Thermoplastic Materials

Ibeh, Christopher C.

doi:10.1201/b13623

Cited by 81 publications

(20 citation statements)

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“…Moreover, PP has a cost similar to PE, good temperature stability, and a good chemical resistance. 6 Nevertheless, foaming of common linear PP is not a simple task, owing to its rheological properties, especially owing to its weak melt strength. 7,8 It is difficult to achieve high expansion ratios (ERs) during foaming because the cell walls break and the foam is not able to retain the gas during the expansion process.…”

Section: Introductionmentioning

confidence: 99%

Understanding the foamability and mechanical properties of foamed polypropylene blends by using extensional rheology

Laguna‐Gutiérrez

Hooghten

Moldenaers

et al. 2015

J of Applied Polymer Sci

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In this article, the influence of the rheological behavior of miscible blends of a linear and a high melt strength, branched, polypropylene (HMS PP), on the cellular structure and mechanical properties of cellular materials, with a fixed relative density, has been investigated. The rheological properties of the PP melts were investigated in steady and oscillatory shear flow and in uniaxial elongation in order to calculate the strain hardening coefficient. While the linear PP does not exhibit strain hardening, the blends of the linear and the HMS PP show pronounced strain hardening, increasing with the concentration of HMS PP. Related to the cellular structure, in general, the amount of open cells, the cell size, and the width of the cell size distribution increase with the amount of linear PP in the blends. Also mechanical properties are conditioned by the extensional rheological behavior of PP blends. Cellular materials with the best mechanical properties are those that have been fabricated using large amounts of HMS PP. The results demonstrate the importance of the extensional rheological behavior of the base polymers for a better understanding and steering of the cellular structure and properties of the cellular materials. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42430.

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Section: Introductionmentioning

confidence: 99%

Understanding the foamability and mechanical properties of foamed polypropylene blends by using extensional rheology

Laguna‐Gutiérrez

Hooghten

Moldenaers

et al. 2015

J of Applied Polymer Sci

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“…Furthermore, the use of DMTA has revealed that the PVC/bamboo composites can retain these mechanical properties up to temperatures of ca. 70 ∘ C. Additionally, with PVC having low moisture absorptivity (0.07% to 0.4% in 24 h) and a high resistance to fungus/algae growth in composites [11], the outcomes of the present study suggest that these PVC/bamboo composites may be suited to both interior and exterior applications such as substituting for decking lumber products.…”

Section: International Journal Of Polymer Sciencementioning

confidence: 68%

“…With commercial thermoplastics such as polypropylene (PP) and polyethylene (PE) being widely used [6], bamboo-based composites have been formed with bamboo fibers mixed with these plastics [7][8][9][10]. However, for the third-most used plastic polyvinyl chloride (PVC) [11], only a few studies have focused on PVC composites formed with chemically modified bamboo particles [12][13][14]. PVC thermoplastic properties can be readily modified through addition of fillers and additives to enhance performance including flexibility, elasticity, and impact resistance [11].…”

Section: Introductionmentioning

confidence: 99%

“…However, for the third-most used plastic polyvinyl chloride (PVC) [11], only a few studies have focused on PVC composites formed with chemically modified bamboo particles [12][13][14]. PVC thermoplastic properties can be readily modified through addition of fillers and additives to enhance performance including flexibility, elasticity, and impact resistance [11]. Adding a natural material to PVC not only serves as composite filler but also reduces polymer use with a possibility of increasing properties such as stiffness, strength, and thermal stability [15].…”

Section: Introductionmentioning

confidence: 99%

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Flexural Properties of PVC/Bamboo Composites under Static and Dynamic-Thermal Conditions: Effects of Composition and Water Absorption

Bahari

Grigsby

Krause

2017

International Journal of Polymer Science

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Polyvinyl chloride (PVC)/bamboo composites have been prepared and assessed for their use in interior and exterior loadbearing applications. PVC composites were formed by compounding PVC with different bamboo particle sizes and loadings. The mechanical properties of these composites were determined at both ambient and elevated temperatures and after long-term water soaking. Analysis revealed that bamboo incorporation improved the PVC composite flexural modulus which was also observed with dynamic mechanical-thermal analysis on heating composites to ca. 70 ∘ C. Addition of 25% and 50% bamboo particles increases flexural modulus by 80% with dependency on whether fine (<75 m) or coarse (<1 mm) particles were used. On water soaking to saturation, composites had water weight uptakes of 10%, with reduced flexural properties obtained for all water-soaked composites. Nonetheless, the results of this study show that PVC/bamboo composites achieve the minimum flexural performance of ASTM D 6662, indicating potential for their use in exterior applications.

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“…Vale ainda destacar que alguns pesquisadores desenvolvem suas pesquisas de maneira individual, tais como: Ibeh (2004), Tijssen (2006), Schiavone (2007), García (2010), Home (2011), Zainol (2012, Kirkman (2013), Perlines (2014), Balodi (2014), Chien (2014), Tuan (2014.…”

Section: Gráfico 3 -Objetos De Pesquisamentioning

confidence: 99%

Orientação Empreendedora: Uma Análise Bibliométrica Em Periódicos Nacionais E Internacionais

Silveira¹,

Silveira-Martins²

2016

FACES Journal

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RESUMOA orientação empreendedora (OE) é fonte de análise das estratégias formuladas pelos tomadores de decisões em relação ao empreendedorismo. Neste contexto, objetiva-se nesta pesquisa contribuir com pesquisadores e gestores mapeando as pesquisas científicas sobre orientação empreendedora publicadas nos periódicos nacionais e internacionais. O procedimento metodológico alicerçou-se na técnica de pesquisa bibliométrica -exploratória e descritiva.

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Thermoplastic Materials

Cited by 81 publications

References 0 publications

Understanding the foamability and mechanical properties of foamed polypropylene blends by using extensional rheology

Understanding the foamability and mechanical properties of foamed polypropylene blends by using extensional rheology

Flexural Properties of PVC/Bamboo Composites under Static and Dynamic-Thermal Conditions: Effects of Composition and Water Absorption

Orientação Empreendedora: Uma Análise Bibliométrica Em Periódicos Nacionais E Internacionais

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