二元醇改性密胺甲醛树脂包覆红磷

doi:10.11944/j.issn.1000-0518.2015.10.150127

摘要/Abstract

摘要：

用乙二醇和1,4-丁二醇对密胺甲醛树脂(MF)包覆红磷(MFRP)进行了化学改性,并对改性前后MFRP的磷化氢释放情况进行了比较。在模拟材料加工条件下,纯红磷(RP)的磷化氢释放量为44.51 mg/L,MFRP磷化氢释放量降低到24.13 mg/L,而二元醇改性包覆红磷,磷化氢释放量降低到8.05 mg/L。改性包覆效果显著。用傅里叶红外光谱(FTIR)表征改性前后MFRP的结构,证实改性剂成功介入树脂结构中。热重分析(TG/DTG)结果表明,改性后,MFRP的初始分解温度由未改性的264 ℃降到182 ℃,最大失重速率由11%/min下降到4.1%/min,800 ℃时,改性前后的MFRP残留量相同,均为11%。

关键词: 密胺甲醛树脂, 包覆红磷, 改性, 磷化氢释放量

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

马千,刘增杰,梁轶,董天贺,韩福芹. 二元醇改性密胺甲醛树脂包覆红磷[J]. 应用化学, 2015, 32(10): 1153-1158.

MA Qian,LIU Zengjie,LIANG Yi,DONG Tianhe,HAN Fuqin. Encapsulated Red Phosphorus in Dihydric Alcohol Modified Melamine Formaldehyde Resin[J]. Chinese Journal of Applied Chemistry, 2015, 32(10): 1153-1158.

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