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Preparation and study of intumescent flame retardant poly(butylene succinate) using MgAlZnFe‐CO 3 layered double hydroxide as a synergistic agent
Author(s) -
Liu YueJun,
Mao Long,
Fan Shuhong
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.40736
Subject(s) - intumescent , fire retardant , limiting oxygen index , materials science , polybutylene succinate , ammonium polyphosphate , melamine , composite material , ultimate tensile strength , coprecipitation , hydroxide , layered double hydroxides , flexural strength , flammability , chemical engineering , pyrolysis , engineering , char
Intumescent flame retardant consisting of ammonium polyphosphate and melamine, and MgAlZnFe‐CO 3 layered double hydroxides (LDHs) prepared by the constant pH coprecipitation method, were added to poly(butylene succinate) (PBS) via melt blending to obtain novel intumescent flame retardant poly(butylene succinate) (IFR‐PBS) composites. A study on the effect of MgAlZnFe‐CO 3 LDHs on the mechanical, thermal, and flame retardancy properties of IFR‐PBS composites was investigated. It was revealed that IFR‐PBS composites exhibited both excellent flame retardancy and antidripping properties when the content of MgAlZnFe‐CO 3 LDHs was 1% (the total loading of flame retardant was 20%), for a goal of vertical flammability (UL‐94) V‐0 rate and a limiting oxygen index value of 35. The results showed that a suitable amount of MgAlZnFe‐CO 3 LDHs had a noticeable synergistic effect on IFR‐PBS composites. Importantly, tensile strength and flexural strength were improved by the presence of MgAlZnFe‐CO 3 LDHs. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40736.