Surface modification of basalt used for reinforcement of wood-based panels

• Published in: Progress in organic coatings Vol. 190; p. 108388
• Main Authors: Mayer, Aaron Kilian, Vellguth, Natalie, Brinker, Sascha, Sauerbier, Philipp, Mai, Carsten
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.05.2024
• Subjects: Basalt fibres; Coatings; Reinforcement; Ureido-silane; Reinforcement; Coatings; Basalt fibres; Ureido-silane
• ISSN: 0300-9440; 1873-331X
• DOI: 10.1016/j.porgcoat.2024.108388

Adding reticulated basalt fibres to wood-based panels as reinforcing materials can improve their strength-to-weight ratio and thus increase their material efficiency. This study investigates the effect of different surface modifications of basalt fibres on the adhesion with binders commonly used in the wood-based panel industry. The surface coatings used were an acrylate polymer, an ureido-silane and a combination of both in conjunction with urea-formaldehyde (UF), melamine-urea-formaldehyde (MUF), phenol-formaldehyde (PF), phenol-melamine-formaldehyde (PMF) and isocyanate-based prepolymer (pMDI) resins. The determination of the wide-width tensile strengths and peel resistance of a basalt plain weave showed that the combination coating increased the tensile strengths the most (107 kN m−1) and the adhesion with pMDI was the most effective (2.0 N mm−1). Scanning electron microscopy combined with energy-dispersive X-ray spectroscopy revealed that the higher strengths might be due to the quality of the coating. •Coatings can increase mechanical properties of woven basalt for reinforcement.•Acrylate in combination with pMDI result in the highest mechanical properties.•Low crimp is important when reinforcing wood-based panels.