Koviöljysekoitukset

Koviöljysekoitukset, also known as friction modifiers or anti-wear additives, are chemical compounds added to lubricants to reduce friction and wear between moving surfaces. These additives work by forming a protective film on the metal surfaces, which prevents direct contact and thus minimizes abrasive wear. They are crucial components in many types of lubricants, including engine oils, gear oils, and industrial lubricants, where high pressures and temperatures can otherwise lead to rapid degradation of machinery.

The effectiveness of koviöljysekoitukset depends on their chemical structure and their ability to react with metal surfaces under specific operating conditions. Common types include zinc dialkyldithiophosphates (ZDDP), which are widely used in engine oils due to their excellent anti-wear properties. Other types include sulfur-phosphorus additives and organic friction modifiers. The selection of the appropriate koviöljysekoitus is critical and depends on the application, the type of lubricant base stock, and the expected operating environment.

While koviöljysekoitukset offer significant benefits in terms of extending equipment life and improving efficiency, their use can also have environmental implications. Some additives, like ZDDP, can contribute to phosphorus emissions, which can be harmful to catalytic converters in vehicles. Therefore, ongoing research focuses on developing more environmentally friendly and effective alternatives that maintain or improve performance while reducing potential negative impacts. The development of new koviöljysekoitukset is an active area of lubrication science.