含磷共聚阻燃尼龙66的制备与性能  

Preparation and Properties of Phosphorus-Containing Flame-Retardant Nylon66

作　　者：张建春[1] 冯新星[1] 刘梅军[2] 

机构地区：[1]中国人民解放军总后勤部军需装备研究所,北京100082 [2]浙江理工大学材料与纺织学院,杭州310018

出　　处：《高分子通报》2013年第9期157-161,共5页Polymer Bulletin

摘　　要：利用含磷共聚型阻燃剂成功合成了阻燃尼龙66,与普通尼龙66相比:红外光谱测试(FTIR)发现,阻燃剂以共聚的方式引入到尼龙的大分子链当中;热失重测试(TGA)显示,由于阻燃剂的加入,使得阻燃尼龙66在经历第一个热降解阶段(Tmax1为418.59℃)后,需要在更高的温度下(Tmax2为480.56℃)才能继续进行降解;极限氧指数(LOI)测试显示,阻燃尼龙66比普通尼龙66具有更好的阻燃性能,LOI值达到26.7;扫描电子显微镜(SEM)观察了600℃下处理过的阻燃尼龙66样品成炭情况,发现阻燃尼龙66具有很好的成炭性能。The flame-retardant polyamide66 （FR-PA66） was synthesized successfully by reaction of phosphorus- containing flame retardant. Through FTIR, TGA and DTG, SEM, LOI, the structures and properties of these samples were characterized. The FTIR analysis showed that the phosphorus-containing flame retardant was introduced in the PA66＇ s main chain. The TGA and DTG measurement indicated that the further degradation of FR-PA66 required higher temperature （Tmax2 was about 480.56℃） after through the first degradation stage（Tin,x1 was about 418.59℃）to thermal- degradation. Through LOI and SEM analysis, it was demonstrated that the LOI value of FR-PA66 has been reached 26.7, and FR-PA66 has better char-forming property.

关 键 词：阻燃尼龙66 热稳定性 LOI 成炭 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]