Flame Retardant Properties of Synergistic Flame Retardant Polypropylene

doi:10.11944/j.issn.1000-0518.2019.10.190184

Chinese Journal of Applied Chemistry ›› 2019, Vol. 36 ›› Issue (10): 1165-1171.DOI: 10.11944/j.issn.1000-0518.2019.10.190184

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Flame Retardant Properties of Synergistic Flame Retardant Polypropylene

LIU Yide^a^b,CHEN Jialian^a^d,LI Hongzhou^a^*(),YANG Songwei^a^b,LUO Fubin^a,CHEN Qinghua^a^b^c

^aCollege of Environmental Science and Engineering,Fujian Normal University,Fuzhou 350007,China
^bPolymer Resources Green Recycling Engineering Research Center of the Ministry of Education,Fuzhou 350007,China
^cFuqing Branch of Fujian Normal University,Fuzhou 350300,China
^dQuangang Petrochemical Research Institute of Fujian Normal University,Quanzhou,Fujian 362000,China

Received:2019-07-03 Accepted:2019-09-03 Published:2019-10-01 Online:2019-09-29
Contact: LI Hongzhou
Supported by:
Supported by the Foundation of Quangang Petrochemical Research Institute, Fujian Normal University(No.2018YJY03)

Abstract

Abstract:

In this paper, the synergistic flame retardant system with ammonium polyphosphate (APP) as the main flame retardant, aluminum hypophosphite (AHP) and melamine cyanurate (MCA) as auxiliary flame retardants was investigated for the flame retardant performance of polypropylene (PP). The flame retardant properties of the prepared flame retardant samples were analyzed by vertical burning test, limiting oxygen index (LOI) test, thermogravimetric analysis, cone calorimeter test and scanning electron microscopy. The results show that the addition of 30% mass fraction of any flame retardant alone can not achieve good flame retardant properties of PP. When the total mass fraction of additives is kept at 30%, mass ratio APP：AHP：MCA=4：1：1, the ideal flame retardancy is obtained, LOI of the flame retardant PP is 33%, the vertical burning test reaches V-0 level, and the peak heat release rate (PHRR) is reduced from 765.7 kW/m² to 122.7 kW/m².

Key words: polypropylene, synergistic system, cone calorimetry, flame retardancy

LIU Yide, CHEN Jialian, LI Hongzhou, YANG Songwei, LUO Fubin, CHEN Qinghua. Flame Retardant Properties of Synergistic Flame Retardant Polypropylene[J]. Chinese Journal of Applied Chemistry, 2019, 36(10): 1165-1171.

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Flame Retardant Properties of Synergistic Flame Retardant Polypropylene

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