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News Article | November 21, 2016
Site: www.newsmaker.com.au

According to Stratistics MRC, the Global Automotive Tire market is accounted for $213.9 billion in 2015 and is expected to reach $343.4 billion by 2022 growing at a CAGR of 6.9% from 2015 to 2022. Changing customer preferences for better mileage, rising demand for automobiles and demand for luxury and sports utility vehicles are projected to propel the market growth. Use of bio oils in the manufacturing process for eco friendly tires and nanotechnology is expected to create opportunities for the market.  Fluctuating prices of raw materials will impede the market growth. Access the complete report at: http://www.strategymrc.com/report/automotive-tire-market Radial tires will be the largest product segment of the automotive type tire market. Passenger cars will be the largest application segment followed by Light Commercial Vehicle (LCV) segment. Asia Pacific dominates the market for automotive tires. The automotive tire market is growing significantly in Europe and North America. Some of the key players in global Automotive Tire market are Cooper Tire & Rubber Company, Continental Group, Goodyear Tire and Rubber Company, Hankook Tire Co. Ltd, Michelin Group, Pirelli & C. S.P.A., Sumitomo Rubber Industries, Ltd., The Bridgestone Group, MRF Tyre, Hankook Tire, Hangzhou Zhongce Rubber Company, Apollo Tyres Ltd, Carlisle Companies, Inc, CEAT Ltd, DMACK Holdings Ltd., Fullrun Tyre, Hutchinson SNC, Nokian Tyres Group, Yokohama Rubber Co., Ltd, Toyo Tire & Rubber Co. Ltd. , Trelleborg AB, Nankang Rubber Tire and Dunlop. Request for a sample at: http://www.strategymrc.com/report/automotive-tire-market Types Covered: • Bias • Radial   Aspect Ratios Covered: • Less than 60 • 60 to 70 • Greater than 70      Vehicle Types Covered: • Passenger cars  o Light commercial vehicles o Heavy commercial vehicles o Two wheelers • Ultra High Performance/Touring Automotive Tires  Section Width Covered: • <200 MM  • 200-230 MM  • >230 MM Regions Covered: • North America o US o Canada o Mexico • Europe o Germany o France o Italy o UK  o Spain      o Rest of Europe  • Asia Pacific o Japan        o China        o India        o Australia        o New Zealand       o Rest of Asia Pacific       • Rest of the World o Middle East o Brazil o Argentina o South Africa o Egypt What our report offers: - Market share assessments for the regional and country level segments - Market share analysis of the top industry players - Strategic recommendations for the new entrants - Market forecasts for a minimum of 7 years of all the mentioned segments, sub segments and the regional markets - Market Trends (Drivers, Constraints, Opportunities, Threats, Challenges, Investment Opportunities, and recommendations) - Strategic recommendations in key business segments based on the market estimations - Competitive landscaping mapping the key common trends - Company profiling with detailed strategies, financials, and recent developments - Supply chain trends mapping the latest technological advancements

Unnikrishnan G.,Indian Institute of Technology Kanpur | Tiwari N.,Indian Institute of Technology Kanpur | Saraswat A.,CEAT Ltd | Goyal S.,CEAT Ltd | Kumar U.,CEAT Ltd
INTER-NOISE 2015 - 44th International Congress and Exposition on Noise Control Engineering | Year: 2015

In this work we propose a computational model to predict the noise produced in rolling tires by the phenomena of air pumping. The model uses pitch sequence, pitch length, pitch width, pitch angle, speed of vehicle, length of contact patch, and compression of tread as input parameters and then predicts the noise generated by treads in time and frequency domains. The model uses all these parameters to compute volume velocity associated with the phenomena of air-pumping. This volume velocity function is subsequently numerically processed to compute sound pressure level at a given distance in free-field conditions in both dB and dB(A) units. The predicted pressure results are compared with limited experimental data. Using such a prediction model, sensitivity studies are conducted to explore the influence of change in various tread parameters on the tread noise generated by a moving tire. © 2015 by ASME.

