基于弹性胶泥的新型高性能可压缩磁流变液

doi:10.11901/1005.3093.2014.025

材料研究学报

2014, Vol. 28

Issue (11): 821-827 DOI: 10.11901/1005.3093.2014.025

本期目录 | 过刊浏览

基于弹性胶泥的新型高性能可压缩磁流变液

谢磊¹,廖昌荣¹(

),周治江¹,曾智²,黎勇²,李祝强¹

1. 重庆大学光电技术及系统教育部重点实验室重庆 400044
2. 株洲时代新材料科技股份有限公司株洲 412007

Novel High Performance Compressible Magneto-rheological Fluids Based on Elastic Cement

Lei XIE¹,Changrong LIAO^1,^**(

),Zhijiang ZHOU¹,Zhi ZENG²,Yong LI²,Zhuqiang LI¹

1. Key Lab. of Opto-electronic Technology & Systems, Ministry of Education, Chongqing University,Chongqing, 400044
2. Zhuzhou Times New Material Technology Co., Ltd., Zhuzhou, 412007

引用本文:

谢磊,廖昌荣,周治江,曾智,黎勇,李祝强. 基于弹性胶泥的新型高性能可压缩磁流变液[J]. 材料研究学报, 2014, 28(11): 821-827.
Lei XIE, Changrong LIAO, Zhijiang ZHOU, Zhi ZENG, Yong LI, Zhuqiang LI. Novel High Performance Compressible Magneto-rheological Fluids Based on Elastic Cement[J]. Chinese Journal of Materials Research, 2014, 28(11): 821-827.

全文: PDF(2235 KB) HTML

摘要:

使用基于高粘度(≥200 Pas)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30 d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0.54 T时基于800 Pas, 60%质量分数样品的剪切屈服应力约为120 kPa, 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。

关键词 ：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：

A novel magneto-rheological (MR) material, i.e. MR elasticity cement (MREC), was proposed specific for vibration reduction of heavy equipments. High viscosity (≥200 Pas) polysiloxanes based elasticity cement (EC) was used as the carrier of Magneto-rheological fluid (MRF). Three MRECs were prepared from ECs with different viscosities. The prepared EC samples were characterized by an ATR-FTIR spectroscopy. The compressibility of MREC was also tested. The results show that no precipitation could be observed for the prepared MREC after 30 d storage; the MREC exhibited strong MR effect (shear stress of 800 Pas and 60% mass fraction based sample is about 120 kPa in a magnetic field of 0.54T, i.e. 15.4 times the off-state value, and even exceeds the shear stress limit of the rheometer under high magnetic field). Besides, a unique “V-slot MR effect” was first time found. The special helical molecule structure of EC was considered to be responsible for this effect and the unique performance of MRECs.

Key words： organic polymer materials, magneto-rheological elasticity cement anti-settling compressibility MR fluid elasticity cement

收稿日期: 2014-04-25

基金资助:* 国家科技支撑计划2012BAF06B04, 中央高校基本科研业务费CDJZR13120049, 重庆市基础与前沿研究计划CSTC2013JJB 60001和国家留学基金201306050092资助项目。

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https://www.cjmr.org/CN/10.11901/1005.3093.2014.025 或 https://www.cjmr.org/CN/Y2014/V28/I11/821

图1 磁流变弹性胶泥沉降的实验观察

图2 零场下磁流变弹性胶泥的光学显微镜观测图

图3 弹性胶泥(200-0%)的全反射傅立叶红外光谱图

图4 磁流变弹性胶泥微观结构示意图

图5 磁流变弹性胶泥(800-%s)的剪应力与磁场间关系

图6 磁流变弹性胶泥(500-60%)的流变曲线

图7 弹性胶泥(500-0%)与磁流变弹性胶泥(500-20%)的体积压缩曲线

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