Design & Manufacturing

  • 제14권3호
  • /
  • Pages.31-36
  • /
  • 2020
  • /
  • 2800-0323(pISSN)
  • /
  • 2733-452X(eISSN)
한국금형공학회 (Korean Society of Die & Mold Engineering)
권호 표지

캐필러리 레오미터를 이용한 고분자의 PvT 측정 방법

PvT measruement method of polymer using capillary rheometer

  • 김선경 (서울과학기술대학교 기계시스템디자인공학과) ;
  • 박재은 (서울과학기술대학교 기계시스템디자인공학과)
  • Kim, Sun-Kyoung (Department of Mechanical System Design Engineering, Seoul National University of Science and Engineering) ;
  • Park, Jae-Un (Department of Mechanical System Design Engineering, Seoul National University of Science and Engineering)
  • 투고 : 2020.09.14
  • 심사 : 2020.09.30
  • 발행 : 2020.09.30
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초록

In injection molding processes, the property of molten resin should be characterized accurately. Among several properties, the PvT state is the most important one, since it affects the shrinkage, warpage, molded weight, and the part density. Thus, the PvT data is crucial to the simulation of the injection molding process. This work shows how such a measurement can be performed for a semi-crystalline and amorphous polymers. The PvT measurement has been conducted using a capillary rheometer using a suitable accessory that blocks the capillary. The results have shown that the PvT data can be obtained using such a rheometer and then the PvT coefficients of the Tait equation can be reached.

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과제정보

이 연구는 서울과학기술대학교 교내학술연구비 지원으로 수행되었습니다.

참고문헌

  1. Stanek, M., Manas, D., Manas, M., & Suba, O., "Optimization of injection molding process", International journal of mathematics and computers in simulation, 5(5), pp. 413-421, 2011.
  2. Chang, R. Y., & Tsaur, B. D., "Experimental and theoretical studies of shrinkage, warpage, and sink marks of crystalline polymer injection molded parts", Polymer Engineering & Science, 35(15), pp. 1222-1230, 1995. https://doi.org/10.1002/pen.760351505
  3. Zoller, P., "A study of the pressure-volume-temperature relationships of four related amorphous polymer: polycarbonate, polyarylate, phenoxy, and polysulfone", Journal of Polymer Science (Polymer Physics Edition), 20(8), pp. 1453-1464, 1982. https://doi.org/10.1002/pol.1982.180200811
  4. Wunderlich, B., "In Thermal Characterization of Polymeric Materials(E. A. Turi, Ed)", Academic Press: New York, 1981.
  5. Jong-Chan Won, "PvT-Behavior for Analysis of Polymer Properties", Polymer Science and Technology, 12(5), pp. 764-775, 2001,
  6. Seong-Wook Kang, Seong-Hun Kim, "Studies on the Compressibility and Volumetric Expansivity of Amorphous Polymer ABS and SAN Using PVT Measurements", Textile science and engineering, 44(5), pp. 268-273, 2007.