Effect of graphite and common rubber plasticizers on properties and performance of ceramizable styrene–butadiene rubber-based composites

Mateusz Imiela*, Rafal Piotr Anyszka, Dariusz Mariusz Bieliński, Marcin Masłowski, Zbigniew Pędzich, Magdalena Ziąbka, Przemysław Rybiński, Bartłomiej Syrek

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Ceramizable composites are highly filled polymer dispersion composites which create stiff porous and durable ceramic structure when exposed to fire or elevated temperature. However, the incorporation of large amounts of mineral fillers into the composites strongly decreases their processing performance. In order to improve extrusion properties of these composites, plasticizers like triethylamine, ethylene glycol, naphthalene, dibutyl phthalate and graphite were used. Extrudability of the composite mixes was examined as an indicator of their processing performance. After the vulcanization, mechanical properties of the composites were tested. In order to check the micromorphology of the samples scanning electron microscopy was performed. Because of the significant flammability of the plasticizers, it was also important to examine how these additives change combustion behavior of the composites by cone calorimetry. Additionally, composites were ceramized in three different thermal conditions and their compression strength was measured. The incorporation of graphite platelets resulted in optimum balance between enhancing extrudability and preserving satisfactory mechanical properties and ceramization performance. The obtained results showed that ceramizable composites are susceptible to plasticizing and their mechanical and combustibility properties can be preserved like before the plasticizers addition.

Original languageEnglish
Pages (from-to)2409-2417
Number of pages9
JournalJournal of Thermal Analysis and Calorimetry
Volume138
Issue number4
Early online date21 May 2019
DOIs
Publication statusPublished - 1 Nov 2019

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Keywords

  • Caramification
  • Ceramization
  • Graphite
  • Plasticizer
  • Polymer composites
  • Styrene–butadiene rubber

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