Relative influence of injection molding processing conditions on HDPE acetabular cups dimensional stability

Zhiltsova, Tatiana; Oliveira, Mónica; Ferreira, José Martins

doi:10.1016/j.jmatprotec.2008.09.018

Cited by 35 publications

(21 citation statements)

References 5 publications

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“…Sintering, powder compaction and sol-gel are all alternative techniques to produce polymeric composites, however, the operating conditions (temperature, pressure etc.) and time needed are far in excess of those of injection molding [ 24 ]. As a polymer matrix, high density polyethylene (HDPE) is well-known for its semi-crystalline structure which is closely bound to the overall macroscopic properties of the polymer such as mechanical and thermal characteristics [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the residence time (i.e., the time duration that the polymer spends in the barrel) along with barrel temperature, and the crystallization process of the polymer, especially HDPE, become affected [ 23 ]. In a study by Bociaga and Palutkiewicz [ 24 ], it was found that mold temperature had the greatest impact on the mechanical properties and surface structure. They investigated the effect of different injection molding conditions and concluded that low injection temperature, or barrel temperature, resulted in polymeric molded parts that consisted of a solid skin layer and a fine cellular core.…”

Section: Introductionmentioning

confidence: 99%

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On the Injection Molding Processing Parameters of HDPE-TiO2 Nanocomposites

et al. 2017

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In recent years, the development and use of polymeric nanocomposites in creating advanced materials has expanded exponentially. A substantial amount of research has been done in order to design polymeric nanocomposites in a safe and efficient manner. In the present study, the impact of processing parameters, such as, barrel temperature, and residence time on the mechanical and thermal properties of high density polyethylene (HDPE)-TiO2 nanocomposites were investigated. Additionally, scanning electron microscopy and X-ray diffraction spectroscopy were used to analyze the dispersion, location, and phase morphology of TiO2 on the HDPE matrix. Mechanical tests revealed that tensile strength of the fabricated HDPE-TiO2 nanocomposites ranged between 22.53 and 26.30 MPa, while the Young’s modulus showed a consistent increase as the barrel temperature increased from 150 °C to 300 °C. Moreover, the thermal stability decreased as the barrel temperature increased.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

On the Injection Molding Processing Parameters of HDPE-TiO2 Nanocomposites

et al. 2017

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“…The above Table highlights the importance of selection of parameters and the significance of their optimum levels to achieve a robust process or parameter design [1][2][3][4][5][6][7][8][9]. The parameters like screw stroke, injection temperature have been found out less important and nozzle temperature has been substituted for barrel temperature.…”

Section: Table No 1 Parameters Considered By Various Authors For Promentioning

confidence: 99%

Parameter Optimization of Injection Molding of Polypropylene by using Taguchi Methodology

Kavade¹,

Kadam²

2012

IOSRJMCE

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“…To control the formation of the frozen layer, the appropriate selection of injection time and melt temperature would be necessary. Regarding packing analysis [7], it was reported that increased packing pressure would reduce the shrinkage of HDPE cups.…”

Section: Introductionmentioning

confidence: 99%

The influence of flow and thermal properties on injection pressure and cooling time prediction

Huszar

Belblidia

Alston

et al. 2016

Applied Mathematical Modelling

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Highlights  An experimental and numerical case study for injection moulding is presented;  The effect of material properties for mould filling/cooling stages was studied;  True viscosity and no-flow temp. set to T g yielded accurate pressure estimation;  Thermal conductivity had negligible effect on pressure prediction;  Molten state heat capacity and thermal cond. gave best estimate for cooling time.

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Relative influence of injection molding processing conditions on HDPE acetabular cups dimensional stability

Cited by 35 publications

References 5 publications

On the Injection Molding Processing Parameters of HDPE-TiO2 Nanocomposites

On the Injection Molding Processing Parameters of HDPE-TiO2 Nanocomposites

Parameter Optimization of Injection Molding of Polypropylene by using Taguchi Methodology

The influence of flow and thermal properties on injection pressure and cooling time prediction

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