The invention relates to a preparation method of a tannic acid curing chitosan microsphere heavy metal ion adsorbent, comprising the following steps of dissolving chitosan into an acetate aqueous solution, adding PEG (Polyethylene Glycol), stirring, completely dissolving, and then adding liquid paraffin...
Tannic acid is mainly used as dyeing mordant and also used for the preparation of gallic acid, gallic acid pyrophosphate. It can also be used for making leather tanning agents, rubber coagulant, proteins and alkaloids precipitant as well as the reagent for the determination of beryllium, aluminum...
The process comprises 4 stages: a) preparation of the reducing agent solution, taken from the tannins group and preferably tannic acid; b) preparation of a solution of soluble silver salts; c) reaction and, d) liquid-solid separation; the particle size is determined by the nature of the red...
The objective of this study was to develop an effective, potential wound dressing consisting of a blended hydrogel of polyvinyl alcohol (PVA) and tannic acid (TA). PVA is known for its biocompatibility and hydrophilicity, and TA is known for being a natural compound which can serve as a cros...
An effective tannic acid-incorporated polyvinylpyrrolidone/polyvinyl alcohol composite hydrogel with high-potential sorption capacity was developed for the removal of copper from aqueous solution. The composite hydrogel exhibited pH-dependent swelling, i
The invention discloses a preparation method of a poly(12-hydroxystearate) grafted tannic acid compatilizer. The method comprises the following steps: weighing certain amounts of 12-hydroxystearic acid, a toluene solvent and a proper amount of acid catalyst, pouring into a three-neck flask, ...
Tannic acid,an environmentally-friendly organic corrosion inhibitor,was used to modify UV-curable coating.The composition and preparation process of the coating were introduced.The effects of tannic acid dosage and modification methods(including pre-polymerization and blending) on the coating performance we...
A new conception of burns has been brought about as a result of their treatment by the tannic acid-silver nitrate method.1 This treatment appears to change the lesion into one comparable to a surgical wound. It is this induced change, by the application of tannic acid and silver nitrate, ...
The preparation of colloidal gold particles using tannic acid as an additional reducing agent]
In this study, we report the preparation of poly(tannic acid) (p(TA)) particles by crosslinking with glycerol diglycidyl ether (GDE) and trimethylolpropane triglycidyl ether (TMPGDE). The p(TA) particles are negatively charged as obtained by the zeta potential measurements, − 27 mV. P(TA...