The Application of Triazole in Metal Deactivators
In the complex system of lubricating oils, various additives work synergistically and play an indispensable role in ensuring the efficient operation of mechanical equipment. Among them, triazoles and their derivatives occupy a crucial position in the field of lubricating oil additives due to their unique chemical structures and properties.
Triazoles: Structural and Property Foundations for Applications
Triazole (1,2,4 - triazole) exhibits a five - membered heterocyclic compound structure, with its ring structure ingeniously constructed by nitrogen atoms. This unique atomic arrangement endows triazole with special chemical reactivity. Among its numerous derivatives, benzotriazole is particularly prominent. In terms of chemical properties, triazole has a certain degree of alkalinity, and the lone pair of electrons on the nitrogen atom enables it to participate in various chemical reactions. Its solubility in different solvents is moderate, a characteristic that provides convenient conditions for its application in the lubricating oil system. In the pharmaceutical field, triazole derivatives are often used to synthesize drug molecules with specific biological activities; in the pesticide field, it can serve as a key intermediate in the synthesis of pesticides. In materials science, some triazole derivatives can be used to prepare high - molecular materials with special properties. However, it is in the field of lubricating oil additives that the unique value of triazoles and their derivatives is truly demonstrated.
Mechanism of Action: Precise Inhibition of Metal Ion Catalysis
During the use of lubricating oils, metal ions are one of the "culprits" accelerating the oxidation of the oil. When metal equipment comes into contact with lubricating oil, trace ions on the metal surface gradually dissolve into the oil. These metal ions, such as copper and iron, have strong catalytic activity. They can cause the rapid decomposition of peroxides in the oil, thereby initiating and accelerating the chain - initiation and chain - propagation reactions of oil oxidation. The appearance of triazole is like pressing the "slow - down button" on this rapid oxidation process.
The nitrogen atoms in the triazole molecule have a rich electron cloud and can form stable coordination compounds with metal ions. Taking copper ions as an example, the triazole molecule undergoes a coordination reaction with copper ions through the lone pair of electrons on the nitrogen atom to form a stable ring structure. The formation of this coordination compound greatly reduces the activity of metal ions. The originally active metal ions are "trapped" in the coordination structure and can no longer efficiently catalyze the decomposition of peroxides, thus effectively inhibiting the oxidation process of the oil. In this way, triazole plays a key role in deactivating metals in lubricating oils, extending the service life of the lubricating oil and ensuring the stability of its lubricating properties.
Extensive Applications: Assisting Equipment Operation in Multiple Scenarios
In the field of lubricating oils, triazoles and their derivatives, as metal deactivators, are extremely widely used. In engine lubricating oils, their presence is of vital importance. During the operation of the engine, the internal metal components (such as pistons, crankshafts, etc.) come into frequent contact with the lubricating oil, and inevitably, metal ions dissolve into the oil. After adding triazole - based metal deactivators, it can effectively inhibit the oxidation - catalyzing effect of these metal ions on the lubricating oil, maintain the good performance of the lubricating oil, reduce wear and corrosion inside the engine, and improve the working efficiency and reliability of the engine. In industrial gear oils, triazole - based metal deactivators also play an important role. Industrial gears are under great pressure and friction during operation, and the oil temperature is relatively high, making it easier for metal ions to have an adverse impact on the oil. Triazole - based metal deactivators can stabilize the oil, ensuring that the gears can be well - lubricated under harsh working conditions, reducing gear wear and extending the service life of the gearbox. In addition to lubricating oils, triazole can also be used as a metal deactivator in fuel oils. During the storage and use of fuel, it comes into contact with metal containers and pipelines, and metal ions may trigger the oxidation and deterioration of the fuel. Triazole can inhibit the action of metal ions, ensure the quality and stability of the fuel, and reduce engine failures caused by fuel deterioration. Furthermore, in hydraulic oils, triazole - based metal deactivators help maintain the normal operation of the hydraulic system, preventing damage to hydraulic components and system failures caused by oil oxidation and metal corrosion.
Outstanding Characteristics: Superior Performance and Distinct Advantages
Super strong Corrosion Inhibition Ability
Triazole - based metal deactivators perform outstandingly in terms of corrosion inhibition. Through professional oxidation induction period tests, it can be found that its oxidation induction period can easily exceed 350 minutes, a figure far superior to that of traditional metal deactivators. In practical applications, this means that it can effectively inhibit metal corrosion for a longer time. Taking the copper strip corrosion test as an example, under the same test conditions, the degree of corrosion of the copper strip by the lubricating oil added with triazole - based metal deactivators is significantly lower than that of the lubricating oil without addition or added with traditional metal deactivators. This provides better protection for the metal components in mechanical equipment, reducing the maintenance and replacement costs caused by corrosion.
Good Oil Solubility
Triazole - based metal deactivators have good oil solubility, a characteristic that enables them to disperse rapidly and uniformly in lubricating oils. Whether in mineral - based lubricating oils or synthetic - based lubricating oils, triazole can fully mix with the oil to form a stable system. This good compatibility ensures that during the production and use of lubricating oils, triazole - based metal deactivators can always play their proper role, without problems such as precipitation and stratification, guaranteeing the consistency and stability of the lubricating oil's performance.
