Betlej Izabela, Barlak Marek, Lipska Karolina, Boruszewski Piotr, Borysiuk Piotr
Institute of Wood Sciences and Furniture, Warsaw University of Life Sciences-SGGW, 159 Nowoursynowska St., 02-776 Warsaw, Poland.
Ion Beam Technology Division, Material Physics Department, National Centre for Nuclear Research Świerk, 7 Sołtana St., 05-400 Otwock, Poland.
Molecules. 2025 Apr 28;30(9):1948. doi: 10.3390/molecules30091948.
The new wood-plastic composites (WPC) biocomposites, a promising blend of poly(lactic acid) (PLA) and lignocellulosic fillers, are the subject of our study. We used bark and sawdust at 40, 50, and 60% as PLA fillers. The innovative use of ion implantation to modify the surface properties of the produced composites could have significant implications. Argon ions were used in three dosages (1 × 10, 1 × 10, and 1 × 10 cm) at an accelerating voltage of 60 kV. The modified composites were then analyzed for changes in surface wettability, surface energy, and color. Our findings demonstrate that the dosage of argon ion implantation and the filler used have a profound impact on the properties of the modified surfaces. In general, ion implantation enhances the surface wettability of composites and pure PLA, with the recorded relationships being more pronounced in composites containing higher proportions of lignocellulosic fillers. Furthermore, the implantation of ions on the surface of composites induces changes in their color, opening up new possibilities for the field of materials science.
新型木塑复合材料（WPC）生物复合材料是聚乳酸（PLA）与木质纤维素填料的一种有前景的混合物，是我们研究的主题。我们使用了40%、50%和60%的树皮和锯末作为PLA填料。创新性地使用离子注入来改变所制备复合材料的表面性能可能具有重大意义。在60 kV的加速电压下，使用了三种剂量（1×10、1×10和1×10 cm）的氩离子。然后对改性后的复合材料进行表面润湿性、表面能和颜色变化分析。我们的研究结果表明，氩离子注入剂量和所使用的填料对改性表面的性能有深远影响。一般来说，离子注入提高了复合材料和纯PLA的表面润湿性，在含有较高比例木质纤维素填料的复合材料中记录的关系更为明显。此外，在复合材料表面注入离子会导致其颜色发生变化，为材料科学领域开辟了新的可能性。
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