Journal of Surfactants and Detergents最新文献_第8页

Properties of liquid foams stabilized by sugar-based surfactants and prepared under different conditions 不同条件下糖基表面活性剂稳定泡沫液体的性质

IF 1.8 4区工程技术

Journal of Surfactants and Detergents Pub Date : 2024-10-02 DOI: 10.1002/jsde.12800

João Victor Cordeiro do Nascimento, Eduardo R. A. Lima, Natalie Preisig, Cosima Stubenrauch

{"title":"Properties of liquid foams stabilized by sugar-based surfactants and prepared under different conditions","authors":"João Victor Cordeiro do Nascimento, Eduardo R. A. Lima, Natalie Preisig, Cosima Stubenrauch","doi":"10.1002/jsde.12800","DOIUrl":"10.1002/jsde.12800","url":null,"abstract":"The study of foam stability is a subject of continuous research, due to the different fields of application foams are used in. In this study, foams stabilized with a family of nonionic sugar-based surfactants were investigated systematically. For this purpose, we changed the concentration (c > cmc), the gas flow rate, and the disk porosity. The foam properties were evaluated by measuring the foam volume, the liquid fraction, and the bubble size distribution as a function of time. We observed good foamability for all conditions tested with a tendency towards increasing stability with increasing chain length and increasing head group size. For foams stabilized by the short chain surfactants β-C8G1 and β-C8G2 we observed a significant time evolution due to coarsening and coalescence, while foams stabilized with the longer chain surfactants hardly changed during the observation time. From an industrial point of view, our study helps to understand properties of foams generated under different conditions. We conclude that for the special family investigated here a very good performance can be expected for a broad variety of conditions.","PeriodicalId":17083,"journal":{"name":"Journal of Surfactants and Detergents","volume":"28 2","pages":"321-331"},"PeriodicalIF":1.8,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jsde.12800","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143565181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of surfactants for the resolution of emulsions and suspensions in slop oil storage tanks, cleaning, and final disposal 表面活性剂在废油储罐中乳剂和悬浮液的溶解、清洗和最终处理中的应用

IF 1.8 4区工程技术

Journal of Surfactants and Detergents Pub Date : 2024-10-01 DOI: 10.1002/jsde.12799

José López, Shirley Marfisi Valladares, Mario Lobo, Alix Guerrero, Carlos Carvajal

{"title":"Application of surfactants for the resolution of emulsions and suspensions in slop oil storage tanks, cleaning, and final disposal","authors":"José López, Shirley Marfisi Valladares, Mario Lobo, Alix Guerrero, Carlos Carvajal","doi":"10.1002/jsde.12799","DOIUrl":"10.1002/jsde.12799","url":null,"abstract":"In order to provide environmental solutions for the treatment of oily residues (slop oil) from refineries, formulations with surfactants were proposed according to the type of dispersed system of the slop (crude oil emulsified with water and/or solid particles). Samples were collected in 12 tanks located at the Oxialquilados Venezolanos C.A., Barcelona Plant (Anzoátegui, Venezuela), performing physicochemical tests for the identification of the dispersed system (solubility, wettability, stability, water content) and microscopic observations (morphology and particle size). The results indicated heterogeneous slop samples with a water content of 2%–60% vol/vol consisting of single or multiple emulsions, with droplet sizes between approximately 10 and 30 micron; others formed by sludge or suspension (solids/oil/water). For the destabilization of these systems, aqueous and organic cleaning solutions were designed, determining the percentage of oil separated in the bottle tests at optimal and simulated field conditions. Field tests with volume scaling of the slop tank reported efficiencies of 63%, 85%, and 100% when treating the slop TK-17, TK-36, EE, respectively; for the mixture (Pulmon-2) an efficiency of 47%. By combining heat treatment and two demulsifiers was possible to treat the slop TK-17 (multiple emulsion). A considerable volume of water can be drained from the tanks for use in the plant. In conclusion, the surfactant formulas were effective in the recovery of a significant amount of crude oil, making it feasible to return it to the generating entity.","PeriodicalId":17083,"journal":{"name":"Journal of Surfactants and Detergents","volume":"28 2","pages":"305-319"},"PeriodicalIF":1.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental study on the effect of formulation and hydrodynamic variables on non-aqueous foams stability 配方及水动力变量对非水泡沫稳定性影响的实验研究

IF 1.8 4区工程技术

Journal of Surfactants and Detergents Pub Date : 2024-09-21 DOI: 10.1002/jsde.12798

Alexis Cova-Bonillo, Rayda Patino-Camino, José Danglad-Flores, Guillermo Linero, Shirley Marfisi Valladares

