Page 25 - Plastics News April 2025
P. 25
ENVIRONMENT NEWS
Revolutionary Plastic Dissolves in Seawater:
A Leap Towards Sustainable Packaging
n a significant advancement for environmental The material's versatility is noteworthy. It can be
sustainability, researchers at the RIKEN Center molded into various forms, ranging from rubber-
Ifor Emergent Matter Science (CEMS) in Ja- like textures to rigid structures, making it suit-
pan have developed a new type of plastic that able for applications in packaging, medical de-
dissolves completely in seawater within hours, vices, and even 3D printing. Its non-toxic and
leaving no microplastic residue. This innovation non-flammable properties further enhance its
addresses the escalating issue of plastic pollu- appeal for widespread use.
tion in marine environments.
This development represents a promising step
The newly developed plastic is composed of su- towards mitigating plastic pollution, particularly
pramolecular polymers, which are held together in oceanic contexts where traditional plastics
by reversible bonds. These bonds provide the persist for centuries. By offering a material that
material with strength and flexibility during use combines durability during use with rapid, harm-
but allow it to break down rapidly when exposed less degradation post-use, the RIKEN team's in-
to saltwater. The plastic is formed by combining novation could pave the way for more sustain-
sodium hexametaphosphate, a common food able plastic alternatives in various industries.
additive, with guanidinium-based monomers.
When immersed in seawater, the salt ions dis- As the global community grapples with the envi-
rupt the polymer structure, causing the material ronmental impacts of plastic waste, such break-
to dissolve into harmless compounds. throughs underscore the potential of scientific
innovation in fostering a more sustainable future.
Beyond its rapid degradation in marine environ- Source:- TexSPACE Today
ments, this plastic also decomposes in soil within
approximately ten days, releasing nutrients such
as phosphorus and nitrogen, which can benefit
plant growth. Importantly, the decomposition
process does not emit harmful carbon dioxide,
distinguishing it from many conventional plastics
that contribute to greenhouse gas emissions.
April 2025 PLASTICS NEWS 25
