Valenzuela Expósito Juan José, Picazo Camilo Elena, Perea Toledo Griselda Elisabeth, Corpas Iglesias Francisco Antonio
Higher Polytechnic School of Linares, University of Jaén, 23700 Linares, Spain.
Materials (Basel). 2025 Jul 10;18(14):3258. doi: 10.3390/ma18143258.
This study presents the development of particleboards made from olive tree pruning (OTP) residues and truck industry by-products (RCM), using PUR resin as a binder. Five formulations with different OTP/RCM ratios were designed and physical, thermal, mechanical, chemical and microstructural properties were evaluated. The results showed that increasing the RCM content improves the dimensional stability, reduces water absorption and swelling and decreases thermal conductivity, reaching 0.061 W/mK. At the mechanical level, MOR, MOE and IB values of 7.11, 630 and 0.134 MPa, respectively, were obtained. A higher OTP content allows a reduction in the density of the particleboard (752.67 kg/m) due to the granulometry of the material. FTIR and SEM analyses confirmed the good integration of the materials with the resin, highlighting a lower porosity and higher compaction in formulations with a high RCM content. These results demonstrate that the combination of agricultural and industrial by-products is feasible to manufacture a sustainable particleboard with customizable properties, promoting the circular economy and reducing the dependence on virgin raw materials in the construction sector.
本研究介绍了以橄榄树修剪废弃物（OTP）和卡车工业副产品（RCM）为原料，使用聚氨酯（PUR）树脂作为粘合剂制备刨花板的过程。设计了五种不同OTP/RCM比例的配方，并对其物理、热、机械、化学和微观结构性能进行了评估。结果表明，增加RCM含量可提高尺寸稳定性，降低吸水率和膨胀率，并降低热导率，达到0.061W/mK。在机械性能方面，分别获得了7.11、630和0.134MPa的抗弯强度（MOR）、弹性模量（MOE）和内结合强度（IB）值。由于材料的粒度，较高的OTP含量可降低刨花板的密度（752.67kg/m³）。傅里叶变换红外光谱（FTIR）和扫描电子显微镜（SEM）分析证实了材料与树脂的良好结合，突出了高RCM含量配方中较低的孔隙率和较高的压实度。这些结果表明，农业和工业副产品的组合可用于制造具有可定制性能的可持续刨花板，促进循环经济并减少建筑行业对原生原材料的依赖。
