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
  • [1] Synergistic Flame-Retardant Effect of Halloysite Nanotubes on Intumescent Flame Retardant in LDPE
    Zhao, Jing
    Deng, Cheng-Liang
    Du, Shuang-Lan
    Chen, Li
    Deng, Cong
    Wang, Yu-Zhong
    JOURNAL OF APPLIED POLYMER SCIENCE, 2014, 131 (07)
  • [2] Flame-Retardant Effect of Sepiolite on an Intumescent Flame-Retardant Polypropylene System
    Liu, Yun
    Zhao, Jing
    Deng, Cheng-Liang
    Chen, Li
    Wang, De-Yi
    Wang, Yu-Zhong
    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2011, 50 (04) : 2047 - 2054
  • [3] Synergistic flame retardant effect of BiFeO3 in intumescent flame-retardant polypropylene composites
    Han, Lijing
    Wu, Weihong
    Qi, Yanxia
    Qu, Hongqiang
    Xu, Jianzhong
    POLYMER COMPOSITES, 2017, 38 (12) : 2771 - 2778
  • [4] Synergistic effect of halloysite nanotubes on flame resistance of intumescent flame retardant poly(butylene succinate) composites
    Wang, Yuhai
    Liu, Cong
    Shi, Xiaohua
    Liang, Jiayuan
    Jia, Zhixin
    Shi, Guang
    POLYMER COMPOSITES, 2019, 40 (01) : 202 - 209
  • [5] Intumescent Flame Retardant/Nano-CuO Synergistic Flame-Retardant Epoxy Resin
    Lu L.
    Zhao J.
    Su Q.
    Wang H.
    Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering, 2020, 36 (10): : 63 - 70and78
  • [6] The synergistic flame-retardant effect of O-MMT on the intumescent flame-retardant PP/CA/APP systems
    Liu, Yun
    Wang, Jun-Sheng
    Deng, Cheng-Liang
    Wang, De-Yi
    Song, Yan-Peng
    Wang, Yu-Zhong
    POLYMERS FOR ADVANCED TECHNOLOGIES, 2010, 21 (11) : 789 - 796
  • [7] Synergistic effect of cocondensed nanosilica in intumescent flame-retardant polypropylene
    Ding, Siyin
    Liu, Peng
    Gao, Chong
    Wang, Feng
    Ding, Yanfen
    Zhang, Shimin
    Yang, Mingshu
    POLYMERS FOR ADVANCED TECHNOLOGIES, 2019, 30 (04) : 1116 - 1125
  • [8] Flame retardant effect and mechanism of benzoxazine as synergist in intumescent flame-retardant polyoxymethylene
    Lu, Zhehong
    Feng, Weili
    Kang, Xinglong
    Wang, Junliang
    Xu, Hao
    Li, Jiantong
    Wang, Yanpeng
    Liu, Baoying
    Fang, Xiaomin
    POLYMERS FOR ADVANCED TECHNOLOGIES, 2020, 31 (11) : 2512 - 2525
  • [9] A novel intumescent flame-retardant LDPE system and its thermo-oxidative degradation and flame-retardant mechanisms
    Liu, Yun
    Wang, De-Yi
    Wang, Jun-Sheng
    Song, Yan-Peng
    Wang, Yu-Zhong
    POLYMERS FOR ADVANCED TECHNOLOGIES, 2008, 19 (11) : 1566 - 1575
  • [10] INTUMESCENT FLAME-RETARDANT FOR POLYMERS
    MONTAUDO, G
    PUGLISI, C
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1989, 197 : 16 - MACR
12345