Secondary nucliation in semibatch emulsion polymerization: effect of secondary feed component on particle size and their distribution
Publish place: 07th International Congress on Chemical Engineering
Publish Year: 1390
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICHEC07_522
تاریخ نمایه سازی: 25 فروردین 1394
Abstract:
In this study, polymeric latexes with bimodal distribution in particle size were prepared by emulsion copolymerization. The effect of monomer and surfactant amounts in the secondary feed on primary and secondary particle sizes were investigated. The results showed that by control of monomer and surfactant amounts in the second step of polymerization and after formation of primary particles, it is possible to prepare bimodal latex particles with desired primary andsecondary particle sizes and their ratio as well. Primary particles were designed with core-shell structure for application in water base traffic coating and secondary particles had low Tg composition and molecular weight for decreasing minimum film formation temperature (MFFT) to formation of continuous film.
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Authors
Khadijeh Didehban
Polymer Science Department, Iran Polymer and Petrochemical Institute, P.O. Box: ۱۴۹۶۵/۱۱۵, Tehran, Iran
Iraj Hasanzadeh
Polymer Science Department, Iran Polymer and Petrochemical Institute, P.O. Box: ۱۴۹۶۵/۱۱۵, Tehran, Iran
Ali Reza Mahdavian
Polymer Science Department, Iran Polymer and Petrochemical Institute, P.O. Box: ۱۴۹۶۵/۱۱۵, Tehran, Iran
Amjad sazgar
Polymer Science Department, Iran Polymer and Petrochemical Institute, P.O. Box: ۱۴۹۶۵/۱۱۵, Tehran, Iran
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