Thursday, March 3, 2011

Sodium Silicate Polymer Lab

I our latest lab we mixed together sodium silicate solution and ethyl alcohol and it formed a polymer. The polymer was solid and was very bouncy when molded into a ball. If i had to describe it , i believe that it kind of looked like a bouncy ball and if you mashed it over and over. If we used more alcohol i believe that it would have been harder and more difficult to mold into a ball.
We bounced it 7 times from 30 centimeters and it got about 24.2 centimeters up. When we refrigerated the ball for about 15 minutes and it bounced about 18 centimeters. As soon as we started to stir it it immediately started to get in the form of a solid.The things that were similar with the one that we did on tuesday is that they were both polymers. In the other lab we did it was a lot more liquidy and squishy. in this one it was a lot more compresses together. If we put it in a ball it was very fragile and it could be very crumbly. It could get completely crumbled up if we bounced it too hard or if we squeezed it too hard with our fingers. it felt kind of waxy while the other one that we did on tuesday was more moisturized. it kinda looked cloudy and the other one was completely white. If you let it sit though for a while it will flatten out.

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