DOI QR코드

DOI QR Code

Flow Analysis with Ratio of Expansional /Contractional Viscosity during Compression Molding of Continuous Fiber-Reinforced Polymeric Composites

연속섬유강화 플라스틱 복합재의 압축성형에 있어서 확대/축소 점도비를 고려한 유동해석

Kim, Hyeong-Cheol;Chae, Gyeong-Cheol;Jo, Seon-Hyeong;Kim, Lee-Gon
김형철;채경철;조선형;김이곤

  • Published : 2000.03.01

Abstract

To obtain an excellent product and decide on optimum molding conditions, it is important to establish the relationship between molding conditions and viscosity. The composites is treated as a pseudoplastic fluid, and the expansional/contractional viscosity of the fiber-reinforced polymeric composites is measured using the parallel plastometer, and the model for flow state has been simulated with the viscosity. The effects of expansional slip parameter $\alpha$e, and expansional/contractional viscosity ratio $\mu$${\gamma}$, on the mold filling parameters are also discussed

Keywords

Continuous Fiber-Reinforced Polymeric composites;Compression Molding;Measurement of Expansional /Contractional Viscosity;Flow Analysis with Ratio of Expansional /Contractional Viscosity

References

  1. Whiting, R., and Jacobsen, P. H., 1979, 'The Evaluation of Non-Newtonian Viscosity Using a Modified Parallel-Plate Plastometer,' J. of Material Science, Vol. 14, pp. 307-311 https://doi.org/10.1007/BF00589820
  2. 이희균, 조선형, 김이곤, 1997, '장섬유강화 고분자 복합판의 압축성형에 있어서 점성계수 측 정,' 한국복합재료학회지, 제10권, 제2호, pp. 79-86
  3. 조선형, 임영호, 김이곤, 1996, '섬유강화 고분자 복합재료의 압축성형에 있어서 이방성을 고 려한 유동해석,' 한국복합재료학회지, 제9권, 제1호, pp. 1-9
  4. 윤두현, 김형철, 조선형, 김이곤, 1997, '장섬유강화 고분자 복합재료의 압축성형에 있어서 금형변의 미끄럼 지배상수에 관한 연구,' 한국복합재료학회지, 제10권, 제4호, pp. 50-58
  5. Crowson, R. J., and Folkes, M. J., 1980, 'Rheology of Short Fiber-Reinforced Thermoplastics and its Application to Injection Molding,' Polymer Engineering and Science, Vol. 20, No. 14, pp. 934-940 https://doi.org/10.1002/pen.760201404
  6. Dienes, G. J., and Klemm, H. F, 1946, 'Theory and Application of the Parallel Plate Plastometer,' J. of Applied Physics, Vol. 17, pp. 458-471 https://doi.org/10.1063/1.1707739
  7. 北條英典, 金二坤, 玉川規一, 1984, '長纖維强化プラスチック複合板の壓出加工 (第l報, プラスチックと强化材の分離に關する理論的考察),' 第35回日本塑性加工聯合講演會論文集, No. 331, pp. 433-436
  8. 北條英典, 金二坤, 玉川規一, 1984, '長纖維强化プラスチック複合板の壓出加工 (第2報, プラスチックと强化材の分離に關する實驗),' 第35回日本塑性加工聯合講演會論文集, No. 332, pp. 437-440
  9. Maschmeyer, R. O., and Hill, C. T., 1977, 'Rheology of Concentrated Suspensions of Fibers in Tube Flow. II .An Exploratory Study,' Trans. of the Society of Rheology, 21-2, pp. 183-194 https://doi.org/10.1122/1.549453
  10. Lech Czarnecki and White, J. L., 1980, 'Shear Flow Rheological Properties, Fiber Damage, and Mastication Characteristic of Aramid-, Glass-, and Cellulose-Fiber-Reinforced Polystrene Melts,' J. of Applied Polymer Science, Vol. 25, pp. 1217-1244 https://doi.org/10.1002/app.1980.070250623