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Cellulose nanofibers, a jewel: in Japan they think of wooden cars

Cellulose nanofibers are light, resistant, printable and recyclable: what are we waiting for to make wooden cars? In Japan they are thinking about it.

October 31, 2019
Gianluca RiccioGianluca Riccio
⚪ 2 minutes
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It weighs a fifth of steel but is five times stronger: plant-based cellulose nanofiber (CNF) offers carmakers the opportunity to build strong, lightweight wooden cars.

There is no need to turn up your nose, the cars are made of fibers made from wood, but they will certainly not look like a piano. And there's more: Cellulose nanofibers sustainably remove up to 2.000 kg of carbon from the car's life cycle.

Cellulose nanofibers, a material that surprises everyone

The properties of cellulose nanofiber are nothing short of extraordinary: a study from last year estimated that they have an average resistance even higher than that of spider silk.

The exterior appearance of a cellulose nanofiber car is no different from that of a vehicle made of metal and plastic, but the performance and environment gains a lot

Essentially it is wood that has been chopped and macerated into substances that remove lignin and hemicellulose.

It is a process perfected by a research team of theUniversity of Maryland, I told you about it recently in this post.

The article continues after the related links

Spider silk from modified silkworms: stronger than Kevlar and 100% natural

First nerve networks 3D printed with bioink

This iter (based on treatment with hydrogen peroxide) allows to obtain a highly condensed, light, incredibly resistant and above all absolutely recyclable material.

The plus? It can be printed

Cellulose nanofibers also have great potential in production. Its characteristics also allow them to be printed to create complex shapes.

Cellulose nanofibers
Printable cellulose nanofibers are an extremely versatile material: they can be used both for the external bodywork and for the interior

The Japanese Ministry of the Environment Yoshiaki Harada (looking for redemption after the unhappy exits on Fukushima) promotes the use of these nanofibers as a sustainable way for manufacturers to reduce both the weight and the environmental impact of their cars.

It could be a way to change the car building philosophy, and the future of autonomous vehicles will also benefit from this material.

Slower cars, which take us around and made of natural materials: find me a fault.

Tags: carsWood3D printed materialMaterials3d Press

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