What You Need to Know
PLA degrades thermally by chain scission producing lactic acid, paper wraps absorb moisture leading to hydrolysis of cellulose, and starch blends undergo gelatinization and enzymatic hydrolysis releasing glucose. These processes alter barrier properties and structural integrity, limiting their use to specific temperature and time windows.
The Science
Primary Reaction
Thermal degradation of PLA, hydrolysis of cellulose, gelatinization and enzymatic hydrolysis of starch