[Plastic] Really biodegradable plastic is available

The latest research published on the 21st in the journal Nature claims that American scientists have invented a new process: only heat and water can make these compostable plastics easier to decompose.

Previously, Xu Ting, professor of materials science and engineering at the University of California, Berkeley, and his research team discovered an enzyme that can degrade toxic organophosphorus chemicals and designed a molecule called random heteropolymer or RHP.

In this study, the research team used a similar technology.

Studies have found that RHP-encapsulated enzymes will not change the properties of plastic.

For PLA, the researchers used an enzyme called proteinase K, which can chew PLA into lactic acid molecules; for polycaprolactone (PCL), they used lipase.

To induce plastic degradation, just add water and a small amount of heat.

Up to 98% of the plastics made using this process will be degraded into small molecules.

The researchers said that the modified polyester will not degrade at lower temperatures or short-term humidity.

(Keyword: Plastic)