Abstract
The flame resistance of applied coating materials affects the safety of innovative technological solutions. Silicone-containing polymeric materials are one of the most economical solutions in the field of coatings due to the effect of the unique combination of very good thermal, resistance, and surface properties. The rich chemistry of silicon compounds, which results in their very good thermal stability, allows their use as flame-resistant coating materials or as flame retardants in polymer composites. In this review, the flame resistance of PDMS systems based on their thermal degradation data, as well as possible paths of thermal degradation depending on external conditions including the effect of additives, flame resistance of hybrid silicone-containing coating materials and most important innovative applications of these materials, are reviewed. Very good results from the use of organic silicon compounds as fire retardants in polymers obtained by many research teams are one of the promising ways of overcoming the health, safety, and availability concerns of traditional halogenated fire retardants.
Highlights
Modern coating materials must possess excellent properties in order to meet the requirements of the most innovative applications in the fields of electronics, vehicles, household appliances, measuring and medical equipment and others [1,2,3]
Some patents are included in the description. This overview is divided into three main sections, including a discussion focused on flame resistance of PDMS systems based on their thermal degradation data including the effect of additives, the flame resistance of hybrid silicone-containing coating materials, and the most important innovative applications of these materials
It was found that mica with a particle size of 20 μm increases the amount of combustion residue to 60%, while the addition of mica with a particle size of 110 μm increases the residue to 63%, compared to 54% obtained after the thermal degradation of pure PDMS [48]
Summary
Modern coating materials must possess excellent properties in order to meet the requirements of the most innovative applications in the fields of electronics, vehicles, household appliances, measuring and medical equipment and others [1,2,3]. The flame resistance of materials is a complex property that is dependent on their chemical composition and structure, thermal stability, material construction, and combustion conditions. The most important factor influencing flame-retardant silicone-containing coatings materials is, the thermal properties of the silicone base polymer. In addition to the basic polymer system silicone-containing coating materials usually contain different substances, such as crosslinking systems, rheology modifiers, adhesion promoters and others These additives can have a significant, positive or negative, impact on the flame resistance of these materials. Some patents are included in the description This overview is divided into three main sections, including a discussion focused on flame resistance of PDMS systems based on their thermal degradation data including the effect of additives, the flame resistance of hybrid silicone-containing coating materials, and the most important innovative applications of these materials. The use of such additives is limited in European Union countries and the USA on the basis of legal provisions (e.g., REACH regulation, RoHS directive)
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