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Xiaoyun Song, Heping Zheng, Lei Xu, Tingting Xu and Qiuyu Li
An investigation was carried out to study the influence of two types of anti-washout admixtures (AWAs) on the performance of underwater concrete, specifically, workability and washout resistance. The tested AWAs were hydroxypropyl methylcellulose (HPMC) ...
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Daniel Brüggemann, Tahereh Shojamejer, Michelle Tupinamba Lima, Dzenna Zukova, Rahel Marschall and Reinhard Schomäcker
For a group of nonionic surfactants with polar head groups synthesized by the copolymerization of ethylene oxide and carbon dioxide, the potential for their application in the foam flotation of microplastic particles was investigated. Their performance w...
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Yujia Chen, Wei Tan, Li Li and Hongbing Ji
It is a challenge to research and develop silicon surfactants with good acid and alkali stability. In the present paper, methylpropenyl polyether modified nonionic silicone surfactant (MPNTS), an alkali-resistant and hydrolysis-resistant silicone surfact...
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Haimin Wu, Maoxue Zhang, Honghui Zheng and Feng Yi
Geotextile tubes have offered a cost-effective and convenient solution for the treatment of dredged slurry in recent years. Despite their benefits, the dewatering process of this method remains cumbersome and time-consuming. The incorporation of floccula...
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Su-Byung Jeon, Byung-Ki Son, Ji-Won Choi and Injoon Son
In this study, the effect of the hydrophilic?lipophilic balance (HLB) number and cloud point (CP) of a secondary-alcohol ethoxylated nonionic surfactant on degreasing efficiency was investigated. A degreasing process was conducted for steel samples with ...
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Alessandra Pulliero, Aldo Profumo, Camillo Rosano, Alberto Izzotti and Sergio Claudio Saccà
The aim of this research was to evaluate the effects of different lens types on the availability and efficacy of anti-inflammatory and antibiotic drugs. Three lens types were examined: (1) nonionic hydrogel lenses; (2) ionic hydrogel lenses; and (3) sili...
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Eka Nur'azmi Yunira, Ani Suryani, Dadang Dadang, Silvester Tursiloadi
Pág. 85 - 91
Size reduction of pesticide formulation can improve its performance to pest and disease control in plant. Size reduction methods were high speed agitation, ultrasonic emulsification, high pressure homogenization, microfluidic and membrane emulsific...
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Olga Kochkodan, Victor Maksin, Nadiya Antraptseva, Tetyana Semenenko
Pág. 437 - 445
By using surface tension and conductivity measurements, the colloid-chemical properties of the mixtures of cationic hexadecylpyridinium bromide with nonionic Triton X-100 surfactants were investigated both in the bulk solution and at air/solution interfa...
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Andrea Elekes, László Bartha, Árpád Vágó
Pág. 508 - 512
This paper considers anionic and nonionic surfactants, as candidates for crude oil production by enhancement applications. In this study some colloidal properties of surfactants were tested by conventional and new test methods. The oil in water type emul...
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Dong Chen, Feng Li, Yingxin Gao and Min Yang
Purification of produced water (PW) from polymer/surfactant flooding is a challenge for the petroleum industry due to the high emulsion stability. Demulsification using chemical demulsifiers has been expected to be an effective way to treat PW. In this p...
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