Polypropylene based carbon nanotubes composites: structure and properties

Tabuani, D.; Granelli, Walter; Camino, Giovanni; Claes, Michaël

doi:10.1515/epoly.2008.8.1.1178

Cited by 9 publications

(5 citation statements)

References 23 publications

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“…MWCNTs have often been reported to have an orienting effect on the polymer matrix 26, 27. In this study, however, no significant difference in orientation is found between iPP and the composites.…”

Section: Resultscontrasting

confidence: 64%

“…Therefore lamellar and crystalline orientation is analyzed to be nearly the same structure as that observed in MWCNTs have often been reported to have an orienting effect on the polymer matrix. 26,27 In this study, however, no significant difference in orientation is found between iPP and the composites. This lack of strong orientating effect is in agreement with published report.…”

Section: Resultscontrasting

confidence: 64%

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Structural, mechanical and thermal studies of double‐molded isotactic polypropylene nanocomposites with multiwalled carbon nanotubes

Mina

Haque

Bhuiyan

et al. 2010

J of Applied Polymer Sci

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Nanocomposites of isotactic polypropylene (iPP) and multiwalled carbon nanotubes (MWCNTs) with various contents of MWCNTs were fabricated by double molding techniques. X-ray diffraction measurements reveal a development of a-crystal with lamellar stacks having a long period of 150 Å in the neat iPP that increases to 165 Å in 2 wt % MWCNTs-loaded composites, indicating that MWCNTs enhance crystallization of iPP as a nucleating factor. Mechanical properties, such as tensile strength, flexural strength, Young's modulus, tangent modulus, and microhardness are found to increase with increasing MWCNTs content. Thermal analyses represent an increase of crystallization and melting temperatures and a decrease of thermal stability of the composites with increasing MWCNTs. Changes in structural, mechanical, and thermal properties of the composites due to the addition of MWCNTs are elaborately discussed.

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Section: Resultscontrasting

confidence: 64%

Section: Resultscontrasting

confidence: 64%

Structural, mechanical and thermal studies of double‐molded isotactic polypropylene nanocomposites with multiwalled carbon nanotubes

Mina

Haque

Bhuiyan

et al. 2010

J of Applied Polymer Sci

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“…Figure 3 shows an increase in degree of crystallinity with the addition of nanotubes of either type into iPP matrix, thus confirming that the nanotubes act as nucleation sites. The results are in agreement with some of the reports [14, 15] but in contradiction to a few others [16, 17], which showed either decrease or insignificant changes in the degree of crystallinity. Results of X‐ray diffraction (XRD) studies presented below are in conformity with the results of DSC measurements presented here.…”

Section: Resultssupporting

confidence: 90%

Effect of phenol functionalized carbon nanotube on mechanical, dynamic mechanical, and thermal properties of isotactic polypropylene nanocomposites

Thomas

Girei

Al-Juhani

et al. 2011

Polymer Engineering & Sci

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In this work, multiwall carbon nanotubes (MWCNT) were functionalized with phenol and characterized by using Fourier transform infrared spectroscopy (FTIR). Isotactic polypropylene (iPP)/MWCNT composites of both the unfunctionalized and functionalized MWCNT were prepared by melt blending in a miniextruder at different loadings of nanotubes (i.e., 0.1, 0.25, 1.0, and 5.0 wt%). The tensile properties of the composites were found to increase with increase in nanotube loading with a maximum in Young's modulus being achieved at 1.0 wt% loading of phenol functionalized MWCNT. The differential scanning calorimetry (DSC) studies reveal the nucleating effect of MWCNT on the crystallization of iPP. Percentage crystallinity was found to increase on phenol functionalization of MWCNT. Results of X‐ray diffraction studies of the composites are in conformity with that of DSC studies. Dynamic mechanical studies reveal that the functionalized MWCNT causes many fold increase in the storage modulus, and the effect is pronounced in the case of functionalized MWCNT. POLYM. ENG. SCI. 2012. © 2011 Society of Plastics Engineers

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“…At the same loading of raw MWCNTs (10 wt %), the composite in the presence of Similar observation was reported by Tabuani et al [291] According to them, the TGA results of the pure PP and MWCNT/PP nanocomposites are reported in Figure 6.14 and Table 6.6. In this study, the criteria for thermal stability were taken as the temperatures at which 10 % (T 10 ) and 50 % (T 50 ) weight losses occurred in the system.…”

Section: Thermal Propertiessupporting

confidence: 82%

Physical and chemical modifications of carbon nanotubes for the development of advanced polymer nanocomposites

Cheng¹

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There is a great need for advanced functional materials such as lightweight and high strength materials, super capacitive materials, highly conductive materials for many advanced engineering applications. Carbon nanotube (CNT)/polymer composites are a new class of materials with a wide range of properties for engineering applications. However, the major challenges for CNT/polymer composites are to attain a uniform dispersion of CNTs in polymer matrices and an efficient interfacial adhesion between CNTs and matrices.

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Polypropylene based carbon nanotubes composites: structure and properties

Cited by 9 publications

References 23 publications

Structural, mechanical and thermal studies of double‐molded isotactic polypropylene nanocomposites with multiwalled carbon nanotubes

Structural, mechanical and thermal studies of double‐molded isotactic polypropylene nanocomposites with multiwalled carbon nanotubes

Effect of phenol functionalized carbon nanotube on mechanical, dynamic mechanical, and thermal properties of isotactic polypropylene nanocomposites

Physical and chemical modifications of carbon nanotubes for the development of advanced polymer nanocomposites

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