Effect of Processing Conditions on the Shrinkage and Warpage of Glass Fiber Reinforced PP Using Microcellular Injection Molding

Zhi Bian; Peng Cheng Xie; Yu Mei Ding; Wei Min Yang

doi:10.4028/www.scientific.net/KEM.501.294

Paper Titles

Effects of Particle Size on the Rubber Mixing Process and Mechanical Properties of Compound
p.274

Research on Optimization of the Process Parameters of Bio-Packaging Materials by Response Surface Method
p.279

Research on Spiral Engagement Cold Feeding Rubber Extruder
p.283

Mechanical, Morphological and Thermally Behaviors of Natural Rubber/Aluminum Powder Composites
p.289

Effect of Processing Conditions on the Shrinkage and Warpage of Glass Fiber Reinforced PP Using Microcellular Injection Molding
p.294

Experimental Research and Development on Electrical Screw Tire Vulcanizing Machine
p.300

Kinematic Simulation of the Tripod Universal Joint with or without Gap
p.306

Research of Low-Temperature Regeneration of Waste EPDM
p.311

The Study of Electroless Ni-P and Ni-P-PTFE Coating on Steel Tire Mold
p.316

HomeKey Engineering MaterialsKey Engineering Materials Vol. 501Effect of Processing Conditions on the Shrinkage...

Effect of Processing Conditions on the Shrinkage and Warpage of Glass Fiber Reinforced PP Using Microcellular Injection Molding

Abstract:

This study was aimed at understanding how the process conditions affected the dimensional stability of glass fiber reinforced PP by microcellular injection molding. A design of experiments (DOE) was performed and plane test specimens were produced for the shrinkage and warpage analysis. Injection molding trials were performed by systematically adjusting six process parameters (i.e., Injection speed, Injection pressure, Shot temperature, SCF level, Mold temperature, and Cooling time). By analyzing the statistically signiﬁcant main and two-factor interaction effects, the results showed that the supercritical ﬂuid (SCF) level and the injection speed affected the shrinkage and warpage of microcellular injection molded parts the most.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Key Engineering Materials (Volume 501)

Pages:

294-299

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.501.294

Citation:

Cite this paper

Online since:

January 2012

Authors:

Zhi Bian, Peng Cheng Xie, Yu Mei Ding, Wei Min Yang

Keywords:

Design of Experiment (DOE), Microcellular Injection Molding, Shrinkage, Supercritical Fuid, Warpage

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] S. George, K.T. Varughese, S. Thomas, Thermal and crystallisation behaviour of isotactic polypropylene/nitrile rubber blends, J. Polymer. 41(2000) 5485-5503.

DOI: 10.1016/s0032-3861(99)00719-3

Google Scholar

[2] J. R. Royer, Y. J. Gay, J. M. Desimone, S. A. Khan, High-pressure rheology of polystyrene melts plasticized with CO2: Experimental measurement and predictive scaling relationships, J. Polym Sci, Part B: Polym Phys. 38(2000) 3168-3180.

DOI: 10.1002/1099-0488(20001201)38:23<3168::aid-polb170>3.0.co;2-e

Google Scholar

[3] C. Kwag, C. W. Manke, E. Gulari, Effects of Dissolved Gas on Viscoelastic Scaling and Glass Transition Temperature of Polystyrene Melts, J. Ind. Eng. Chem Res. 40(2001) 3048-3052.

DOI: 10.1021/ie000680e

Google Scholar

[4] W.C. Bushko, V.K. Stokes, Solidification of thermoviscoelastic melts. Part II: Effects of processing conditions on shrinkage and residual stresses, J. Polym. Eng. Sci. 35(1995) 365-383.

DOI: 10.1002/pen.760350410

Google Scholar

[5] W.C. Bushko, V.K. Stokes, Solidification of thermoviscoelastic melts. Part 3: Effects of mold surface temperature differences on warpage and residual stresses, J. Polym. Eng. Sci. 36(1996) 322-335.

DOI: 10.1002/pen.10419

Google Scholar

[6] S.J. Liao, D.Y. Chang, H.J. Chen, L.S. Tsou, J.R. Ho, H.T. Yau, W.H. Hsieh, Optimal process conditions of shrinkage and warpage of thin-wall parts, J. Polym Eng Sci. 44 (2004) 917-928.

DOI: 10.1002/pen.20083

Google Scholar

[7] A. Kramschuster, R. Cavitt, D. Ermer, Z. Chen, L-S. Turng, Quantitative Study of Shrinkage and Warpage Behavior for Microcellular and Conventional Injection Molding, J. Polym. Eng. Sci. 45(2005) 1408-1418.

DOI: 10.1002/pen.20410

Google Scholar