Citation: Zhi Yong Wu, Wei Xu, Jin Kui Xia, Yao Chi Liu, Qian Xin Wu, Wei Jian Xu. Flame retardant polyamide 6 by in situ polymerization of ε-caprolactam in the presence of melamine derivatives[J]. Chinese Chemical Letters, ;2008, 19(2): 241-244. doi: 10.1016/j.cclet.2007.12.012 shu

Flame retardant polyamide 6 by in situ polymerization of ε-caprolactam in the presence of melamine derivatives

Zhi Yong Wu ^a,b, ,
Wei Xu ^a ,
Jin Kui Xia ^b ,
Yao Chi Liu ^a ,
Qian Xin Wu ^a ,
Wei Jian Xu ^a

a College of Chemistry & Chemical Engineering, Hunan University, Changsha 410082, China;
b Research Institute of Yueyang General Petrochemical Works, Yueyang 414000, China

Received Date: 28 September 2007

Fund Project: This work is financially supported by Yueyang general petrochemical works, PR China. We are also pleased to thank State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, PR China for their kind support for analysis.

An improved method for preparing melamine cyanurate (MCA) based flame retardant polyamide 6 (FRPA6) materials has been proposed.This processing method, i.e., improved in situ polymerization, was used to synthesize flame retardant PA6.In situ formed MCA nanoparticles were supposed to be linked to PA6 chains in the ε-caprolactam hydrolytic polymerization system to obtain startype polymers for the first time.Through TEM photographs, it can be found that the in situ formed MCA nanoparticles with diametric size of less than 50 nm, are nanoscaled, highly uniformly dispersed in the PA6 matrix.Synthesized flame retardant PA6 have good fire performance which can achieve UL-94 V-0 rating at 1.6 mm thickness with the presence of 7.34 wt.% MCA in the matrix.
- Polyamide 6,
- In situ polymerization,
- Melamine cyanurate,
- Nanopartieles
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