| dc.description.abstract | Theain purpose of this research is to study the corrosion and anti-corrosion of the cold storage agent to the aluminum cold storage container in the cold chain technology. 15 wt% sodium chloride solution is a common cold storage agent, and aluminum foil (thickness 7μm) is often used as a cold storage bag container because it is a cheap and good heat transferaterial. Because the chloride salt solution is extremely corrosive to aluminumetal, once the aluminum cold storage bag is damaged by corrosion, it will cause cold storage failure and system pollution disasters and economic losses. In order to prevent this corrosion phenomenon, the cold storage systemust be protected from corrosion. The anti-corrosion strategy in this case adopts the anti-corrosionethod of corrosion inhibitor. The aluminum foil test pieces are immersed in pure-30、 -20, 0, 20, 40 and 60 °C 15 wt% sodium chloride solution cooling agent respectively, and 10-6M, 10-5M, 10-3M concentration of benzotriazole (BZ); tryptophan (TR); vanillin (VL) three kinds of green corrosion inhibitor cold storage agent for corrosion test, the test piece is soaked for 3, 5, 7, 14 and 21 days, take out the test piece, remove the surface After the corrosion product, the weight loss can be calculated, and the pitting depth of the surface can be observed, and theneasured by the open circuit potentialeasurement and the Tarver polarizationethod to evaluate the corrosion rate of the cool storage agent to the test piece, and the anode dynamic cycle polarizationethod can be obtained. The inhibition efficiency of corrosion inhibitors on pitting corrosion was investigated. Finally, electrochemical impedance spectroscopy was used to understand the corrosionechanism and corrosion inhibitionechanism of aluminum foil test pieces. | en_US |