183
Views
6
CrossRef citations to date
0
Altmetric
Original Articles

Crystallization Behavior and Mechanical Properties of Microinjection Molded High Density Polyethylene Parts

, , , &
Pages 28-41 | Received 25 Sep 2016, Accepted 01 Mar 2018, Published online: 05 Dec 2018

References

  • Michaeli, W.; Rogalla, A.; Ziegmann, C. Processing technologies for the injection moulding of hybrid microstructures. Macromol. Mater. Eng. 2000, 279, 42–45.
  • Griffiths, C. A.; Dimov, S. S.; Brousseau, E. B.; Hoyle, R. T. The effects of tool surface quality in micro-injection moulding. J. Mater. Process. Technol. 2007, 189, 418–427.
  • Despa, M. S.; Kelly, K. W.; Collier, J. R. Injection molding of polymeric LIGA HARMs. Microsyst. Technol. 1999, 6, 60–66.
  • Zhao, J.; Mayes, R. H.; Chen, G.; Xie, H.; Chan, P. S. Effects of process parameters on the micro molding process. Polym. Eng. Sci. 2003, 43, 1542–1554.
  • Malhab, N. B.; Régnier, G. Influence of the microinjection moulding process on the crystalline orientation and morphology of semicrystalline polymers. AIP Conf. Proc., 2011, 13, 820–825.
  • Guo, C.; Liu, F. H.; Wu, X.; Liu, H.; Zhang, J. Morphological evolution of HDPE parts in the microinjection molding: comparison with conventional injection molding. J. Appl. Polym. Sci. 2012, 126, 452–462.
  • Liu, F. H.; Guo, C.; Wu, X.; Qian, X. Y.; Liu, H.; Zhang, J. Morphological comparison of isotactic polypropylene parts prepared by micro-injection molding and conventional injection molding. Polym. Adv. Technol. 2012, 23, 686–694.
  • Yang, C. Flow-induced morphology evolution of uniformly miniaturized high-density polyethylene parts prepared by micro-injection molding. Int. J. Adv. Manuf. Technol. 2013, 68, 1745–1755.
  • Sha, B.; Dimov, S.; Griffiths, C.; Packianather, M. S. Investigation of micro-injection moulding: factors affecting the replication quality. J. Mater. Process. Technol. 2007, 183, 284–296.
  • Xie, L.; Ziegmann, G. Effect of gate dimension on micro injection molded weld line strength with polypropylene (PP) and high-density polyethylene (HDPE). Int. J. Adv. Manuf. Technol. 2010, 48, 71–81.
  • Shi, S. Y.; Pan, Y. M.; Lu, B.; Zheng, G. Q.; Liu, C. T.; Dai, K.; Shen, C. Y. Realizing the simultaneously improved toughness and strength of ultra-thin LLDPE parts through annealing. Polymer 2013, 54, 6843–6852.
  • Stern, C.; Frick, A. R.; Weickert, G.; Michler, G. H.; Henning, S. Processing, morphology and mechanical properties of liquid pool polypropylene with different molecular weights. Macromol. Mater. Eng. 2005, 290, 621–635.
  • Pan, Y. M.; Shi, S. Y.; Xu, W. Z.; Zheng, G. Q.; Dai, K.; Liu, C. T.; Chen, J. B.; Shen, C. Y. Wide distribution of shish-kebab structure and tensile property of microinjection molded isotactic polypropylene microparts: a comparative study with injection-molded macroparts. J. Mater. Sci. 2014, 49, 1041–1048.
  • Yu, M. C.; Young, W. B.; Hsu, P. M. Micro-injection molding with the infrared assisted mold heating system. Mater. Sci. Eng. A 2007, 460-461, 288–295.
  • Yang, S. Y.; Nian, S. C.; Huang, S. T. A study on the micro-injection molding of multi-cavity ultra-thin parts. Polym. Adv. Technol. 2011, 22, 891–902.
  • Sujatha, S.; Thomas, I.; Janelle, E. J.; Joel, V. A.; Robert, W. H.; Joseph, P. R. O. O.; Olga, A.; Jeffery, L. Y. X-ray diffraction study of nanocrystalline and amorphous structure within major and minor ampullate dragline spider silks. Soft Matter 2012, 8, 6713–6722.
  • David, T. G.; Lynn, W. J. Fiber morphology of spider silk: the effects of tensile deformation. Macromolecules 1997, 30, 2860–2867.
