Journal
MATERIALS LETTERS
Volume 229, Issue -, Pages 85-88Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2018.06.120
Keywords
Silicone rubber; Fullerenes; Flame retardancy; Free-radical quenching; Nanocomposites
Funding
- National Natural Science Foundation of China [51773064, 51403067, 51573052]
- Science and Technology Planning Project of Guangdong Province [2015B090925014]
- Special Funds for the Cultivation of Guangdong College Students' Scientific and Technological Innovation [pdjh2017a0028]
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The free-radical trapping capability of buckminsterfullerene (C-60) inevitably inhibits peroxide vulcanization, which is one of the most challenges for its application in high temperature vulcanized silicone rubber (HTVSR). In this work, polymethylphenylsiloxane decorated C-60 (PMPS-d-C-60) was fabricated via pi-pi stacking interaction and incorporated into HTVSR. It was found that PMPS-d-C-60 not only overcame the negative effect of C-60 on HTVSR vulcanization, but also effectively enhanced the flame retardancy of HTVSR. By adding only 4.0 phr PMPS-d-C-60, the limiting oxygen index of HTVSR was increased to 29.0%, and its peak of heat release rate was reduced more than 32%. (C) 2018 Elsevier B.V. All rights reserved.
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