塑料科技2026，Vol.54Issue(6)：47-51,5.DOI:10.15925/j.cnki.issn1005-3360.2026.06.008
V-2级阻燃聚丙烯材料的制备及性能研究
Preparation and Properties Study of V-2 Flame Retardant Polypropylene Material
摘要
Abstract
UL-94 V-2 grade flame-retardant polypropylene(PP)materials were prepared using a twin-screw extruder,and the effect of the flame retardant on the flame retardancy,limiting oxygen index(LOI),thermal resistance,and mechanical properties of copolymer PP and homopolymer PP were investigated.The results showed that the flame-retardant effect of the PP materials improved with increasing flame retardant loading.The content of the flame retardant increased the LOI of the PP materials,and the LOI increased gradually with increasing flame retardant content,with homopolymer PP exhibiting a higher LOI than copolymer PP.When 2.0%mass fraction of flame retardant was added to copolymer PP,the LOI increased from 17.1%to 21.3%.When 0.2%mass fraction of flame retardant was added to homopolymer PP,the LOI increased from 17.3%to 22.8%.The incorporation of the flame retardant reduced the thermal decomposition temperature and thermal resistance of the PP materials.V-2 grade flame-retardant copolymer PP required more flame retardant than homopolymer PP,while V-2 grade flame-retardant homopolymer PP demonstrated superior thermal resistance compared with copolymer PP.The addition of the flame retardant had little effect on the tensile strength of the PP materials,but decreased the elongation at break and notched Izod impact strength,while increasing the melt flow index.关键词
阻燃剂/V-2级阻燃/聚丙烯/阻燃聚丙烯/极限氧指数Key words
Flame retardant/V-2 grade flame retardant/Polypropylene/Flame-retardant polypropylene/LOI分类
化学化工引用本文复制引用
冯晓,周雷..V-2级阻燃聚丙烯材料的制备及性能研究[J].塑料科技,2026,54(6):47-51,5.基金项目
重庆市技术创新与应用发展专项企业科技攻关联合行动计划项目(CSTB2025TIAD-qykjggX0271) （CSTB2025TIAD-qykjggX0271）
