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gshg112709

金虫 (小有名气)

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注册: 2008-09-05
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专业: 有机化工

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摘要：论述了化学沉淀法合成纳米羟基磷灰石的过程，以Ca(OH)2和Na3PO4为原料，在超声波辅助下，控制Ca／P原子比为1.67、适当的Na3P04滴加速率和搅拌强度等件，用SEM、XRD和HIR对目标产物的结构和粒度进行了分析。结果表明，滴定完后溶液在常温下反应1h。产物用无水乙醇洗涤可获得纯度、结晶度、颗粒度和分散性均较好的羟基磷灰石粉体。
关键词：纳米羟基磷灰石；超声化学；烧结

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1楼 2010-06-28 18:09:04

已阅回复此楼关注TA 给TA发消息送TA红花 TA的回帖

May2010

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专业: 化学环境污染与健康

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wypward(金币+1):谢谢参与 2010-06-28 22:36:05
gshg112709(金币+2, 翻译EPI+1): 2010-06-29 14:25:30

Abstract: Nano-hydroxyapatite was synthesized by chemical precipitation process under the conditions below: Ca (OH) 2 and Na3PO4 were used as raw materials, an ultrasonic oscillatator was used to oscillating the system, the atomic ratio of Ca and P was controlled as 1.67, Na3P04 was dropped at appropriate rate and stirring intensity. The structure and size of target product was analyzed by SEM photos, XRD and HIR. The results show that the product, which was obtained by standing the reaction solution at room temperature for one hour after titration, was washed with anhydrous ethanol to get hydroxyapatite powder with high purity and crystallinity, and the particle size and dispersion was good.
Keywords: nano-hydroxyapatite; ultrasonic chemistry; sintering
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