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RHEOLOGICAL PROPERTIES OF FIBER-FORMING PETROLEUM PITCHES
- 출판일1992.06
- 저자
- 서지사항
- 등록일 2016.11.02
- 조회수 251
The rheological properties of high-temperature, carbon fiber-forming petroleum pitches with investigated in the temperature range of 230 to 350 degrees Centigrade. The pitches were prepared from benzene pyrolysis resin. A rotary viscometer with a chromel-alumel thermocouple was used to measure the rheological properties of samples in a helium medium. Measurements were performed with a continuous change in shear rate. The dependences of viscostiy on shear stress were calculated. The shear stresses that correspond to breakdown in pitch structure were determined. 2 refs.
