CARACTERIZAÇÃO DE BLENDAS ELASTOMÉRICAS COM A ADIÇÃO DE NEGRO DE FUMO EM CONJUNTO COM NANOTUBOS DE CARBONO
ELASTOMERIC CHARACTERIZATION WITH ADDITION OF CARBON BLACK IN CONJUNCTION WITH CARBON NANOTUBES
Werner, Marcos; Seferin, Marcus
http://dx.doi.org/10.4322/2176-1523.1042
Tecnol. Metal. Mater. Min., vol.13, n4, p.326-330, 2016
Resumo
Este trabalho tem por objetivo elaborar um comparativo entre materiais elastoméricos com a adição de negro de fumo (NF) em conjunto com nanotubos de carbono do tipo multicamadas(MWCTN), visando elaborar um parâmetro base para dados de processabilidade destes reforços em suas respectivas matrizes e também avaliar a influência da utilização dos MWCNTs. Como matriz base foi utilizada a borracha natural (NR) e também um composto da mistura de borracha de Etileno-Propileno-Dieno (EPDM) com a borracha natural. Após a caracterização dos dados do processo foi elaborado um comparativo dentre as propriedades físico-mecânicas baseados nas normas ASTMs com o intuito de tornar apta a escolha do material com base nas características apresentadas. Dentre as mesmas foi aprofundado o foco no desgaste (perda de massa) das blendas elastoméricas, que é atualmente um dos principais problemas para o material.
Palavras-chave
Borracha, Nanotubo de carbono, Negro de fumo.
Abstract
This paper aims to elaborate a comparison between elastomeric materials with the addition of carbon black (CB) together with carbon nanotubes multi-walled (MWCTN), to draw up a basic parameter for processability data of these reinforcements in their respective matrix and also assess the influence the use of MWCNTs. Natural rubber (NR) and also a compound of the rubber mixture of ethylene propylene diene (EPDM) with the natural rubber as base matrix was used. After characterizing the process data, a comparison created from the physical and mechanical properties based on ASTMs standards in order to become able to choice of material based on the characteristics shown. Was deepened focus on wear (weight loss) of elastomeric blends, which is currently a major issue for the material.
Keywords
Rubber, Carbon nanotubes, Carbon black.
Referências
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2 Baranwal K, Stephens H. Elastomer technology: special topics. Baltimore: United Book Press; 2003.
3 Pal K, Rajasekar R, Kang DJ, Zhang ZX, Pal SK, Kim JK, et al. Effect of fillers and nitrile blended PVC on natural rubber/high styrene rubber with nanosilica blends: morphology and wear. Materials & Design. 2010;31(1):25-34. http://dx.doi.org/10.1016/j.matdes.2009.07.023.
4 Tabsan N, Wirasate S, Suchiva K. Abrasion behavior of layered silicate reinforced natural rubber. Wear. 2010;269(5-6):394-404. http://dx.doi.org/10.1016/j.wear.2010.04.018.
5 Ramôa SDAS. Preparação e caracterização de compósitos de poliuretano termoplástico com negro de fumo condutor e nanotubos de carbono [dissertação de mestrado]. Florianópolis: Programa de Pós-graduação em Ciência e Engenharia de Materiais, Universidade Federal de Santa Catarina; 2011.
6 Mattoso LHC, Morais PC. Nanotecnologia introdução, preparação e caracterização de nanomateriais e exemplos de aplicação. São Paulo: Artilier, 2006. p. 17-19.
7 International Organization for Standardization – ISO. ISO 289-1:2005: rubber, unvulcanized -- determinations using a shearing-disc viscometer -- Part 1: determination of mooney viscosity. Genebra: ISO; 2005.
8 American Society for Testing and Materials – ASTM. ASTM D297-15: standard test methods for rubber products -- chemical analysis. West Conshohocken: ASTM; 2015.
9 American Society for Testing and Materials – ASTM. ASTM D2240-05: standard test method for rubber property -- durometer hardness. West Conshohocken: ASTM; 2010.
10 American Society for Testing and Materials – ASTM. ASTM D412-06ª: standard test methods for vulcanized rubber and thermoplastic elastomers -- tension. West Conshohocken: ASTM; 2013.
11 American Society for Testing and Materials – ASTM. ASTM D624-00: standard test method for tear strength of conventional vulcanized rubber and thermoplastic elastomers. West Conshohocken: ASTM; 2012.
12 German Institute for Standardization – DIN. DIN ISO 4649 (2006-11): rubber, vulcanized or thermoplastic -- determination of abrasion resistance using a rotating cylindrical drum device (ISO 4649:2002). Berlin: DIN; 2006.
2 Baranwal K, Stephens H. Elastomer technology: special topics. Baltimore: United Book Press; 2003.
3 Pal K, Rajasekar R, Kang DJ, Zhang ZX, Pal SK, Kim JK, et al. Effect of fillers and nitrile blended PVC on natural rubber/high styrene rubber with nanosilica blends: morphology and wear. Materials & Design. 2010;31(1):25-34. http://dx.doi.org/10.1016/j.matdes.2009.07.023.
4 Tabsan N, Wirasate S, Suchiva K. Abrasion behavior of layered silicate reinforced natural rubber. Wear. 2010;269(5-6):394-404. http://dx.doi.org/10.1016/j.wear.2010.04.018.
5 Ramôa SDAS. Preparação e caracterização de compósitos de poliuretano termoplástico com negro de fumo condutor e nanotubos de carbono [dissertação de mestrado]. Florianópolis: Programa de Pós-graduação em Ciência e Engenharia de Materiais, Universidade Federal de Santa Catarina; 2011.
6 Mattoso LHC, Morais PC. Nanotecnologia introdução, preparação e caracterização de nanomateriais e exemplos de aplicação. São Paulo: Artilier, 2006. p. 17-19.
7 International Organization for Standardization – ISO. ISO 289-1:2005: rubber, unvulcanized -- determinations using a shearing-disc viscometer -- Part 1: determination of mooney viscosity. Genebra: ISO; 2005.
8 American Society for Testing and Materials – ASTM. ASTM D297-15: standard test methods for rubber products -- chemical analysis. West Conshohocken: ASTM; 2015.
9 American Society for Testing and Materials – ASTM. ASTM D2240-05: standard test method for rubber property -- durometer hardness. West Conshohocken: ASTM; 2010.
10 American Society for Testing and Materials – ASTM. ASTM D412-06ª: standard test methods for vulcanized rubber and thermoplastic elastomers -- tension. West Conshohocken: ASTM; 2013.
11 American Society for Testing and Materials – ASTM. ASTM D624-00: standard test method for tear strength of conventional vulcanized rubber and thermoplastic elastomers. West Conshohocken: ASTM; 2012.
12 German Institute for Standardization – DIN. DIN ISO 4649 (2006-11): rubber, vulcanized or thermoplastic -- determination of abrasion resistance using a rotating cylindrical drum device (ISO 4649:2002). Berlin: DIN; 2006.
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