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Can you propose a PP formulation to use in 3D printing?
Challenge Type: engineering
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$600
top 3
17
submissions
DONE
78 months ago

Issue #1: Traditional polymers used in 3D printing have poor chemical resistance.

Conventional polymeric materials used for 3D printing include, but are not limited to, PLA (polylactic acid), ABS (Acrylonitrile-Butadiene-Styrene) & Nylon.  Categorized as amorphous polymers, these materials have excellent dimensional stability but poor chemical resistance. 


Issue #2: We've tried semi crystalline PP instead, but it has its owns drawbacks during the 3D printing process. 

Semi crystalline PP (polypropylene) could be a potential alternative to compensate for the chemical resistance.  However, it results in heavy warping when subjected to the 3D printing process. The warpage is due to a different cooling and solidification process resulting in high stress. Along with warpage, polypropylene does not stick to the bed and has poor interfacial adhesion in the 3D printing process.

Deliverables

Propose a NEW formulation to reduce warpage and eliminate poor interfacial adhesion of the polypropylene filament while 3D printing.  Specifically, answer the following:

  1. What is your proposed PP formulation?
  2. How does your formulation reduce warpage during 3D printing process?
  3. How does your formulation reduce or eliminate poor interfacial adhesion of PP during the 3D printing process?  

Consider: Tight dimensional tolerance +/- 0.05 mm should be achieved on the diameter of 3D filament.

*Your proposed formulation should be novel and not currently patented.  

    Submissions will be graded on the following criteria:
  • Meets Deliverables
  • Creativity
  • Clarity
Reward Tiers
3 Winners
will receive $200 each
Leaderboard
$200.00 Rituraj Borah University of Antwerp
$200.00 Tarun Jha University of Florida
$200.00 Shadab Sabir B.S A CRESCENT UNIVERSITY
Submission questions


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