Explore tens of thousands of sets crafted by our community.
Biodegradable Polymers
15
Flashcards
0/15
Polyvinyl Alcohol (PVOH)
Components: Vinyl alcohol monomers, Degradation Time: Few weeks to several months, Environmental Impact: Water-soluble and biodegradable, lesser environmental impact than many synthetics.
Polyhydroxyalkanoates (PHAs)
Components: Monomers produced by microbial fermentation, Degradation Time: Few months to several years, Environmental Impact: Biodegradable and non-toxic, but production can be resource-intensive.
Polycaprolactone (PCL)
Components: Caprolactone monomers, Degradation Time: 1-2 years, Environmental Impact: Biocompatible but slow to degrade in natural environments.
Polylactic Acid (PLA)
Components: Lactic acid monomers, Degradation Time: 6 months to 2 years, Environmental Impact: Biodegradable under industrial composting, limited degradability in cooler environments.
Polybutylene Adipate Terephthalate (PBAT)
Components: Butylene adipate and butylene terephthalate monomers, Degradation Time: 6 months to 2 years, Environmental Impact: Fully biodegradable under composting conditions, often used in blends.
Starch-based Bioplastics
Components: Starch blended with other biodegradable materials, Degradation Time: Few months, Environmental Impact: Biodegradable, low environmental impact when properly composted.
Polyethylene Terephthalate (PET)
Components: Ethylene glycol and terephthalic acid, Degradation Time: Hundreds of years, Environmental Impact: Non-biodegradable, significant contributor to plastic pollution.
Polybutylene Succinate (PBS)
Components: Butylene succinate monomers, Degradation Time: 6 months to 2 years, Environmental Impact: Biodegradable under composting conditions, less impact than conventional plastics.
Polyglycolic Acid (PGA)
Components: Glycolic acid monomers, Degradation Time: Few weeks to 6 months, Environmental Impact: Biodegradable, often used in medical applications due to its absorbability.
Chitosan
Components: Deacetylated chitin from crustacean shells, Degradation Time: Few weeks to several months, Environmental Impact: Biodegradable, non-toxic, promotes soil health.
Polyglycolide-co-lactide (PLGA)
Components: Glycolide and lactide copolymers, Degradation Time: 1 month to 2 years, depending on composition, Environmental Impact: Biodegradable with minimal toxicity, used primarily in medical applications.
Polymethylhydrogensiloxane (PMHS)
Components: Methylhydrogensiloxane monomers, Degradation Time: Variable, catalyzed by light, heat, and moisture, Environmental Impact: Degradable silicone-based polymer, lesser known in environmental context.
Cellulose Acetate
Components: Cellulose from wood or cotton and acetic anhydride, Degradation Time: 6 months to 2 years, typically, Environmental Impact: Biodegradable but rate is slow compared to other polymers, also dependent on acetylation level.
Polyethylene Furanoate (PEF)
Components: Ethylene glycol and 2,5-furandicarboxylic acid, Degradation Time: Expected to be similar to PET, Environmental Impact: Biobased alternative to PET, potentially more sustainable.
Polycarbonate (PC)
Components: Bisphenol A and phosgene, Degradation Time: Hundreds of years, Environmental Impact: Non-biodegradable and potential endocrine disruptor due to BPA.
© Hypatia.Tech. 2024 All rights reserved.