【摘要】 研究添加剂对电流变液体 (ER液体 )剪切应力的影响 ,以求提高ER液体的性能。应用德国RV2 0型电流变仪对以琼脂包覆聚苯胺为分散相 ,二甲基硅油为分散介质 ,单硬脂酸甘油酯 (T1)、季戊四醇 (T2 )和丙三醇 (T3)等为添加剂 (质量分数为 3% )配制成的ER液体进行测试。结果表明 ,三种添加剂均提高ER液体的剪切应力。在相同的 4kV/mm的电场和低剪切速率下 ,无添加剂ER液体的剪切应力为 80 0Pa ,加T1的为 2 30 0Pa ,且显著提高了悬浮液的稳定性 ;加T2的为 112 0Pa;加T3的为 45 0 0Pa。说明对一定类型的ER液体加适宜、适量的添加剂能有效地提高其性能。更多还原

【Abstract】 This thesis studies the influences of a variety of additives such as glycerol monostearate(T1),pentaerythritol (T2) and glycerol(T3) on the shear stress of electrorheological fluid(ER fluid) made by dispersing 3%(mass percent) additive and polyaniline particles coated by agar in silicone oil.The result shows that suitable additive improves the performance of ER fluid.When the electric field was strengthened to 4 kV/mm under the same low shear rate,the shear stress of the ER fluid without additive was 800 Pa,while the shear stress of the ER fluid with T1 was 2300 Pa,1120 Pa with T2 and 4500 Pa with T3.The result also demonstrates that T1 contributes to a considerable increase in the stability of ER fluid.It is concluded that there will be a significant improvement in the property of ER fluid by dispersing appropriate type and amount of additive to a certain ER fluid.更多还原