Adhesion of unvulcanized elastomers

Ansarifar, M. A.; Fuller, K. N. G.; Lake, G. J.

doi:10.1016/0143-7496(93)90021-z

Cited by 9 publications

(9 citation statements)

References 13 publications

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“…For pure SBR and BR rubbers, solubility parameters of 8.30 and 8.41 (cal/cc) 1/2 have been reported, respectively. 3,7 The small difference in the solubility parameters of the rubbers suggested that they were, at least, partially miscible, and therefore, adhesion by interdiffusion could have occurred. The presence of a large amount of reinforcing filler did not change the solubility parameters of the rubbers.…”

Section: Resultsmentioning

confidence: 97%

“…Weak interfacial adhesion between the two rubbers or the absence of an interphase in the blend could have caused the poor mechanical properties. 3,7 We concluded that increases in the aforementioned properties were due to the development of a strong interphase in the blends. The rubber properties, for example, tensile strength and stored energy density at break, increased as a function of crosslink density.…”

Section: Mechanical Properties Of the Br And Sbr Rubber Vulcanizates mentioning

confidence: 94%

“…The rotor speed was 45 rpm. The volume of the mixing chamber was 78 cm 3 , and it was 60% full during mixing. Haake Software version 1.9.1 was used to control the mixing conditions and to store data.…”

Section: Mixingmentioning

confidence: 99%

“…1,2 Dissimilar rubbers are immiscible or partially miscible and, when brought into contact in air, may not form strong interfacial adhesion between them. 3 To increase the durability, performance, and service life of rubber blended components, it is essential to optimize the interfacial adhesion strength between dissimilar rubbers such the ones mentioned previously. Moreover, this will help to minimize the risk of unexpected sudden joint failure in service, enhance materials selection, and joint design and improve environment and safety in service.…”

Section: Introductionmentioning

confidence: 99%

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Effects of different interphases on the mechanical properties of cured silanized silica‐filled styrene–butadiene/polybutadiene rubber blends for use in passenger car tire treads

Movahed

Ansarifar

Song

2009

J of Applied Polymer Sci

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Polybutadiene (BR) and styrene-butadiene (SBR) rubbers containing the same loading of precipitated silica nanofiller were prepared. The silica surfaces were pretreated with bis(3-triethoxysilylpropyl) tetrasulfide to chemically bond the silica to the rubber. The rubber compounds were mixed together for different times and at different temperatures to produce SBR/BR blends. The mass fraction and composition values of the interphases in the blends were subsequently determined with modulated-temperature differential scanning calorimetry. These properties changed substantially as a function of mixing temperature and mixing time. The hardness, tensile strength, elongation at break, stored energy density at break, tear strength, modulus, abrasion resistance, heat buildup, and loss tangent of the cured blends were measured over a wide range of test conditions. Elongation at break, stored energy density at break, tearing energy, and abrasion resistance benefited from increases in the mass fraction of the interphase. The remaining properties were influenced mainly by the filler loading and mixing time of the two rubber compounds.

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Section: Resultsmentioning

confidence: 97%

Section: Mechanical Properties Of the Br And Sbr Rubber Vulcanizates mentioning

confidence: 94%

Section: Mixingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of different interphases on the mechanical properties of cured silanized silica‐filled styrene–butadiene/polybutadiene rubber blends for use in passenger car tire treads

Movahed

Ansarifar

Song

2009

J of Applied Polymer Sci

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“…At room temperature, non-polar elastomers like SBR or natural rubber typically require contact times, t c B O(100 s), to self-adhere to the level of the bulk cohesive strength. 10,11 However, polar elastomers like NBR require drastically larger contact times, t c B O(100 h), despite having a similar glass transition temperature, T g , suggesting that these materials may have a more significant kinetic barrier for polymer interdiffusion and self-adhesion. 11 We recently shed some light on the dynamics of uncrosslinked and industrial-grade NBR, demonstrating that it can be mechanically rejuvenated and physically aged due to an inhomogeneous distribution of acrylonitrile and butadiene monomers along the polymer chains.…”

Section: Introductionmentioning

confidence: 99%