{"title":"Experimental study on the effect of formulation and hydrodynamic variables on non-aqueous foams stability","authors":"Alexis Cova-Bonillo, Rayda Patino-Camino, José Danglad-Flores, Guillermo Linero, Shirley Marfisi Valladares","doi":"10.1002/jsde.12798","DOIUrl":"10.1002/jsde.12798","url":null,"abstract":"This study investigated the factors affecting the foamability and stability of non-aqueous foams. The researchers systematically varied the formulation (surfactant and alcohol type and concentration) and flow parameters (viscosity and gas flow rate). A custom setup with an 80 cm temperature-controlled glass column was used for foam generation. Among the tested non-ionic surfactants type sorbitan esters, the Span 80 (liquid W/O emulsifier and O/W emulsion stabilizer) produced the most voluminous foams. Interestingly, increasing surfactant concentration improved foamability but decreased foam stability. Similar trends were observed with the oil fraction and temperature (which affects viscosity). Higher viscosity led to more stable but less foamy structures. The study also explored the effect of different alcohols (ethanol to n-decanol) at varying flow rates. While all alcohols generated some foam at lower flow rates (200 mL/min N2), the effect diminished at higher flow rates. Additionally, foam stability and volume decreased with longer alcohol chains. These findings provide valuable insights into the interplay between formulation, flow conditions, and the resulting stability of non-aqueous foams.","PeriodicalId":17083,"journal":{"name":"Journal of Surfactants and Detergents","volume":"28 2","pages":"293-304"},"PeriodicalIF":1.8,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143565418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization and kinetic study of N-methyldiethanolamine-based esterquats production 基于 N-甲基二乙醇胺的酯喹生产的优化和动力学研究

IF 1.8 4区工程技术

Journal of Surfactants and Detergents Pub Date : 2024-09-19 DOI: 10.1002/jsde.12797

Haliza Abdul Aziz, Rozita Yusoff, Ngoh Gek Cheng, Zainab Idris, Nur Aainaa Syahirah Ramli

{"title":"Optimization and kinetic study of N-methyldiethanolamine-based esterquats production","authors":"Haliza Abdul Aziz, Rozita Yusoff, Ngoh Gek Cheng, Zainab Idris, Nur Aainaa Syahirah Ramli","doi":"10.1002/jsde.12797","DOIUrl":"10.1002/jsde.12797","url":null,"abstract":"A sustainable alternative process for the production of bio-based esterquats via heterogeneous transesterification of palm methyl ester and N-methyldiethanolamine was developed. The transesterification process conditions over CaO/γ-Al2O3 catalyst were optimized using Response Surface Methodology (RSM). At 146°C, 83.2% di-ester yield was obtained after 6 h when 4.1 wt% of the synthesized catalyst was used with 1.8:1 methyl ester/N-methyldiethanolamine molar ratio. CaO/γ-Al2O3 was able to be reused for 3 cycles without a significant deactivation. A kinetic model was proposed based on irreversible second-order kinetics and it was the best-fitted experimental data with an overall reaction rate constants ranging between 0.0892 and 0.695 L/mol.min and an activation energy of 48 kJ/mol. The first experimental investigation on kinetic can be applied to provide insights on large scale reactor design for bio-based esterquats production. The synthesized esterquats was found to be readily biodegradable, as it reached the pass level of 60% of biodegradation within the period of incubation (28 days). It exhibits similar chemical and physical properties to the commercially available tallow-based esterquats, thus offering a potential substitute for the animal fat-based feedstock with the most abundantly available and renewable palm-based oleochemicals.","PeriodicalId":17083,"journal":{"name":"Journal of Surfactants and Detergents","volume":"28 2","pages":"277-291"},"PeriodicalIF":1.8,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143565384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cloning, purification, and functional characterization of recombinant pullulanase from Bacillus cereus ATCC 14579 for improved detergent performance 从蜡样芽孢杆菌（Bacillus cereusATCC 14579）中克隆、纯化和鉴定重组戊二酸酶的功能，以改善洗涤剂性能

IF 1.8 4区工程技术

Journal of Surfactants and Detergents Pub Date : 2024-08-29 DOI: 10.1002/jsde.12796

Asma Zafar, Ammara Masood, Ziaur Rahman, Attia Hamid, Mah Hoor Javed, Amna Zulfiqar, Samreen Fatima, Madood Makhdoom, Muhammad Nauman Aftab

