含阻燃特性原子多元醇对硬质聚氨酯性能的影响
作者:
作者单位:

1.同济大学 先进土木工程材料教育部重点实验室,上海 201804;2.同济大学 材料科学与工程学院,上海 201804

作者简介:

刘 琳(1964—),女,江苏海安人,同济大学副教授,硕士生导师,博士.E-mail:llsp@tongji.edu.cn

中图分类号:

TQ328.3


Influence of Flame-Retardant Atom-Containing Polyols on Properties of Rigid Polyurethane
Author:
Affiliation:

1.Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education,Tongji University,Shanghai 201804, China;2.School of Material Science and Engineering,Tongji University,Shanghai 201804, China

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献 [14]
  • |
  • 相似文献 [20]
  • | | |
  • 文章评论
    摘要:

    基于市场上现有的商业化原材料,通过改变硬质聚氨酯泡沫配方中多元醇的类型,寻找最佳阻燃性能的配方.选取常规高羟值聚酯多元醇A、常规低羟值聚酯多元醇B、含氮聚酯多元醇C、含溴和氯阻燃聚醚多元醇D、含溴阻燃聚醚多元醇E作为硬质聚氨酯泡沫配方中的多元醇组分,通过测定泡沫氧指数等阻燃性能,来研究多元醇对硬质聚氨酯泡沫阻燃性能的影响.结果表明:由于含氮聚酯多元醇C结构中含有三(2-羟乙基)异氰脲酸酯基团,同时具有氮和异氰脲酸酯的阻燃特性,因此其制得的硬质聚氨酯泡沫氧指数达到27.5%,阻燃性能最佳,同时具有环保、低毒的优点.

    Abstract:

    Rigid polyurethane formulation with better flame retardancy was designed by changing the type of polyol in the formulation of rigid polyurethane based on current commercial raw materials. Selected high hydroxyl value conventional polyester polyol A, low hydroxyl value conventional polyester polyol B, nitrogen-containing polyester polyol C, chlorinated and brominated flame-retardant polyether polyol D and brominated flame-retardant polyether polyol E were used as the part of the polyol in the formulation. The influence of polyol formulation on the flame retardancy of rigid polyurethane insulation material was studied by testing oxygen index etc. The results show that nitrogen-containing polyester polyol C which contains tris-2-hydroxyethyl-isocyanurate provides rigid polyurethane foam with better flame retardancy property and its oxygen index is 27.5% due to flame retardancy of both nitrogen and polyisocyanurate foam, meanwhile, it is green and low toxic.

    表 3 硬质聚氨酯模塑泡沫的阻燃性能Table 3 Flame property of mould foam of rigid polyurethane
    表 2 硬质聚氨酯模塑泡沫整体密度和芯密度Table 2 Overall density and core density of mould foam of rigid polyurethane
    图1 聚酯多元醇和含溴阻燃聚醚多元醇E的分子结构Fig.1 Molecular structure of polyester polyol and brominated flame-retardant polyether polyol E
    图2 三(2-羟乙基)异氰脲酸酯的分子结构Fig.2 Molecular structure of tris-2-hydroxyethyl-isocyanurate
    图3 硬质聚氨酯模塑泡沫的SEM图Fig.3 SEM micrographs of mould foam of rigid polyurethane
    表 6 硬质聚氨酯模塑泡沫在极限温湿度条件下的线性尺寸稳定性Table 6 Linear dimensional stability of mould foam of rigid polyurethane under limiting temperature and humidity
    表 4 硬质聚氨酯模塑泡沫压缩强度Table 4 Compressive strength of mould foam of rigid polyurethane
    表 1 硬质聚氨酯自由泡沫反应性和芯密度Table 1 Reaction and core density of free rise foam of rigid polyurethane
    表 5 硬质聚氨酯模塑泡沫热导率和闭孔率Table 5 Thermal conductivity and close cell content of mould foam of rigid polyurethane
    参考文献
    [1] SOMARATHNA H M C C, RAMAN S N, MOHOTTI D, et al. The use of polyurethane for structural and infrastructural engineering applications: A state-of-the-art review[J]. Construction and Building Materials, 2018, 190: 995-1014.
    [2] 矫立超,戎贤,孔祥飞,等.聚氨酯泡沫在节能建筑中的应用[J]. 工程塑料应用, 2019, 47(3): 140-144.
    [3] 靳伟,蔡敬林,余垠海,等.浅析硬泡聚氨酯在建筑节能领域的应用[J].建筑知识, 2010, 30(3): 81-82.
    [4] USTA N. Investigation of fire behavior of rigid polyurethane foams containing fly ash and intumescent flame retardant by using a cone calorimeter[J]. Journal of Applied Polymer Science, 2012, 124(4):3372-3382.
    [5] 刘益军,柏松.聚氨酯泡沫塑料的阻燃[J].塑料工业,2003, 31(10): 1-4,15.
    [6] 陈一民,刘芳,周婵华,等.全水发泡非卤阻燃聚氨酯硬质泡沫塑料的制备与性能[J].聚氨酯工业,2007,22(1):24-27.
    [7] 王新刚,李风,张泽江.浅谈聚氨酯硬泡保温材料阻燃技术[J].广州化工,2012, 40(24): 4-6.
    [8] RAO W H, XU H X, XU Y J, et al. Persistently flame-retardant flexible polyurethane foams by a novel phosphorus-containing polyol[J]. Chemical Engineering Journal, 2018, 343: 198-206.
    [9] YUAN Y, MA C, SHI Y Q, et al. Highly-efficient reinforcement and flame retardancy of rigid polyurethane foam with phosphorus-containing additive and nitrogen-containing compound[J]. Materials Chemistry and Physics, 2018, 211: 42-53.
    [10] 丁雪佳,薛海蛟,李洪波,等.硬质聚氨酯泡沫塑料研究进展[J].化工进展,2009,28(2):278-282.
    [11] ZATORSKI W, BRZOZOWSKI Z K, KOLBRECKI A. New developments in chemical modification of fire-safe rigid polyurethane foams[J]. Polymer Degradation and Stability, 2008, 93: 2071-2076.
    [12] LI M J, LUO J, HUANG Y H, et al. Recycling of waste poly(ethylene terephthalate) into flame-retardant rigid polyurethane foams[J]. Journal of Applied Polymer Science,2014, 131(19): 40857.
    [13] 滕广远,陈俊宏.阻燃剂的现状及发展趋势[J].化工时刊, 2018,32(4):28-32.
    [14] DOHRN R, FONSECA J M, ALBERS R, et al. Thermal conductivity of polyurethane foam cell gases: Improved transient hot wire cell-data of isopentane + n-pentane mixtures - Extended Wassiljewa-model[J]. Fluid Phase Equilibria, 2007, 261(1/2): 41-49.
    引证文献
    网友评论
    网友评论
    分享到微博
    发 布
引用本文

刘琳,王晓俊.含阻燃特性原子多元醇对硬质聚氨酯性能的影响[J].建筑材料学报,2021,24(5):1011-1017

复制
分享
文章指标
  • 点击次数:163
  • 下载次数: 676
  • HTML阅读次数: 24
  • 引用次数: 0
历史
  • 收稿日期:2020-06-11
  • 最后修改日期:2020-07-09
  • 录用日期:2020-07-10
  • 在线发布日期: 2021-12-15
文章二维码