To whomever is going to be evaluating this, I am sorry for the lack of information. I have tried to actually get it done, but it has not happened. I have no one to blame but myself, and therefore I wish I had not been so stupid last week (time management issues, to the max). I apologize once again. -sincerely: Stephen Dueck
p.s. feel free to discuss what you might want to see within it, the kind of material or processing information you would like to know (if it interests you), of if you think that the subject should be modified. Really I want you to have something to talk about, so just say anything you think it needs (obviously information, references, etc.)
Stephen
This sounds like a pretty cool topic.
Comparing actual data on the number of years it takes both PLAs and PHAs to degrade in a landfill is critical as that's kind of the motivation to use them as you stated. With that you should get multiple references about the amount of time it takes the less environmentally friendly plastics to degrade in the same situation.
Bioplastic Production/Processing Methods
The main thing I'd like to see in the PHA and PLA sections is the limitations compared to the less green plastics. Discussing what each has to sacrifice to become biodegradable, thermal properties, hardness all of that. In the summary, discussing some other properties that could e sacrificed for specific plastic uses that have not been tried would be a neat idea as well.
Developments in Bioplastic processing
When you discuss developments in this field, I'd like to see data from the earliest bioplastics and see the amount of the sacrificed property lost compared to the losses today and discuss how we've improved and how we can continue to improve the process.
Energy, Cost and Waste comparison
Finally in the comparison at the end discuss the differences between the physical processing of the bioplastics and the old plastics, discuss the machinery involved and how it has changed to make bioplastics (more or less energy per kg of output if you can get the numbers), and how the machinery or process could be tweaked to lower energy of production instead of lowering energy of disposal which the rest of the page covers.
Good Luck!
- D. Zagrodney