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New bio-plastic decomposes rapidly in seawater, study finds
Updated On: 18 December, 2025 06:44 AM IST | Tokyo | Agencies
When mixed the negatively charged cellulose and positively charged ions attract each other, giving the plastic its strength. In salt water, those salt bridges break apart, triggering decomposition
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A bag made using the new material. PIC COURTESY/RIKEN
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A new plastic stays strong during use, yet breaks down rapidly in natural settings without leaving microscopic debris. It uses two polymers.
One comes from carboxymethyl cellulose derived from wood-pulp. The other is made from positively charged polyethylene-imine guanidinium ions.
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