User:Alicia Rasines Mazo/Notebook/CHEM-582 Experimental Chemistry II/2015/02/11

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Tasks for February 11 To synthesize new, thinner films containing TiO2 and epoxy and epoxy alone To measure the swelling of a synthesized epoxy film Measurement of swelling in epoxy film The film made on February 4 was cut into pieces, weighed and measured for thickness, then placed in water until the next lab period Measurements were as follows: Section Initial thickness (mm) Initial weight (g) Final thickness (mm) Final weight (g) % difference in thickness % increase in weights 1 2.17 2.22551 2.30 2.24013 5.99 0.6569 2 1.78 2.23953 1.78 2.25681 0 0.7716 3 1.65 0.93694 1.66 0.94787 0.61 1.1656 4 2.32 2.30817 2.29 2.32841 -1.29 0.8769