On-Line PVT Properties of Amorphous Polymers

Abstract:

Pressure-Volume-Temperature (P-V-T) properties of two amorphous polymers (ABS and PS) were measured by an on-line testing measurement in the temperature ranges from 20 to 150 °C and pressures from 20 to 120 MPa. The on-line testing measurement is based on an injection molding machine (IMM), and it can be used to get P-V-T data of polymers directly with a special testing mold under normal processing conditions. The experimental P-V-T results of amorphous polymers under industrial processing conditions were presented. A new modified two-domain Spencer-Gilmore equation of state (EOS) was developed. The P-V-T properties were correlated by the modified Spencer-Gilmore EOS and a modified two-domain Tait EOS, showing a good agreement with measurements. The effects of sample forms were investigated. A sample with large length diameter ratio is the best one to be measured.

• Periodical: Advanced Materials Research (Volumes 87-88)
• Pages: 216-221
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.87-88.216
• Online since: December 2009
• Authors: Jian Wang, Peng Cheng Xie, Yu Mei Ding, Wei Min Yang
• Keywords: On-Line Testing, PVT Properties, Spencer-Gilmore EOS, Tait Equation of State, Testing Mold

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