Self-healing properties of carbon nanotube filled natural rubber/bromobutyl rubber blends

Le, H. H.; Hait, Sakrit; Das, Amit; Wießner, Sven; Stoeckelhuber, K. W.; Böehme, F.; Reuter, Uta; Naskar, Kinsuk; Heinrich, Gert; Radusch, Hans‐Joachim

doi:10.3144/expresspolymlett.2017.24

Cited by 58 publications

(37 citation statements)

References 33 publications

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“…The development of an intrinsically self-healable material based on 1-butyl imidazole (BIM)-modified bromobutyl rubber (BIIR)/natural rubber (NR) blends filled with carbon nanotubes (CNTs) was also reported [18]. The use of BIM as physical crosslinker for the BIIR phase allowed to obtain the non-covalent bondings in the blend composites, which were responsible for their self-healing properties.…”

Section: Introductionmentioning

confidence: 99%

Ionic liquids as coagents for sulfur vulcanization of butadiene–styrene elastomer filled with carbon black

Maciejewska

Zaborski

2018

Polym. Bull.

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The aim of this work was to study the activity of several alkylimidazolium salts of bis(trifluoromethylsulfonyl)imides to obtain a very fast vulcanization of the butadiene-styrene (SBR) elastomer. Ionic liquids (ILs) such as alkylimidazolium salts with ethyl-, propyl-, butyl-, hexyl-, decyl-, dodecyl-, and hexadecyl chains in the cation together with nanosized zinc oxide are used to develop elastomer composites with very short vulcanization time and a reduced amount of vulcanization activator. In this article, we discuss the effect of the ILs with respect to the length of alkyl chain in their cation on the vulcanization kinetics of rubber compounds. The influence of ILs on the crosslink density as well as the mechanical properties of the vulcanizates and their resistance to thermo-oxidative and UV aging were also studied. ILs resulted in a shortened optimal vulcanization time and reduced the onset vulcanization temperature compared to zinc oxide containing rubber compound. This is very important from a technological point of view. A considerable increase in the crosslink density of vulcanizates was also observed.

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Section: Introductionmentioning

confidence: 99%

Ionic liquids as coagents for sulfur vulcanization of butadiene–styrene elastomer filled with carbon black

Maciejewska

Zaborski

2018

Polym. Bull.

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“…Commercial bromobutyl rubber (BIIR) is a copolymer of isobutylene with a minor amount of bromine modified isoprene. 1 Due to the presence of bulky side groups, the BIIR is mainly known for its exceptional air barrier properties, along with good oxidative and thermal stability. Due to its excellent gas impermeability, it is employed primarily in the inner liner of tyres and sealing applications.…”

Section: Introductionmentioning

confidence: 99%

“…2 However, the formation of weak bonds by the ionic clusters present in BIIR and the lack of covalent network structure cause inferior physical properties, particularly, poor tensile properties and low stiffness. 1,2 Thus, for the past years, researchers have been involved in studies of part replacement of BIIR in blend with suitable rubber so as to develop a master batch with effective permeability and anti-degradation properties in conjunction with acceptable physical properties. In this context, few studies have been reported in the literature, this includes Kumar et al study on BIIR -Epichlorohydrin rubber (ECH) blends for gas barrier applications and reported an increase in air impermeability up to 20%, while the physical properties of the blend decreased.…”

Section: Introductionmentioning

confidence: 99%

Assessment of various nano‐clays in bromobutyl rubber hydrogenated acrylonitrile butadiene rubber blend for improved gas barrier applications

Aswathy

Bhattacharya

Dash³

et al. 2020

J of Applied Polymer Sci

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For the past few decades, butyl rubber (IIR) and its derivatives have been used primarily in air barrier applications. Recently other synthetic rubbers like hydrogenated acrylonitrile butadiene rubber (HNBR) has attracted attention for its air barrier properties. A blend of brominated butyl rubber (BIIR) and HNBR can be a potential and novel material with improved technical features as well as excellent processing behavior. In this article, laponite (RD) and bentonite (MT) nano-clays have been used to prepare BIIR-HNBR blend based nanocomposites. A detailed investigation of nanocomposite morphology has been done using the transmission electron microscope results. The improvement in terms of mechanical and gas barrier properties of BIIR-HNBR nano-clay composites over BIIR-carbon black composites have been explored in detail. The air impermeability of BIIR-HNBR blends shows a 20% improvement compared to the reference composite. The results clearly demonstrate the usefulness and effectiveness of the material in gas barrier applications.

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“…On the other hand, each of allotropic forms of carbon, such as graphene and carbon nanotubes(CNTs), possess unique physical and chemical characteristics, which have been extensively studied for various purposes in elastomer compounding . In several ways, each of these allotropic forms of carbon affects the final properties of nanocomposites, presumably due to differences in their architectural characteristics .…”

Section: Introductionmentioning

confidence: 99%

Temperature‐triggered three‐dimensional network formation in graphene–polybutadiene nanocomposite

Pal

Chatterjee

Naskar

2019

J of Applied Polymer Sci

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Since the invention of vulcanization in the early 19th century, the study on potential factors affecting the crosslink network formation and the corresponding changes in the initial physiochemical attributes of elastomer has been the subject of prime interest. Where several investigations highlight the mechanism and kinetics of the crosslink network formation, the exclusive effect of compounding ingredients, such as filler, plasticizer, and anti‐oxidant, is still being pursued. In this direction, we report preparation and characterization of cis‐1,4‐polybutadiene (PB)–graphene (G) nanocomposite and highlight a phenomenon in which graphene induces the spontaneous chemical reactions in the cis‐1,4‐polybutadiene elastomer matrix triggered at 170 °C temperature. PB–G nanocomposites were prepared by a fairly simple solution mixing and precipitation process, and such nanocomposites were analytically investigated using several characterization techniques. The differential scanning calorimetry analysis shows the evidence of reactions via exothermic peak transition at ~170 °C temperature. Dynamic mechanical thermal analysis and stress–strain analysis suggest improvement in the initial physiochemical attributes of elastomer. The equilibrium swelling study quantifies the network structure that formed during the spontaneous reactions induced by graphene. Nuclear magnetic resonance (1H‐NMR) and Raman spectroscopic analysis suggest clear deviation in the pristine chemical structure of cis‐1,4‐PB elastomer and graphene, respectively. We believe that the spontaneous chemical reactions led to the formation of a three‐dimensional network within the PB elastomer. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48209.

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Self-healing properties of carbon nanotube filled natural rubber/bromobutyl rubber blends

Cited by 58 publications

References 33 publications

Ionic liquids as coagents for sulfur vulcanization of butadiene–styrene elastomer filled with carbon black

Ionic liquids as coagents for sulfur vulcanization of butadiene–styrene elastomer filled with carbon black

Assessment of various nano‐clays in bromobutyl rubber hydrogenated acrylonitrile butadiene rubber blend for improved gas barrier applications

Temperature‐triggered three‐dimensional network formation in graphene–polybutadiene nanocomposite

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