Pandey Pankaj, Bajwa Dilpreet, Ulven Chad, Bajwa Sreekala
Department of Agricultural and Biosystems Engineering, North Dakota State University, Fargo, ND 58102, USA.
Department of Mechanical Engineering, North Dakota State University, Fargo, ND 58102, USA.
Materials (Basel). 2016 May 19;9(5):390. doi: 10.3390/ma9050390.
In this study, six combinations of flax, hemp, and glass fiber were investigated for a hybrid reinforcement system in a polyurethane (PU) composite. The natural fibers were combined with glass fibers in a PU composite in order to achieve a better mechanical reinforcement in the composite material. The effect of fiber hybridization in PU composites was evaluated through physical and mechanical properties such as water absorption (WA), specific gravity (SG), coefficient of linear thermal expansion (CLTE), flexural and compression properties, and hardness. The mechanical properties of hybridized samples showed mixed trends compared to the unhybridized samples, but hybridization with glass fiber reduced water absorption by 37% and 43% for flax and hemp-agave PU composites respectively.
在本研究中，对亚麻、大麻和玻璃纤维的六种组合进行了研究，以用于聚氨酯（PU）复合材料的混合增强体系。天然纤维与玻璃纤维在PU复合材料中结合，以便在复合材料中实现更好的机械增强效果。通过诸如吸水率（WA）、比重（SG）、线性热膨胀系数（CLTE）、弯曲和压缩性能以及硬度等物理和机械性能，评估了PU复合材料中纤维混杂的效果。与未混杂的样品相比，混杂样品的机械性能呈现出混合趋势，但对于亚麻和大麻-龙舌兰PU复合材料，与玻璃纤维的混杂分别使吸水率降低了37%和43%。
