China Plastics ›› 2025, Vol. 39 ›› Issue (7): 28-31.DOI: 10.19491/j.issn.1001-9278.2025.07.006

• Materials and Properties • Previous Articles     Next Articles

Application and performance study of melamine cyanurate in flame⁃retardant polyethylene cable materials

YE Xiangyu()   

  1. Hangzhou Rongrong Cable Material Co,Ltd,Hangzhou 310000,China
  • Received:2024-08-08 Online:2025-07-26 Published:2025-07-22

Abstract:

This study investigated the effects of partially replacing magnesium hydroxide with melamine cyanurate (MCA) in flame⁃retardant polyethylene cable materials. The replacement ratio was varied while maintaining the total flame retardant content. The modified materials were evaluated for mechanical properties, melt flow rate, volume resistivity, limiting oxygen index (LOI), and UL94 vertical burning performance. Results indicated that as MCA substitution increased: (1) mechanical properties gradually declined; (2) MFR and volume resistivity remained relatively stable; (3) LOI improved before reaching a plateau; and (4) flame retardancy significantly enhanced, achieving V⁃2, V⁃1, and V⁃0 ratings at 4 %, 6 %, and 9 % MCA replacement levels (by total mass), respectively. The findings demonstrated that optimal MCA incorporation could improve flame retardancy while maintaining acceptable material properties for cable applications.

Key words: melamine cyanuratet, flame retardant, polyethylene, cable material, vertical combustion

CLC Number: