Effect of molecular weight on inhibition performance of modified polyethyleneimine as polymer corrosion inhibitor for carbon steel in neutral medium

Chen, Tianqi; Chen, Mengjin; Fu, Chaoyang

doi:10.1002/app.51922

Cited by 5 publications

(1 citation statement)

References 47 publications

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“…Owing to the synergetic effect from nitrogen atoms and the phosphorus groups, P-29 can be used as corrosion inhibitor in neutral medium for mild steel. Subsequently, they investigated the influence of molecular weights of PEPA on the anti-corrosion property [77]. Generally, three kinds of PEI with molecular weight of 600, 1800, and 10,000 were used.…”

Section: Polyethyleneiminementioning

confidence: 99%

Recent Progress of Polymeric Corrosion Inhibitor: Structure and Application

et al. 2023

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An anti-corrosion inhibitor is one of the most useful methods to prevent metal corrosion toward different media. In comparison with small molecular inhibitors, a polymeric inhibitor can integrate more adsorption groups and generate a synergetic effect, which has been widely used in industry and become a hot topic in academic research. Generally, both natural polymer-based inhibitors and synthetic polymeric inhibitors have been developed. Herein, we summarize the recent progress of polymeric inhibitors during the last decade, especially the structure design and application of synthetic polymeric inhibitor and related hybrid/composite.

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Section: Polyethyleneiminementioning

confidence: 99%

Recent Progress of Polymeric Corrosion Inhibitor: Structure and Application

et al. 2023

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Amphoteric ionic polymer large temperature difference retarder for long sealing section cementing low‐density cement slurry: Preparation, application, and working mechanism

Jinhua,

Junwei,

et al. 2024

J of Applied Polymer Sci

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In this study, a novel amphoteric ionic large temperature difference retarder (marked with CLL‐1) was prepared by using functional monomer through aqueous solution polymerization method. First, the chemical structure and molecular weight of retarder CLL‐1 were obtained, and then the thermal stability of retarder CLL‐1 was investigated at the temperature range of 40–400°C, and the result shows that the retarder CLL‐1 has well thermal stability, which could be used to control the thickening time of cement slurry at higher temperatures. Second, the influences of retarder CLL‐1 on the settlement stability of cement slurry were studied by the density difference at the temperature of 150, 120, 90, and 30°C, respectively. Third, the thickening time of cement slurry samples with different retarder CLL‐1 adding amount was studied at the temperature range of 80–180°C, and the results showed that the retarder CLL‐1 can adapt well to the working conditions of large temperature difference cementing operations. Simultaneously, the compressive strength of cement slurry with different retarder CLL‐1 adding amount was obtained. Finally, the working mechanism of retarder CLL‐1 at large temperature difference was revealed depends on the methods of x‐ray diffraction, scanning electron microscope, and TG.

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