Abstract
The study presents the investigation results concerning the thermal properties of non-cross-linked and cross-linked silicone rubber with organic peroxide. The rubber was filled with mineral fillers such as cenospheres, including cenospheres covered with iron, attapulgite, wol- lastonite, aluminum hydroxide and silica. The thermal sta- bility of the silicone rubber was considered from the point of view of the mineral fillers used, particularly taking into account the modern cenospheric filler. Thermal analysis was carried out under both air and a neutral gas at temperatures ranging from 120 to 700 � C. The activation energy value of the silicone rubber destruction was determined with the use of the non-isothermal method of Flynn-Wall-Ozawa.
Highlights
Synthetic polymers are a crucial part of today’s life, and they can be found nearly everywhere and more and more frequently and faster replace conventional materials such as metal, ceramics or wood
The thermal degradation process of polysiloxanes can be considered from the point of view of their chemical structure and kinetic parameters and not in terms of the bond energy
The thermal decomposition of the silicone rubber tested under inert gas proceeds differently from that under air
Summary
Synthetic polymers are a crucial part of today’s life, and they can be found nearly everywhere and more and more frequently and faster replace conventional materials such as metal, ceramics or wood. Synthetic polymeric materials have some limitations, including their flammability [1, 2]. In accordance with the current legal regulations, the products obtained from synthetic polymers, such as carpets, electric conductors or furniture, must be characterized by a specified resistance to fire. From the review of source literature, it follows that a considerable improvement in fire resistance of polymeric materials can be obtained with the use of polysiloxanes in their production [3,4,5]. The commercial production of silicone polymers began in 1940. Their production as well as the number of their potential, practical applications has systematically increased for 75 years. It is estimated that in the scale of all the world, the value of the manufacture of silicone materials amounts to several billion dollars, while all the time, it shows a constant growing trend [4, 6]
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