Synergistic flame-retardant effect of halloysite nanotubes on intumescent flame retardant in LDPE

被引：0
|
作者：
机构：
[1] Zhao, Jing
[2] Deng, Cheng-Liang
[3] Du, Shuang-Lan
[4] Chen, Li
[5] Deng, Cong
[6] Wang, Yu-Zhong
来源：
Deng, C. (dengcong@scu.edu.cn) | 1600年 / John Wiley and Sons Inc, Postfach 10 11 61, 69451 Weinheim, Boschstrabe 12, 69469 Weinheim, Deutschland, 69469, Germany卷 / 131期
关键词：
Synergistic flame-retardant effect of halloysite nanotubes (HNTs) on an intumescent flame retardant (IFR) in low-density polyethylene (LDPE) was investigated by limited oxygen index (LOI); vertical burning test (UL-94); thermogravimetric analysis (TGA); cone calorimeter (CC) test; and scanning electronic microscopy (SEM). The results of LOI and UL-94 tests indicated that the addition of HNTs could dramatically increase the LOI value of LDPE/IFR in the case that the mass ratio of HNTs to IFR was 2/28 at 30 wt % of total flame retardant. Moreover; in this case the prepared samples could pass the V-0 rating in UL-94 tests. CC tests results showed that; for LDPE/IFR; both the heat release rate and the total heat release significantly decreased because of the incorporation of 2 wt % of HNTs. SEM observations directly approved that HNTs could promote the formation of more continuous and compact intumescent char layer in LDPE/IFR. TGA results demonstrated that the residue of LDPE/IFR containing 2 wt % of HNTs was obviously more than that of LDPE/IFR at the same total flame retardant of 30 wt % at 700°C under an air atmosphere; and its maximum decomposing rate was also lower than that of LDPE/IFR; suggesting that HNTs facilitated the charring of LDPE/IFR and its thermal stability at high temperature in this case. Both TGA and SEM results interpreted the mechanism on the synergistic effect of HNTs on IFR in LDPE; which is that the migration of HNTs to the surface during the combustion process led to the formation of a more compact barrier; resulting in the promotion of flame retardancy of LDPE/IFR. In addition; the mechanical properties of LDPE/IFR/HNTs systems were studied; the results showed that the addition of 0.5-2 wt % of HNTs could increase the tensile strength and the elongation at break of LDPE/IFR simultaneously. © 2013 Wiley Periodicals; Inc;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
相关论文
共 50 条
  • [11] Reinforcing and Flame-Retardant Effects of Halloysite Nanotubes on LLDPE
    Jia, Zhixin
    Luo, Yuanfang
    Guo, Baochun
    Yang, Bingtao
    Du, Mingliang
    Jia, Demin
    POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING, 2009, 48 (06) : 607 - 613
  • [12] Synergistic Effect of SiO2 on Intumescent Flame-retardant Polypropylene
    Li, Na
    Xia, Yin
    Mao, Zongwen
    Wang, Liang
    Guan, Yong
    Zheng, Anna
    POLYMERS & POLYMER COMPOSITES, 2013, 21 (07): : 439 - 447
  • [13] SYNERGISTIC EFFECT OF METAL OXIDES ON INTUMESCENT FLAME-RETARDANT PP SYSTEMS
    Wu Na
    Yang Rongjie
    Hao Jianwei
    Liu Guosheng
    ACTA POLYMERICA SINICA, 2009, (12): : 1205 - 1210
  • [14] The Synergistic Effect of Ionic Liquid-Modified Expandable Graphite and Intumescent Flame-Retardant on Flame-Retardant Rigid Polyurethane Foams
    Chen, Yongjun
    Luo, Yuanfang
    Guo, Xiaohui
    Chen, Lijuan
    Jia, Demin
    MATERIALS, 2020, 13 (14)
  • [15] Synergistic Flame Retardant Effect of Barium Phytate and Intumescent Flame Retardant for Epoxy Resin
    Wang, Linyuan
    Wei, Yue
    Deng, Hongbo
    Lyu, Ruiqi
    Zhu, Jiajie
    Yang, Yabing
    POLYMERS, 2021, 13 (17)
  • [16] Synergistic effect of organo-montmorillonite on intumescent flame-retardant PLA
    Li, Linshan
    Mao, Xiaojun
    Ju, Rui
    Chen, Yajun
    Qian, Lijun
    FERROELECTRICS, 2018, 527 (01) : 25 - 36
  • [17] Synergistic Flame Retardant Effect of an Intumescent Flame Retardant Containing Boron and Magnesium Hydroxide
    Ai, Lianghui
    Chen, Shanshan
    Zeng, Jinming
    Yang, Liu
    Liu, Ping
    ACS OMEGA, 2019, 4 (02): : 3314 - 3321
  • [18] Microencapsulation of intumescent flame-retardant agent: Application to flame-retardant natural rubber composite
    Wang, Jincheng
    Chen, Yuehui
    JOURNAL OF APPLIED POLYMER SCIENCE, 2007, 104 (03) : 1828 - 1838
  • [19] Microencapsulation of intumescent flame-retardant agent: Application to flame-retardant natural rubber composite
    Wang, Jincheng
    Chen, Yuehui
    Journal of Applied Polymer Science, 2007, 104 (03): : 1828 - 1838
  • [20] Flame-Retardant Performance of Polystyrene Enhanced by Polyphenylene Oxide and Intumescent Flame Retardant
    Yan, Hong
    Dong, Bo
    Du, Xiangxiang
    Ma, Senyuan
    Wei, Liqiao
    Xu, Bingshe
    POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING, 2014, 53 (04) : 395 - 402
12345