Q. Consider the following statements:
- Parkesine is a man-made bioplastic.
- Biodegradable plastics are made from traditional petrochemicals.
- Polybutyrate adipate terephthalate is a non-biodegradable plastic.
Which of the statements given above is/are correct?
Answer:
Only 1 & 2
Notes:
- One of the very first man-made bioplastics, called Parkesine, was created in 1862 by Alexander Parkes (UK) from cellulose.
- Biodegradable plastics are made from traditional petrochemicals but designed to break down faster. They have additives that speed up their rate of decay or breakdown in the presence of oxygen and light. The presence of moisture also accelerates the breakdown process. Mainly, they get a breakdown in the presence of the sun’s UV light with some only breaking down at high industrial-scale temperatures.
- The most common examples include polybutyrate adipate terephthalate (PBAT), polybutylene succinate (PBS), polyvinyl alcohol (PVOH/PVA), and polycaprolactone (PCL).