CAJ | 학술논문

分别以羰基铁粉和羰基镍粉为磁性颗粒制备了不同组分的磁流变弹性体,分析了材料组分、外加磁场等对材料力学性能的影响.结果表明,磁流变弹性体的磁致弹性模量随磁性颗粒含量的增大而增大.在低磁场条件下,磁流变弹性体的磁致弹性模量随磁场的增强而迅速上升,当磁场较高时,磁致弹性模量增加趋势减缓直至饱和;在相同的质量含量条件下,以羰基镍粉为填充物的磁致弹性模量要低于以羰基铁粉为填充物的磁致弹性模量,且随着磁场的增强,二者磁致弹性模量的差值增加;磁流变弹性体的弹性模量随增塑剂含量的增加而减小,磁致弹性模量随增塑剂含量的增加而增加.
분별이탄기철분화탄기얼분위자성과립제비료불동조분적자류변탄성체,분석료재료조분、외가자장등대재료역학성능적영향.결과표명,자류변탄성체적자치탄성모량수자성과립함량적증대이증대.재저자장조건하,자류변탄성체적자치탄성모량수자장적증강이신속상승,당자장교고시,자치탄성모량증가추세감완직지포화;재상동적질량함량조건하,이탄기얼분위전충물적자치탄성모량요저우이탄기철분위전충물적자치탄성모량,차수착자장적증강,이자자치탄성모량적차치증가;자류변탄성체적탄성모량수증소제함량적증가이감소,자치탄성모량수증소제함량적증가이증가.
With carbonyl ironand nickel powders respectively, magnetorheological elastomer of different components has been prepared, and the factors affecting the mechanical properties of magnetorheological elastomer have been studied. The results show that the field-induced elastic modulus of magnetorheological elastomer increases with the content of magnetic particles; under lower magnetic field, the field-induced elastic modulus increases rapidly with the rising of magnetic field strength, but under higher magnetic field, the increasing trend slows down and eventually to saturation; considering the influence of filler on the mechanical properties, carbonyl nickel powders was worse than carbonyl iron powders in the same weight percentage, and this different value increases with the rising of magnetic field strength; the field-induced elastic modulus increases with increasing plasticizer content, but the elastic modulus decreases with increasing plasticizer content.