Data for: Performance properties of plywood composites reinforced with carbon fibers

Uploaded data presents results of physical and mechanical properties of layered wood composite reinforced with carbon fiber where the MUF resins were used as a binder. Hypothesis of the study assumes that addition of carbon fibers to wood-layer panels bonded with MUF resin improves mechanical and physical properties of the panels and that orientation of CF in the composite panels affects mechanical and physical properties of the panel. The investigation included 5 variants: PE - Parallel structure/ external system; PI - Parallel structure/ internal system; CE - Cross structure/ external system; CI - Cross structure/ internal system, and RE - Reference plywood (industrial type). The following mechanical properties of manufactured composites were tested: modulus of rapture (MOR) and modulus of elasticity (MOE) were tested based on the EN 310 standard; internal bound (IB) according to EN 319 standard; screw withdrawal strength (SH) according to EN 320 standard, and physical properties of manufactured composites: thickness swelling after 2 and 24 hours of soaking in water; water absorption after 2 and 24 hours of soaking in water. Additionally cutting resistance was tested. Each test was repeated at least 10 times. Results showed that reinforcing plywood panels with carbon fibers increased both MOR and MOE. The cutting resistance showed better results for composite panels with CF in a perpendicular orientation. Moreover, the water uptake and thickness swelling after 24 hours showed better results for fibers in the core layer, either parallel or perpendicular.本上传数据集展示了以蜜胺脲醛树脂（MUF resin）作为黏合剂的碳纤维（carbon fiber）增强层状木质复合材料的物理与力学性能测试结果。 本研究的核心假设为：在以MUF树脂胶合的木质层合板中添加碳纤维，可有效提升板材的力学与物理综合性能；且碳纤维在复合材料板内的排布方向，会对板材的力学及物理性能产生显著影响。 本次研究共设置5组实验组：PE为平行结构/外系统；PI为平行结构/内系统；CE为交叉结构/外系统；CI为交叉结构/内系统；RE为工业级参照胶合板。 对制备得到的复合材料开展了以下性能测试：依据EN 310标准测试弯曲断裂模量（modulus of rapture, MOR）与弹性模量（modulus of elasticity, MOE）；依据EN 319标准测试内结合强度（internal bound, IB）；依据EN 320标准测试螺钉拔出力（screw withdrawal strength, SH）；物理性能测试则涵盖：板材在水中浸泡2小时与24小时后的厚度膨胀率，以及对应浸泡时长的吸水率。此外还额外测试了板材的抗切割性能。所有测试均至少重复10次。 测试结果表明：采用碳纤维增强胶合板可同时提升板材的MOR与MOE值；碳纤维排布方向垂直的复合材料板抗切割性能更优异。此外，当碳纤维位于板材芯层时（无论排布方向为平行或垂直），其24小时吸水率与厚度膨胀率表现更佳。