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I took this picture of a top part of a PET water bottle which was heated to 140°C, and kept there for around 2 hours. The length of time was to ensure that the whole sample reached the same temperature, rather than the thin wall sections warm up to 140°C, and the thicker section reach only 100°C, for example. The opaque threaded section indicates a higher crystallinity of the plastic.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:57, 11 February 2015 | | 1,080 × 1,920 (723 KB) | LGMarshall (talk | contribs) | Reverted to version as of 20:41, 11 February 2015 Incorrect file replaced |
| 20:55, 11 February 2015 |  | 1,078 × 1,385 (706 KB) | LGMarshall (talk | contribs) | Cropped to allow for a smaller image, by removing the large empty balck space at the top. | |
| 20:41, 11 February 2015 |  | 1,080 × 1,920 (723 KB) | LGMarshall (talk | contribs) | I took this picture of a top part of a PET water bottle which was heated to 140°C, and kept there for around 2 hours. The length of time was to ensure that the whole sample reached the same temperature, rather than the thin wall sections warm up to 14... |
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