Important announcement

Dear visitor,

Please note that this OpenCourseWare platform will be replaced at the end of 2026 by a new platform (under the same url ocw.tudelft.nl).

Courses and their contents that are currently available the platform will partly be migrated. URL’s for this content will change and content might be unavailable for some time. In addition, some courses will not be available anymore.

If you are linking to specific courses on this platform (for instance for your students), please take timely measures to avoid problems with access. Possible actions are:

  • Download the materials to your local platform (laptop, server)
  • For educators only (including TU Delft lecturers): Contact us at ocw@tudelft.nl and inform us what course you are using in what context (institute, program, period of use, number of students). We will research (in collaboration with the authors of the course) and decide if we will migrate the course, and if yes, can supply you with a new url.

Thank you.

2.3.2 The design of a recyclable cola bottle

Course subject(s) Module 2. Recycling of Packaging

Next, Robert Seegers will discuss the design of recyclable cola bottles. Earlier in this episode we have discussed considerations involved in the implementation of a recycling strategy. Let’s see how many design guidelines are taken into account in this design.

MAIN TAKEAWAYS

  • Knowledge of the sorting process is used in the design of the bottle: the glue is soluble in water, the material for the cap (PE) and label (PP) have lower densities than water and will float, while the material of the bottle (PET) has a higher density and will sink.
  • Coca-Cola is gradually increasing the amounts of recycled material in their bottles, as they don’t want to make concessions on the quality of their packaging.
  • Proper collection of the packaging waste is regarded as main challenge in closing the circular loop.
Creative Commons License
Sustainable Packaging in a Circular Economy by TU Delft OpenCourseWare is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Based on a work at https://online-learning.tudelft.nl/courses/sustainable-packaging-in-a-circular-economy/.
Back to top
[sg_popup id=6]