"PHAs are biodegradable via composting. Optimum conditions for the commercially available BiopolTM (PHA) degradation during a 10-week composting period were 60°C, 55% moisture, and C:N ratio of 18:1. BiopolTM reached close to a 100% degradation rate under these composting conditions. The aliphatic polyesters function like starch or cellulose to produce non-humic substances such as CO2 and methane. These aliphatic polymers are suited to applications with short usage and high degradation rate requirements (Gallagher, 2001).
Last edited by Du; 07/29/2010 at 04:25 AM.
|