Work

Application of cellulose nitrate nanoparticles as binder in waterborne wood coatings and their additional use in debonding on demand

Year: 2025

Type: article

Abstract: The development of sustainable and environmentally friendly coatings is a key factor to shaping the future of coatings technology. Water-based products represent an eco-friendly alternative to conventional solventborne coatings, minimizing the environmental impact and allowing for easier application indoors. Until now, cellulose nitrate binders have not been used in waterborne formulations, due to challenging production of respective dispersions. Herein, we introduce an approach for such waterborne cellulose nitrate coatings, derived from respective nanoparticle dispersions. This enables a significant reduction in the content of volatile organic compounds. After nanoparticle synthesis via precipitation, the particles are used for formulation of a waterborne coating, which is stable at higher concentrations as well. Additionally, initial efforts to optimize the formulation for use on wooden surfaces by adjusting the NC content and incorporating diisononyl phthalate were investigated. These modifications resulted in considerable improvements over the standard formulation. As an additional benefit, we demonstrate the capability of the coating to act as a thermally triggerable primer regarding debonding on demand of a topcoat system.

Source: Journal of Coatings Technology and Research

DOI: 10.1007/s11998-025-01116-5

Authors: Thomas Höfer, Gero Szabo, Albert Rössler, Oliver I. Strube

Institution: Universität Innsbruck

Language: English

Topic: Advanced Cellulose Research Studies

Subfield: Biomaterials

Field: Materials Science

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: hybrid

Estimated APC paid: $4,090