Researchers utilize nanocellulose and 3D printing for sustainable architectural elements.
The innovative application enables the production of lightweight and energy-efficient building components.
Nanocellulose could represent an eco-friendly alternative in the construction industry.
Novel Use of Nanocellulose in 3D Printing for Eco-Friendly Architecture.
A revolutionary development in construction could fundamentally change the way we manufacture architectural elements. A team of researchers has developed an innovative method to use nanocellulose through 3D printing for sustainable architecture.
The printer ink consists of nanocellulose fibers, to which water and the algae-based material alginate are added. Alginate gives the ink additional flexibility when drying. Nanocellulose is considered an environmentally friendly alternative to plastic, as it is one of the by-products of the world's largest industries.
So far, nanocellulose has been mainly used as a hydrogel in biomedicine. There, it serves as a scaffold for tissue and cell growth through 3D printing due to its biocompatibility and moisture. However, the innovation lies in drying the nanocellulose and using it as an architectural material.
The energy efficiency is based on the shear-thinning properties of the nanocellulose hydrogel. When pressure is applied, it liquefies and can be 3D printed. Removing the pressure maintains its shape. This eliminates the energy-intensive processes common in the construction industry.
Printed elements made of nanocellulose can serve as lightweight room dividers, blinds, wall panel systems, or as a base for coatings on existing components, such as wall coverings or sound-absorbing acoustic elements.
