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[1]汪苏平,海吉忠,杨小波,等.有机胺法制备氢氧化镁及其阻燃性能[J].武汉工程大学学报,2016,38(4):364-368.[doi:10. 3969/j. issn. 1674?2869. 2016. 04. 010]
 WANG Suping,HAI Jizhong,YANG Xiaobo,et al.Preparation and Its Antiflaming Properties of Magnesium Hydroxide by Organic-Amine Method[J].Journal of Wuhan Institute of Technology,2016,38(4):364-368.[doi:10. 3969/j. issn. 1674?2869. 2016. 04. 010]
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有机胺法制备氢氧化镁及其阻燃性能(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
38
期数:
2016年4期
页码:
364-368
栏目:
材料科学与工程
出版日期:
2016-08-28

文章信息/Info

Title:
Preparation and Its Antiflaming Properties of Magnesium Hydroxide by Organic-Amine Method
作者:
汪苏平1海吉忠2杨小波2张志君2吴江渝1陈 喆1张 勇1*
1. 武汉工程大学材料科学与工程学院,湖北 武汉 430074; 2. 青海盐湖工业股份有限公司青海盐湖资源综合利用重点实验室,青海 格尔木 816000
Author(s):
WANG Suping1 HAI Jizhong2 YANG Xiaobo2 ZHANG Zhijun2 WU Jiangyu1 CHEN Zhe1 ZHANG Yong1*
1. School of Materials Science and Engineering, Wuhan Institute of Technoloy, Wuhan 430074, China; 2. Qinghai Salt Lake Industry Group Company Limited, Key Laboratory of Salt Lake Resources Integrated Utilization of Qinghai ,Geermu 816000, China
关键词:
氢氧化镁有机胺法阻燃机理粒径形貌
Keywords:
magnesium hydroxide organic-amine method antiflaming mechanism size morphology
分类号:
O611.6
DOI:
10. 3969/j. issn. 1674?2869. 2016. 04. 010
文献标志码:
A
摘要:
以二正丁胺代替传统无机碱性前驱物作为沉淀剂的方法制备氢氧化镁. 通过控制单一变量法,得到了最佳的实验条件,对氢氧化镁产品进行了形貌表征和粒径分析,并对氢氧化镁的阻燃机理进行了探索. 研究表明,通过该方法制备氢氧化镁的最佳实验条件为:反应温度70 ℃左右,反应时间50 min左右,搅拌速率400 r/min;制得的氢氧化镁为片状结晶,尺寸在1.8 μm左右, 产品各项性能符合当前工业要求,且沉淀剂可回收二次利用,有望改善氢氧化镁的传统制备工艺. 通过热重分析与模拟燃烧实验,推测氢氧化镁的阻燃机理为:一方面提高了材料的热分解温度,另一方面氢氧化镁分解产生的氧化镁同碳形成隔热隔氧层,共同达到阻燃效果.
Abstract:
Magnesium hydroxide was prepared by using di-n-butylamine as a precipitating agent instead of the traditional inorganic basic precursor. The reaction conditions were optimized by employing the single variable method. The morphology and particle size of the obtained magnesium hydroxide were characterized, and its antiflaming mechanism was investigated. The results show that the optimal experimental conditions for the preparation of magnesium hydroxide are as follows: reaction temperature of 70 ℃, reaction time of 50 minutes, and stirring rate of 400 r/min. The magnesium hydroxide has a form of lamellar crystal with an average diameter of 1.8 μm, and its performances meet the industrial requirements. The precipitant can be recovered and recycled, thus this method is expected to improve the traditional technology for magnesium hydroxide preparation. The results of thermal gravimetric analysis and simulated combustion test suggest that the antiflaming mechanism of magnesium hydroxide can be ascribed to: it improves the thermal decomposition temperature of the used materials, and the magnesium oxide produced by the decomposition of magnesium hydroxide with the carbon forms a layer to achieve thermal insulation and oxygen exclusion

参考文献/References:

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备注/Memo:
更新日期/Last Update: 2016-07-29