新型单组份磷-氮膨胀型阻燃剂/OMMT 对尼龙6热稳定性能的影响及其协同阻燃效果

王超; 李迎春; 胡国胜; 曹东豪

doi:10.1016/S1872-5805(15)60184-6

新型单组份磷-氮膨胀型阻燃剂/OMMT 对尼龙6热稳定性能的影响及其协同阻燃效果

doi: 10.1016/S1872-5805(15)60184-6

1.
中北大学材料科学与工程学院, 山西太原 030051;
2.
广西民族大学教育科学学院, 广西南宁 530006

基金项目: 山西省自然科学基金(20121010).

详细信息

通讯作者:
李迎春,博士,教授. E-mail: liyingchun0725@126.com

中图分类号: TQ127.1⁺1
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- 被引次数: 0
出版历程
- 收稿日期: 2014-11-08
- 录用日期: 2015-05-04
- 修回日期: 2015-02-21
- 刊出日期: 2015-04-28

Synergistic flame retardant effects of composites containing organic montmorillonite, Nylon 6 and 2-cyclic pentaerythritoloctahydrogen tetraphosphate-4,6-benzene sulfonic acid sodium ammion-triazine

1.
School of Material science and engineering, North University of China, Taiyuan 030051, China;
2.
Guangxi University for Nationalities, Nanning 530006, China

Funds: Shanxi Natural Science Foundation (20121010).

摘要

摘要: 合成出新型单组份磷-氮膨胀型阻燃剂2-环季戊四醇磷酸酯-4,6-对氨基苯磺酸钠均三嗪(CTOB),通过FT-IR, ¹H NMR和 ³¹P NMR对其结构进行表征。以CTOB与有机蒙脱土(OMMT)为原料,制备出阻燃型CTOB/ OMMT/ Nylon 6复合材料。热重分析表明:CTOB和OMMT的加入能有效提高尼龙6的热稳定性能和成炭性能,通过极限氧指数(LOI)、锥形量热、垂直燃烧实验(UL-94)和TGA对CTOB/ OMMT/ Nylon 6复合材料的阻燃性能进行研究。结果表明,CTOB和 OMMT在尼龙6中表现出良好的协同阻燃效果,CTOB/OMMT/ Nylon 6的氧指数可达28.0%,垂直燃烧性能达到UL-94 V-0级,阻燃后的尼龙6其PHRR 和 THR分别下降了65.7%和49.3%。CTOB/ OMMT/ Nylon 6燃烧后,表面可生成致密性良好的膨胀炭层,膨胀炭层的形成是有效提高Nylon 6阻燃性能的关键因素。
- 尼龙6 /
- 膨胀型阻燃剂 /
- 蒙脱土
Abstract: A novel P-N containing intumescent flame retardant, 2-cyclic pentaerythritoloctahydrogen tetraphosphate-4,6-benzene sulfonic acid sodium ammion-triazine (CTOB) was synthesized and used as an additive in intumescent flame retardant composites containing organic montmorillonite (OMMT) and Nylon 6. The thermal stability and flammability properties of Nylon 6, CTOB, OMMT and their composites were investigated by TGA, limiting oxygen index (LOI) and cone calorimeter tests. Synergistic effects between CTOB and OMMT in the Nylon 6/CTOB/OMM composite were observed. A combination of CTOB and OMMT improved the thermal stability and the flammability properties of Nylon 6 and increased the LOI value to 28.0%. The average and peak heat release rates of the ternary composite were reduced by about 65.7 and 49.3%, respectively, compared with those of Nylon 6. The residue generated after the cone calorimeter tests upon combustion of the ternary composite was a compact and dense char as revealed by SEM, which is critically important for an excellent flame retardant.
- Nylon 6 /
- Intumescent flame retardant /
- Organic montmorillonite

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