Monitoring Phase Transition in Polymer Using a Quartz Crystal Resonator

نویسنده

  • Byoung Chul Kim
چکیده

A monitoring device for the phase transition of polymer material with temperature variation is developed utilizing a quartz crystal resonator, and its performance has been evaluated by implementing in the melting and crystallization of polyethylene. The observation is compared with the result of DSC thermo-analysis. The experimental outcome indicates that the resonant frequency variation shows not only the temperature of melting and crystallization, but the phase transition temperature of monoclinic to hexagonal phase.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Design and Fabrication of a Quartz Crystal Resonator Used in a Thickness-Monitor Unit (TECHNICAL NOTES).

This paper deals with the design and fabrication of a quartz-crystal resonator used in a thickness-monitor unit, measuring film thickness in a film-depositing system. A purpose-grown quartz crystal is cut to form the desired wafer. Two gold electrodes are deposited on both surfaces of the wafer to provide electrical contacts. The resonance frequency of the resonator, at room temperature, and th...

متن کامل

Determination of Viscoelastic Property in Polyethylene Crystallization Using a Quartz Crystal Resonator

A new generalized relationship between the viscoelastic properties of an overlayer placed on the electrode interface of a quartz crystal resonator and its resonant characteristic is developed from the mechanics of the quartz movement. The relationship is used to estimate the viscoelastic properties from the experimentally measured resonant characteristic. It is utilized in the estimation of vis...

متن کامل

PMMA Coated PMN-PT Single Crystal Resonator for Sensing Chemical Agents

A highly sensitive lead magnesium niobate-lead titanate (PMN-PT) single crystal resonator coated with a thin film of polymethylmethacrylate (PMMA) useful for detecting chemical agents such as acetone, methanol, and isopropyl alcohol (IPA) is presented. Swelling of the cured PMMA polymer layer in the presence of acetone, methanol, and isopropyl alcohol vapors is sensed as a mass change transduce...

متن کامل

Determination of the viscoelastic properties of polymer films using a compensated phase-locked oscillator circuit.

Using a combination of the quartz crystal microbalance and a corresponding physical model for the compound resonator, the viscoelastic properties of polymer films have been studied. By using a compensated phase-locked oscillator system, both resonant frequency and resistance (motional resistance of the Butterworth-Van Dyke equivalent circuit) can be measured simultaneously. The behavior of resi...

متن کامل

Quartz resonator assembling with TSV interposer using polymer sealing or metal bonding

This paper presents one wafer level packaging approach of quartz resonator based on through-silicon via (TSV) interposer with metal or polymer bonding sealing of frequency components. The proposed silicon-based package of quartz resonator adopts several three-dimensional (3D) core technologies, such as Cu TSVs, sealing bonding, and wafer thinning. It is different from conventional quartz resona...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2008