[1]唐启恒,卢希珍,郭文静,等.三聚氰胺聚磷酸盐和次磷酸铝阻燃纤维板燃烧特性研究[J].林业工程学报,2020,5(06):29-35.[doi:10.13360/j.issn.2096-1359.201912022]
 TANG Qiheng,LU Xizhen,GUO Wenjing,et al.Research on the combustion characteristics of high density fiberboard treated with MPP and AP[J].Journal of Forestry Engineering,2020,5(06):29-35.[doi:10.13360/j.issn.2096-1359.201912022]
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三聚氰胺聚磷酸盐和次磷酸铝阻燃纤维板燃烧特性研究()
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《林业工程学报》[ISSN:2096-1359/CN:32-1862/S]

卷:
5
期数:
2020年06期
页码:
29-35
栏目:
木材科学与技术
出版日期:
2020-11-01

文章信息/Info

Title:
Research on the combustion characteristics of high density fiberboard treated with MPP and AP
文章编号:
2096-1359(2020)06-0029-07
作者:
唐启恒1卢希珍2郭文静1方露2*
1.中国林业科学研究院林业新技术研究所,北京100091;2.南京林业大学家居与工业设计学院,南京210037
Author(s):
TANG Qiheng1 LU Xizhen2 GUO Wenjing1 FANG Lu2*
1. Research Institute of Forestry New Technology, Chinese Academy of Forestry, Beijing 100091, China; 2. College of Furniture and Industrial Design, Nanjing Forestry University, Nanjing 210037, China
关键词:
高密度纤维板三聚氰胺聚磷酸盐次磷酸铝协同效应燃烧特性
Keywords:
high density fiberboards melamine pyrophosphate aluminum hypophosphite synergistic effect combustion characteristics
分类号:
S781.9;TQ325
DOI:
10.13360/j.issn.2096-1359.201912022
文献标志码:
A
摘要:
为了提升纤维板的阻燃性能,选用三聚氰胺聚磷酸盐(MPP)与次磷酸铝(AP)为阻燃剂,通过人造板热压工艺制备阻燃高密度纤维板(HDF)。采用锥形量热仪法研究阻燃剂对HDF燃烧过程中的点燃时间、热释放性能、质量变化、烟释放性能和烟气毒性的影响,探索两种阻燃剂组成的二元体系中MPP与AP的最佳质量比,并结合HDF燃烧后的炭层形貌分析其阻燃机理。结果表明:MPP和AP在燃烧过程中均会分解产生磷酸类物质,形成大量残炭。炭层能够有效隔绝氧气和热量传入材料的内部,减弱热量的传送速率,阻碍火焰的持续蔓延,从而提升HDF的阻燃性能。当MPP和AP的添加量为7.9%时,对HDF具有较好阻燃效果。与单一阻燃剂相比,经过复配之后,复合阻燃剂存在协同效应,HDF阻燃效果更为显著。综合分析得出,MPP和AP质量比为1∶2时,板材的阻燃性能最好,与未阻燃处理的板材相比,点燃时间从70 s上升到73 s,热释放速率峰值从392.3 kW/m2下降到319.7 kW/m2,总热释放量从55.1 MJ/m2下降到47.7 MJ/m2,残炭率从22.1%上升到29.5%。
Abstract:
Fiberboard has been well developed because of its good performance,but the inflammability still limits its wide applications. In order to improve the flameretardancy performance of fiberboard, melamine polyphosphate (MPP) and aluminum hypophosphite (AP) were used as flame retardants to prepare highdensity fiberboard (HDF) by the hotpressing process that was commonly used in the woodbased panel industry. The effects of flame retardants on the ignition time, heat release performance, mass change, smoke release performance, and smoke toxicity in the combustion process of HDF were examined using the cone calorimeter. The optimum mass ratio of MPP to AP in the binary system composed of two kinds of flame retardants was explored. The flameretardant mechanism was further analyzed based on the morphology of the carbon layer after the combustion of HDF. The results showed that both MPP and AP played a great role in improving the flame retardancy of HDF. MPP and AP decomposed into phosphoric acid and formed a large amount of residual carbon during combustion. The carbon layer can effectively isolate the oxygen and heat from the interior of the material, reduce the heat transfer rate, and hinder the continuous spread of flame, which significantly improved the flameretardant performance of HDF. In addition, MPP can effectively improve the ignition time of HDF, reduce the peak heat release rate, and had good smoke suppression ability. When the MPP and AP content reached 7.9%, it had a good flameretardant effect on HDF. Compared with the single flame retardant, the combination of MPP and AP exhibited synergistic effect and better flame retardancy, and the flameretardant effect of HDF was more significant. HDF without flame retardant was completely burned after the ignition, leaving only a small amount of ash. When MPP and AP at a constant mass ratio of 1∶2 were added into the HDF, the panels showed the most significant flameretardant efficiency. When the mass ratio of MPP and AP was 1∶2, the HDF had the best flameretardant performance. Compared to the control sample, the ignition time of HDF increased from 70 s to 73 s because of the addition of MPP/AP, indicating that MPP and AP had a good ability to prohibit the combustion of HDF. In addition, the peak heat release rate and the total heat release value of HDF decreased from 392.3 kW/m2 and 55.1 MJ/m2 to 319.7 kW/m2 and 47.7 MJ/m2, respectively, after the addition of flameretardant, indicating that the fire density decreased. Furthermore, the residual char increased from 22.1% to 29.5%.

相似文献/References:

[1]宋孝金,叶忠华,刘晓辉,等.竹木质高密度纤维板制造工艺研究[J].林业工程学报,2005,19(06):42.
[2]唐启恒,方露,郭文静*.MPP和ADP复合阻燃剂配比对竹纤维/聚丙烯复合材料性能的影响[J].林业工程学报,2020,5(04):87.[doi:10.13360/j.issn.2096-1359.201908031]
 TANG Qiheng,FANG Lu,GUO Wenjing*.Effect of the mixture ratio of MPP/ADP composites flame retardant on the properties of bamboo/polypropylene composites[J].Journal of Forestry Engineering,2020,5(06):87.[doi:10.13360/j.issn.2096-1359.201908031]

备注/Memo

备注/Memo:
收稿日期:2019-12-17? ? ?修回日期:2020-06-15? ??
基金项目:中央级公益性科研院所基本科研业务费专项资金(CAFYBB2018SZ014)。
作者简介:唐启恒,男,助理研究员,研究方向为透明木材和高强度模压材料。通信作者:方露,女,讲师。E-mail:fanglu@njfu.edu.cn
更新日期/Last Update: 2020-11-11