Developing building materials from wood-based plastic

Developing building materials from wood-based plastic

A brand new kind of semi-structural, degradable wood-based plastic might exchange the plastics at the moment utilized in building and furnishings.

KTH researcher Peter Olsén reveals a pattern of a brand new degradable wood-based plastic. “These new supplies, attributable to their excessive fiber content material and degradable matrix, may very well be a game-changer for a future round supplies financial system,” he mentioned. Picture credit score: Peter Olsen

In accordance with KTH researchers, not like thermoplastic, the fabric will be damaged down with out harming the surroundings.

Making supplies sturdy sufficient to interchange fossil supplies utilized in residence building and furnishings, similar to toilet cupboards, doorways, wall panels, and counter tops, is likely one of the targets of composite growth. of renewable wooden. As well as, it should be round or sturdy.

Degradability permits circularity. By breaking down the plastic, the fibers will be recycled and the chemical parts of the plastic reused.

Peter Olsén, Researcher, KTH Royal Institute of Expertise

The energy of supplies like fiberglass is primarily attributable to their excessive fiber content material, however it’s troublesome to provide a degradable wooden composite with out struggling vital thermal harm from procedures similar to melt-blending.

Olsén and his KTH colleagues declare to have found a way that gives each excessive fiber content material and degradability.

Nobody has been in a position to make a degradable plastic with such a excessive fiber content material whereas having good dispersion and low fiber harm. This resulted in considerably improved materials properties in comparison with earlier makes an attempt.

Peter Olsén, Researcher, KTH Royal Institute of Expertise

Researchers have mixed polymer chemistry with course of know-how similar to carbon fiber composites to extend fiber content material.

In accordance with Olsén, all the pieces relies on accessible and cheap uncooked assets. Degradation by-products will be recycled and are innocent to the surroundings, enabling what Olsén calls “a completely round product idea”.

Plus, it might assist preserve timber.

It invitations the recycling of wooden fibers to permit the reformation of the fabric“mentioned Olsen.

However Olsén says the components must be improved earlier than advertising and marketing.

Key to the work is that it reveals a brand new method to create high-fiber, degradable bio-composites.

Peter Olsén, Researcher, KTH Royal Institute of Expertise

Nature Communication revealed the findings.

The KAW Biocomposites venture (grant 2018.0451 LAB), the Swedish Basis for Strategic Analysis (grant FID15-0115 TL and LAB) and funding from Formas, a Swedish Analysis Council for Sustainable Improvement (Re-Design Plastic, 2020-01696 PO), offered research help.

Journal reference

Oliaei, E., et al. (2022) Extremely bolstered and degradable lignocellulosic biocomposites by polymerization of latest polyester oligomers. Communication Nature. doi:10.1038/s41467-022-33283-z.


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