiment (50 °C, close to the melting temperature of EVA, as shown in the DSC results).…”
Section: Resultsmentioning
confidence: 99%
“…In many polymer blends, the promotion of crosslinking by specific agents provides an alternative means of stabilizing the phase morphology . Other stabilization techniques involve nanoparticles and specific polymer–polymer interactions .…”
Section: Introductionmentioning
confidence: 99%
“…Chowdhury et al [19,20] , descrevem TPVs de PA/ NBR a partir de um terpolímero de poliamida (6, 6-6, 6-10) e uma NBR carboxilada reticulada com enxofre e aceleradores, obtendo um material com boa resistência em óleo e morfologia com aspecto homogêneo, principalmente para a composição 40/60 de PA/NBR. Gomes et al [21] estudaram o comportamento sob fluência de TPVs a base de PA6/NBR (28% acrilonitrila), composição 50/50, com diferentes aditivos, constatando que estes tem grande efeito sobre a fluência destes materiais.…”
Section: Methodsunclassified
“…The TPV morphology is attained even if the thermoplastic polymer is present as the minority component [3] , and the material shows elastic properties at room temperature approaching those of thermoset elastomers, and even can be melt reprocessed. These materials were first described by Gessler [2] , and commercially introduced in the 70's by Fisher [4] , and studied by several authors having a wide variety of elastomer-plastic systems afterwards [5][6][7][8][9][10][11] . In particular, the most significant work in TPV technology was developed by Coran yielding "fully" crosslinked compounds [6] .…”
Section: Introductionmentioning
confidence: 99%