TABLE 3.
Deterioration of physical properties after environmental exposure at station 2
| Formulation | Day 25
|
Day 75
|
Day 150
|
Day 380
|
||||
|---|---|---|---|---|---|---|---|---|
| TS | %E | TS | %E | TS | %E | TS | %E | |
| 100% PHBV | 103a | 87 | 105 | 89 | 37 | 35 | —b | — |
| 30% Starch | 70 | 56 | 31 | 39 | — | — | — | — |
| 30% PEO-coated starch | 60 | 47 | 24 | 35 | — | — | — | — |
| 50% Starch | 32 | 40 | — | — | — | — | — | — |
| 50% PEO-coated starch | 18 | 26 | — | — | — | — | — | — |
| 100% Starch | — | — | — | — | — | — | — | — |
a
The data are percentages of the initial (zero-time) values.
b
—, severely deteriorated sample for which data could not be obtained.