What is the best material for thermo molding fins on a helix wind turbine?

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SUMMARY

The discussion focuses on selecting the best material for thermo molding fins for a vertical axis wind turbine, specifically a helix design. The user intends to use thermo molding techniques to shape the fins from plastic sheets, emphasizing the need for UV and weather resistance. The materials considered include ABS, styrene, and PVC, with a requirement for the sheets to be 1-2 mm thick and capable of supporting their own weight in outdoor conditions. The user seeks definitive recommendations on the most suitable material for this application.

PREREQUISITES
  • Understanding of thermo molding techniques
  • Knowledge of material properties, specifically UV and weather resistance
  • Familiarity with plastic types such as ABS, styrene, and PVC
  • Basic principles of vertical axis wind turbine design
NEXT STEPS
  • Research the mechanical properties of ABS, styrene, and PVC for outdoor applications
  • Learn about the thermo molding process and best practices for shaping plastics
  • Investigate UV-resistant coatings or additives for enhanced durability
  • Explore case studies of successful vertical axis wind turbine designs using similar materials
USEFUL FOR

Engineers, DIY enthusiasts, and renewable energy developers interested in constructing vertical axis wind turbines and optimizing material selection for outdoor durability.

taylaron
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Im building an outside vertical axis wind turbine. i need to build the (about 20) plastic fins that are going to be used to form the helix (which is the wind turbine)

im trying to build the fins that are used on the helix wind turbine.
a good video of it is on youtube:
a crappy picture of it is on their home site: http://www.helixwind.com/en/

Im going to use the method of thermo molding (melt sheet plastic till its malliable place it over a cast and use suction to form the shape you want)

i've been all over the internet trying to find sheets of PVC which are UV and weather resistant (assuming raw pvc is not)
i've come up with many different materials but i don't know which one to chose to make this generator.

this stuff needs to be 1-2 mm thick (right?). able to support it's own weight (about 2ft long by 8 inches) in a 'compound angle' along with being able to stand outside weather (heat, UV< stress, etc...)

such as abs, styrene, pvc, etc... the problem is i have no idea which one i should use for this project.

some suggestions would be greatly appreciated.
thanks
 
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i know this is a long post but some help would be greatly appreciated.
 

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