Morphology and Sound Velocity of Plasticized Polyvinylchloride Studied   Using Scanning Acoustic Microscope

Yamada, Gen; Koda, Shinobu; Matsuoka, Tatsuro; Nomura, Hiroyasu

doi:10.1143/jjap.40.3593

Cited by 6 publications

(2 citation statements)

References 10 publications

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“…Acoustic techniques have been widely used in various material characterizations such as the flaw inspection, evaluation of the elastic properties and observation of the morphology [11][12][13]. Those techniques can give elastic properties not only of the entire sample but also of the microscopic region near the interface between two substances without destruction of specimens.…”

Section: Introductionmentioning

confidence: 99%

Acoustic analysis of bound rubber formed in silica/SBR compounds

Maebayashi¹,

Endo²,

Matsuoka³

et al. 2006

Ultrasonics

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Section: Introductionmentioning

confidence: 99%

Acoustic analysis of bound rubber formed in silica/SBR compounds

Maebayashi¹,

Endo²,

Matsuoka³

et al. 2006

Ultrasonics

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“…Acoustic techniques have been widely used in various material characterizations, for example, the flaw inspection, evaluation of the elastic properties and observation of the morphology [25][26][27] . The acoustic technique can give elastic properties not only of the entire sample but also of the boundary layer around the particle with no destruction of the specimen.…”

Section: Introductionmentioning

confidence: 99%

Acoustic Analysis of Composite Soft Materials IV. Evaluation of Compressibility of Bound Rubber in Carbon Black Filled SBR

et al. 2005

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A carbon black (CB) filled styrene-butadiene rubber (SBR) compound was investigated by acoustic techniques, scanning acoustic microscopy and longitudinal wave velocitometry.The CB agglomerates of larger than 5 mm dispersed in the compound mixed by two-roll mill were observed as black spots in acoustic micrographs. On the other hand, the CB agglomerates in the compound mixed by oil-pressure kneader were not observed in the acoustic micrograph, since the particle size of the agglomerates was less than 5 mm.The density and the longitudinal wave velocity of the compound were measured as a function of the weight percentage of the CB. The density and the velocity increased linearly with the content of the CB. The mass ratio of the bound rubber to the CB in the unvulcanized sample was determined by using toluene extraction and thermo gravimetric analysis. The partial specific adiabatic compressibility of the CB was estimated as (Ϫ0.5Ϯ0.5)ϫ10 Ϫ10 Pa Ϫ1 on the basis of the three states model. The adiabatic compressibility of the bound rubber was (2.2Ϯ0.5)ϫ10 Ϫ10 Pa Ϫ1 , and it is half of that of the SBR matrix.

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Acoustic analysis of composite soft materials III: Compressibility of boundary layers around particles of mica and calcium carbonate

Maebayashi

Otsuka

Matsuoka

et al. 2005

J of Applied Polymer Sci

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ABSTRACT:The velocities of longitudinal, transverse, and leaky surface skimming compressional waves (LSSCW) of polyvinylchloride composite materials were measured as a function of the particle concentration. The mica and calcium carbonate (CC) particles were used as additives. The longitudinal and transverse velocities for the PVC/mica composite increased with the concentration of the mica. In the case of the PVC/CC composite, the transverse velocity increased with the concentration of the CC particle, but the longitudinal velocity was independent of the concentration. The LSSCW velocity for the polyvinylchloride matrix did not change in each composite. The partial specific volume and the partial specific adiabatic compressibility of each particle dispersed in polyvinylchloride were evaluated from sound velocity and density data. The compressibility of the boundary layer around the particles was estimated. The thickness of the boundary layer around the mica particle was estimated. For the PVC/CC composite, on the other hand, a softer phase than the PVC matrix was formed around the CC particle because the compressibility of the boundary layer was larger than that of the PVC matrix.

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Morphology and Sound Velocity of Plasticized Polyvinylchloride Studied Using Scanning Acoustic Microscope

Cited by 6 publications

References 10 publications

Acoustic analysis of bound rubber formed in silica/SBR compounds

Acoustic analysis of bound rubber formed in silica/SBR compounds

Acoustic Analysis of Composite Soft Materials IV. Evaluation of Compressibility of Bound Rubber in Carbon Black Filled SBR

Acoustic analysis of composite soft materials III: Compressibility of boundary layers around particles of mica and calcium carbonate

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