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OALib Journal期刊
ISSN: 2333-9721
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基于弹性胶泥的新型高性能可压缩磁流变液
Keywords: 有机高分子材料,流变弹性胶泥,抗沉降,可压缩,磁流变液,弹性胶泥
Abstract:
？使用基于高粘度(≥200pas)线性聚硅氧烷的弹性胶泥作为磁流变液的载体液,研制了一类主要用于重型设备减振的新型磁流变材料——磁流变弹性胶泥。合成了三种粘度的弹性胶泥,并制备了相应的磁流变弹性胶泥样品。用傅立叶变换红外光谱技术对弹性胶泥样品进行了检测,并研究了磁流变弹性胶泥的可压缩性。结果表明,所研制的磁流变弹性胶泥在30d观测期内无明显沉降,表现出优异的磁流变效应(磁通密度为0.54t时基于800pas,60%质量分数样品的剪切屈服应力约为120kpa,零场时的15.4倍,甚至在高磁场下超过了流变化的初测试极限)。在流变曲线上首次发现一种特殊的“v形槽磁流变效应”,从弹性胶泥特殊螺旋高分子链结构角度分析了其机理及其对磁流变弹性胶泥性能的影响。
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