Rheological analysis of polyvinyl butyral near the glass transition temperature

Juang, Yi Je; Lee, L. James; Koelling, Kurt W.

doi:10.1002/pen.10727

Cited by 24 publications

(16 citation statements)

References 62 publications

(15 reference statements)

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“…As PVB went through the glass transition, its G decreased drastically. Our results demonstrate that the method described previously could be used to characterize large changes in the viscoelastic parameters of a film deposited on the electrode surfaces of a quartz crystal, as Figure shows that the change in G agreed very well with that measured by the shear and elongational rheometers and the differential scanning calorimetry method …”

Section: Resultssupporting

confidence: 81%

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Probing the viscoelastic moduli of thin, soft films with a quartz crystal resonator

Tang

Fang

et al. 2016

J of Applied Polymer Sci

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Coating biomaterials with thin, soft films can alter properties, such as the biocompatibility of the materials, whereas it remains a great challenge to probe the properties of such films. In this article, we show a method that allows for the determination of the viscoelastic moduli of thin, soft films deposited on the surface of a quartz crystal through the measurement of resonance frequency shifts and the broadening of the acoustic resonance of the crystal as a resonator. The method is based on transcendental equations, which describe the mechanical response of the quartz resonator with the deposited films. It differs from the currently widely used ones, which use a thin film approximation numerically through the solution of transcendental equations to determine the viscoelasticity of the films. We estimated the glass-transition temperature of a thin poly(vinyl butyral) film by measuring the change in the viscoelastic moduli of the film with increasing temperature, and the results agree well with the temperature obtained from other techniques. The method was not constrained to the range of the elastic moduli of the film, except where the acoustic film resonance occurred, and thus, could be applied to the study of a wide variety of thin, soft layers under different conditions. V C 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44532.

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Section: Resultssupporting

confidence: 81%

“…As a test, we estimated the G values of a PVB film. PVB is a rubbery polymer widely used as an interlayer material for glass laminates in various applications . At small strains, PVB can be accurately modeled as a linear viscoelastic material; it undergoes a glass transition at about 65 °C …”

Section: Resultsmentioning

confidence: 99%

Probing the viscoelastic moduli of thin, soft films with a quartz crystal resonator

Tang

Fang

et al. 2016

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…In this article, we present the results of using this approach in studying the glass transition and glassy behavior in a polyvinylbutyral (PVB) film—a polymeric material that is being widely used in industry . From the measured frequency shift and the broadening of the resonant peak, the complex elastic moduli of the PVB films at different frequencies and film thickness were determined.…”

Section: Introductionmentioning

confidence: 99%

Quartz crystal resonator study of glass transitions in polyvinylbutyral (PVB) films

Tang

Fang

et al. 2017

J of Applied Polymer Sci

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Glass transitions in polyvinylbutyral (PVB) films deposited on a gold substrate have been studied using a quartz crystal resonator technique by measuring the resonant frequency shift and resonant peak broadening of the quartz crystal coated with a PVB film. Using the measured frequency shift and peak broadening of the resonance of the quartz crystal due to changes in the coated PVB film, the storage moduli of the film were derived. The results show rapid drops in the storage moduli of the PVB films at temperature closer to that of glass transition of bulk PVB. The transitions at different frequencies were assessed by simultaneously measuring the resonance of the quartz crystal at multiple harmonics. No significant change in the glass transition temperature at multiple harmonics was observed. The results of the storage moduli for PVB films of different thickness show that glass transition temperatures in the films decrease with the film thickness; the decrease become more noticeable as the film thickness is less than 500 nm where the characteristic of changing of storage moduli become distinctly different from that in thicker film and in bulk materials.

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“…Polymers are widely applied as interlayer material in glass composites. The material properties of used polymers may show to some extent a strong dependency on temperature and strain rate in the relevant range of considered exposure, which has been investigated in various publications (Juang et al 2001;Boyce et al 2000;Sobek et al 2000). The lamination process and the chemical composition of the interlayer govern the strength of the bond between the components of laminated safety glass.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of energy dissipation mechanisms in laminated safety glass for combined blast-temperature loading scenarios

Bermbach

Teich²,

Gebbeken

2016

Glass Struct Eng

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Protective glazing is an important field of research and development as most common injuries resulting from an explosion event in urban territory are caused by the occurring shock wave and accelerated fragments of failed glass structures. In this context a selection of laminated glass specimens differing in lamination technique, extent of tempering and interlayer material is tested in shock tube experiments at the facilities of the Bundeswehr Technical Center 52 (WTD 52) in Oberjettenberg. Unlike conservative testing the specimen is subjected to a combination of blast and temperature loading. The influence of the interlayer temperature on the laminate behavior is examined according to the elastic response of the composite. Furthermore the paper focusses on the residual load carrying capacity after fracture of the glass component. An assessment of the specimen performance is undertaken by a work balance approach, which leads to the determination of energy dissipation capacities in elastic and damage configurations. This method is suitable for a further breakdown of internal work and dissipation processes. Fracture patterns are evaluated to identify crack densities along paths of principal normal stress.The average strain and strain rates close to originated crack centers are determined. Finally the testing results are superimposed to estimate the impact of material and loading parameters on the overall performance.

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Rheological analysis of polyvinyl butyral near the glass transition temperature

Cited by 24 publications

References 62 publications

Probing the viscoelastic moduli of thin, soft films with a quartz crystal resonator

Probing the viscoelastic moduli of thin, soft films with a quartz crystal resonator

Quartz crystal resonator study of glass transitions in polyvinylbutyral (PVB) films

Experimental investigation of energy dissipation mechanisms in laminated safety glass for combined blast-temperature loading scenarios

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