Effect of CNT surface functionalisation on the mechanical properties of multi-walled carbon nanotube/epoxy-composites

Nadler, Michael; Werner, Jan; Mahrholz, Thorsten; Riedel, Ulrich; Hufenbach, W.

doi:10.1016/j.compositesa.2009.04.021

Cited by 84 publications

(47 citation statements)

References 19 publications

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“…The most common procedure used to overcome this problem is to try to get an effective CNT surface grafting, addressing both issues, dispersion and interface stress transfer [3][4][5]. Numerous grafting methods have been employed to introduce a variety of molecules onto CNTs [6][7][8]. One of them is based on aminofunctionalization of CNTs.…”

Section: Introductionmentioning

confidence: 99%

Improving the flexural and thermomechanical properties of amino-functionalized carbon nanotube/epoxy composites by using a pre-curing treatment

Prolongo

Gude

Ureña

2011

Composites Science and Technology

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Please cite this article as: Prolongo, S.G., Gude, M.R., Ureña, A., Improving the flexural and thermomechanical properties of amino-functionalized carbon nanotube/epoxy composites by using a pre-curing treatment, Composites Science and Technology (2011), doi: 10.1016/j.compscitech.2011 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. ABSTRACT:A prior thermal (pre-curing) treatment of mixtures of epoxy monomer and amino-functionalized carbon nanotubes (CNTs) was used to promote a chemical reaction between the matrix and the reinforcement, favouring the formation of a strong interface. Samples of epoxy resin and different weight percentages of amino-functionalized multi-walled CNTs were prepared with and without the pre-curing treatment (150ºC, 1 hour). The degree of dispersion of the nanofiller was better when this pre-curing treatment was used. This allowed a higher CNT content while keeping a high sample homogeneity. Without the pre-curing step, the addition of CNTs increases both the flexural strength and strain to failure by 45%. Moreover, with the pre-curing step, the nanocomposite with 0.25 wt % CNTs presents an increase of flexural strength by 58% and strain to failure by 68% regard to neat epoxy

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Section: Introductionmentioning

confidence: 99%

Improving the flexural and thermomechanical properties of amino-functionalized carbon nanotube/epoxy composites by using a pre-curing treatment

Prolongo

Gude

Ureña

2011

Composites Science and Technology

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“…GmbH, Berlin) werden Zentrifugalkräfte ausgenutzt, die zu einer beschleunigten Bewegung der Partikel oder Agglomerate führen. Ein ähnliches Prinzip wird in Scheibenzentrifugen verwendet [63]. Die analytische Zentrifuge detektiert die inhärente physikalische Stabilität der Proben.…”

Section: Sedimentationsanalyseunclassified

Characterization of the State of Dispersion of Carbon Nanotubes in Polymer Nanocomposites

Buschhorn¹,

Wichmann²,

Sumfleth³

et al. 2011

Chemie Ingenieur Technik

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Es wird ein praxisnaher Überblick über die Möglichkeiten und Grenzen der Charakterisierung der Dispersionsgüte vonCarbon Nanotubes (CNTs, deutsch: Kohlenstoffnanoröhren) Characterization of the State of Dispersion of Carbon Nanotubes in Polymer NanocompositesA practical overview of possibilities and limits to characterize the state of dispersion of carbon nanotubes (CNT) in polymer based nanocomposites is given. The most important and widely available methods are discussed with practical employment in mind. One focus is the quantitative characterization of the state of dispersion in solid samples using microscopy techniques such as optical microscopy or transmission electron microscopy. For dispersions of CNTs in aqueous media, solvents or monomers a sedimentation analysis is presented. This way dispersability and dispersion state of CNTs can be assessed. Indirect methods such as electrical conductivity measurements and rheological tests, dynamic differential scanning calorimetry and mechanical test are discussed.

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“…Moreover, it was revealed that the functionalization of CNTs by suitable physical adsorption of polymers can considerably improve the mechanical properties and load transfer issues in nanocomposites made of CNTs [50][51][52][53].…”

Section: Introductionmentioning

confidence: 99%

Structural and elastic properties and stability characteristics of oxygenated carbon nanotubes under physical adsorption of polymers

Ansari

Ajori

Rouhi

2015

Applied Surface Science

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Effect of CNT surface functionalisation on the mechanical properties of multi-walled carbon nanotube/epoxy-composites

Cited by 84 publications

References 19 publications

Improving the flexural and thermomechanical properties of amino-functionalized carbon nanotube/epoxy composites by using a pre-curing treatment

Improving the flexural and thermomechanical properties of amino-functionalized carbon nanotube/epoxy composites by using a pre-curing treatment

Characterization of the State of Dispersion of Carbon Nanotubes in Polymer Nanocomposites

Structural and elastic properties and stability characteristics of oxygenated carbon nanotubes under physical adsorption of polymers

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