Problem: Find the physical properties of a polymer that is made up of sodium silicate and ethyl alcohol.
Hypothesis: The polymer made of sodium silicate and ethyl alcohol will be harder than that of a polymer made of glue and sodium borate.
Materials: sodium silicate (water glass) solution, 12 mL
ethyl alcohol, 3 mL
2 small beakers
stirring rod
paper towels
Clorox wipes
Procedures: Pour 12 mL of sodium silicate into one of the small beakers. Do not touch the solution with bare skin. Pour 3 mLof ethyl alcohol into the other small beaker. Slowly pour the alcohol in the beaker into the other small beaker with the sodium silicate solution. Stir them together in a circular motion. Roll the polymer into a ball. Bounce the ball. Put the polymer into a Ziploc bag.
Results: The polymer was harder than the polymer made of glue and sodium borate. The ball bounced 15 centimeters in the air.
Conclusion: The polymer made of sodium borate was softer than the sodium silicate polymer, however it bounced as high.
Hypothesis: The polymer made of sodium silicate and ethyl alcohol will be harder than that of a polymer made of glue and sodium borate.
Materials: sodium silicate (water glass) solution, 12 mL
ethyl alcohol, 3 mL
2 small beakers
stirring rod
paper towels
Clorox wipes
Procedures: Pour 12 mL of sodium silicate into one of the small beakers. Do not touch the solution with bare skin. Pour 3 mLof ethyl alcohol into the other small beaker. Slowly pour the alcohol in the beaker into the other small beaker with the sodium silicate solution. Stir them together in a circular motion. Roll the polymer into a ball. Bounce the ball. Put the polymer into a Ziploc bag.
Results: The polymer was harder than the polymer made of glue and sodium borate. The ball bounced 15 centimeters in the air.
Conclusion: The polymer made of sodium borate was softer than the sodium silicate polymer, however it bounced as high.
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