Preparation and mechanical properties of PP/PP-g-MA/Org-MMT nanocomposites with different MA content

Lopez‐Quintanilla, M. L.; Sánchez-Valdés, S.; Valle, L.F. Ramos de; Miranda, Ronald-Alexander

doi:10.1007/s00289-006-0555-x

Cited by 56 publications

(31 citation statements)

References 13 publications

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“…Estudos sobre nanocompósitos PP/argila organofílica são amplamente divulgados na literatura [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] . Entretanto, o número de publicações sobre filmes de nanocompósitos PP/argila organofílica para aplicação no setor de embalagens alimentícias é limitado [21][22][23] e a literatura tem mostrado que, ao contrário dos nanocompósitos preparados com matrizes polares como poliamidas, poliésteres e policarbonatos, os preparados com matrizes apolares poliolefínicas não tem apresentado melhoramentos significativos nas propriedades mecânicas e de barreira, o que tem sido atribuído a fraca adesão interfacial polímero/argila [20] .…”

Section: Introductionunclassified

Desenvolvimento de filmes de nananocompósitos polipropileno/argila organofílica para embalagens

Araújo¹,

Mesquita²,

Canedo³

et al. 2012

Polímeros

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Resumo: Neste trabalho foram preparados filmes de nanocompósitos de polipropileno (PP) contendo 1% em massa de bentonita modificada organicamente com tecnologia nacional (APO). Polipropileno enxertado com anidrido maleico (PP-g-AM) e copolímero de etileno e álcool vinílico (EVOH) foram utilizados como agentes compatibilizantes. Os nanocompósitos foram preparados através da intercalação no estado fundido em extrusora de filme plano. A influência do tipo e do teor de compatibilizante e do tipo de polipropileno, na morfologia, propriedades mecânicas e de barreira ao vapor d'água dos referidos filmes foi investigada. Os dados de difração de raio X evidenciam que apesar da morfologia dos nanocompósitos ter sido afetada pelo tipo de compatibilizante, esta praticamente não variou com o teor de compatibilizante utilizado. As morfologias e as propriedades de barreira ao vapor d'água dos nanocompósitos preparados com os polipropilenos PP H401 e PP H07D-00 são semelhantes. Entretanto, aqueles preparados com PP H07D-00 apresentaram melhores propriedades mecânicas, excetuando a resistência da termossoldagem à tração, do que os preparados com a matriz polimérica PP H401, e a transparência dos nanocompósitos preparados com PP H07D-00 foi idêntica à da matriz polimérica sem argila. Os resultados indicam que os filmes de nanocompósitos PP H07D-00 compatibilizados com 15% de PP-g-AM e contendo 1% de argila organofílica APO podem ser promissores para aplicação em embalagens. Palavras-chave: Filmes de nanocompósitos, argila organofílica, polipropileno, compatibilizante. Development of Polypropylene/Organoclay Nanocomposite Films for PackagingAbstract: This work deals with polypropylene (PP) nanocomposite films containing 1 wt. (%) bentonite clay organically modified with national technology (APO). Maleic anhydride grafted polypropylene (PP-g-MA) and ethylene vinyl alcohol (EVOH) were used as compatibilizing agents. Nanocomposites were prepared by melt intercalation in a flat film extruder. An investigation was made of the influence from the type and content of compatibilizer and type of polypropylene on the morphology, mechanical properties and barrier properties to water vapor of these films. X-ray diffraction data show that while the nanocomposite morphology was affected by the type of compatibilizer, it was relatively insensitive to its content. The morphologies and barrier properties to water vapor of the nanocomposites prepared with the two polypropylenes (PP H401 and PP H07D-00) were similar. However, except for the heat sealing properties, those prepared with PP H07D-00 showed better mechanical properties. The transparency of P715AMAPO nanocomposite was similar to that of the P715AM matrix. The results indicated that PP H07D-00 nanocomposite films compatibilized with 15% PP-g-AM and containing 1% APO organoclay may be promising for packaging applications. Keywords: Nanocomposite films, organoclay, polypropylene, compatibilizer. IntroduçãoCom o advento dos nanocompósitos poliméricos, as indústrias de embalagens vêm vislumbran...

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Section: Introductionunclassified

Desenvolvimento de filmes de nananocompósitos polipropileno/argila organofílica para embalagens

Araújo¹,

Mesquita²,

Canedo³

et al. 2012

Polímeros

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“…In the study of Wang et al (2011), the addition of PMMA/MCM-41 filler and PPg-MA in PP nanocomposites showed better tensile and impact properties. Quintanilla et al (2006) prepared PP/ MMT nanocomposites with different grafting efficiency of PP-g-MA. The result clearly indicated that PP/Cloisite 20A nanocomposites with higher efficiency PP-g-MA (2.0) exhibited better tensile and impact properties as compared to Cloisite 30B and neat clay.…”

Section: Introductionmentioning

confidence: 99%

Properties of PMMA/clay nanocomposites prepared using various compatibilizers

Kumar

Arun

Upadhyaya

et al. 2015

Int J Mech Mater Eng

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“…It is now well admitted that clay dispersion in PP and interfacial adhesion are better with a non-polar clay modifier such as the one used in Cloisite ® 20A (Southern Clay Product) than with pristine (i.e. native) clay or polar clay modifier such as that used in Cloisite ® 30B (Southern Clay Product) [12]. Similarly, as for carbon nanotubes [18], it is well known that a better clay dispersion and exfoliation is achieved when PP-g-MA compatibilizers are used.…”

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confidence: 99%

“…Similarly, as for carbon nanotubes [18], it is well known that a better clay dispersion and exfoliation is achieved when PP-g-MA compatibilizers are used. Some authors [11][12][13][14][15][16] investigated the compatibilizer influence on the clay exfoliation. A high maleic anhydride grafting level enables a better molecular insertion between the lamella, but a molecular weight decrease of the polypropylene may be expected due to molecular chain breakage [10,12,17].…”

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confidence: 99%

Development of novel melt-compounded starch-grafted polypropylene/polypropylene-grafted maleic anhydride/organoclay ternary hybrids

Tessier¹,

Lafranche²,

Krawczak³

2012

Express Polym. Lett.

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Preparation and mechanical properties of PP/PP-g-MA/Org-MMT nanocomposites with different MA content

Cited by 56 publications

References 13 publications

Desenvolvimento de filmes de nananocompósitos polipropileno/argila organofílica para embalagens

Desenvolvimento de filmes de nananocompósitos polipropileno/argila organofílica para embalagens

Properties of PMMA/clay nanocomposites prepared using various compatibilizers

Development of novel melt-compounded starch-grafted polypropylene/polypropylene-grafted maleic anhydride/organoclay ternary hybrids

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