Looking for a polymer similar to polycarbonate and ABS

[hsstudent]

I am doing a science fair experiment testing the effectiveness of polymers commonly used in football helmets. I am planning on using polycarbonate and ABS, because they are commonly used. However, I am looking for one or two other polymers that are similar in strength and price to add more of a variable. I have done my research, but the only other polymer I have found is Noryl, which is a little out of my price range. Does anyone know of any materials like this? I also need something that can be bought in fairly small quantities.

Thank you

 

[Mech_Engineer]

You can do a physical properties search on www.matweb.com to find polymers with similar properties.

 

[Rafa]

Polycarbonate and ABS are chemical name for some polymers. Noryl, ryton, nylon... are trademark. You can get the same polymer with differents names (trademark). For specifications is better don't use trademaks