Nellippallil A.B.,University of Oklahoma | de P.S.,Indian Institute of Technology Bhubaneswar | Gupta A.,TCS Ltd. | Goyal S.,CEAT Ltd | Singh A.K.,Indian Institute of Technology Kanpur
Transactions of the Indian Institute of Metals | Year: 2016

A transient thermo-mechanically coupled Finite Element Method based model for single pass hot rolling of AA 5083 aluminum alloy is developed. The formulation is based on thermo-viscoplastic behavior expressed by the Perzyna constitutive equation and rolling under plane-strain conditions. The finite element model is integrated with a microstructural model where dynamic recrystallization through particle stimulated nucleation and static recrystallization is considered. The dynamic recrystallization model is an adoption of discontinuous dynamic recrystallization model while static recrystallization model is based on Avrami equation. The simulation results indicate that accurate estimates of constitutive behavior of the alloy, efficiency of conversion of plastic deformation to heat, and heat transfer at the roll/metal interface are critical for precise hot rolling model. © 2016 The Indian Institute of Metals - IIM

Dey P.,Indian Institute of Technology Kharagpur | Naskar K.,Indian Institute of Technology Kharagpur | Dash B.,CEAT Ltd | Nair S.,CEAT Ltd | And 2 more authors.
RSC Advances | Year: 2015

In this present work, the fundamental aspect of filler migration in a newly introduced thermoplastic vulcanizate based on ethylene octene copolymer and natural rubber, fabricated via semi-efficient sulphur vulcanization, has been investigated through thermodynamic calculations. Meticulous analysis has been conducted through different spectroscopic and microscopic techniques in order to identify the more favorable phase for filler dispersion. However, the consequent effect of phase selective filler dispersion has actually been realized from differential scanning calorimetry and X-ray diffraction, which, in turn, has successfully explained the observed mechanical and dynamic-mechanical properties. The upshifted G band absorbance frequencies obtained from Raman spectroscopy, on the other hand, have effectively explained the observed electrical properties. This work elucidates the fundamental understanding of polymer reinforcement as well as conductivity enhancement by incorporating carbon fillers into a newly introduced TPV system, which may be considered as a highly potential material for future automotive applications. This journal is © The Royal Society of Chemistry 2015.

Sankaran K.,Indian Institute of Technology Kharagpur | Manoharan P.,Indian Institute of Technology Kharagpur | Chattopadhyay S.,Indian Institute of Technology Kharagpur | Nair S.,CEAT Ltd | And 3 more authors.
RSC Advances | Year: 2016

The present work provides extensive insight into the effect of hybridization of organoclay with carbon black and their structure-property relationships on nanocomposites based on bromobutyl rubber (BIIR)/epoxidized natural rubber (ENR) blends. Morphology studies reveal well-dispersed nanoclay with the formation of hybrid nanostructures. Synergistic interaction between carbon black and nanoclay increases the tensile modulus and tear strength of the nanocomposites. The effect of layered clay platelets on the transport properties invokes a drastic reduction in the air permeability of up to 25% and in the water vapor transmission rate of up to 35%, and an increment in the electrical and thermal conductivity of the rubber nanocomposites. The peel strength with the rubberized fabric is found to be good for the nanocomposite with a lower elastic modulus. These unique attributes were found to stem from the formation of well dispersed hybrid nanostructures. Rubber formulations with such suitably tailored nanostructures will find applications in next generation rubber-based industrial products. © The Royal Society of Chemistry 2016.

