Carbon Nanotubes Reinforced Nylon-6 Composite Prepared by Simple Melt-Compounding

Zhang, Wei De; Shen, Lu; Phang, In Yee; Liu, Tianxi

doi:10.1021/ma035594f

Cited by 453 publications

(267 citation statements)

References 43 publications

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“…In addition to zero toxicity, the presence of high number of OH bonds in PVA is also allowing high solubility of PVA in water. Despite these advantages, the reported values of tensile strength, r (15.7-74 MPa) for pristine PVA (Chen et al 2005;Liang et al 2009;Liu et al 2005) are remarkably lower than that of industrial polymer such as nylon 6 (Cho and Paul 2001;Zhang et al 2004). To improve the mechanical characteristic of PVA, reinforcement by filler is very important as the selected filler must not only enhance the tensile strength of PVA, but also have good interfacial interactions with PVA.…”

Section: Introductionmentioning

confidence: 99%

Application of graphene from exfoliation in kitchen mixer allows mechanical reinforcement of PVA/graphene film

et al. 2017

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Mechanical properties of polyvinyl alcohol (PVA) can be reinforced from the addition of graphene into its matrix. However, pristine graphene lacks solubility in water and thus makes dispersion a challenging task. Notably, functionalisation of graphene is required to accommodate graphene presence in the water. In this work, we have used a kitchen mixer to produce gum Arabicgraphene (G GA ) for the first time as filler for mechanical reinforcement of PVA. For the characterisation of exfoliated graphene, mean lateral size of G GA was measured from the imaging by transmission electron microscopy while the mean thickness of graphene was predicted from the obtained spectra by Raman spectroscopy. During the preparation of PVA/graphene film by solution casting, G GA was varied between 0, 0.05, 0.075, 0.10 and 0.15 wt% in concentration. We found that the presence of G GA in PVA improves the tensile stress and elastic modulus about 72-200 and 19-187% from the original values. The data from Halpin-Tsai meanwhile suggested that the mechanical reinforcement of PVA/graphene film is due to the random distribution network of G GA in PVA.

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Section: Introductionmentioning

confidence: 99%

Application of graphene from exfoliation in kitchen mixer allows mechanical reinforcement of PVA/graphene film

et al. 2017

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“…[25][26][27][28][29] In addition, for polymer nanocomposites, the functional groups on the surface of graphene are expected to improve interfacial bonding between the graphene and the polymer matrices similar to conventional functionalized carbon-based nanomaterials used in reinforced polymer nanocomposites. [30][31][32] These strong interactions between GO and the polymer matrices can be expected to significantly impart excellent reinforcement effects to the nanocomposite materials. In addition to exhibiting the aforementioned prominent properties, GO forms a unique sheet-like structure with a high aspect ratio.…”

Section: Introductionmentioning

confidence: 99%

Poly(vinyl alcohol)/graphene oxide nanocomposites prepared by a simple eco-process

Morimune

Nishino

Goto

2012

Polym J

141

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Graphene, a single layer of graphite, has recently attracted a large amount of attention because of its extremely high electronic and thermal properties, as many nanoscale materials are based on individual graphene. Graphene oxide (GO), which is the intermediate during the chemical processing of graphene, consists of graphene functionalized with oxygen-containing functional groups that imparts the desirable solution-processability to the neat graphene. Herein, poly(vinyl alcohol) (PVA), a hydrophilic polymer, was selected as the matrix, and PVA/GO nanocomposites were prepared by a simple and environment friendly process using water as the proceeding medium. In the PVA matrix, GO was exfoliated and nanodispersed. We found that the nanocomposites constructed by the incorporation of GO up to 1% by weight possess remarkable properties, such as significantly high mechanical and thermal properties. These excellent reinforcement effects were achieved not only by the rigid structure and high aspect ratio of the exfoliated GO but also by the strong interaction between PVA and GO. Furthermore, owing to the sheet-like structure of GO, the barrier properties of the nanocomposites were found to be dramatically increased.

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“…Moreover, polymer/CNT nanocomposites challenge traditional filled polymers (loadings of 20 wt% or more) in many of these areas by providing similar physical enhancements but with as little as about 1 wt% addition of dispersed nanotubes [13]. Previous CNT based polymeric nanocomposites reports include increased modulus, impact strength, heat distortion temperature, and barrier properties with decreased thermal expansivity [14][15][16]. In addition, these nanocomposites are finding potential applications such as electrostatically dissipative materials and aerospace materials [17].…”

mentioning

confidence: 99%

Non-isothermal crystallization kinetics of syndiotactic polystyrene polystyrene functionalized SWNTs nanocomposites

Xiong

Gao²,

Li³

2007

Express Polym. Lett.

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Carbon nanotubes (CNTs) are unique nanostructured materials with remarkable physical, mechanical and electronic properties [1][2][3][4]. These properties make them attractive for applications in many scientific and technological fields such as electronic structures [5], polymer composites [6], and biological systems [7]. Among these potential applications, the prospect of obtaining high-performance CNT based polymeric nanocomposites has attracted the efforts of researchers in both academia and industry [8]. The combination of organic polymer components with CNT fillers in a single material has extraordinary significance for the development of advanced materials with remarkable mechanical, electrical, thermal and multifunctional properties [9][10][11][12]. Moreover, polymer/CNT nanocomposites challenge traditional filled polymers (loadings of 20 wt% or more) in many of these areas by providing similar physical enhancements but with as little as about 1 wt% addition of dispersed nanotubes [13]. Previous CNT based polymeric nanocomposites reports include increased modulus, impact strength, heat distortion temperature, and barrier properties with decreased thermal expansivity [14][15][16]. In addition, these nanocomposites are finding potential applications such as electrostatically dissipative materials and aerospace materials [17]. Currently, several processing methods, including melt mixing, solution process and in-situ polymerization [18][19][20] Abstract. Non-isothermal crystallization kinetics were characterized by using differential scanning calorimetry (DSC) analysis on neat semicrystalline syndiotactic polystyrene (sPS) and its nanocomposites with polystyrene (PS) functionalized full-length single walled carbon nanotubes (SWNT-PS), which was prepared by copper (I) catalyzed click coupling of alkyne-decorated SWNTs with well-defined, azide-terminated PS. The crystallization behavior of neat sPS polymer was compared to its SWNT based nanocomposites. The results suggested that the non-isothermal crystallization behavior of sPS/SWNT-PS nanocomposites depended significantly on the SWNT-PS contents and cooling rate. The incorporation of SWNT-PS caused a change in the mechanism of nucleation and the crystal growth of sPS crystallites, this effect being more significant at lower SWNT-PS content. Combined Avrami and Ozawa analysis was found to be effective in describing the non-isothermal crystallization of the neat sPS and its nanocomposites. The activation energy of sPS determined from nonisothermal data decreased with the presence of small quantity of SWNT-PS in the nanocomposites and then increased with increasing SWNT-PS contents.

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Carbon Nanotubes Reinforced Nylon-6 Composite Prepared by Simple Melt-Compounding

Cited by 453 publications

References 43 publications

Application of graphene from exfoliation in kitchen mixer allows mechanical reinforcement of PVA/graphene film

Application of graphene from exfoliation in kitchen mixer allows mechanical reinforcement of PVA/graphene film

Poly(vinyl alcohol)/graphene oxide nanocomposites prepared by a simple eco-process

Non-isothermal crystallization kinetics of syndiotactic polystyrene polystyrene functionalized SWNTs nanocomposites

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