引用本文:
黄宝晟, 李峰, 张慧, 矫庆泽, 段雪, 郝建薇. 纳米双羟基复合金属氧化物的阻燃性能[J]. 应用化学,
2002, 19(1): 71-75.
Citation: HUANG Bao-Sheng, LI Feng, ZHANG Hui, JIAO Qing-Ze, DUAN Xue, HAO Jian-Wei. Flame Retarding Property of a Nano-scale Layered Double Hydroxides for PVC[J]. Chinese Journal of Applied Chemistry, 2002, 19(1): 71-75.
Citation: HUANG Bao-Sheng, LI Feng, ZHANG Hui, JIAO Qing-Ze, DUAN Xue, HAO Jian-Wei. Flame Retarding Property of a Nano-scale Layered Double Hydroxides for PVC[J]. Chinese Journal of Applied Chemistry, 2002, 19(1): 71-75.
纳米双羟基复合金属氧化物的阻燃性能
摘要:
研究了纳米尺寸双羟基复合金属氧化物(MgAl-CO3-LDH)的结构及其对聚氯乙烯(PVC)复合材料的阻燃抑烟性能.通过X射线粉末衍射、扫描电子显微镜、热分析、粒度分析等手段对LDH进行了表征.结果表明,LDH粒径约为50~100nm.用透射电镜考察了LDH与PVC的复合物尺寸及形貌特征,得出改性的LDH在PVC中能以一次粒子均匀分散.将氧指数、UL-94垂直燃烧测试结果与文献值对比,实验所制备的纳米LDH对软PVC具有良好的阻燃效果.烟密度测试结果表明,纳米LDH是软PVC良好的抑烟剂,每100份软PVC仅添加20~40份LDH,就可使软PVC的产烟速率及最大烟密度下降约40%.
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关键词:
- 双羟基复合金属氧化物
- / 阻燃剂
- / 抑烟剂
English
Flame Retarding Property of a Nano-scale Layered Double Hydroxides for PVC
Abstract:
The structure of nano-scale layered double hydroxides MgAl-CO3-LDH and its flame retarding properties for PVC have been studied. LDH has been characterized by X-ray powder diffraction, scanning electronic micrograph observations and thermal analysis. The particle size of LDH was 50~100 nm. LDH-PVC composite has been characterized by electronic micrograph and the modified-LDH was found fairly distributed in PVC. The LDH showed flame retarding effect for PVC and appeared a favorable smoke suppressant. The smoke generation rate and the maximum density of smoke of LDH-PVC composite decreased by 40% with 20~40 phr LDH in comparison with unique PVC.
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Key words:
- nano-scale
- / layered double hydroxide
- / flame retardant
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