In situ polymerization approach to multiwalled carbon nanotubes-reinforced nylon 1010 composites: Mechanical properties and crystallization behavior

Zeng, Hailin; Gao, Chao; Wang, Yanping; Watts, Paul; Kong, Hao; Cui, Xiaowen; Yan, Deyue

doi:10.1016/j.polymer.2005.11.009

Cited by 217 publications

(103 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Moreover, applications of multiwalled carbon nanotubes (MWNTs) in structural materials such as polymer composites are more feasible with their mass production, which leads to price reduction. 5,6 Specifically, use of CNTs in polymer/carbon nanotube composites has attracted wide attention. 7,8 In this sense, it has been reported that the matrix properties can be effectively enhanced via the addition of CNTs in different polymer matrices.…”

Section: Introductionmentioning

confidence: 99%

Characterizing composite of multiwalled carbon nanotubes and POE‐g‐AA prepared via melting method

2007

J of Applied Polymer Sci

View full text Add to dashboard Cite

Multiwalled carbon nanotubes (MWNTs) with acyl chloride functional groups and a metallocene polyethylene-octene elastomer (POE) or an acrylic acid-grafted metallocene polyethylene-octene elastomer (POE-g-AA) were used to prepare hybrids (POE/MWNTs or POE-g-AA/MWNTs) using a melting method, with a view to identify a hybrid with improved thermal properties. Hybrids were characterized using Fourier transform infrared spectroscopy, 13 C solid-state nuclear magnetic resonance, X-ray diffraction, thermogravimetry analysis, and scanning electron microscopy. MWNTs were purified using acid treatment, and results showed that À ÀCOOH of MWNTs increased with acid treatment time and leveled off after 24-h treatment. Much better dispersion and homogeneity of MWNTs was obtained with POE-g-AA in place of POE as the matrix. As a result, tensile strength at break of POE-g-AA/MWNTs was significantly improved even at 5 wt % MWNT content. Moreover, temperature of thermal decomposition for POE-g-AA/MWNTs was about 40-508C higher than that for POE-g-AA, indicating higher thermal stability. This was because the carboxylic acid groups in POE-g-AA and the acyl chloride functional sites in MWNTs allow the formation of stronger chemical bonds.

show abstract

Section: Introductionmentioning

confidence: 99%

Characterizing composite of multiwalled carbon nanotubes and POE‐g‐AA prepared via melting method

2007

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…Traditional methods used for preparation of polymer-CNTs include melt blending, [1][2][3][4][5] in situ polymerization [6][7][8][9] and solution methods. [10][11][12] Chemical modification is regarded as an effective way of achieving well-dispersed CNTs in a polymer matrix; [13][14][15] however, it is believed that chemical modification can result in disruption of the tube structure and unavoidably leads to some loss in the super properties of the CNTs.…”

Section: Introductionmentioning

confidence: 99%

Water‐Based Polyurethane Filled with Multi‐Walled Carbon Nanotubes Prepared by a Colloidal‐Physics Method▪Author: This manuscript has been thoroughly edited. Please read the proofs carefully to ensure that no unintentional shift in meaning has been introduced.▪

Cai

Song

2007

Macro Chemistry & Physics

View full text Add to dashboard Cite

MWCNT/water‐based PU composites were synthesized by means of a colloidal‐physics method. The effect of MWCNT addition on the electrical and thermal properties of the composites and the effect of NaCl addition on film formation of the PU latexes were investigated. The electrical conductivity of the water‐based PU was improved by more than four orders of magnitude, but remained still four orders of magnitude lower than that of the MWCNTs. The percolation threshold was found to be at 0.5 wt.‐% MWCNT. The thermal conductivity of the composites was improved by ≈86% at 7 wt.‐% MWCNT. MWCNT/PU dispersions displayed stronger shear thinning than pure PU dispersions.magnified image

show abstract

“…In contrast, Zeng et al 26 studied the thermal stability of Nylon-10-10/MWCNT nanocomposites, for which they observed favorable results at concentrations above 20%. Aguirre-Figueroa 27 reported the enhancement of thermal stability for Figure 5 Scanning electron microscope micrographs for nanocomposites (4% wt/wt carbon nanotubes (CNTs)) after non-isothermal crystallization: (a) Nylon-6/CNT and (b) Nylon-6/modified CNTs (CNTM).…”

Section: Thermal Stabilitymentioning

confidence: 96%

Nanocomposites based on plasma-polymerized carbon nanotubes and Nylon-6

Crúz-Delgado

España‐Sánchez

Ávila‐Orta

et al. 2012

Polym J

View full text Add to dashboard Cite

Unique properties of carbon nanotubes (CNTs) and Nylon-6 were combined to obtain nanocomposites through in situ polymerization. For this purpose, plasma-polymerized CNTs (CNTM) and raw CNTs were added to in situ polymerization of e-caprolactam and 6-aminocapropic acid to obtain nanocomposites with 2 and 4% wt/wt of nanotubes. The morphology, phase transitions, thermal stability, dispersion and electrical conductivity were investigated for all samples. Scanning electron microscopy images showed a homogeneous dispersion of CNTs; however, dispersion is known to be better in nanocomposites with CNTM. Furthermore, the crystallization temperature increased up to 50 1C, the melting temperature increased by 20 1C and the degradation temperature increased up to 70 1C for a 10% weight loss. This behavior suggests a synergistic effect for these nanocomposites. The electrical conductivity of nanocomposites with 4% wt/wt reached a maximum of 10 À4 S cm À1 , suggesting a semiconductive material. Finally, the method used in this work is effective for the dispersion of CNTs, and it can be used to form nanocomposites with improved properties compared with the Nylon-6 homopolymer.

show abstract

In situ polymerization approach to multiwalled carbon nanotubes-reinforced nylon 1010 composites: Mechanical properties and crystallization behavior

Cited by 217 publications

References 61 publications

Characterizing composite of multiwalled carbon nanotubes and POE‐g‐AA prepared via melting method

Characterizing composite of multiwalled carbon nanotubes and POE‐g‐AA prepared via melting method

Water‐Based Polyurethane Filled with Multi‐Walled Carbon Nanotubes Prepared by a Colloidal‐Physics Method▪Author: This manuscript has been thoroughly edited. Please read the proofs carefully to ensure that no unintentional shift in meaning has been introduced.▪

Nanocomposites based on plasma-polymerized carbon nanotubes and Nylon-6

Contact Info

Product

Resources

About