Analysis of Styrene-Butadiene Based Thermoplastic Magnetorheological Elastomers with Surface-Treated Iron Particles
<p>(<b>a</b>) Warm-pressing of the MRE samples, (<b>b</b>) pre-structuring the MRE sample under magnetic field H, and (<b>c</b>) CPI alignment in the TPE-based MR elastomer.</p> "> Figure 2
<p>(<b>a</b>) Sample preparation in the dynamic mechanical analyzer. (<b>b</b>) A sketch of the sample with applied magnets at the edges of the sample.</p> "> Figure 3
<p>(<b>a</b>) Calculated magnetic field intensity using 1 pair of permanent magnets and (<b>b</b>) the variability of the field across the MRE.</p> "> Figure 4
<p>(<b>a</b>) Static and (<b>b</b>) dynamic tests procedure to investigate the MR effect of SEBS-based composites.</p> "> Figure 5
<p>The influence of the CIP content on the MR effect (<b>a</b>) for the static test, a strain amplitude of 1% and pre-strain of 1.53% was used; (<b>b</b>) for the dynamic test, a strain amplitude of 0.66% was investigated. STL matrix with different concentrations of HS-type CIP; a constant frequency of 10 Hz and field strength of 0.54 T was selected for all tests.</p> "> Figure 6
<p>The torque at the end of the mixing process and density of the SEBS-based composite in relation to the volume concentration of CIP. The red line shows the calculated density based on the mixing rule. The blue line presents the measured density, and the stars are torque measured in Nm.</p> "> Figure 7
<p>The magnetization loop for (<b>a</b>) STL type styrene-ethylene-butadiene-styrene thermoplastic elastomers with HS filler content between 10 and 60 vol.-%, (<b>b</b>) 30 vol.-% filler content of three different CIP grades in STL type styrene-ethylene-butadiene-styrene thermoplastic elastomers.</p> "> Figure 8
<p>The saturation magnetization in relation to the CIP content and extrapolation of the results to 100% carbonyl iron.</p> "> Figure 9
<p>The influence of matrix material during static (<b>a</b>) and dynamic (<b>b</b>) strain on the MR effect. Composites STL30CC and STT30CC were used for this analysis. A constant strain amplitude of 1%was used for the static tests. A constant frequency of 10 Hz and field strength of 0.54 T were used for both test conditions.</p> "> Figure 10
<p>The effect of static (<b>a</b>) and dynamic (<b>b</b>) strain on MR effect. For this investigation, STL30HS, STL30CC, and STL30EW-I composites were used. All samples contain 30 vol.-% CIP in an STL matrix. A constant strain amplitude of 1%was used for the static tests. A constant frequency of 10 Hz and field strength of 0.54 T were used for both test conditions.</p> "> Figure A1
<p>Calculated magnetic field intensity using (<b>a</b>) 2 pairs of permanent magnets and (<b>b</b>) 3 pairs of permanent magnets.</p> ">
Abstract
:1. Introduction
2. Materials and Methods
3. Results
3.1. Effect of CIP Concentration
3.2. Flow Behavior at Meting Temperature of TPE Composites
3.3. Magnetization Saturation of the CIPs
3.4. Effect of the Matrix Material
3.5. Effect of the CIP Surface Treatment
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Data Availability Statement
Conflicts of Interest
Appendix A
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TF1 STL | TF1 STT | |
---|---|---|
Density (g/cm3) | 0.87 | 0.89 |
Hardness (Shore A) | 7 | 15 |
Material Property | HS | CC | EW-I |
---|---|---|---|
Density (g/cm3) | 7.73 | 7.89 | 7.58 |
d50 (µm) | 1.9 | 4.7 | 3.4 |
Surface treatment | No | SiO2 | SiO2 + phosphate |
Complex Viscosity at 170 °C (Pas) | Torque at the End of Mixing 170° (Nm) | |
---|---|---|
STT30HS | 184 | 0.1 ± 0.1 |
STL30HS | 30,000 | 1.6 ± 0.2 |
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Tagliabue, A.; Eblagon, F.; Clemens, F. Analysis of Styrene-Butadiene Based Thermoplastic Magnetorheological Elastomers with Surface-Treated Iron Particles. Polymers 2021, 13, 1597. https://doi.org/10.3390/polym13101597
Tagliabue A, Eblagon F, Clemens F. Analysis of Styrene-Butadiene Based Thermoplastic Magnetorheological Elastomers with Surface-Treated Iron Particles. Polymers. 2021; 13(10):1597. https://doi.org/10.3390/polym13101597
Chicago/Turabian StyleTagliabue, Arturo, Fernando Eblagon, and Frank Clemens. 2021. "Analysis of Styrene-Butadiene Based Thermoplastic Magnetorheological Elastomers with Surface-Treated Iron Particles" Polymers 13, no. 10: 1597. https://doi.org/10.3390/polym13101597
APA StyleTagliabue, A., Eblagon, F., & Clemens, F. (2021). Analysis of Styrene-Butadiene Based Thermoplastic Magnetorheological Elastomers with Surface-Treated Iron Particles. Polymers, 13(10), 1597. https://doi.org/10.3390/polym13101597