In this study, polypropylene (PP) composites were fabricated by incorporating reduced graphene oxide (RGO) sheets and antioxidant pentaerythritol tetra [beta-(3, 5-di-tert-butyl-4-hydroxyphenyI)-propionate] (AO1010) to comparatively investigate the effect of graphene and antioxidant on the radiation resistance. Morphological observation and X-ray diffraction reveal the uniform dispersion of RGO. The incorporation of antioxidant is beneficial to the improved dispersion and exfoliation of RGO nanosheets in the PP matrix. The melting temperature decreases significantly with increasing irradiation dose, whereas the crystallinity remains almost unchanged for all the samples before and after irradiation. Tensile strength analysis demonstrates that incorporating RGO sheets is more effective for radiation protection at low doses, and adding AO1010 is more applicable to radiation resistance at high doses. Furthermore, the mechanical performance and the decomposition temperature of PP/AO1010/RGO composites by simultaneously incorporating 0.5 wt% AO1010 and 1.0 wt% RGO sheets are higher than that of PP/AO1010 and PP/RGO composites upon gamma irradiation at various doses, indicating an additive effect between RGO and AO1010 in retarding the radiation-induced degradation of PP composites. The intrinsic mechanism of radiation resistance is attributed to the free radical scavenging and oxygen barrier effect. The additive effect between RGO and AO1010 can substantially reduce the number of peroxy radicals and oxygen concentration in the composites, resulting in the remarkable improvement in radiation resistance. (C) 2017 Elsevier Ltd. All rights reserved.
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Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R ChinaUniv Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China
Bao, Chenlu
Guo, Yuqiang
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Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R ChinaUniv Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China
Guo, Yuqiang
Song, Lei
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Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R ChinaUniv Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China
Song, Lei
Hu, Yuan
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Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China
Univ Sci & Technol China, Suzhou Inst Adv Study, Suzhou Key Lab Urban Publ Safety, Suzhou 215123, Jiangsu, Peoples R China
Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Anhui, Peoples R ChinaUniv Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China
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Masdar Inst Sci & Technol, Dept Mech & Mat Engn, Inst Ctr Microsyst iMicro, Abu Dhabi, U Arab EmiratesMasdar Inst Sci & Technol, Dept Mech & Mat Engn, Inst Ctr Microsyst iMicro, Abu Dhabi, U Arab Emirates
Cui, Yanbin
Kundalwal, S. I.
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Univ Toronto, Dept Mech & Ind Engn, Toronto, ON, CanadaMasdar Inst Sci & Technol, Dept Mech & Mat Engn, Inst Ctr Microsyst iMicro, Abu Dhabi, U Arab Emirates
Kundalwal, S. I.
Kumar, S.
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Masdar Inst Sci & Technol, Dept Mech & Mat Engn, Inst Ctr Microsyst iMicro, Abu Dhabi, U Arab Emirates
MIT, Dept Mech Engn, Cambridge, MA 02139 USAMasdar Inst Sci & Technol, Dept Mech & Mat Engn, Inst Ctr Microsyst iMicro, Abu Dhabi, U Arab Emirates
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Univ Manchester, Manchester Ctr Mesosci & Nanotechnol, Manchester M13 9PL, Lancs, EnglandUniv Manchester, Manchester Ctr Mesosci & Nanotechnol, Manchester M13 9PL, Lancs, England
Geim, A. K.
Novoselov, K. S.
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Univ Manchester, Manchester Ctr Mesosci & Nanotechnol, Manchester M13 9PL, Lancs, EnglandUniv Manchester, Manchester Ctr Mesosci & Nanotechnol, Manchester M13 9PL, Lancs, England
机构:
Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R ChinaUniv Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China
Bao, Chenlu
Guo, Yuqiang
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Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R ChinaUniv Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China
Guo, Yuqiang
Song, Lei
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Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R ChinaUniv Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China
Song, Lei
Hu, Yuan
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机构:
Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China
Univ Sci & Technol China, Suzhou Inst Adv Study, Suzhou Key Lab Urban Publ Safety, Suzhou 215123, Jiangsu, Peoples R China
Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Anhui, Peoples R ChinaUniv Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China
机构:
Masdar Inst Sci & Technol, Dept Mech & Mat Engn, Inst Ctr Microsyst iMicro, Abu Dhabi, U Arab EmiratesMasdar Inst Sci & Technol, Dept Mech & Mat Engn, Inst Ctr Microsyst iMicro, Abu Dhabi, U Arab Emirates
Cui, Yanbin
Kundalwal, S. I.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Toronto, Dept Mech & Ind Engn, Toronto, ON, CanadaMasdar Inst Sci & Technol, Dept Mech & Mat Engn, Inst Ctr Microsyst iMicro, Abu Dhabi, U Arab Emirates
Kundalwal, S. I.
Kumar, S.
论文数: 0引用数: 0
h-index: 0
机构:
Masdar Inst Sci & Technol, Dept Mech & Mat Engn, Inst Ctr Microsyst iMicro, Abu Dhabi, U Arab Emirates
MIT, Dept Mech Engn, Cambridge, MA 02139 USAMasdar Inst Sci & Technol, Dept Mech & Mat Engn, Inst Ctr Microsyst iMicro, Abu Dhabi, U Arab Emirates
机构:
Univ Manchester, Manchester Ctr Mesosci & Nanotechnol, Manchester M13 9PL, Lancs, EnglandUniv Manchester, Manchester Ctr Mesosci & Nanotechnol, Manchester M13 9PL, Lancs, England
Geim, A. K.
Novoselov, K. S.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Manchester, Manchester Ctr Mesosci & Nanotechnol, Manchester M13 9PL, Lancs, EnglandUniv Manchester, Manchester Ctr Mesosci & Nanotechnol, Manchester M13 9PL, Lancs, England