{"title":"Cloning, purification, and functional characterization of recombinant pullulanase from Bacillus cereus ATCC 14579 for improved detergent performance","authors":"Asma Zafar, Ammara Masood, Ziaur Rahman, Attia Hamid, Mah Hoor Javed, Amna Zulfiqar, Samreen Fatima, Madood Makhdoom, Muhammad Nauman Aftab","doi":"10.1002/jsde.12796","DOIUrl":"10.1002/jsde.12796","url":null,"abstract":"The present study outlines the approach that was employed for cloning, expression, and characterization of the recombinant pullulanase enzyme from Bacillus cereus ATCC 14579 into Escherichia coli BL21(DE3) using pET-25b (+) expression vector. The recombinant pullulanase enzyme was purified using ammonium sulfate precipitation and immobilized metal ion affinity chromatography (IMAC). The molecular mass of the purified pullulanase enzyme was measured using sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) as 95 kDa. The purified recombinant pullulanase enzyme demonstrated significant thermal stability, maintaining its structural integrity and functionality at temperatures as high as 90°C over a period of 4 h. The inclusion of divalent metal ions, specifically Ca2+ and Mg2+, had a positive effect on the activity of the pullulanase enzyme. Conversely, the presence of Co2+ and EDTA (Ethylene Diamine Tetra Acetic acid) resulted in suppression of the enzyme activity. The purified pullulanase enzyme demonstrated remarkable resistance when exposed to organic solvents. The enzyme activity was notably decreased in the presence of SDS (Sodium Dodecyl Sulfate) while β-mercaptoethanol and tween-60 did not substantially affect the enzyme activity and stability which suggest its potential applicability in the detergent sector. This discovery indicates a potential approach to improve the effectiveness of currently available detergents in the marketplace.","PeriodicalId":17083,"journal":{"name":"Journal of Surfactants and Detergents","volume":"28 2","pages":"263-276"},"PeriodicalIF":1.8,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Special Issue: Glycolipid biosurfactants: Synthesis, properties, and applications 特刊：糖脂生物表面活性剂：合成、特性和应用

IF 1.8 4区工程技术

Journal of Surfactants and Detergents Pub Date : 2024-08-27 DOI: 10.1002/jsde.12795

Douglas G. Hayes, Richard D. Ashby, Lu-Kwang Ju, George A. Smith

引用次数: 0

Synthesis and properties of sodium stearyl polyoxypropylene acetates 硬脂醇聚氧丙烯醋酸钠的合成与特性

IF 1.8 4区工程技术

Journal of Surfactants and Detergents Pub Date : 2024-08-20 DOI: 10.1002/jsde.12791

Xueyi Hu, Ying Zhu, Liwen Shi, Kaiqiang Zhou, Yun Fang, Fuyi Li

{"title":"Synthesis and properties of sodium stearyl polyoxypropylene acetates","authors":"Xueyi Hu, Ying Zhu, Liwen Shi, Kaiqiang Zhou, Yun Fang, Fuyi Li","doi":"10.1002/jsde.12791","DOIUrl":"10.1002/jsde.12791","url":null,"abstract":"Sodium stearyl polyoxypropylene acetates (SC18PpC, p = 3, 6, 9) were synthesized through a two-step process involving propoxylation of stearyl alcohol and subsequent carboxymethylation. Stearyl polyoxypropylene acetic acids (C18PpC, p = 3, 6, 9), the acidified products of SC18PpC, were characterized by FT-IR, 1H-NMR, and ESI-MS. The properties of SC18PpC were extensively investigated and compared with sodium dodecanoate (SD) and sodium stearate (SS). The solubility of SC18PpC in cold water was enhanced. Kraft temperature (Tk) of SC18P3C is 40°C which is significantly lower than SS, and Tk of SC18PpC (p = 6, 9) are even less than 0°C. SC18PpC exhibits overall greater hard water resistance compared to SD and SS with the hardness of 0 to 450 mg/L. The hard water resistance of SC18PpC escalates proportionally with the length of the spacer, and the aqueous solution of SC18P9C retains its clarity even when exposed to the hard water of 450 mg/L, the maximum hardness level of Chinese tap water. SC18PpC demonstrates efficiency and effectiveness in reducing surface tension, as well as better foaming, emulsification and wetting power compared to SD and SS. These improved properties make SC18PpC (p = 3, 6) more effective in detergency on three typical soiled fabrics compared to that of sodium soap. Specifically, the detergency to sebum-stained fabric of SC18P3C exhibits 1.5 times and 1.3 times improvement compared to SD and SS, respectively. Therefore, it is recommended to incorporate SC18PpC (p = 3, 6) in the detergent formulations for washing intimate apparel in tap water.","PeriodicalId":17083,"journal":{"name":"Journal of Surfactants and Detergents","volume":"28 2","pages":"251-262"},"PeriodicalIF":1.8,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the Pickering emulsions stabilized by SiO2 nanoparticles for enhanced oil recovery 利用二氧化硅纳米颗粒稳定的皮克林乳液提高石油采收率的研究

