Effect of pH Change on the Shell Thickness of Calcium Carbonate Hollow Particles by CO<sub>2</sub> Gas Bubbling Method
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- Tomioka Tatsuya
- Ceramics Research Laboratory, Nagoya Institute of Technology
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- Takahashi Chisato
- Ceramics Research Laboratory, Nagoya Institute of Technology
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- Takai Chika
- Ceramics Research Laboratory, Nagoya Institute of Technology
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- Utsuno Mitsuo
- Ceramics Research Laboratory, Nagoya Institute of Technology
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- Fuji Masayoshi
- Ceramics Research Laboratory, Nagoya Institute of Technology
Bibliographic Information
- Other Title
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- 炭酸ガスバブリング法で合成される炭酸カルシウム中空粒子のシェル厚に与える pH 変化の影響
Abstract
Effect of pH change on the shell thickness of calcium carbonate hollow particles was investigated. Calcium carbonate hollow particles were synthesized at different pH change rates by Carbon dioxide bubbling into a solution. And influence of pH change rate on the shell thickness was estimated by observing SEM images of cross section of hollow particles. pH change curve could be divided into two stages, before and after the point where pH changes rapidly, and could express each stage with the approximated curve. Rate parameters of pH change rate were determined from these approximated curves, and the relation with shell thickness was investigated. As a result, it has become clear that thickness of hollow particles is expressible by the rate parameter of approximation curve corresponding to the first stage which is characterized as the process from start of bubbling to the point where shell is formed.
Journal
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- Journal of the Society of Powder Technology, Japan
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Journal of the Society of Powder Technology, Japan 49 (4), 260-266, 2012
The Society of Powder Technology, Japan
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Details 詳細情報について
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- CRID
- 1390001204511847552
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- NII Article ID
- 130004545838
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- ISSN
- 18837239
- 03866157
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed