Noori, M., M. Momeni, and M. H. Moayed. "Inhibitive Assesment of Stearamide as a Corrosion Inhibitor for Mild Steel in HCl Solution." Alcohol 7.284.86 (2012): 83-2.
Stearamide, a long-chain fatty acid amide, has demonstrated significant efficacy as a corrosion inhibitor for mild steel in hydrochloric acid environments. Due to its water insolubility, its performance was evaluated by dissolving 10,000 ppm Stearamide in organic solvents-dimethyl sulfoxide (DMSO) and isopropyl alcohol-followed by pre-adsorption onto the metal surface before immersion in 0.1 M HCl. Electrochemical studies, including potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), and linear polarization resistance (LPR), confirmed its inhibitory action.
Stearamide functions as an adsorptive inhibitor by forming a protective layer on the steel surface, reducing anodic dissolution and suppressing the hydrogen evolution reaction. The optimal immersion time for achieving maximum inhibition efficiency was 15 minutes, yielding 90% inhibition efficiency in isopropyl alcohol and 83% in DMSO. EIS results further indicated that the protective film formed in isopropyl alcohol was five times thicker than that in DMSO, enhancing surface passivation. Additionally, isopropyl alcohol exhibited its own corrosion inhibition properties, and its combination with Stearamide produced a synergistic effect, with a calculated synergism parameter of 1.141.
These findings highlight Stearamide's potential as an effective corrosion inhibitor, particularly when combined with isopropyl alcohol. Its strong adsorption capability and synergistic effects make it a promising candidate for industrial applications in acid treatment and corrosion protection of steel structures.
Dhoni, R., M. Ginting, and I. Surya. "The presence of stearamide as a rubber chemical in silica loaded-styrene butadiene rubber: The curing properties." IOP Conference Series: Materials Science and Engineering. Vol. 1003. No. 1. IOP Publishing, 2020.
Stearamide has been identified as an effective curing accelerator in silica-loaded styrene-butadiene rubber (SBR) formulations, optimizing the vulcanization process by modifying key curing parameters. Research indicates that adding Stearamide in concentrations of 2-8 phr to silica-filled SBR significantly reduces scorch time and optimum curing time while increasing the cure rate index (CRI). The higher the Stearamide concentration, the greater the acceleration effect, making it a valuable additive in rubber processing.
The underlying mechanism of Stearamide's impact is attributed to its amine functionality, which chemically interacts with the SBR matrix and silica filler. This interaction enhances the crosslinking efficiency, thereby improving processing efficiency and reducing energy consumption in rubber manufacturing. The observed reduction in scorch time and curing time translates into improved productivity and better control over rubber processing conditions.
These findings highlight Stearamide's potential in the rubber industry, particularly in the production of high-performance elastomers. Its ability to enhance curing efficiency without compromising material properties makes it an attractive alternative to traditional accelerators. As a curative additive, Stearamide offers a sustainable and effective solution for improving the processing characteristics of silica-loaded SBR, reinforcing its significance in advanced rubber formulations.
What is the CAS number for Stearamide?
The CAS number for Stearamide is 124-26-5.
What is the molecular weight of Stearamide?
The molecular weight of Stearamide is 283.49.
What is the IUPAC name of Stearamide?
The IUPAC name of Stearamide is Octadecanamide.
What is the molecular formula of Stearamide?
The molecular formula of Stearamide is C18H37NO.
What is the SMILES notation for Stearamide?
The SMILES notation for Stearamide is CCCCCCCCCCCCCCCCCC(=O)N.
What is the InChI key for Stearamide?
The InChI key for Stearamide is LYRFLYHAGKPMFH-UHFFFAOYSA-N.
What is the boiling point of Stearamide?
The boiling point of Stearamide is 250-251 °C at 12mmHg.
What is the melting point of Stearamide?
The melting point of Stearamide is 98-102 °C.
What is the density of Stearamide?
The density of Stearamide is 0.927g/ml.
What are the typical applications of Stearamide?
Stearamide is used as a dispersing agent, emulsifying agent, and lubricant.
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