Flow Field Mixing Characteristics of High Stretching Rotor and Its Application in Preparation of Halogen-Free Flame Retardant EVA

被引:0
|
作者
Liao Y. [1 ]
Xie L. [1 ]
Ma Y. [1 ]
Jin J. [1 ]
Chen T. [1 ]
机构
[1] Engineering Center of Efficient Green Process Equipment and Energy Conservation of Ministry of Education, East China University of Science and Technology, Shanghai
关键词
Ethylene-vinyl acetate copolymer; Halogen-free flame retardant; High stretching rotor; Mechanical properties;
D O I
10.16865/j.cnki.1000-7555.2018.01.019
中图分类号
学科分类号
摘要
Polyflow software was used to analyze the mixing characteristics of the flow field in the two rotor continuous mixing extruder. Effect of rotor structure and process parameters on the mixing performance was discussed. Based on these works, halogen-free flame retardant ethylene-vinyl acetate copolymer(EVA)was prepared and mechanical, flame retardant properties were characterized. The results show that the distributive mixing capability and dispersive mixing capability of high stretching rotor are better than thoseof classical rotors. Its mixing characteristics can meet requirement of continuous production equipment of flame retardant composites. When the rotor speed of the high stretching rotor is 600 r/min, the composite reaches the best comprehensive performance, withthe tensile strengthof 11.59 MPa, elongation at break of 173.66% and limiting oxygen index of 31.5%. © 2018, Editorial Board of Polymer Materials Science & Engineering. All right reserved.
引用
收藏
页码:101 / 105
页数:4
相关论文
共 13 条
  • [1] Fu M., Qu B., Synergistic flame retardant mechanism of fumed silica in ethylene-vinyl acetate/magnesium hydroxide blends, Polym.Degrad. Stab., 85, pp. 633-639, (2004)
  • [2] Hage R.E., Viretto A., Sonnier R., Et al., Flame retardancy of ethylene vinyl acetate (EVA) using new aluminum-based fillers, Polym.Degrad. Stab., 108, pp. 56-67, (2014)
  • [3] Wu C., Wu W., Qu H., Et al., Synthesis of a novel phosphazene derivative and its application in intumescent flame retardant-EVA copolymer composites, Mater. Lett., 160, pp. 282-285, (2015)
  • [4] Ding Y.Y., Liang X.U., Hu G.S., Performance of halogen-free flame retardant EVA/MH/LDH composites with nano-LDHs and MH, Chin. Sci. Bull., 56, pp. 3878-3883, (2011)
  • [5] Kalali E.N., De Juan S., Wang X., Et al., Comparative study on synergistic effect of LDH and zirconiumphosphate with aluminumtrihydroxide on flame retardancyof EVA composites, Therm. Anal.Calorim., 121, pp. 619-626, (2015)
  • [6] Xia Y., Hu L.Y., Liu C.S., Et al., Optimizing formula of special halogen-free flame retardant EVA cable compound, China Plastics Industry, 37, 11, pp. 55-60, (2009)
  • [7] Hoffendahl C., Fontaine G., Duquesne S., Et al., The combination of aluminum trihydroxide (ATH) and melamine borate (MB) as fire retardant additives for elastomeric ethylene vinyl acetate (EVA), Polym. Degrad. Stab., 115, pp. 77-88, (2015)
  • [8] Gui H., Zhang X., Dong W., Et al., Flame retardant synergism of rubber and Mg(OH)<sub>2</sub> in EVA composites, Polymer, 48, pp. 2537-2541, (2007)
  • [9] Witkowski A., Stec A.A., Hull T.R., The influence of metal hydroxide fire retardants and nanoclay on the thermal decomposition of EVA, Polym.Degrad. Stab., 97, pp. 2231-2240, (2012)
  • [10] Zhang X., Xie L.S., Ma Y.L., Study on stretching effect in mixing section of two-rotor continuous mixers, China Plastics, 3, pp. 108-113, (2010)