Green Calorimetry through 3D Printing─Coffee Cup Calorimetry

Abstract

Polystyrene cups are commonly used for calorimetric experiments at the high school and undergraduate levels. However, the environmental impact of polystyrene is well-known and alternatives to this nonrenewable resource are desired, especially in localities where polystyrene bans are enforced. This work describes a simple, 3D printed container (made in two forms, one with a 2.5 mm wall thickness and a second with a 5 mm wall thickness) which behaves statistically identical to single or double layers of polystyrene cups. These containers can be rapidly manufactured on site at a minimal cost and are durable and reusable. The use of 3D printing allows for a green alternative to polystyrene.