IF 1.8 4区工程技术

Journal of Surfactants and Detergents Pub Date : 2024-08-13 DOI: 10.1002/jsde.12794

Liu Yang, Jijiang Ge, Hao Wu, Hongbin Guo, Jingling Shan, Guicai Zhang

{"title":"Study on the Pickering emulsions stabilized by SiO2 nanoparticles for enhanced oil recovery","authors":"Liu Yang, Jijiang Ge, Hao Wu, Hongbin Guo, Jingling Shan, Guicai Zhang","doi":"10.1002/jsde.12794","DOIUrl":"10.1002/jsde.12794","url":null,"abstract":"In high-temperature and high-salt environments, emulsions stabilized by surfactants are susceptible to instability phenomena, such as droplet coalescence, thereby limiting their utility in tertiary oil recovery. The Pickering emulsions, which are stabilized by solid particles, have been proved to exhibit good stability. This study demonstrated that the nonionic surfactant C16E20 can adsorb onto SiO2 nanoparticles with an efficiency exceeding 99%, rendering C16E20 suitable for modulating the wettability of SiO2 nanoparticles. By adjusting the proper surfactant-to-nanoparticle ratio, such as 0.1%:1.0%, a hydrophilic–lipophilic equilibrium is obtained, which is beneficial for the preparation of Pickering emulsions. Laser confocal and cryo-scanning electron microscopy results indicated that SiO2 nanoparticles in Pickering emulsions were dispersed at the oil–water interface, forming a network structure between the emulsion droplets. Further experiments illustrated that the Pickering emulsions showed excellent stability for at least 180 days at 80°C. Conventional emulsions behave as Newtonian fluids at lower oil-phase ratios, while Pickering emulsions exhibit non-Newtonian fluid properties, with their viscosity capable of increasing by over 100 times. Additionally, Pickering emulsions were found to exhibit thixotropy, attributed to the reversible formation and destruction of droplet bridging structures. Overall, Pickering emulsions are regarded as potential agents for Enhanced Oil Recovery in oilfield development.","PeriodicalId":17083,"journal":{"name":"Journal of Surfactants and Detergents","volume":"28 2","pages":"225-238"},"PeriodicalIF":1.8,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A cold-adapted and robust alkaline lipase from Marinobacter nanhaiticus boosts laundry detergent performance 来自南海马林杆菌的一种适应低温且强健的碱性脂肪酶可提高洗衣粉性能

IF 1.8 4区工程技术

Journal of Surfactants and Detergents Pub Date : 2024-08-13 DOI: 10.1002/jsde.12793

Qinzhou Cai, Huifang Zhang, Bingshan Zhao, Lei Ren, Yonghua Wang, Fanghua Wang

引用次数: 0

Surface activity and wetting behavior of branched short-chain anionic perfluorinated/cationic hydrocarbon surfactant blends in dilute solutions 支链短链阴离子全氟/阳离子碳氢化合物表面活性剂混合物在稀溶液中的表面活性和润湿行为

IF 1.8 4区工程技术

Journal of Surfactants and Detergents Pub Date : 2024-08-10 DOI: 10.1002/jsde.12792

Mengyuan Peng, Min Sha, Ding Zhang, Biao Jiang

{"title":"Surface activity and wetting behavior of branched short-chain anionic perfluorinated/cationic hydrocarbon surfactant blends in dilute solutions","authors":"Mengyuan Peng, Min Sha, Ding Zhang, Biao Jiang","doi":"10.1002/jsde.12792","DOIUrl":"10.1002/jsde.12792","url":null,"abstract":"Conventional perfluorooctane sulfonyl fluorosurfactants (PFOS) have caused great harm to human health and the environment, but the irreplaceable properties of fluorosurfactants offer great values. To this end, we have synthesized a highly surface active, environmentally friendly sulfonate surfactant (PBSA) with a perfluorinated branched short chain and systematically investigated its thermal stability, surface properties, wetting performance, and so forth. The minimal surface tension (γCMC) and critical micelle concentration (CMC) of the aqueous solution of PBSA were 22.70 mN/m and 0.067 mmol/L, respectively. In addition, the binary system of PBSA and cetyltrimethylammonium bromide (CTAB) exhibited excellent synergistic effects: γCMC and CMC values were reduced to 18.94 mN/m and 0.008 mmol/L. Moreover, the PBSA/CTAB mixed solution exhibited superb wetting ability: it could achieve complete wetting of PTFE plates at low concentrations (1.82 × 10−3 mol/L), with a minimum wetting concentration of only 2.84 × 10−5 mol/L.","PeriodicalId":17083,"journal":{"name":"Journal of Surfactants and Detergents","volume":"28 2","pages":"215-223"},"PeriodicalIF":1.8,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141920690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0