包括UL94实验在内的一些聚合物燃烧实验被广泛用于评价火灾危害和阻燃性能,但同一产品的UL94等级与其他燃烧实验得出的阻燃级别有时相差较大。文中综述了UL94等级与锥形量热仪、微型量热仪和氧指数实验结果的关联关系,论述其间存在的关联性的理论基础及影响关联程度高低的因素,并建议对UL94实验条件、不稳定燃烧过程和滴落行为作深入细致的研究,以便更好地理解UL94实验与其它实验之间的异同。
Some burning tests including the UL94 test are applied for screening flame retardant formulations and assessing fire hazards.However,sometimes the results of different burning experiments correspond to distinct flame retardant level.In this paper,the correlations between the UL94 test and other fire tests including the cone calorimeter test,the micro-scale calorimeter test and the limiting oxygen index test were reviewed.The theoretical derivations for understanding the correlations were presented.The factors influence on the effectiveness of the correlations were also discussed.It is suggested that the test conditions such as the heat flux,the unsteady burning process and the dripping behaviors encounter in the UL94 test should be studied carefully for further understanding the correlations between the UL94 test and other fire tests.
参考文献
| [1] | Robert G. Bill Jr.;Paul A. Croce .The International FORUM of Fire Research Directors: A position paper on small-scale measurements for next generation standards[J].Fire safety journal: An international journal devoted to research on fire safety science and engineering,2006(7):536-538. |
| [2] | Alexander B. Morgan .Flame retarded polymer layered silicate nanocomposites: a review of commercial and open literature systems[J].Polymers for advanced technologies,2006(4):206-217. |
| [3] | Schartel B;Pawlowski KH;Lyon RE .Pyrolysis combustion flow calorimeter: A tool to assess flame retarded PC/ABS materials?[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,2007(1/2):1-14. |
| [4] | Convective Heat Transfer of the Bunsen Flame in the UL94 Vertical Burning Test for Polymers[J].Journal of fire sciences,2010(4):337-356. |
| [5] | Analysis and Modeling of Ignitability of Polymers in the UL-94 Vertical Burning Test Condition[J].Journal of fire sciences,2009(6):561. |
| [6] | Yong Wang;Feng Zhang;Xilei Chen;Yang Jin;Jun Zhang .Burning and dripping behaviors of polymers under the UL94 vertical burning test conditions[J].Fire and materials,2010(4):p.203. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%