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Preparation of meso–macroporous TiO2 ceramic based on membrane jet-flow emulsification—Influences of triblock copolymers on the processes

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Abstract.
Meso–macroporous TiO2 ceramics were obtained based on a two-stage ceramic membrane jet-flow
emulsification and the influences of the triblock copolymers on the process are discussed in this study.
The two α-Al2O3 ceramic membranes with average pore sizes of 0.5 and 1.6 μm were used to control the
structure of nonaqueous emulsions. Polyethylene oxide (PEO)–polypropylene oxide (PPO)–polyethylene
oxide (PEO) with relative molecular masses of 5800 and 2900 were used as emulsifiers. Monodispersed
emulsions with the same average droplet size of 2.6 μm were prepared using the two emulsifiers.
However, ordered macroporous structures could only be obtained when the PEO–PPO–PEO of 5800 was
used as emulsifier because the lower interfacial tension leans to produce the more stable nonaqueous
emulsion. Moreover, the mesoporous structures of 5.4 nm and 7.1 nm could be obtained by the selfassembling
block copolymers.

Keywords:
Meso–macroporous
Ceramic
Emulsion
Membrane emulsification
Jet flow

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Informasi Detail

Judul Seri

Journal of Colloid and Interface Science

No. Panggil

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Penerbit

London : Elsevier Inc.., 2009

Deskripsi Fisik

Journal of Colloid and Interface Science 333 (2009) 324–328

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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