Correlation Between Glass Fiber Length and Flame Retardant Properties of LGF/PBT/RP Composites
ZHAO Wan1, HE Min1,2, ZHANG Daohai1,2, HUANG Tao1, ZHANG Li1
1 College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 550025; 2 National Engineering Research Center for Compounding and Modification of Polymer Materials, Guiyang 550014
Abstract: The relationship between the glass fiber length and flame retardant of LGF/PBT/RP composites was studied. According to the analysis of optical microscope,combustion properties test, scanning electron microscope (SEM), dynamic thermomechanical analysis (DMA) and mechanical properties, it was found that with the initial length of glass fiber increasing, the effective fiber length distribution of LGF/PBT/RP composites firstly moved toward the longer region of glass fiber, then moved toward the shorter area of glass fiber.Moreover, the dispersion of glass fibers of LGF/PBT/RP composites turned from homogeneous to uneven. With increase of the length of glass fiber, the burning time of vertical burning test (UL-94), average heat release rate (Av-HRR), total smoke release (TSR), total heat release (THR), average effective heat of combustion(Av-EHC) and fire growth rate(FIGRA)of LGF/PBT/RP composite firstly decreased and then increased. The change trend of limiting oxygen index(LOI) was opposite. This behavior indicated that with the effective length of glass fiber increasing, the flame retardant performance of LGF/PBT/RP compo-site was improved, namely, the glass fiber length had an effect on flame retardant performance of LGF/PBT/RP composite.
1 Gao F, Tong L, Fang Z. Effect of a novel phosphorous-nitrogen containing intumescent flame retardant on the fire retardancy and the thermal behaviour of poly(butylene terephthalate)[J]. Polym Degrad Stab,2006,91(91):1295. 2 Yang W, Hu Y, Tai Q, et al. Fire and mechanical performance of nanoclay reinforced glass-fiber/PBT composites containing aluminum hypophosphite particles[J]. Composites Part A:Appl Sci Manufacturing,2011,42(7):794. 3 Huang Qian. The preparation and performance research of halogen-free flame retardant PBT engineering plastics [D].Guangzhou: South China University of Technology,2011(in Chinese). 黄倩. 无卤阻燃PBT工程塑料的制备与性能研究[D]. 广州:华南理工大学,2011. 4 Lang Liuchun, Ye Nanbiao, Li Jianjun, et al. Flame retardancy and thermal stability of halogen-free flame retardant PBT [J]. Plastics Sci Technol,2010,38(6):49(in Chinese). 郎柳春, 叶南飚, 李建军,等. 无卤阻燃PBT的阻燃性及热稳定性[J]. 塑料科技,2010, 38(6):49. 5 Hartikainen J, Hine P, Szabo J S. Polypropylene hybrid composites reinforced with long glass fibers and particulate filler[J]. Compos Sci Technol,2005,65(2):257. 6 Chattopadhyay S K, Khandal R K, Uppaluri R, et al. Influence of varying fiber lengths on mechanical, thermal, and morphological properties of MA-g-PP compatibilized and chemically modified short pineapple leaf fiber reinforced polypropylene composites[J]. J Appl Polym Sci,2009,113(6):3750. 7 Yang B, Leng J, He B, et al. Influence of fiber length and compatibilizer on mechanical properties of long glass fiber reinforced polya-mide 6,6[J]. J Reinforced Plastics Compos, 2012,31(16):1103. 8 Tao Z, Wang Y, Li J, et al. Fabrication of long glass fiber reinforced polyacetal composites: Mechanical performance, microstructures, and isothermal crystallization kinetics[J]. Polym Compos,2014,36(10):1826. 9 Huang Huilong. Study on long glass fiber reinforced nylon 66 Composites [D]. Guangzhou:South China University of Technology, 2013(in Chinese). 黄惠龙. 长玻纤增强尼龙66复合材料的研究[D]. 广州:华南理工大学, 2013. 10 Casu A, Camino G, Giorgi M D, et al. Effect of glass fibres and fire retardant on the combustion behaviour of composites, glass fibres-poly(butylene terephthalate)[J]. Fire Mater, 1998,22(1):7. 11 Liu Y, Yi J S, Cai X F. Application of a novel halogen-free intumescent flame retardant for acrylonitrile-butadiene-styrene [J]. J Appl Polym Sci,2012,124(2):1475. 12 Ou Yuxiang, Liu Zhiguo, Wu Junhao. Combustion behavior and flame retardant synergism of PA6 flame-retarded with melamine polyphosphate and melamine octomolybdate[J]. J Beijing Institute of Technology,2004,24(9):829(in Chinese). 欧育湘, 刘治国, 吴俊浩. 聚磷酸蜜胺与八钼酸蜜胺阻燃PA6的燃烧行为及协同作用[J]. 北京理工大学学报,2004,24(9):829. 13 Jian R K, Chen L, Hu Z, et al. Flame-retardant polycarbonate/acrylonitrile-butadiene-styrene based on red phosphorus encapsulated by polysiloxane: Flame retardance, thermal stability, and water resistance [J]. J Appl Polym Sci,2012,123(5):2867. 14 Balabanovich A I, et al. Fire retardance in poly(butylene terephthalate). The effects of red phosphorus and radiation-induced cross-links[J]. Macromolecular Mater Eng,2004,289(2):181. 15 He B, Liu H, Leng J, et al. Mechanical properties of long glass fiber-reinforced polypropylene composites and their influence factors[J]. J Reinforced Plastics Compos,2011,30(3):222. 16 Essabir H, Elkhaoulani A, Benmoussa K, et al. Dynamic mechanical thermal behavior analysis of doum fibers reinforced polypropylene composites [J]. Mater Des,2013,51(5):780.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2017, Vol. 31 
