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. 2018 Jan 16;18(1):257. doi: 10.3390/s18010257

Figure 8.

Figure 8

Time dependence of the volume deformation of ferrogels in the uniform magnetic field 0.420 T. (a) FG-1 series, (b) FG-2 series, (c) FG-3 series and (d) FG-4 series. Lines are for eye-guide only. FG-1 series filled with magnetite if the thickener was guar gum and FG-2 if the thickener was xanthan gum, filled with strontium hexaferrite FG-3 (thickener–guar gum) and FG-4 (thickener–xanthan gum). Weight fraction ranges of magnetic particles were 2.59–5.20 wt % for FG-1, 0.77–3.19 wt % for FG-2, 1.31–3.70 wt % for FG-3 and 0.77–3.33 wt % for FG-4. The legend of the plot gives the concentration of AAm in the synthesis of ferrogels, which determines the Young modulus.