College of Engineering and Polymer Science

Date of Last Revision

2022-05-02 07:46:28


Mechanical Engineering

Honors Course


Number of Credits


Degree Name

Bachelor of Science

Date of Expected Graduation

Spring 2022


The purpose of this research is to examine the effects of recycling PLA filament for 3D printing on its material properties. After examining these effects, PLA and carbon fiber additives were mixed with recycled PLA pellets in different ratios to attempt to regain material properties lost in the recycling process. To complete these findings, an experiment was design and executed.

The research found that tensile strength during multiple iterations of recycling remained mostly unaffected, however, the strain degraded exponentially. In the PLA additive study, high ratios of PLA additive were able to increase the strength and strain properties of the material. In the carbon fiber study, the strength and strain properties could not be restored.

Research Sponsor

Dr. Manigandan Kannan

First Reader

Dr. Gregory Morscher

Second Reader

Aaron Trexler

Honors Faculty Advisor

Scott Sawyer



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