Kumar S.,Indian Institute of Technology Kharagpur | Chattopadhyay S.,Indian Institute of Technology Kharagpur | Sreejesh A.,CEAT Ltd | Nair S.,CEAT Ltd | And 2 more authors.
Materials Research Express | Year: 2015

This work focuses on analyzing the barrier properties of novel Bromobutyl (BIIR)- Polyepichlorohydrin (CO) rubber nanocomposites and developing a unique model to ease the underst and ing of the water vapor transmission rate (WVTR) properties. Air permeability,WVTR and morphology of BIIR-CO nanocomposites were investigated and compared with the st and ard BIIR vulcanizate. From the morphological studies using AFM imaging technique and HR-TEM measurements, the developed BIIR-CO nanocomposites were considered to have a mostly intercalated structure. However, the dispersion of the nanoclay in the composites was very good. Air permeability of BIIR-CO nanocomposites decreased dramatically by 64% as compared to that of the st and ard BIIR vulcanizate. Considerable reduction in WVTR up to 25% was also achieved for BIIR-CO nanocomposites. Attempts were made to fit the experimental data of the relative gas permeability of nanocomposites with various models predicted earlier. It was observed that the nanoclay orientation ranged from perfect to r and om, which was decisive in improving the gas barrier properties. A basic model has been developed to predict the water vapor ingress by considering the polarity factor along with tortuosity factor which has been presented schematically. It reiterates the dependency of water vapor ingress on the polarity of the BIIR-CO rubber nanocomposites. © 2015 IOP Publishing Ltd.

Dey P.,Indian Institute of Technology Kharagpur | Naskar K.,Indian Institute of Technology Kharagpur | Dash B.,CEAT Ltd | Nair S.,CEAT Ltd | And 2 more authors.
RSC Advances | Year: 2014

Thermoplastic vulcanizate (TPV) is a specific group of elastomer alloy (EA), in which the rubber phase is selectively cross-linked by dynamic vulcanization and dispersed in the presence of a molten thermoplastic phase under intensive mixing. The development of binary blends, utilizing melt-blending technology of poly[styrene-b-(ethylene-co-butylene)-b-styrene] triblock copolymer (S-EB-S) and solution-polymerized styrene butadiene rubber (S-SBR) were investigated, as were the characteristic differences of these blends compared to other soft TPVs. Design of experiments (DOE) has been adopted to execute the optimum processing conditions in terms of mixing temperature, rotor speed and time of mixing by utilizing the Taguchi's L9 methodology, and the measure of confidence has been accomplished using standard statistical technique of the analysis of variance (ANOVA). A novel, thermally cross-linked (TCL) TPV has emerged as a by-product of DOE. Thereafter, meticulous analysis and characterization have been conducted to understand the newly developed TPV system. Furthermore, both semi-efficient vulcanizate (SEV) and efficient vulcanizate (EV) sulphur-based curing systems have been designed by adopting the optimized processing conditions to cure the rubber phase, and a comparative study has been organized among the TCL, SEV and EV systems. Dynamic mechanical analysis (DMA) has revealed reduced rolling resistance for EV-cured TPVs compared to SEV- and TCL-cured systems, while still maintaining good wet grip by comparing the lost tangent values. Theoretical calculation of viscoelastic properties by adopting the Kerner model predicts primarily co-continuous morphology for the TPV systems, which is in good accordance with the experimental and morphological observations. This journal is © the Partner Organisations 2014.

Deya P.,Indian Institute of Technology Kharagpur | Naskara K.,Indian Institute of Technology Kharagpur | Dashb B.,CEAT Ltd | Nair S.,CEAT Ltd | And 2 more authors.
Materials Today Communications | Year: 2014

