Optimal two-stage single-screw design for polymethyl methacrylate extrusion by taguchi technique

Hanchul Lee; Jae Wook Lee; In-Kwon Hong; Sangmook Lee

Journal of Industrial and Engineering Chemistry, Vol.20, No.3, 1119-1125, May, 2014

DOI10.1016/j.jiec.2013.06.050 Export Citation

Optimal two-stage single-screw design for polymethyl methacrylate extrusion by taguchi technique

Hanchul Lee, Jae Wook Lee , In-Kwon Hong¹, and Sangmook Lee^{1, †}

Applied Rheology Center, Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 121-742, Republic of Korea
¹Division of Chemical Engineering, Dankook University, 126, Jukjeon-dong, Suji-gu, Gyeonggi-do 448-701, Republic of Korea

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The optimal screw design for polymethyl methacrylate (PMMA) extrusion was studied. The Taguchi method was used to determine the optimal screw geometry and processing conditions for the extrusion of PMMA sheet and/or film. To get the high quality of sheet and/or film, perfect melting, adequate melt temperature, and enough metering pressure were necessary. The six factors relating screw geometry and processing condition were chosen with three levels for each factor. The orthogonal array was selected as the most suitable for fabricating the experimental design, L2736, with 6 columns and 27 variations. The smaller-the-better was used as an optimization criterion. The optimal values of these parameters were 8D of feeding zone length, 15 mm of feeding zone depth, 4D of melting zone length, 3 of compression ratio, 49 rpm of screw speed, and 165/180/200/250/260/2660/260 of barrel temperature. Under these conditions, the completeness of melting of solid bed, the stability of solid bed, the melt pressure at vent zone, and the melt temperature at the end of screw were 0, 0, 0 bar, and 279.5 ℃, respectively.

Keywords:Polymethyl methacrylate;Taguchi method;Optimal screw design;Two-stage single screw;DOE

[References]

Rauwendaal C, Polymer Extrusion, 4th ed., Hanser, 2002.
NEXTRUCAD, Polydynamics, Inc., http://www.polydynamics.com.
Pasco IK, Everest JH, Opt. Laser Technol., 10, 61 (1978)
O’Connell RM, Saito TT, Opt. Eng., 22, 393 (1983)
Fantone SD, SPIE, 406, 82 (1983)
Hertzberg RW, Deformation and Fracture Mechanics of Engineering Materials, 3rd ed., Wiley, New York, 1989.
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Shen J, Chen CC, Sauer JA, Polymer, 26, 511 (1985)
Wang TJ, Yoon CK, SPE ANTEC, 351 (1999)
Takatsuji H, Arai T, Vacuum, 59, 606 (2000)
Lee HC, Park OO, Vacuum, 72, 411 (2004)
Phadke MS, Quality Engineering Using robust Design, Prentice Hall, New Jersey, 1989p. 61.
Vlachopoulos J, Wagner JR, The SPE Guide on Extrusion Technology and Troubleshooting, Society of Plastics Engineers, Brookfield, CT, 2001.
Tadmor ZC, Gogos G, Principles of Polymer Processing, 2nd ed., Wiley Interscience, 2006p. 111.
Otani K, U.S. Patent 4,626,587 (1986).
Kobayashi A, Ishibashi J, U.S. Patent 5,804,111 (1998).
Cox APD, Fenner RT, Polym. Eng. Sci., 20, 562 (1980)
Zhu F, Wong ACY, Liu R, Liu T, Plast. Rubber Composites Processing Applications, 26, 343 (1997)

[Related Articles]

[1] Rauwendaal C, Polymer Extrusion, 4th ed., Hanser, 2002.

[2] NEXTRUCAD, Polydynamics, Inc., http://www.polydynamics.com.

[3] Pasco IK, Everest JH, Opt. Laser Technol., 10, 61 (1978)

[4] O’Connell RM, Saito TT, Opt. Eng., 22, 393 (1983)

[5] Fantone SD, SPIE, 406, 82 (1983)

[6] Hertzberg RW, Deformation and Fracture Mechanics of Engineering Materials, 3rd ed., Wiley, New York, 1989.

[7] Ishiyama C, Higo Y, J. Polym. Sci. B: Polym. Phys., 40(5), 460 (2002)

[8] Shen J, Chen CC, Sauer JA, Polymer, 26, 511 (1985)

[9] Wang TJ, Yoon CK, SPE ANTEC, 351 (1999)

[10] Takatsuji H, Arai T, Vacuum, 59, 606 (2000)

[11] Lee HC, Park OO, Vacuum, 72, 411 (2004)

[12] Phadke MS, Quality Engineering Using robust Design, Prentice Hall, New Jersey, 1989p. 61.

[13] Vlachopoulos J, Wagner JR, The SPE Guide on Extrusion Technology and Troubleshooting, Society of Plastics Engineers, Brookfield, CT, 2001.

[14] Tadmor ZC, Gogos G, Principles of Polymer Processing, 2nd ed., Wiley Interscience, 2006p. 111.

[15] Otani K, U.S. Patent 4,626,587 (1986).

[16] Kobayashi A, Ishibashi J, U.S. Patent 5,804,111 (1998).

[17] Cox APD, Fenner RT, Polym. Eng. Sci., 20, 562 (1980)

[18] Zhu F, Wong ACY, Liu R, Liu T, Plast. Rubber Composites Processing Applications, 26, 343 (1997)