五种植物纤维粉填充不饱和聚酯树脂复合材料的性能对比

Comparatively Study on Properties of Various Plant Fiber Powder Reinforced Unsaturated Polyester Resin Composites

以芝麻秸秆粉、水稻秸秆粉、玉米芯秆粉、菠萝叶粉、甘蔗渣粉五种不同植物纤维粉为填充体、不饱和聚酯树脂(UPR)为基体制作植物纤维粉/UPR复合材料,对比研究了秸秆种类对复合材料密度、力学性能及吸水性能的影响。结果表明,植物纤维粉粒径为100目、添加量为UPR用量的10%时,芝麻秸秆粉/UPR复合材料的综合力学性能最好,拉伸强度、弯曲强度和冲击强度分别为41.320 MPa、67.467 MPa和2.815 KJ/m^2,且每一浸泡阶段吸水率均最低。

Plant fier powder/unsaturated polyester resin(UPR) composites were prepared by using various plant fiber powders as filler and unsaturated polyester resin(UPR) as matrix. The effects of the straw type on the density, mechanical properties and water absorption of the composites were comparatively investigated. The results show that, when the particle size of the powder was 100 mesh, and the mass ratio of the powder to UPR was 10∶100, the sesame powder/UPR composite has the best comprehensive mechanical properties, the tensile, flexural and impact strengths are 41.320 MPa, 67.467 MPa and 2. 815 KJ/m^2, respectively, and the water uptake at each immersion stage is the least.