Work

Analysis of the Embodied Energy of Different Grades of Injection-Molded Polypropylene

Year: 2024

Type: article

Abstract: This research investigates the correlation between polymer melt viscosity, tensile properties, and injection molding energy consumption for three grades of polypropylene: a virgin grade, a recycled grade, and a modified recycled grade. Cold runner and hot runner molds are considered. The experiments focus on characterizing the thermal and mechanical energy drawn by the injection molding machine during the cycle. The data collected from the experiments are used to calculate the embodied energy as a function of the polymer viscosity and processing conditions. The analysis of the relationship between polymer rheology and processing provided guidelines for the molded parts’ embodied energy and mechanical characteristics. These guidelines and estimation techniques will support sustainable design for manufacturing practices.

Source: Journal of Manufacturing and Materials Processing

DOI: 10.3390/jmmp8040182

Authors: Peng Gao, Zarek Nieduzak, Joshua Krantz, Margaret J. Sobkowicz, Davide Masato

Institutions: University of Massachusetts Lowell, Western Washington University

Language: English

Topic: Injection Molding Process and Properties

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Responsible consumption and production, Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $2,046