Nanocomposites based on chloroprene rubber: Effect of chemical nature and organic modification of nanoclay on the vulcanizate properties

Das, Amit; Costa, Francis Reny; Wagenknecht, Udo; Heinrich, Gert

doi:10.1016/j.eurpolymj.2008.08.025

Cited by 144 publications

(89 citation statements)

References 17 publications

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“…Ionic elastomers based on carboxylated nitrile rubber (XNBR) and magnesium aluminum layered double hydroxide (hydrotalcite) [5][6][7][8][9], acrylonitrile-butadiene rubber (NBR) [10], chloroprene rubber (CR) [11], silicone rubber (SR) [12,13], and polyurethane PU [14][15][16] and solution styrenebutadiene rubber (SSBR) [17]. However, in the literature, there is no information on the impact of high loadings of unmodified magnesium aluminum layered double hydroxide used as a filler and a curing agent on the crosslinking process in XNBR.…”

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confidence: 99%

Ionic elastomers based on carboxylated nitrile rubber (XNBR) and magnesium aluminum layered double hydroxide (hydrotalcite)

Laskowska

Zaborski²,

Boiteux

et al. 2014

Express Polym. Lett.

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Abstract. The presence of carboxyl groups in carboxylated nitrile butadiene rubber (XNBR) allows it to be cured with different agents. This study considers the effect of crosslinking of XNBR by magnesium aluminum layered double hydroxide (MgAl-LDH), known also as hydrotalcite (HT), on rheometric, mechano-dynamical and barrier properties. Results of XNBR/HT composites containing various HT loadings without conventional curatives are compared with XNBR compound crosslinked with commonly used zinc oxide. Hydrotalcite acts as an effective crosslinking agent for XNBR, as is particularly evident from rheometric and Fourier transform infrared spectroscopy (FTIR) studies. The existence of ionic crosslinks was also detected by dynamic mechanical analysis (DMA) of the resulting composites. DMA studies revealed that the XNBR/HT composites exhibited two transitions -one occurring at low temperature is associated to the T g of elastomer and the second at high temperature corresponds to the ionic transition temperature T i . Simultaneous application of HT as a curing agent and a filler may deliver not only environmentally friendly, zinc oxide-free rubber product but also ionic elastomer composite with excellent mechanical, barrier and transparent properties.

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confidence: 99%

Ionic elastomers based on carboxylated nitrile rubber (XNBR) and magnesium aluminum layered double hydroxide (hydrotalcite)

Laskowska

Zaborski²,

Boiteux

et al. 2014

Express Polym. Lett.

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“…It has several advantages like extraordinary oil and fuel resistance, toughness, good adhesion to other materials and high heat resistance up to 100°C [18]. The commercial application of CR was started in 1932 [19].…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have been reported on the incredible property improvement of CR nanocomposites in the presence of different types of nano filler [18][19][20][21][22][23]. Das et al [18] studied the effect of surfacemodified filler on CR-based nanocomposites with two different types of clay materials, namely montmorillonite (MMT) and layered double hydroxide (LDH). It was observed that organic modification improves the reinforcing efficiency of MMT in a greater extent than that of LDH [18].…”

Section: Introductionmentioning

confidence: 99%

“…Das et al [18] studied the effect of surfacemodified filler on CR-based nanocomposites with two different types of clay materials, namely montmorillonite (MMT) and layered double hydroxide (LDH). It was observed that organic modification improves the reinforcing efficiency of MMT in a greater extent than that of LDH [18]. Das et al [20] explained an approach of compatibilization between polychloroprene (CR) and ethylene propylene diene monomer rubber (EPDM) using nano clay as a compatibilizer as well as strong reinforcing filler.…”

Section: Introductionmentioning

confidence: 99%

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Silica-coated nano calcium carbonate reinforced polychloroprene rubber nanocomposites: influence of silica coating on cure, mechanical and thermal properties

et al. 2015

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The main objective of the present work is to compare the influence of silica-coated nano calcium carbonate (SNCC) with uncoated nano calcium carbonate (NCC) as filler on the property enhancement of polychloroprene rubber (CR) composites. The CR nanocomposites containing SNCC exhibit superior curing, mechanical and thermal properties in comparison to NCCfilled CR nanocomposites. The fantastic enrichment in the resulting properties of CR nanocomposites containing SNCC is mainly due to better rubber-filler interaction resulting from the reasonably excellent dispersion of SNCC within the CR matrix. The more uniform distribution of SNCC in comparison to NCC within the rubber matrix is also confirmed from morphological analysis. Thus, in this article, we report SNCC as a new type of efficient filler to reinforce the ultimate properties of CR nanocomposites for the first time.

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“…They also have the ability to disperse into individual layers in the matrix. A number of papers have been published on nanoclay composites based on elastomers including natural rubber [11,12], styrene butadiene rubber [13], chloroprene rubber [14] ethylene propylene diene rubbers [15,16] and nitrile rubber [17][18][19][20][21][22][23][24][25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Mechanical, thermal and transport properties of nitrile rubber (NBR)—nanoclay composites

Balachandran

Bhagawan

2012

J Polym Res

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The article describes the properties of nitrile rubber (NBR)-nanoclay composites prepared by a two-step method. viz. preparation of a 3:1 [by weight] masterbatch of NBR and nanoclay followed by compounding on a two roll mill and molding at 150°C and 20 MPa pressure. The tensile strength, elongation at break, modulus, storage modulus (E') and loss modulus (E") increased with the nanofiller content, reached the maximum value at 5 phr and decreased thereafter. The solvent uptake, diffusion, sorption and permeation constants decreased with nanoclay content with the minimum value at 5 phr nanoclay. The mechanism of solvent diffusion through the nanocomposites was found to be Fickian. Thermodynamic constants such as enthalpy and activation energy were also evaluated. The dependence of various properties on nanoclay content was correlated to the morphology of the nanocomposites. supported by morphological analysis.

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Nanocomposites based on chloroprene rubber: Effect of chemical nature and organic modification of nanoclay on the vulcanizate properties

Cited by 144 publications

References 17 publications

Ionic elastomers based on carboxylated nitrile rubber (XNBR) and magnesium aluminum layered double hydroxide (hydrotalcite)

Ionic elastomers based on carboxylated nitrile rubber (XNBR) and magnesium aluminum layered double hydroxide (hydrotalcite)

Silica-coated nano calcium carbonate reinforced polychloroprene rubber nanocomposites: influence of silica coating on cure, mechanical and thermal properties

Mechanical, thermal and transport properties of nitrile rubber (NBR)—nanoclay composites

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