Effect of Cooling Agent on Temperature Profile During Molding Injection: Case Study for Polylactic Composites

Isopescu, Raluca; Postelnicescu, Paula

Raluca Isopescu, Paula Postelnicescu

Effect of Cooling Agent on Temperature Profile During Molding Injection: Case Study for Polylactic Composites

Abstract:
The paper presents a theoretical study for the cooling of polymer samples in an injection molding process. The study is applied for neat polylactic acid (PLA), PlA-talc and PLA-starch composite samples representing specimens for mechanical tests reported in literature. A one dimensional model was developed for the heat transport through the thickness of the sample from the polymer to the cooling agent: air in natural convection and water flowing through cooling channels. The heat of solidification of molten polymer was also considered. The model was solved in the frame of Matlab software. The results obtained consist in the evaluation of the final time required to reaches a temperature of about 60°C in the core of the specimen and the evaluation of the temperature profile along the cooling process. When using cooling air in natural convection the temperature profile shows insignificant space variation, but the duration of cooling is about 6 min. The use of cooling water proved to be more efficient in terms of cooling time is about 15-25s, while the temperature gradient in the thickness of the specimen is quite significant at any moment of time.

Keywords:
injection molding; mold cooling; polylactic acid; composites

Issue: 2021 Volume 58, Issue 1

Pages: 228-236

Publication date: 2021/4/5

https://doi.org/10.37358/MP.21.1.5462

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
ISOPESCU, R., POSTELNICESCU, P., Effect of Cooling Agent on Temperature Profile During Molding Injection: Case Study for Polylactic Composites, Mater. Plast., 58(1), 2021, 228-236. https://doi.org/10.37358/MP.21.1.5462

Vancouver
Isopescu R, Postelnicescu P. Effect of Cooling Agent on Temperature Profile During Molding Injection: Case Study for Polylactic Composites. Mater. Plast.[internet]. 2021 Jan;58(1):228-236. Available from: https://doi.org/10.37358/MP.21.1.5462

APA 6th edition
Isopescu, R., Postelnicescu, P. (2021). Effect of Cooling Agent on Temperature Profile During Molding Injection: Case Study for Polylactic Composites. Materiale Plastice, 58(1), 228-236. https://doi.org/10.37358/MP.21.1.5462

Harvard
Isopescu, R., Postelnicescu, P. (2021). 'Effect of Cooling Agent on Temperature Profile During Molding Injection: Case Study for Polylactic Composites', Materiale Plastice, 58(1), pp. 228-236. https://doi.org/10.37358/MP.21.1.5462

IEEE
R. Isopescu, P. Postelnicescu, "Effect of Cooling Agent on Temperature Profile During Molding Injection: Case Study for Polylactic Composites". Materiale Plastice, vol. 58, no. 1, pp. 228-236, 2021. [online]. https://doi.org/10.37358/MP.21.1.5462

Text
Raluca Isopescu, Paula Postelnicescu,
Effect of Cooling Agent on Temperature Profile During Molding Injection: Case Study for Polylactic Composites,
Materiale Plastice,
Volume 58, Issue 1,
2021,
Pages 228-236,
ISSN 2668-8220,
https://doi.org/10.37358/MP.21.1.5462.
(https://revmaterialeplastice.ro/Articles.asp?ID=5462)
Keywords: injection molding; mold cooling; polylactic acid; composites

RIS
TY - JOUR
T1 - Effect of Cooling Agent on Temperature Profile During Molding Injection: Case Study for Polylactic Composites
A1 - Isopescu, Raluca
A2 - Postelnicescu, Paula
JF - Materiale Plastice
JO - Mater. Plast.
PB - Materiale Plastice SRL
SN - 2668-8220
Y1 - 2021
VL - 58
IS - 1
SP - 228
EP - 236
UR - https://doi.org/10.37358/MP.21.1.5462
KW - injection molding
KW - mold cooling
KW - polylactic acid
KW - composites
ER -

BibTex
@article{MatPlast2021P228,
author = {Isopescu Raluca and Postelnicescu Paula},
title = {Effect of Cooling Agent on Temperature Profile During Molding Injection: Case Study for Polylactic Composites},
journal = {Materiale Plastice},
volume = {58},
number = {1},
pages = {228-236},
year = {2021},
issn = {2668-8220},
doi = {https://doi.org/10.37358/MP.21.1.5462},
url = {https://revmaterialeplastice.ro/Articles.asp?ID=5462}
}

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