Abstract
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.
Highlights
Plywood is a material that was used mostly in the past for aircraft, cars, and sports goods [1]
Plywood which is made of sustainable material [4] is better than fiber-reinforced polymer (FRP)
For plywood, the symmetrical composition should be maintained [32]. Both surfaces of plywood were covered with basalt fabric embedded in the polyvinyl acetate (PVAC) matrix
Summary
Plywood is a material that was used mostly in the past for aircraft, cars, and sports goods [1]. Environmental problems connected with FRP are gaining attention [3]. In this respect, plywood which is made of sustainable material [4] is better than FRP. Plywood which is made of sustainable material [4] is better than FRP The drawbacks of these materials could be lessened and plywood could be well reinforced if they are properly combined and modified into one composite material
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