Franciszczak Piotr, Kovalovs Andrejs, Kwiatkowska Magdalena
Department of Machines Construction and Materials, Faculty of Marine Engineering, Maritime University of Szczecin, Willowa Street 2, 71-650 Szczecin, Poland.
Institute of High-Performance Materials and Structures, Faculty of Civil and Mechanical Engineering, Riga Technical University, Kipsalas Street 6A, LV-1048 Riga, Latvia.
Materials (Basel). 2025 Mar 11;18(6):1239. doi: 10.3390/ma18061239.
Wood-polymer composites and composites reinforced with natural and man-made cellulose fibres are being extensively used in the automotive and building industries. The main shortcoming of the former is their low-impact resistance and brittleness. The relatively high cost of natural and cellulose fibres is the limitation of the latter. This research uses a hybrid combination of wood flour and short man-made cellulose fibres to develop polypropylene composites for injection moulding that excel in mechanical characteristics and have low material cost. Both reinforcements are of wood origin. The synergistic hybrid effect of this combination of reinforcements helps to achieve their mechanical performance superior to that of wood-polymer composites at preserved low cost. The proposed Response Surface Methodology enables the calculation of necessary weight fractions of two reinforcements to achieve desired mechanical properties like strength, tensile, flexural modulus, and impact resistance.
木塑复合材料以及用天然和人造纤维素纤维增强的复合材料正在汽车和建筑行业中得到广泛应用。前者的主要缺点是抗冲击性低和脆性大。天然纤维和纤维素纤维相对较高的成本是后者的限制因素。本研究采用木粉和短人造纤维素纤维的混合组合来开发用于注塑成型的聚丙烯复合材料，这种复合材料在机械性能方面表现出色且材料成本低。两种增强材料均源自木材。这种增强材料组合的协同混合效应有助于在保持低成本的情况下实现优于木塑复合材料的机械性能。所提出的响应面方法能够计算两种增强材料的必要重量分数，以实现所需的机械性能，如强度、拉伸、弯曲模量和抗冲击性。