High Thermal Stability
Under high - temperature environments, the performance of many additives can be affected or even fail. However, triazole - based metal deactivators exhibit excellent thermal stability. When the lubricating oil is operating under high - temperature conditions, such as when the engine is running at high speed or industrial equipment is working under high load, the oil temperature will rise sharply. At this time, triazole - based metal deactivators can maintain the stability of their chemical structure, continue to play the role of inhibiting metal ions, effectively prevent the rapid oxidation and deterioration of the oil at high temperatures, and ensure that the lubricating oil can still provide reliable lubrication protection for the equipment in a high - temperature environment.
Significant Synergistic Effect
Triazole - based metal deactivators have an excellent compatibility and synergistic effect with other additives. When used together with antioxidants, it can produce a "1 + 1 > 2" effect. Antioxidants mainly inhibit oil oxidation by capturing free radicals, while triazole reduces the initiation of oxidation by inhibiting the catalytic action of metal ions. The two cooperate with each other to delay the oxidation process of the oil in an all - round way. When paired with acidic rust inhibitors, triazole - based metal deactivators can enhance the adsorption and film - forming effects of rust inhibitors on the metal surface, further improving the anti - rust protection ability of the metal. This synergistic effect makes triazole - based metal deactivators an indispensable part of the lubricating oil additive formula, enabling them to jointly construct an efficient lubrication protection system with other additives.
Development History and Future Trends
Looking back on the development history of triazoles in the field of lubricating oil additives, from the initial discovery of their certain metal deactivation properties to their gradual in - depth research and widespread application, it has gone through a process of continuous exploration and optimization. In the early days, due to technological and cognitive limitations, the application of triazoles in lubricating oils was relatively limited, and the effects were not ideal. With the continuous progress of chemical synthesis technology, people can synthesize more targeted and high - performance triazole derivatives, and their applications in lubricating oils have become increasingly widespread. At the same time, in - depth research on their mechanism of action has also provided theoretical support for optimizing formulas and improving performance. Looking to the future, with the increasingly stringent environmental requirements and the continuous improvement of mechanical equipment performance, the performance requirements for lubricating oil additives will also become higher and higher. Triazole - based metal deactivators are expected to develop in the direction of being more environmentally friendly, efficient, and multi - functional. On the one hand, researchers will be committed to developing more environmentally friendly synthesis processes to reduce pollutant emissions during production; on the other hand, through molecular design and modification, the metal deactivation performance of triazole derivatives will be further improved, enabling them to function under more complex working conditions. In addition, exploring the synergistic effects between triazole and other new additives and developing lubricating oil additive formulas with better comprehensive performance will also be one of the future research priorities.
The Price of Metal Deactivators
The price of Metal Deactivators depending on factors such as brand, specification, composition, and sales channels. If you are interested in Metal Deactivators, please feel free to contact us.
Supplier of Metal Deactivators
UNPChemicals is a professional supplier of high-quality and effective Metal Deactivators. We offer several remarkable products, namely Thiadiazole octyl mercaptan condensate DMTD-8,Thiadiazole tert-nonyl mercaptan condensate DMTD-9,Thiadiazole tert-dodecyl mercaptan condensate DMTD-12,Thiadiazole tert-dodecyl mercaptan condensate CSAIL T561,etc.
Thiadiazole octyl mercaptan condensate DMTD-8 is a liquid ash-free metal deactivator, which has extreme pressure and auxiliary antioxidant effects, and is widely used in various automotive and industrial lubricating oils and metal working fluids. At very low concentrations, it can effectively prevent the corrosion of active sulfur on copper and copper alloys, and its unique composition can also inhibit the corrosion of hydrogen sulfide.
Thiadiazole tert-nonyl mercaptan condensate, commercially known as DMTD-9, is an organosulfur compound carrying the CAS number 91648-65-6. As a lubricant, fuel or metalworking fluid additive, it demonstrates several key features that make it valuable in a variety of industrial and automotive applications.
Thiadiazole tert-dodecyl mercaptan condensate DMTD-12 is a valuable lubricant additive, known for its ashless, extreme pressure, and oxidation resistance properties. Its ability to act as a metal deactivator makes it an effective choice for preventing corrosion and enhancing the performance and protection offered by automotive and industrial lubricants and metalworking fluids.
Thiadiazole tert-dodecyl mercaptan condensate CSAIL T561 is a liquid ashless metal deactivator with extreme pressure and oxidation resistance effects. Used for various automotive and industrial lubricating oils and metalworking fluid. At very low concentration, it can effectively prevent the corrosion of active sulfur on copper and copper alloys.
Professional Lubricant Additive Manufacturer
UNPChemicals, aka Luoyang Pacific United Petrochemical Co., Ltd., focuses on the application and development of special lubricating grease additives such as MODTC, MODTP, molybdenum amide, thiadiazole metal deactivators, and phosphate esters. With nearly 30 products in seven series, including extreme pressure anti-wear additives and special grease additives, it is a global manufacturer of special lubricating grease additives and a national high-tech enterprise with great influence and leading role in the industry. If you are looking for Lubricant Additive or technical information, feel free to contact UNPChemicals.