Compatibility and viscoelastic properties of brominated isobutylene‐<i>co</i>‐<i>p</i>‐methylstyrene rubber/tackifier blends

Kumar, K. Dinesh; Gupta, Sanjiv Kumar; Tsou, Andy H.; Bhowmick, Anil K.

doi:10.1002/app.28649

Cited by 24 publications

(17 citation statements)

References 27 publications

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“…The experimentally obtained values of glass transition temperature (T g ) were compared with theoretically calculated ones by using the Fox equation 21 : The experimentally obtained values of glass transition temperature (T g ) were compared with theoretically calculated ones by using the Fox equation 21 :…”

Section: Differential Scanning Calorimetrymentioning

confidence: 99%

Thermodynamic Miscibility and Thermal and Mechanical Properties of Poly(ethylene‐co‐vinyl acetate‐co‐carbon monoxide)/Poly(vinyl chloride) Blends

et al. 2014

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This paper reports the miscibility and thermal and mechanical properties of solution cast binary blends of poly(ethylene-co-vinyl acetate-co-carbon monoxide) (EVACO) and poly(vinyl chloride) (PVC). The composition of these blends was varied from 10:90 to 90:10 of PVC/EVACO (w/w %). Fourier transform infrared spectroscopy revealed an extensive intermolecular attraction between the blend components, which accounts for their mutual solubility. The differential scanning calorimetry study revealed that the blend components are miscible with each other in all proportions as they exhibited a single glass transition temperature. Tensile strength, moduli, and thermal stabilities of these blends significantly improved with increasing proportion of

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Section: Differential Scanning Calorimetrymentioning

confidence: 99%

Thermodynamic Miscibility and Thermal and Mechanical Properties of Poly(ethylene‐co‐vinyl acetate‐co‐carbon monoxide)/Poly(vinyl chloride) Blends

et al. 2014

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“…For BIMS rubber, the R g value has been taken from the literature [9]. The monomer friction coefficient value has been calculated using equation (7).…”

Section: Frequency Sweep Studiesmentioning

confidence: 99%

“…2000 or less [2,4,5]. Tackifying resins impart good tack to elastomers by modifying the viscoelastic properties of the base elastomer in favor of bond formation and bond breaking resistance [5][6][7][8][9][10]. Or in other words, when tackifying resin is present, resistance to flow of the adhesive is reduced at lower frequencies; hence bond formation is facilitated during tack test.…”

Section: Introductionmentioning

confidence: 97%

“…Moreover, brominated isobutylene-co-p-methylstyrene (BIMS) rubber is a fairly new commercial rubber for a number of industrial applications, both in tire and non-tire areas. In the tire sector, it is used as a major component in tire tubes, sidewalls and inner liners and its tack properties are important for the success of their applications [7][8][9][10]. Therefore, it is worth investigating the effect of MMT nanoclay on the tack and green strength of BIMS rubber.…”

Section: Introductionmentioning

confidence: 98%

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Efficacy of Novel Nanoclay in Autohesive Tack of Brominated Isobutylene-co-p-Methylstyrene (BIMS) Rubber

Kumar

Tsou

Bhowmick

2010

Journal of Adhesion Science and Technology

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Autohesive tack is the ability of two unvulcanized rubber surfaces to resist separation after they are brought into contact for a short period under light pressure. In this work, the effect of unmodified montmorillonite (MMT) nanoclay on autohesive tack of brominated isobutylene-co-p-methylstyrene (BIMS) rubber was investigated by a 180 • peel test. The nanocomposites were characterized using X-ray diffraction (XRD) and atomic force microscopy (AFM). The autohesive tack strength dramatically increased with nanoclay concentration up to 8 phr, beyond which it reached apparently a plateau at 16 phr of nanoclay concentration. The tack strength of 16 phr of nanoclay loaded sample was nearly 158% higher than the tack strength of neat BIMS rubber. Various tack governing factors such as green strength, creep compliance, entanglement molecular weight, relaxation time, self-diffusion coefficient, and monomer friction coefficient were analyzed. The addition of nanoclay reduced the extent of molecular diffusion at the tack junction by reducing the chain mobility; however, the diffusion was still sufficient to achieve bond formation. Furthermore, the less diffused chains of the nanocomposite samples showed greater bond breaking resistance due to an increase in cohesive strength, onset of transition zone relaxation time, and monomer friction coefficient value of the BIMS matrix owing to the nanoclay reinforcement. On the other hand, the more diffused chains of the unfilled sample exhibited facile chain separation due to the poor cohesive strength of the BIMS matrix.

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“…The tackifier improves the mobility of the base polymer during the taping process by acting as a diluent and also improves the peel strength during the peeling process. Many researchers1–8 have investigated the mechanism of tack improvement through the addition of tackifiers.…”

Section: Introductionmentioning

confidence: 99%

Influence of diblock addition on tack in a polyacrylic triblock copolymer/tackifier system measured using a probe tack test

Yamamura

Fujii

Nakamura

et al. 2012

J of Applied Polymer Sci

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The influence of diblock copolymer addition on the tack properties of a polyacrylic triblock copolymer/tackifier system was investigated. For this purpose, poly(methyl methacrylate)‐block‐poly(n‐butyl acrylate)‐block‐poly(methyl methacrylate) triblock copolymer (MAM) and a 1/1 blend with a diblock copolymer consisting of the same components (MA) were used as base polymers, and a tackifier was added in amounts ranging from 10 to 30 wt %. The temperature dependence of tack was measured by a probe tack test. The tack of MAM/MA at room temperature was significantly higher than that of MAM, and the improvement of MAM/MA upon the addition of the tackifier was higher than that of MAM. The peeling process at the probe/adhesive interface during the probe tack test was observed using a high‐speed microscope. It was found that for MAM/MA, cavitation was caused in the entire adhesive layer, and peeling initiation was delayed by the absorption of strain energy due to deformation of the adhesive layer. In contrast, for MAM, peeling progressed linearly from the edge to the center of the probe. The greater flexibility of the soft block chain in the diblock copolymer resulted in improved interfacial adhesion. 1H pulse nuclear magnetic resonance analysis showed that the addition of the tackifier improved the cohesive strength of the adhesive. Adhesion strength is affected by two factors: the development of interfacial adhesion and cohesive strength. In the MAM/MA/tackifier system, the presence of MA and the tackifier improved the interfacial adhesion and cohesive strength, respectively. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

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Compatibility and viscoelastic properties of brominated isobutylene‐co‐p‐methylstyrene rubber/tackifier blends

Cited by 24 publications

References 27 publications

Thermodynamic Miscibility and Thermal and Mechanical Properties of Poly(ethylene‐co‐vinyl acetate‐co‐carbon monoxide)/Poly(vinyl chloride) Blends

Thermodynamic Miscibility and Thermal and Mechanical Properties of Poly(ethylene‐co‐vinyl acetate‐co‐carbon monoxide)/Poly(vinyl chloride) Blends

Efficacy of Novel Nanoclay in Autohesive Tack of Brominated Isobutylene-co-p-Methylstyrene (BIMS) Rubber

Influence of diblock addition on tack in a polyacrylic triblock copolymer/tackifier system measured using a probe tack test

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