剪切增稠
- 网络Shear-thickening;shear thickening;STF
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特拉华大学的研究人员们几乎在十年前就研制出了用于制作液体装甲的剪切增稠液体。
Researchers at the University of Delaware developed shear-thickening fluids for use in liquid armour almost ten years ago .
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而SD体系表现出剪切增稠行为,呈现负触变性。
TY system showed shear-thinning and SD system showed shear-thickening .
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剪切增稠流体(STF)属于非牛顿型流体,在常态下呈现浓缩的胶质悬浮分散液状态。
Shear thickening fluid ( STF ) is a kind of non-Newtonian fluids , normally being concentrated colloidal suspension .
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基于幂律函数和Navier-Stokes方程,推导了剪切增稠液阻尼器行为的两种准静态模型:轴对称模型和平行平板模型。
Based on the power law function and Navier-Stokes equation , two quasi-static models , axisymmetric model and parallel plate model , for STF damper were derivated .
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有的HAGS具有剪切增稠现象。
Most of the HAGS is shear thinning and some HAGS is shear thicking .
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流变性能分析表明,SiO2/PEG200体系具有良好的剪切增稠性能,SiO2质量分数、粒径、温度以及制备工艺对流变性能均有不同程度的影响。
Rheological behavior showed SiO2 / PEG200 had good performance of shear thickening . Silica mass fraction , particle size , temperature and preparation process influenced the rheological behavior with different degree .
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介绍了剪切增稠液体(STF)的特点及其在动态和稳态剪切应力下的流变行为;
The properties of shear Thickening Fluid ( STF ) properties and it 's rheological properties in the dynamic and steady stress were introduced .
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在此基础上,将PPG-STF与竹纤维和PP熔融共混,制备了剪切增稠流体增韧的竹塑复合材料,考察了PPG-STF和竹纤维用量对竹塑复合材料性能的影响。
On the above basis , bamboo plastic composites , toughen by PPG-STF , were prepared through melt blending of PPG-STF with PP and bamboo fibre .
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然后,采用密炼机将PPG-STF与PP进行熔融共混,制备了剪切增稠流体增韧聚丙烯(PP/PPG-STF),研究了PPG-STF对PP/PPG-STF力学性能、结晶性能等方面的影响。
Then , PPG-STF toughened PP ( PP / PPG-STF ) was prepared via melt blending of PPG-STF with PP in an internal mixer . The mechanical properties , rheological properties and crystallization behavior of PP / PPG-STF were investigated .
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盐浓度对交联聚合物溶液剪切增稠现象的影响
Influence of salt concentration on shear thickening properties of LPS
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剪切增稠流体的制备及其在软体防刺材料中的应用研究
Preparation of Shear Thickening Fluid and Its Application on Soft Stab-Resistant Body Armor
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提出了基于流体动力学的简化模型,利用静水压力和粘性耗散力的表达式阐明了初始扰动的消失和剪切增稠效应的关系。
The expressions of hydrostatic force and viscous dissipative force were employed to clarify the relationship between the hole disappearance phenomen and shear thickening effect .
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超细SiO2/聚乙二醇(PEG200)分散体系具有剪切变稀-增稠的流变现象,在新型软体装甲材料中具有巨大的应用潜力。
The suspension of ultra-fine silica ( SiO2 ) / PEG ( 200 ) has shear-thinning and shear-thickening phenomena , so it has a great potential application as the soft amour materials .
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首先,选取一个范围内一系列的Reynolds数,100≤Re≤5000,通过纵向比较来分析剪切变稀流和剪切增稠流流动状况随Reynolds数的变化。
Firstly , selecting a range of Reynolds number from 100 to 5000 . Then we can compare and analysis flow phenomena of shear thinning fluids and shear thickening fluids when Reynolds number increases .
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实验结果表明,该体系具有剪切变稀和可逆的剪切增稠现象。
The system shows shear thinning and reversible shear thickening behavior .
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聚合物溶液渗流时,当渗流速度超过临界速度后,其流变性由剪切变稀型转变为剪切增稠型,即表现为双幂律指数特征(又称粘弹性)。
During the seepage flow of polymer solution , when seepage flow rate surpass the critical rate , the rheological property changes from shear thinning type to shear thickening type , that is it shows double power law exponent characteristics ( viscoelasticity ) .
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实验发现聚合物溶液在低流速下,表现剪切变稀,超过一定流速后,表现为剪切增稠。有效粘度和弹性粘度随着剪切速率和疏水基含量的增大而增大。
The polymer solution was manifested to show the property of shear thinning at low flow rate and shear thickening if the flow rate exceeded a point .