The formation of finely dispersed micron-sized cross-linked rubber agglomerates in the thermoplastic matrix during dynamic vulcanization is now a well accepted theory to explicate the final properties of thermoplastic vulcanizates (TPVs). Based on our previous results, we have investigated further in the present work on the most influential and essential parameters which controls the ultimate properties of the TPVs. Three TPVs based on poly[styrene-b-(ethylene-co-butylene)-b-styrene] triblock copolymer (S-EB-S) and solution polymerized styrene butadiene rubber (S-SBR) have been prepared containing different proportions of rubber fraction. A semi-efficient (SEV) sulphur based curing system has been adopted to cross-link the rubber phase and advanced microscopic techniques viz. transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM) have been used for the microstructure analysis. Thereafter, dynamic experiments have been performed to correlate the morphological observations with viscoelastic properties. The experimental results and the morphological images confirm that the network structure formation during dynamic vulcanization and its integrity is the most influential parameter to cause the utmost properties of the TPVs. The finely dispersed cross-linked rubber particles obtained during dynamic vulcanization are actually the dis-integrated and agglomerated rubber nano-particles having average particle size between 80 and 85 nm. It has also been confirmed that the integrated rubber network structure has an inverse relationship with the proportion of rubber fraction present in the TPVs. Mechanical properties, melt rheology and dynamic viscoelastic measurements also support the network structure disruption and disintegration observed in the morphological images and thus, nullifies the supremacy of dispersed phase morphology theory behind the superior properties obtained from the TPVs. This work elucidates the necessity and importance of integrated network structure formation over the morphology evolution during dynamic vulcanization and leads to a new avenue to understand morphology-mechanical-rheological-viscoelastic property correlation in TPVs. © 2014 Elsevier Ltd.

Sankaran K.,Indian Institute of Technology Kharagpur | Nando G.B.,Indian Institute of Technology Kharagpur | Ramachandran P.,Indian Institute of Technology Kharagpur | Nair S.,CEAT Ltd | And 3 more authors.
RSC Advances | Year: 2015

The present work provides an extensive insight into the effect of hybrid nanofillers and their structure-property relationship in nanocomposites based on bromobutyl rubber (BIIR)/polyepichlorohydrin rubber (CO) blends. TEM photomicrographs reveal high degrees of dispersion of the nanoclay with the formation of hybrid nanostructures. The rheological behavior of the nanocomposites displays a shear thinning nature and significant reduction of die swell (up to 13% reduction) is observed with increase in the dosage of nanoclay. The addition of the nanoclay drastically reduces the air permeability up to 17%, increases electrical conductivity and thermal conductivity of the rubber nanocomposites. Adhesion of rubber to the fabric ply is found to be good in the nanocomposite having a lower dosage of nanoclay. These unique attributes were found to stem from the fundamental viscoelastic characteristics i.e., increase in the entanglement density due to the hybrid nanostructures. The development of hybrid nanostructures and their significant contribution to the improvements of properties are schematically explained. Rubber formulations with such suitably tailored nanostructures will find their applications for next generation rubber based industrial products. © The Royal Society of Chemistry 2015.

Kumar S.,Indian Institute of Technology Kharagpur | Nando G.B.,Indian Institute of Technology Kharagpur | Nair S.,Ceat Ltd | Unnikrishnan G.,Ceat Ltd | And 2 more authors.
Rubber Chemistry and Technology | Year: 2015

Rubber nanocomposites based on bromobutyl rubber (BIIR), polyepichlorohydrin rubber (CO), carbon black (CB), and organically modified montmorillonite clay (NC) were prepared via melt compounding technique. Effects of NC dosage on various properties of the developed BIIR-CO nanocomposites were studied. Morphological characteristics of the BIIRCO nanocomposite revealed a good level of clay dispersion. Scanning electron microscopy analyses of the tensile fractured surfaces of the nanocomposites revealed the existence of a good interaction between NC-CB. Hybrid microstructure development between NC and CB, clay exfoliation, and improved filler dispersion in the quaternary nanocomposite significantly contributed to the overall enhancement of properties. The addition of nanoclay increases the modulus up to 54%, tear strength up to 20%, and other physicomechanical properties of the rubber nanocomposite. However, higher nanoclay dose results in the agglomeration of clay particles predominantly. An increase in the volume fraction of nanoclay platelets depreciates the thermal degradation of the BIIR-CO nanocomposites. The tortuous path offered by NC is pivotal in the significant reduction in the water vapor transmission rate (up to 30% reduction). Contact angle measurements reveal the importance of nanoclay dispersion in subsiding the surface hydrophilic nature of the nanocomposite.

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