Recent content by kaelibw

The main reason I cannot use a Cl based polymer is because of two things. 1. From what I have read, PVDF has the strongest piezoelectric force of any polymer. 2. PVDF is the only thing we can afford right now in large quantities to perform these experiments

ok. I am back and i need help. though I am not doing this anymore, i would like to continue research and send my findings back to my teacher. one of the biggest questions plagueing me was HOW do you expose it to dc electrical fields? what apparatus do you need to set up to acomplish this

Actually my project Was to just create a piezoelectric fiber mat but we weren't able to get past the polarization step. couldn't find any clear way to do it. regardless, this was a project we were doing in high school and the year ended a few months ago.

Yeah...I don't even know what half of that meant. I have never used a matrix in my life. Probably should have said that first.

If you are referring to the matrix, please send me a message if you figure it out. Thats something i can't understand either

yes there are. i do not know of all of them but the one i know best is Polyvinylidene Fluoride (PVDF). I have been experimenting with the stuff for quite a while but need some more info before i get the stuff to work. but from what i have read, it produces the biggest dielectric properties of...

Ok. I know this may sound like a stupid question but for the life of me i can't find definitions for these terms. I am working on developing a PVDF polymer based piezoelectric film and need to know what the terms Uniaxial and biaxial mean. I am using an electrospining method to make the fibers...

Sorry for the topic change but the thing is we hit another road block. Can anyone explain how the poling process works?

Well...that won't do any good. This is the first year that he has a group working on the topic and probably knows even less than my partners.:redface:

Now I'm sorry if i sound rude with all these contradictions and arguments, but the thing is, its been done before. We have found documents from NASA saying that they have used these fibers in piezoelectrical experiments, they just don't tell us anything about where they got their formulas or...

But the thing is we are not trying to make a polycrystalline fiber. that's the problem.

Ok. there's a new problem i need solved with this. After re-reading the matrix recomended by PRodQuanta, I just realized that that is for a piezo crystal. We aren't working with crystals, so the matrix is the wrong one for what we are working with.

to be honest, the first idea kinda does make sense. I know for a fact that there wasn't any glass or plastic in the fire. plus its almost a perfect match. I think we got a winner. Thanks Evo

Sorry, hiking was the wrong word. They had a trailer with them. I don't know why they were out there but the thing is they were. As for why they had the folders, what better way to get rid of confidential documents then fire. And why not use it as tinder on a camping trip. That looks almost...

To be honest, I don't think so. for one thing it was found in pennsylvania, and they weren't there before the fire was made.