Potassium hydroxide

Cobalt nitrate hexahydrate (Co(NO₃)₂·6H₂O), cetyltrimethylammonium bromide (CTAB), potassium hydroxide (KOH) and ferric chloride hexahydrate (FeCl₃·6H₂O) were provided by Tianjin Damao Chemical Reagent corporation. Tannic acid (TA) and sodium borohydride (NaBH₄) were purchased from Aladdin. Nafion solution (5 wt%) was purchased from the Aldrich corporation. All chemicals were used directly without further purification. In addition to the above, carbon paper was purchased from the Jinglong Special Carbon Company, Beijing, China.

This experiment used commercially available AZ31 magnesium alloy as the raw material, and the size of the disk was Φ30 mm × 3 mm. Sodium silicate (Na₂SiO₃), sodium chloride (NaCl), and potassium hydroxide (KOH) were purchased from the Tianjin Damao Chemical Reagent Factory (Tianjin, China). Sodium fluoride (NaF) was purchased from the Tianjin Fuchen Chemical Reagent Factory (Tianjin, China). All reagents were of analytical purity (AR). Defatted sheep blood, belonging to non-Newtonian fluids, was purchased from Henan Yuechi Biotechnology Co. (Henan, China), harvested in an aseptic environment, and stored in freshness, which was consistent with the fresh blood appearing in the surgical environment. Three types of commercially disposable sterile rubber surgical gloves were used in the friction experiments, all of which conformed to the GB7543 product standards and technical requirements and passed the product testing to ensure that the products were qualified and harmless. Glove A (branded Gaobang), glove B (branded Medispo), and glove C (branded Intco Canada Inc) were selected. These types of gloves are the most commonly used in medical treatments due to their ease of access in the market and their relatively low cost.

Potassium hydroxide (KOH) was purchased from the Tianjin Damao Chemical Reagent Factory, China. Hydrochloric acid (HCl) was provided by Sichuan Xilong Chemical Co. Ltd. of China. and phosphoric acid (H₃PO₄) was ordered by Tianjin Beilian Fine Co. Ltd. of China. Polypropylene was bought from Tianjin Bodi Chemical Co. Ltd. of China, Polyethylene glycol-800 (8P) was offered by Xinjiang Lanshan Tunhe Polyester Co. Ltd. of China and potassium bromide (KBr) was purchased from Shanghai Xinghuo Chemical Plant of China.