Vareek Bhai

I N D N 3 4 1 Mass Production + digital Manufacturing

Experiment:

We were given a small portion of Polyvinal Alcohol (PVA) to investigate the properties of the material to create a product of my own. 



The portion we were given was small which I then cut into ten smaller peices to start my experiments

1.) Disolving in water - Room temp

For my first experiment I placed the PVA in water in room temprature to observe the disolving rate, very slow process and took overnight to fully disolve

2.) Disolving in water - Boiling Water

Results for this experiment were similar to regular water except the disolving rate was slightly faster, couple of hours to disolve but the water would have to stay at boiling temprature.

3.) Microwaving the PVA



After 40seconds in the microwave the PVA started to smoke heavily, the result is the picture above where the PVA became solid form which also burnt around the edges too. Created an intresting property where it went from a rubbery form to a solid hard material, could be intesresting to apply to something.

4.) Heating the PVA with a heat gun

The results were very similar to the micro wave, the PVA bubbled up and started to melt, as soon as the heat was taken off though the material solidified and became a hard material 

5.) + 6.) Adding acid and mentholated spirits

The results for both sodium hydroxide and mentholated spirits were very similar, the ova reacted the same as it would in water and the dissolving rate was very similar. 

7.) Burning with lighter 

Through this experiment I learnt that PVA is extremely flammable and when ignited the PVA burnt very fast as a result it became black and crusty

8.) Grinding 

This experiment was pretty straight forward, the PVA split easily and became little pieces when put through the grinder

9.) Freezing the dissolved PVA

With this experiment I wanted to freeze the PVA dissolved to see how the form would be after remelting after being frozen, the results were the PVA stayed the same as when it was put in the freezer.

10.)

I will now continue experimenting with the PVA to find a new property of the material which I will be able to express visually and effectively