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无机材料学报

无机材料学报

• 研究论文 • 上一篇    

红外光谱分析在AlN流延浆料分散性能测试中的应用

黄河激; 周和平; 汪雨荻   

  1. 清华大学材料科学与工程系新型陶瓷与精细工艺国家重点实验室 北京 100084
  • 收稿日期:2001-03-21 修回日期:2001-04-26 出版日期:2002-03-20 网络出版日期:2002-03-20

Application of Infrared Analysis in Testing the Dispersant Property of AlN Tape Casting Slurry

HUANG He-Ji; ZHOU He-Ping; WANG Yu-Di   

  1. State Key Laboratory of New Ceramics and Fine Processing; Department of Materials Science and Engineering; Tsinghua University; Beijing 100084; China
  • Received:2001-03-21 Revised:2001-04-26 Published:2002-03-20 Online:2002-03-20

PDF (PC)

1436

被引次数

8

摘要： 采用沉降法测定蓖麻油在ＡｌＮ流延浆料中的分散效果．结果表明：分散剂添加量为粉体重量的１～１．５％时，对本文所述的ＡｌＮ粉料而言分散效果最好．应用傅立叶红外光谱分析法，研究蓖麻油在ＡｌＮ流延浆料中的分散机理．结果表明：蓖麻油分子上的羰基与ＡｌＮ中的氮原子形成ｎ－π共轭结构，能有效地吸附在ＡｌＮ陶瓷颗粒表面，使蓖麻油长链分子分散在ＡｌＮ颗粒周围，产生良好的空间位阻分散．获得了均匀的，流动性好的ＡｌＮ流延浆料．

关键词: 红外分析, 氮化铝, 分散剂, 流延

Abstract: Castor oil was used as the dispersant of AlN tape casting slurry, its efficiency was evaluated by the method of deposition. The result
indicates that when the amount of castor oil is around 1%-1.5% of the weight of AlN powders, the most homogeneous slurry can be
achieved. Fourier transform infrared (FTIR) was firstly introduced into the studying of interactions between inorganic AlN particles
and organic dispersants. The results show that carbonyl is the main functional group that affects the adsorption property. The
carbonyl and nitride atom forms a conjugate structure of n-π, which makes a stable adsorption.

Key words: infrared analysis, AlN, dispersant, tape casting

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