China Plastics ›› 2022, Vol. 36 ›› Issue (8): 42-48.DOI: 10.19491/j.issn.1001-9278.2022.08.007

• Materials and Properties • Previous Articles     Next Articles

Preparation and properties of polyamide flame⁃retardant composite reinforced with high content of glass fiber

CHEN Baiquan(), ZHENG Youming, TIAN Jibo, XHANG Lei, WANG Jinsong, LIN Xiajie, DUAN Yapeng   

  1. CGN Juner New Materials Co,Ltd,Wenzhou 325000,China
  • Received:2022-04-13 Online:2022-08-26 Published:2022-08-22

Abstract:

Three types of reinforced flame?retardant polyamide (PA) composites with a high content of glass fiber were prepared using a twin?screw extruder, which included PA6?, PA66? and PA 56?matrix composites with 50 wt% glass fiber. The mechanical properties, flame retardant properties and laser marking properties of the composites were studied comparatively under three flame retardant systems including red phosphorus, bromine, and phosphorus?nitrogen. The results indicated that the flame retardant systems had obvious effects on the mechanical properties of the composites. The PA66 composites obtained the highest retention of mechanical properties after water absorption equilibrium. The PA56 composites exhibited better flame?retardant performance the PA6 and PA66 composites. The laser marking effect of infrared laser and ultraviolet laser was obviously different, and however, it showed no obvious difference among PA6, PA66 and PA56 under the same flame?retardant systems and laser source.

Key words: high content glass fiber, polyamide, reinforcement modification, flame retardant, laser marking

CLC Number: