Chinese Journal of Applied Chemistry ›› 2015, Vol. 32 ›› Issue (10): 1153-1158.DOI: 10.11944/j.issn.1000-0518.2015.10.150127

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Encapsulated Red Phosphorus in Dihydric Alcohol Modified Melamine Formaldehyde Resin

MA Qian,LIU Zengjie,LIANG Yi,DONG Tianhe,HAN Fuqin   

  1. Heilongjiang Key Laboratory of Molecular Design and Preparation of Flame Retarded Materials,Chemistry Department,Northeast Forestry University,Harbin 150040,China
  • Received:2015-04-07 Accepted:2015-08-04 Online:2015-10-10 Published:2015-10-10
  • Contact: HAN Fuqin
  • Supported by:
    Supported by the Student Innovation Training Program of Northeast Forestry University(No.20140225118)

Abstract:

Considering the melamine formaldehyde(MF) resin with encapsulated red phosphorus(MFRP) releases large amounts of phosphine in the process of transportation, storage and application, MFRP was modified with glycol and 1,4-butanediol to reduce the release of phosphine and its phosphine release quantity was compared with unmodified MFRP. Under the condition of simulating material processing, pure red phosphorus(RP) released 44.51 mg/L phosphine, MFRP released 24.13 mg/L phosphine and modified MFRP released 8.05 mg/L, respectively. It is obvious that the modification has significant effect on the release quantity. The structures of MFRP before and after modification were characterized with FTIR. The results of TG/DTG show that the initial decomposition temperature of the modified MFRP is reduced from 264 ℃ to 182 ℃, while the maximum decomposition rate is decreased from 11%/min to 4.1%/min and the amount of residues remains the same(11%) at 800 ℃.

Key words: melamine formaldehyde resin, encapsulated red phosphorus, modification, phosphine release quantity