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Chinese Journal of Materials Research  2012, Vol. 26 Issue (5): 456-460    DOI:
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Synergistic Effect of OMMT/Mesoporous MCM–41 on Intumescent Flame Retardant Polypropylene
MI Long, WANG Na, ZHANG Jing, LI Xuri, FANG Qinghong
School of Material Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142
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MI Long WANG Na ZHANG Jing LI Xuri FANG Qinghong. Synergistic Effect of OMMT/Mesoporous MCM–41 on Intumescent Flame Retardant Polypropylene. Chinese Journal of Materials Research, 2012, 26(5): 456-460.

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Abstract  

Different proportional polypropylene (PP)/intumescent flame retardant (IFR)/organic montmorillonite (OMMT)/MCM–41 (without template) nano–composites were obtained by the melting method. Effect of nano–layered OMMT and dual nano–structured MCM–41 (with nano–sized spherical particle and nano–sized hexagonal channel) on the properties of polypropylene composites was investigated. The results show that the flame retardancy properties of PP matrix can be improved obviously  with the  combination of OMMT, MCM–41 and IFR. A synergistic effect in flame retardancy is best when the ratio of OMMT/MCM–41 was 1:1. The tensile strength and impact strength reached the maximum, meanwhile, the LOI value was 34.2 and increased by 50% compared with pure PP. Furthermore the UL–94 rating rose to V–0 and the thermal stability was improved significantly compared with that of PP/IFR composite.

Key words:  organic polymer materials      intumescent flame retardant      organic montmorillonite      MCM–41     
Received:  11 June 2012     
ZTFLH:  TB324  
Fund: 

Supported by National Natural Science Foundation of China Nos.51103086 & 51173110, Distinguished Young Scholars of Liaoning Province Higher Growth Plans No.LJQ2011040, and the Postdoctoral Science Foundation No.2012M510922.

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https://www.cjmr.org/EN/     OR     https://www.cjmr.org/EN/Y2012/V26/I5/456

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