Chen SC*, Wang YC, Feng CT and Lee SW
Volume6-Issue10
Dates: Received: 2025-09-15 | Accepted: 2025-10-22 | Published: 2025-10-23
Pages: 1540-1543
Abstract
MuCell® Microcellular Injection Molding (MIM) is a key green technology that reduces energy consumption and material usage while facilitating recycling. Despite its benefits, surface defects and inconsistent foaming remain challenges. Gas Counter Pressure (GCP) has been introduced to improve foam morphology, but conventional methods often suffer from pressure instability. This study investigates the impact of a stabilization device in GCP-assisted molding. Results show that stabilized GCP increases cell density by approximately 41% compared to conventional GCP, and reduces the standard deviation of cell diameter from 2.54 µm to 1.77 µm. These improvements significantly enhance cell uniformity, underscoring the broader potential of MuCell® technology in plastic manufacturing.
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DOI: 10.37871/jbres2208
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Copyright
© 2025 Chen SC, et al. Distributed under Creative Commons CC-BY 4.0 
How to cite this article
Chen SC, Wang YC, Feng CT, Lee SW. Stabilization of Gas Counter Pressure in Supercritical Microcellular Injection Molding: A Case-Review. J Biomed Res Environ Sci. 2025 Oct 23; 6(10): 1540-1543. doi: 10.37871/jbres2208, Article ID: JBRES2208, Available at: https://www.jelsciences.com/articles/jbres2208.pdf
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References
- Colton JS, Suh NP. Nucleation of microcellular foam: Theory and practice. Polym Eng Sci. 1987;27(7):500. doi: 10.1002/pen.760270704.
- Chen SC, Hsu PS, Lin YW. Establishment of gas counter pressure technology and its application to improve the surface quality of microcellular injection molded parts. Int Polym Process. 2011;26(3):275-282. doi: 10.3139/217.2437.
- Chen SC, Chang CW, Tseng CY, Shen EN, Feng CT. Using P(Pressure)-T(Temperature) path to control the foaming cell sizes in microcellular injection molding process. Polymers. 2021;13(11):1843. doi: 10.3390/polym13111843.
- Agustion YH, Chen SC, Feng CT, Iskandar BP. High-Quality Foaming and Weight Reduction in Microcellular-Injection-Molded Polycarbonate Using Supercritical Fluid Carbon Dioxide under Gas Counter Pressure. Polymers (Basel). 2024 Sep 23;16(18):2674. doi: 10.3390/polym16182674. PMID: 39339137; PMCID: PMC11436180.
- Chen SC, Lee KH, Chang CW, Hsu TJ, Feng CT. Using Gas Counter Pressure and Combined Technologies for Microcellular Injection Molding of Thermoplastic Polyurethane to Achieve High Foaming Qualities and Weight Reduction. Polymers (Basel). 2022 May 15;14(10):2017. doi: 10.3390/polym14102017. PMID: 35631900; PMCID: PMC9143106.
