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
12.172.225512.302.240135.990.6569
21.782.239531.782.2568100.7716
31.650.936941.660.947870.611.1656
42.322.308172.292.32841-1.290.8769


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