First Experiments: observations and conclusions

After testing the bottles, the following observations were made for each sample: 

Sample 1

Sample 2

Sample 3

Samples 4-5

Samples 6-8

Samples 9-11

Sample 12

Samples 13-15

Samples 16-18

Samples 19-21

Samples 22-26

In the chart below can be found the results of the above tests and the 
first measurements for the C02 leakage test:

First experiments: 14/10/11

Evaluating the results of the first experiments the following conclusions were drawn: 

·      Types “3”, “4”, “14” showed the best performance

·      The weakest areas of the bottles are located around the neck, at the base, seams caused by its production method

·      Bottles were surprisingly rigid even with a low content of CO₂. The optimal relation between rigidity and deformation needs to be defined, as well as the stability of the samples under compression

·      Screw caps for soft drinks, because they are designed to be pressure resistant, can withstand large values of pressure, whereas 1-start thread caps fail