Tensile Properties of Manila Hemp Fabric Reinforced Cross-Ply "Green" Composites
Tensile Properties of Manila Hemp Fabric Reinforced Cross-Ply "Green" Composites
复制标题
马尼拉麻织物增强交叉层“绿色”复合材料的拉伸性能
DOI：
10.2472/jsms.52.916
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
Hideyuki Tanaka
中科院分区：
文献类型：
--
作者：
S. Ochi;H. Takagi;Hideyuki Tanaka
研究了马尼拉麻织物增强正交铺层“绿色”复合材料的拉伸性能。以机织马尼拉麻纤维为增强体，淀粉基乳液型生物可降解聚合物为基体，制备了复合材料。结果表明，随着纤维含量的增加，复合材料的抗弯强度增加。然而，拉伸强度随着纤维含量增加，直到接近50质量%，然后趋于稳定。拉伸试验结果表明，随着纤维含量的增加，0°层板的最大拉伸力减小。这种对纤维含量的依赖性是由于在热压过程中引入的纤维损伤引起的纤维强度的降低。为了避免沿加载方向排列的纤维的损伤，采用麻纤维作经向，棉纱作纬向的方法生产纤维片材。由于使用了棉纬纱，正交铺层“绿色”复合材料的拉伸强度从153 MPa提高到188 MPa。
This paper deals with the tensile properties of Manila hemp fabric reinforced cross-ply “green” composites. The composites were made from woven Manila hemp fibers as the reinforcement and starch-based emulsion-type biodegradable polymer as the matrix. Experimental results showed that their flexural strength increased with increasing the fiber content. However, the tensile strength increased with the fiber content until nearly 50 mass% and leveled off thereafter. We found from the result of tensile tests that maximum tensile force of 0° ply sheets decreased with increasing the fiber content. This dependence on the fiber content is due to the decrease in the fiber strength caused by fiber's damages introduced during hot-pressing. In order to avoid the damage of fibers aligned in loading direction, fiber sheets were produced by using hemp fibers for warp and cotton threads for weft. As a result of using the cotton weft, the tensile strength of cross-ply “green” composites increased from 153MPa to 188MPa.