Studies on Interfacial Characteristics of Highly Dispersible Silica Reinforced Epoxidized Natural Rubber Compounds

Manoharan, Partheban; Chatterjee, Tuhin; Pal, Sanjay Kumar; Das, Poushali; Naskar, Kinsuk

doi:10.1080/03602559.2017.1410833

Cited by 5 publications

(8 citation statements)

References 26 publications

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“…The corresponding derivative plots of the curing curves are reflected in the Figure 1(a) [Inset figure]. High values indicate the agglomeration of fillers in the composites 18 . As can be seen from Figure 1(a) [Inset figure], the MT filled rubber nanocomposites show a good dispersion over RD filled one.…”

Section: Resultsmentioning

confidence: 98%

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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Section: Resultsmentioning

confidence: 98%

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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“…10) [62]. Mixing is a key to all multi-component materials such as polymer bends [63,64], polymer composites [65,66], thermoplastic vulcanizates [67][68][69][70], and rubber composites [3,71]. Optimized silane concentration or silica content in rubber composite will not result in the desired performance properties if not mixed properly.…”

Section: Optimization Of Silica Filled Elastomer Compound and Silaniz...mentioning

confidence: 99%

Functional rubber composites based on silica-silane reinforcement for green tire application: the state of the art

Neethirajan

Parathodika

et al. 2022

Functional Composite Mater

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Silica is the rubber industry’s most essential and cost-effective reinforcing filler after carbon black. The silica reinforcement mechanism with a non-polar elastomer is complicated by the presence of polar functional groups on the silica surface. This polar nature of silica causes filler-to-filler interaction by forming hydrogen bonds. Therefore, sizeable non-dispersed silica clusters remain in a non-polar rubber matrix. To avoid these strong filler-filler interactions and improve rubber/silica compatibility, the silica surface needs to be modified. This can be done using a coupling agent which has functional groups capable of linking both the rubber and silica. It has been discovered that when silica/silane coupling agents are present, the critical properties like rolling resistance and wet grip in the magic triangle of tire tread balance out better than carbon black formulations, bringing the system closer to the green tire goal. In this review article, the efforts made by both the rubber formulation development and chemistry to fully exploit the potential of silica/silane reinforcement for automotive tires are retrospected. Highlights on how compounding ingredients, process technology, functionalized elastomer, novel silanes, and the variant of silicas can enhance the magic triangle and silica-silane reaction mechanism are provided. In addition, the kinetics of silanization and measurements for the degree of silanization is also highlighted. Future research directions in this area are also touched upon. Hopefully, this review can stimulate future silica/silane scientific and technology developments for both academic and industrial-oriented requirements.

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“…The samples having uniform dimensions and weight were immersed in toluene for 72 h, and the toluene was renewed every 24 h. After 72 h, the samples were removed from toluene and kept for drying at 100°C for 24 h and weighed. The BRC percentage was calculated according to the following equation 14

BRC (() %) = \frac{W dry - italicWn}{Wr},

where W dry is the weight of the sample after extraction.…”

Section: Characterizationmentioning

confidence: 99%

Synergistic effect of graphene with graphene oxide, nanoclay, and nanosilica in enhancing the mechanical and barrier properties of bromobutyl rubber/epoxidized natural rubber composites

Aswathy

Dash²,

Dey³

et al. 2021

J of Applied Polymer Sci

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The present work aims to investigate the effect of hybrid nanofillers in bromobutyl rubber/epoxidized natural rubber (ENR 50) composites for developing highly air‐impermeable nanocomposites. The nanocomposites with hybrid nanofillers were prepared by a simple melt mixing method, and the morphology of the developed nanocomposites was studied using X‐Ray diffraction, transmission electron microscopy, and atomic force microscopy. Improvement in the mechanical, barrier and dynamic properties can be observed for hybrid nanocomposites compared to the composites filled with individual graphene nanoplatelets (GNPs). The strong interfacial attraction between GNP monolayers enhance its aggregation in nanocomposites. While, in the current study the results are showing that the addition of graphene oxide, nanoclay, and nanosilica enhances the dispersion of GNP in the composites. The homogeneous dispersion of GNP nanofillers will develop a tortuous pathway in the composites, which are responsible for their air barrier properties. Bound rubber content and dynamic strain measurements (Payne effect) show a maximum value for binary nanocomposites.

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Studies on Interfacial Characteristics of Highly Dispersible Silica Reinforced Epoxidized Natural Rubber Compounds

Cited by 5 publications

References 26 publications

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

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

Functional rubber composites based on silica-silane reinforcement for green tire application: the state of the art

Synergistic effect of graphene with graphene oxide, nanoclay, and nanosilica in enhancing the mechanical and barrier properties of bromobutyl rubber/epoxidized natural rubber composites

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