全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

蒙脱土/聚苯乙烯复合材料的热分解成炭行为

, PP. 9-18

Keywords: 聚苯乙烯,蒙脱土,复合材料,成炭行为,阻燃性能

Full-Text   Cite this paper   Add to My Lib

Abstract:

将聚苯乙烯(PS)树脂与不同种类蒙脱土(MMT)进行熔融复合制备MMT/PS复合材料,通过X射线衍射(XRD)和高分辨透射电镜(HRTEM)对复合材料的微观结构进行了研究。采用SEM、EDX、XRD、氧指数法和锥形量热法研究了复合材料的热分解成炭行为和燃烧性能。结果表明:用蒙脱土原土(NaMMT)制备的NaMMT/PS复合材料是一种简单物理混合物,用有机蒙脱土(OMMT)制备的OMMT/PS复合材料是一种插层-部分剥离型纳米复合材料。MMT与PS质量比为6:100时,OMMT/PS复合材料的热释放速率峰值和平均值分别只有NaMMT/PS复合材料相应值的70.7%和67.4%,火灾性能指数(FPI)是后者的1.2倍,氧指数比后者增加1.0%,热分解残余物表面碳元素含量是后者的2.5倍。OMMT/PS复合材料热分解后在材料表面生成一层厚厚的致密、连续的含碳硅酸盐残余物层,起到良好的阻燃作用,而NaMMT/PS复合材料几乎没有成炭能力,其热分解产物全部来自NaMMT本身的热分解,阻燃性能很差。

References

[1]  Qin H L, Zhang S M, Zhao C G, et al. Flame retardant mechanism of polymer/clay nanocomposites based on polypropylene [J]. Polymer, 2005, 46(19): 8386-8395.
[2]  Kiliaris P, Papaspyrides C D. Polymer/layered silicate (clay) nanocomposites: An overview of flame retardancy [J]. Progress in Polymer Science, 2010, 35(7): 902-958.
[3]  Hao X G, Gai G S, Liu J P, et al. Flame retardancy and antidripping effect of OMT/PA nanocomposites [J]. Materials Chemistry and Physics, 2006, 96(1): 34-41.
[4]  Morgan A B, Harris Jr R H T, Kashiwagi T, et al. Flammability of polysturene layered silicate nanocomposites: Carbonaceous char formation [J]. Fire and Materials, 2002, 26(2): 247-253.
[5]  Gilman J W. Flammability and thermal stability studies of polymer layered-silicate (clay) nanocomposites [J]. Applied Clay Science, 1999, 15(1): 31-49.
[6]  Zanetti M, Camino G, Mulhaupt R. Combustion behaviour of EVA/fluorohectorite nanocomposites [J]. Polymer Degradation and Stability, 2001, 74(3): 413-417.
[7]  Laoutid F, Bonnaud L, Alexandre M, et al. New prospects in flame retardant polymer materials: From fundamentals to nanocomposites [J]. Materials Science and Engineering R, 2009, 63(3): 100-125.
[8]  Qin H L, Su Q S, Zhang S M, et al. Thermal stability and flammability of polyamide 66/montmorillonite nanocomposites [J]. Polymer, 2003, 44(24): 7533-7538.
[9]  Wang J Q, Du J X, Zhu J, et al. An XPS study of the thermal degradation and flame retardant mechanism of polystyrene-clay nanocomposites [J]. Polymer Degradation and Stability, 2002, 77(2): 249-252.
[10]  Hu Y, Tang Y, Song L. Polypropylene/clay nanocomposites and their application in flame retardancy [J]. Polymers for Advanced Technologies, 2006, 17(4): 235-245.
[11]  Bourbigot S, Duquesne S, Jama C. Polymer nanocomposites: How to reach low flammability [J]. Macromolecular Symposia, 2006, 233(1): 180-190.
[12]  胡 源, 宋 磊. 阻燃聚合物纳米复合材料 [M]. 北京: 化学工业出版社, 2008: 76-77.
[13]  杨子芹, 刘卫卫, 杨小兵, 等. 纳米填料改性丁基橡胶复合材料的力学性能、 芥子气防护性能和燃烧性能 [J]. 复合材料学报, 2009, 26(6): 25-30. Yang Ziqin, Liu Weiwei, Yang Xiaobing, et al. Mechanical properties, mustard protection and flammability of nanofillers reinforced isobutylene-isoprene rubber composites [J]. Acta Materiae Compositae Sinica, 2009, 26(6): 25-30.
[14]  黄国波, 高建荣, 贾建洪, 等. 有机磷氮系-蒙脱土/LDPE纳米复合材料的制备及阻燃性能 [J]. 复合材料学报, 2010, 27(6): 45-52. Huang Guobo, Gao Jianrong, Jia Jianhong, et al. Preparation and flammability properties of phosphorus-nitrogen-montmorillonite/LDPE nanocomposites [J]. Acta Materiae Compositae Sinica, 2010, 27(6): 45-52.
[15]  刘继纯, 付梦月, 李晴媛, 等. 有机蒙脱土和氢氧化镁对PS的协同阻燃作用研究 [J]. 中国塑料, 2008, 22(12): 84-87. Liu Jichun, Fu Mengyue, Li Qingyuan, et al. Synergistic effect of OMMT and MH on the flame retardancy of PS [J]. China Plastics, 2008, 22(12): 84-87.
[16]  刘继纯, 陈 权, 井蒙蒙, 等. 有机蒙脱土/聚苯乙烯复合材料的燃烧性能与阻燃机制 [J]. 复合材料学报, 2011, 28(6): 50-58. Liu Jichun, Chen Quan, Jing Mengmeng, et al. Fire performance and flame-retardant mechanism of organic montmorillonite/polystyrene composites [J]. Acta Materiae Compositae Sinica, 2011, 28(6): 50-58.
[17]  Carty P, White S. Char formation in polymer blends [J]. Polymer, 1994, 35(2): 343-347.
[18]  Carty P, White S. Iron-chlorine interaction in blends of poly(vinyl chloride) and acrylonitrile-butadiene-styrene containing basic iron (Ⅲ) oxide [J]. Polymer, 1995, 36(5): 1109-1111.
[19]  Carty P, White S. Flammability of polymer blends [J]. Polymer Degradation and Stability, 1996, 54(2): 379-381.
[20]  Lu H D, Wilkie C A, Ding M, et al. Flammability performance of poly(vinyl alcohol) nanocomposites with zirconium phosphate and layered silicates [J]. Polymer Degradation and Stability, 2011, 96(7): 1219-1224.
[21]  Wang Z Y, Liu Y, Wang Q. Flame-retardant polyoxymethylene with aluminium hydroxide/melamine/novolac resin synergistic system [J]. Polymer Degradation and Stability, 2010, 95(6): 945-954.
[22]  刘继纯, 陈 权, 井蒙蒙, 等. PS/PPO合金的燃烧行为研究 [J]. 塑料科技, 2011, 39(4): 35-39. Liu Jichun, Chen Quan, Jing Mengmeng, et al. Combustion behavior of PS/PPO alloy [J]. Plastics Science and Technology, 2011, 39(4): 35-39.
[23]  李 斌, 王建祺. 聚合物材料燃烧性和阻燃性的评价——锥形量热仪(Cone)法 [J]. 高分子材料科学与工程, 1998, 14(5): 15-19. Li Bin, Wang Jianqi. Utilization of cone calorimeter for the appraisal of the flammability and flame retardancy of polymeric materials [J]. Polymer Materials Science and Engineering, 1998, 14(5): 15-19.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133