Determination of thermal parameters of PVDF using a photoacoustic technique

• Published in: Measurement science & technology Vol. 12; no. 6; pp. 671 - 675
• Main Authors: Bonno, B, Laporte, J L, d'León, R Tascón
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.06.2001; Institute of Physics
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Instruments, apparatus, components and techniques common to several branches of physics and astronomy; Metrology; Metrology, measurements and laboratory procedures; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of bulk materials and thin films; Physics; Piezo-, elasto-, acoustooptical, and photoacoustic effects; Piezo-, elasto-, and acoustooptical effects; photoacoustic effects; Thermal instruments, apparatus and techniques; Units and standards; Thermal parameter; Photoelectric cells; Polyvinyls; Measuring methods; Thermal diffusivity; Calibration; Experimental study; Thermal conductivity measurement; Standards; Photoacoustic effect
• ISSN: 0957-0233; 1361-6501
• DOI: 10.1088/0957-0233/12/6/303

An application of the photoacoustic technique is developed for determining the thermal diffusivity and thermal conductivity of thermally thick samples by rear excitation. In the present work, thermal parameters measurements of polyvinylidene difluoride films over the temperature range from 100 to 300 K are reported. Results regarding thermal parameters at room temperature are in very good agreement with results from the literature. In order to obtain these results we have determined the thermal parameters of quartz. To date, there do not exist in the literature data on the thermal parameter variation of polyvinylidene difluoride over the temperature range. (Author)