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Buchumschlag von Microencapsulation of hydrophilic solid powder as fire retardant agent with epoxy resin by droplet coalescence method
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Microencapsulation of hydrophilic solid powder as fire retardant agent with epoxy resin by droplet coalescence method

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Zeitschriftentitel: Journal of Applied Polymer Science
Personen und Körperschaften: Takahashi, Masanori, Taguchi, Yoshinari, Tanaka, Masato
In: Journal of Applied Polymer Science, 110, 2008, 3, S. 1671-1676
Medientyp: E-Article
Sprache: Englisch
veröffentlicht:
Wiley
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Zusammenfassung: <jats:title>Abstract</jats:title><jats:p>To give water resistance to Bistetrazol–diammonium (BHT–2NH<jats:sub>3</jats:sub>) as a fire retardant agent, microencapsulation with epoxy resin was tried by the droplet coalescence method. In this method, two kinds of epoxy resin droplets were prepared; one is the larger epoxy resin droplet containing BHT–2NH<jats:sub>3</jats:sub> as a core material and the other the smaller droplets containing Imidazole as a gelation agent. The larger epoxy resin droplets were made to coalesce with the many smaller droplets during the microencapsulation process to prepare microcapsules. In the experiment, the agitation velocities for preparation of the droplets and for coalescence were mainly changed. With increase in the impeller speed, the content of core material increased, became maximum because of increase in the coalescence frequency, and then decreased because of breakup of droplets. With increase in the impeller speed, the leakage ratio of core material decreased, became minimum, and then increased. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008.</jats:p>
Umfang: 1671-1676
ISSN: 0021-8995
1097-4628
DOI: 10.1002/app.28211