Stabilization of Gas Counter Pressure in Supercritical Microcellular Injection Molding: A Case-Review

Chen SC*; Wang YC; Feng CT; Lee SW

doi:10.37871/jbres2208

Case Study

Stabilization of Gas Counter Pressure in Supercritical Microcellular Injection Molding: A Case-Review

Journal of Biomedical Research & Environmental Sciences article abstract with citation details, DOI, publication dates, subject areas, full text links, and references.

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Open Access

Article Type Case Study

Subject General Science

OCLC JBRES Record

Chen SC*, Wang YC, Feng CT and Lee SW

Issue: Volume6-Issue10

Pages: 1540-1543

Received: 2025-09-15

Accepted: 2025-10-22

Published: 2025-10-23

Abstract

MuCellÂ® 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 Âµm to 1.77 Âµm. These improvements significantly enhance cell uniformity, underscoring the broader potential of MuCellÂ® technology in plastic manufacturing.

FullText HTML FullText PDF DOI: 10.37871/jbres2208

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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

Subject area(s)

Polymer and Materials Engineering Material Science

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.