With increasing content of the fillers, the notched impact strength and the tensile strength of PVC-matrix composites improved simultaneously. 随着复合粒子用量的增加,复合材料的强度和韧性同时提高,复合粒子高含量时,复合材料的拉伸强度稍有下降。
The results showed that when the dosage of BR increased, the notched impact strength of simple blends and dynamically vulcanized blends were all enhanced greatly. Meanwhile the tensile strength, hardness, Vicat softening point and melt index decreased. 研究结果表明,无论是简单共混还是动态硫化共混,橡胶含量的增加都使共混体系的冲击强度提高,但拉伸强度、硬度、耐热性及流动性下降。
The results showed that the use of PP-g-MAH improved the notched impact strength, bending strength and tensile strength of the composite, and PP-g-MAH reacted with CaCO_3, resulted in reactive compatibilization. 结果表明,PPgMAH对iPP/CaCO3复合物的缺口冲击强度、弯曲强度和拉伸强度均有提高;PPgMAH与CaCO3反应形成PPgMAH的钙盐,实现反应性增容。
On the basis of the knowledge of these stress redistributions, the tensile failure mechanism and strengths of notched cross-ply laminates were studied by using a micro-statistical fracture theory. Consequently, the relation between residual tensile strength and interfacial shear strength was obtained quantitatively. 在此基础上,采用细观统计破坏理论,研究了割口正交叠层板的拉伸破坏机理和强度,定量获得了残余拉伸强度与界面剪切强度的关系,所得结果与现有实验吻合较好。
Compared with one-step processing method, the notched Charpy impact strength of the blend by two-step processing method increased about 60%, and the tensile strength decreased by 10%. 两步法比一步法改性的复合体系的冲击强度增加60%左右,而拉伸强度降低了10%。
The effecs of the tensile rate, bending speed and notched residual breadth of the sample on the mechanical properties, such as tensile, bending and impact strength, of HDPE, HDPE/ elastomer and HDPE/ E-TMB at 23 ℃ were studied. 于23℃时,研究了拉伸、弯曲速度及试样缺口剩余宽度对高密度聚乙烯(HDPE)、HDPE/弹性体、HDPE/E型增韧母料(E-TMB)的拉伸、弯曲及冲击强度等力学性能的影响。