Company News

• What are the types and functions of lubricant additives?

  2024 / 11 / 05

  Lubricant additives are added to improve lubricant performance, protect mechanical equipment and improve work efficiency. Common lubricant additives include antioxidants, anti-wear agents, extreme pressure agents, improvers, viscosity index improvers, degassing and anti-foaming agents, etc.   1. Antioxidants: Antioxidants are additives that prevent lubricants from oxidation and aging. It can effectively extend the service life of lubricants, stabilize lubricant performance, and avoid lubricant acidification, deterioration and other problems.   2. Antiwear agents: Antiwear agents can reduce friction, wear and contact between abrasive particles in mechanical equipment, and reduce wear of mechanical parts. Common antiwear agents include sulfides, phosphides, etc. 3. Extreme pressure agent: Extreme pressure agent is an additive to reduce metal friction and is widely used in lubricating oils under high temperature, high pressure and heavy load conditions. It can form a protective film to effectively reduce the contact and wear of metal surfaces.   4. Improver: Improvers are mainly used to improve the fluidity and cleaning performance of lubricating oils. For example, dispersants can prevent precipitation and reduce the formation of sediments; detergents can remove dirt and sediments inside mechanical equipment.   5. Viscosity index improver: The viscosity index of lubricating oil refers to the ability of lubricating oil to change viscosity at different temperatures. Viscosity index improvers can keep lubricating oil at a relatively stable viscosity at different temperatures and improve lubrication performance.   6. Degassing

• The difference between ester oil and mineral oil

  2024 / 10 / 31

  Ester oil is a brown liquid chemical, generally processed from the seeds of certain plants (such as soybeans, peanuts, etc.), and is widely used in lubricating oils and fuel oils. It is a type of ester. Compared with other ester compounds, it has a larger molecular weight and a certain viscosity and viscosity. Ester oil has many important uses, such as stabilizers, solvents, lubricants, and basic components of plant essential oils in the pharmaceutical and food industries. Mineral oil is a liquid extracted directly from natural petroleum, mainly used in industry, automobiles, etc. This oil has a long service life, but it is seriously polluting the environment. Differences in composition between ester oil and mineral oil 1. Ester oil Ester oil molecules contain COO and CH2 groups, as well as alcohol groups or epoxy groups. Due to the different combinations of these groups, ester oil has a variety of different chemical structures and properties. 2. Mineral oil The main components of mineral oil are hydrocarbons, including alkanes, cycloalkanes and aromatic hydrocarbons. Since these molecules are only connected by weak chemical bonds, petroleum molecules can easily react chemically to produce a variety of different products. Differences in physical and chemical properties between ester oil and mineral oil 1. Ester oil Ester oil generally has a lower melting point, which can reach -90℃, and is more suitable for use in low temperature environments than mineral oil. At the same time, because ester oil molecules contain polar groups, they are usually compatible with water and easily degraded. 2. Mineral oil Mineral oil usually has a higher melting point than ester oil, about -20℃ to -40℃. Since they are non-polar molecules, they usu

• What is Polyalkylene Glycol?

  2024 / 10 / 29

  Polyalkylene glycol (PAG) is a synthetic polyether compound commonly used in industrial lubricants and transmission fluids. It is made by polymerizing ethylene glycol and an alkyl compound such as isodecane and is widely used due to its high temperature stability and antioxidant properties. Properties of polyalkylene glycol： 1.Thermal stability: Polyalkylene glycol has good thermal stability and can maintain the integrity of the molecular chain under high temperature conditions. 2.Solubility: Polyalkylene glycol is a high molecular weight substance with good solubility and can be dissolved in a variety of solvents such as water, alcohols, ethers, etc. 3.Chemical resistance: Polyalkylene glycol has good chemical resistance and has a certain resistance to acids, alkalis, solvents, etc. 4.Interfacial activity: Since polyalkylene glycol molecules contain hydrophobic groups and hydrophilic groups, it has good interfacial activity and can be used in emulsification, dispersion, wetting and other processes.