  • Riekel, C.; Branden, C.; Craig, C.; Ferrero, C.; Heidelbach, F.; Muller, M. Aspects of X-ray diffraction on single spider fibers. Int. J. Biol. Macromol. 1999, 24, 179–186.
  • Hotta, S.; Paul, D. R. Nanocomposites formed from linear low density polyethylene and organoclays. Polymer 2004, 45, 7639–7654.
  • Ning, N. Y.; Deng, H.; Luo, F.; Zhang, Q.; Wang, K.; Chen, F.; Fu, Q. The interfacial enhancement of LLDPE/whisker composites via interfacial crystallization. Polym. Adv. Technol. 2012, 23, 431–440.
  • Zhu, P. W.; Edward, G. Studies of injection-moulded isotactic poly(propylene) by synchrotron WAXD/SAXS: effects of nucleating agent on morphological distribution. Macromol. Mater. Eng. 2003, 288, 301–311.
  • Phillips, A. W.; Bhatia, A.; Zhu, P. W.; Edward, G. Shish formation and relaxation in sheared isotactic polypropylene containing nucleating particles. Macromolecules 2011, 44, 3517–3528.
  • Yan, T. Z.; Zhao, B. J.; Cong, Y. H.; Fang, Y. Y.; Cheng, S. W.; Li, L. B.; Pan, G. Q.; Wang, Z. J.; Li, X. H.; Bian, F. G. Critical strain for shish-kebab formation. Macromolecules 2010, 43, 602–605.
  • Strobl, G. R.; Schneider, M. J. Model of partial crystallization and melting derived from small-angle X-ray scattering and electron microscopic studies on low-density polyethylene. J. Polym. Sci. Polym. Phys. Ed. 1980, 18, 1361–1381.
  • Keller, A.; Machin, M. J. Oriented crystallization in polymers. J. Macromol. Sci., Part B, Phys. 1967, 1, 41–81.
  • Nogales, A.; Hsiao, B. S.; Somani, R. H. Srinivas, S.; Tsou, A. H.; Balta-Calleja, F. J.; Ezquerra, T. A. Shear-induced crystallization of isotactic polypropylene with different molecular weight distributions: in situ small- and wide-angle X-ray scattering studies. Polymer 2001, 42, 5247–5256.
  • Pople, J. A.; Mitchell, G. R. In-situ time-resolving wide-angle X-ray scattering study of crystallization from sheared polyethylene melts. Polymer 1996, 37, 4187–4191.
  • Pogodina, N. V.; Lavrenko, V. P.; Srinivas, S.; Winter, H. H. Rheology and structure of isotactic polypropylene near the gel point: quiescent and shear-induced crystallization. Polymer 2001, 42, 9031–9043.
  • Greco, R.; Ragosta, G. Isotactic polypropylenes of different molecular characteristics: influence of crystallization conditions and annealing on the fracture behaviour, J. Mater. Sci. 1988, 23, 4171–4180.
  • Na, B.; Zhang, Q.; Fu, Q.; Shen, K. Z. Super polyolefin blends achieved via dynamic packing injection molding: the morphology and mechanical properties of HDPE/EVA blends. Polymer 2002, 43, 7367–7376.
  • Yang, L.; Somani, R. H.; Sics, I.; Hsiao, B. S.; Kolb, R.; Fruitwala, H.; Ong, C. Shear-induced crystallization precursor studies in model polyethylene blends by in-situ rheo-SAXS and rheo-WAXD. Macromolecules 2004, 37, 4845–4859.
  • Lu, Y.; Yang, W.; Zhang, K.; Yang, M. B. Stress relaxation behavior of high density polyethylene (HDPE) articles molded by gas-assisted injection molding. Polym.Test. 2010, 29, 866–871.
  • Men, Y. F.; Rieger, J.; Strobl, G. Role of the entangled amorphous network in tensile deformation of semicrystalline polymers. Phys. Rev. Lett. 2003, 91, 955021–955024.
  • Chen, Y. H.; Zhong, G. J.; Wang, Y.; Li, Z. M.; Li, L. B. Unusual tuning of mechanical properties of isotactic polypropylene using counteraction of shear flow and β-nucleating agent on β-form nucleation. Macromolecules 2009, 42, 4343–4348.
  • Shi, S. Y.; Wang, L. N.; Xin, C. Z.; Zhao, K.; Liu, C. T.; Zheng, G. Q. Special morphology and its role in mechanical enhancement of LLDPE/MWCNTs composites prepared by hot compression molding. J. Appl. Polym. Sci. 2017, 134, 45525–45532.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.