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Basalt-Fiber-Reinforced Polyvinyl Acetate Resin: A Coating for Ductile Plywood Panels

1
Department of Wood Science and Technology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
2
Department of Forest Products, Faculty of Forestry, Kasetsart University, 50 Ngamwongwan Rd, Lad Yao, Chatuchak, Bangkok 10900, Thailand
*
Author to whom correspondence should be addressed.
Materials 2020, 13(1), 49; https://doi.org/10.3390/ma13010049
Received: 14 November 2019 / Revised: 10 December 2019 / Accepted: 17 December 2019 / Published: 20 December 2019
The aim of this study was to create a reinforced composite wood-based panel that would be leaned towards the environment Plywood was used as a core material and fiber-reinforced polymer was used as a reinforcement. Conventional resin for the fiber-reinforced polymer was substituted with polyvinyl acetate (PVAC), which has several advantages, such as a lower price, easier handling, and better degradability. The second chosen component, basalt fiber, is cost attractive and environmentally friendly. The combination of one and two layers of fabric with three fiber fractions and 4 mm thick plywood was investigated. The best results were achieved with two layers of fabric and the highest fiber fraction. The improvements of the ultimate bending load and bending stiffness of the plywood in the perpendicular direction were 305% and 325%, respectively. The ultimate load and stiffness of the parallel direction were improved by 31% and 35%, respectively. However, specimens always failed in the compressional zone. The highest reinforcing effect was found with the impact test: The energy required to fracture specimens increased by 4213% and 6150% for one and two layers of fabric, respectively. In conclusion, specimens exhibited high ductility due to the PVAC and basalt fiber. The amount of work and energy required to cause fractures was extensive. View Full-Text
Keywords: basalt fiber; FRP; plywood; reinforcement; sandwich panels; layered structures basalt fiber; FRP; plywood; reinforcement; sandwich panels; layered structures
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MDPI and ACS Style

Kramár, S.; Trcala, M.; Chitbanyong, K.; Král, P.; Puangsin, B. Basalt-Fiber-Reinforced Polyvinyl Acetate Resin: A Coating for Ductile Plywood Panels. Materials 2020, 13, 49.

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