塑料科技2024，Vol.52Issue(11)：43-47,5.DOI:10.15925/j.cnki.issn1005-3360.2024.11.008
磷系阻燃剂包覆技术及对PP树脂阻燃改性研究
Phosphorus Flame Retardant Coating Technology and Flame Retardant Modification Study of PP Resin
摘要
Abstract
Polypropylene(PP)flammability poses an impact on the environment and safety,making the development of environmentally friendly and efficient halogen-free flame retardants essential.Type Ⅱ Ammonium polyphosphate(APP)has poor thermal stability,hence it needs for modification research.In this study,new phosphorus-based flame retardants were prepared by mixing and coating at different temperatures for the evaluation of their effects on the mechanical and flame-retardancy of PP materials.The results showed that the flame retardant prepared from type Ⅱ ammonium polyphosphate,melamine and silane coupling agent KH560 according to the mass ratio of 3∶1∶0.01 mixed at 200℃for 60 min in a high mixer had the best and stable mechanical and flame retardancy.The maximum heat release rate(MARHE)of these materials was reduced to 249.96 kW/m2,the heat release rate(HRR)was reduced to 85.75 kW/m2,the mass loss rate(MLR)was reduced to 1.78 g/(s·m2),the total heat release heat(THR)was reduced to 68.04 MJ/m2,the total smoke production(TSP)was reduced to 9.07 m2,and the time to ignition(TTI)was extended to 33 s.The flame retardant is highly efficient and environmentally friendly,and the modified PP material meets the requirements of flame retardant industry standards.关键词
磷系阻燃剂/包覆/阻燃Key words
Phosphorus flame retardant/Coating/Flame retardant分类
化学化工引用本文复制引用
张振环,马航,万邦隆,杨晓龙..磷系阻燃剂包覆技术及对PP树脂阻燃改性研究[J].塑料科技,2024,52(11):43-47,5.基金项目
云南省重大科技专项(202102AB080002) （202102AB080002）
