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Journal of Chemical and Petroleum Engineering، جلد ۵۵، شماره ۱، صفحات ۱۳۹-۱۴۹
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Effects of Hydrophobic Silica on the Performance of Silicone-Based Antifoams |
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| چکیده انگلیسی مقاله |
The efficiency of an antifoam consists of polydimethylsiloxane oil, hydrophobe silica particles, and either Sodium Dodecyl Sulfate (SDS) as an anionic surfactant, or Octyl phenyl deca ethylene oxide (Triton X-100) as nonionic surfactant for use in aqueous system is investigated. The performance of different combinations of oil, silica particles, and surfactant in control of foam height was determined using Bickerman Shaking test. The effect of surfactant in reducing the surface tension was determined using Wilhelmy test. The sizes of dispersed oil droplets and silica particles were determined using both optical and electronic microscopy. It was found that increasing the silica content of the antifoam mixture and using sharp-edged particles increase the performance of antifoam and decrease the foam disappearance time. This Observation was the same for both cases of using anionic and nonionic surfactants. It was also found that, as the inert gas purging rate increases, the time of deactivation decreases to less than a minute; a favorable performance for good quality antifoam. |
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| کلیدواژه‌های انگلیسی مقاله |
Antifoam, Foam Height, Hydrophobic Silica, Polydimethylsiloxane, Surfactant |
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| نویسندگان مقاله |
Majid Ghiass |
Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran
Atieh Askarizadeh |
Department of Chemistry, Islamic Azad University, Karaj Branch, Karaj, Iran
Hossien Bouhendi |
Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran
Gholamreza Bagheri Marandi |
Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran
Ghasem Naderi |
Department of Chemistry, Islamic Azad University, Karaj Branch, Karaj, Iran
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| نشانی اینترنتی |
https://jchpe.ut.ac.ir/article_80268_b3953fedb208f7258d88ec13d0c10729.pdf |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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