An increasing trend in electric conductivity was found with increasing the CPCNTs from 0.1 to 0.5 wt.% and reaching a maximum level at the 1 wt.% of CPCNTs in the hydrogel.
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Cottonseed-Derived Reusable Bio-Carbon Gel Ink for DIW Printing Soft Electronic Textiles.
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The sentences
As presented in Figure S11b (Supporting Information), with the increase in the addition of Fe 3+ content to 0.5 wt.%, the tensile strength of PA‐CPCNT‐Fe/PVA hydrogels gradually increased, while a decreasing trend was found on the contrary with a further increase of the Fe 3+ content to 1 wt.%.