“一锅法”合成双组分镁基阻燃剂及性能研究

doi:10.19964/j.issn.1006-4990.2021-0737

Abstract

Abstract:

Based on light burned magnesium oxide as the raw material，an integral high efficiency halogen?free flame retardant（MCMH） with hierarchical structure and double?components including magnesium hydroxide（MH） and basic magnesium carbonate（MC） was synthesizedvia one?pot method.PP/MCMH and PP/MH composites were prepared by internal mixing of MCMH and MH with polypropylene（PP） respectively，and the flame retardant properties of MCMH and MH applied to PP were compared.The results showed that the synthesized MCMH was formed by the hydration of magnesium oxide to magnesium hydroxide，and then part of magnesium hydroxide reacted with ammonium bicarbonate to form basic magnesium carbonate，showing a flower like multistage structure.When the mass fraction of flame retardant was 50%，the peak heat release rate（HRR） and smoke production rate（SPR） of PP/MCMH composites were significantly decreased to 299 kW/m² and 0.038 m²/s，respectively.This strategy had the potential for large?scale production and application due to the wide sources of raw materials，short process and easy operation.

Key words: one?pot method, magnesium hydroxide, basic magnesium carbonate, flame retardant, polypropylene

CLC Number:

TQ132.2

PANG Hongchang,WANG Zhiyu,TIAN Peng,NING Guiling. Study on synthesis and properties of two component magnesium based flame retardant by“one?pot method”[J]. Inorganic Chemicals Industry, 2022, 54(8): 54-58.

Figures/Tables 6

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Inorganic Acid-Base-Salt Committee of CIESC

Study on synthesis and properties of two component magnesium based flame retardant by“one?pot method”

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