Colloid and Polymer Science最新文献

{"title":"Synthesis and characterization of novel magnetic heat-resistant poly(amide-ether) nanocomposites based on dibenzo xanthene","authors":"Akbar Mobinikhaledi,&nbsp;Hassan Moghanian,&nbsp;Atusa Karimi,&nbsp;Shirin Faridi","doi":"10.1007/s00396-024-05231-4","DOIUrl":"10.1007/s00396-024-05231-4","url":null,"abstract":"<div><p>Poly(amide-ether)/NiFe₂O₄ nanocomposites with different amounts of NiFe₂O₄ were synthesized by the solution intercalation method. Poly(amide-ether) (12) derived from dibenzo xanthene was prepared by condensation reaction of <i>N</i>-(3-(14H-dibenzo[a,j]xanthen-14-yl)phenyl)-3,5-diaminobenzamide (<b>7</b>) and 4,4′-(ethane-1,2-diylbis(oxy))dibenzoic acid (10) monomers. The poly amide-ether (PAE) was characterized by Fourier-transform infrared spectroscopy (FT-IR), proton nuclear magnetic resonance (¹H-NMR), ultraviolet–visible spectroscopy (UV–vis), and thermogravimetric analysis (TGA). The intrinsic viscosity of PAE in DMF solution, with a concentration of 0.01 g/dL at a temperature of 25 °C, was found to be 0.31 dL/g⁻¹. NiFe₂O₄ nanoparticles were prepared via the co-precipitation method and used for the preparation of new poly(amide-ether)/NiFe₂O₄ nanocomposites (PAEN 3% and PAEN 5%). The morphology, crystalline phase, thermal stability, and magnetization properties of the prepared nanocomposites were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), UV–vis, TGA, DSC, and vibrating sample magnetometer (VSM). The SEM measurements show that the diameter of the NiFe₂O₄ nanoparticles is about 40 nm. The XRD results indicated the formation of NiFe₂O₄ nanoparticles with cubic phase in the PAE matrix. In examining the optical properties, it has been observed that by increasing the NiFe₂O₄ nanoparticle concentration, PAEN 3% and PAEN 5% nanocomposites show a decrease in wavelength and have a blue shift of 2 and 4 nm, respectively, compared to pure PAE. The magnetic properties of the sample were showed that the sample exhibited typical ferromagnetic behavior at room temperature. Also, results of TGA measurement have shown that the incorporation of NiFe₂O₄ in a higher concentration in the PAE matrix revealed improved thermal stability when compared to the neat PAE. The results indicate that the prepared nanocomposites exhibited magnetic properties and improvement in the thermal stability compared to neat PAE.</p></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"302 5","pages":"803 - 817"},"PeriodicalIF":2.2,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139767105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A curcumin sustained-release hydrogel prepared from Pickering emulsions stabilized by modified amorphous calcium phosphate nanoparticles","authors":"Jindian Cai,&nbsp;Yong Guo,&nbsp;Yaodong Liang,&nbsp;Yongjun He","doi":"10.1007/s00396-024-05236-z","DOIUrl":"10.1007/s00396-024-05236-z","url":null,"abstract":"<div><p>This study presents a method to prepare hydrogel from Pickering emulsions stabilized with amorphous calcium phosphate (ACP). Pickering emulsion was prepared by utilizing stearic acid (Sa)-modified ACP as the emulsifier, blended oil as the dispersed phase, and aqueous sodium alginate (SA) as the continuous phase. ACP releases calcium ions to crosslink with sodium alginate when the pH decreases, forming a hydrogel. Structural characterization and surface wettability of the modified ACP were assessed through FT-IR, XRD, and contact angle measurements. Droplet sizes in the emulsion were analyzed using optical microscopy, and the release of curcumin from the hydrogel was monitored using ultraviolet spectroscopy. These results demonstrate Sa was grafted onto the surface of ACP. Stabilization of the Pickering emulsion was achieved using 4 wt% Sa-ACP. Moreover, the droplet size exhibited a reduction with heightened particle concentration, oil-water ratio, and pH. The release of curcumin was optimized at 5 wt% SA and 0.75 w/v% Sa-ACP with 53.5% release. The Ca-alginate matrices prevented the release of the curcumin at pH 1.2 and the curcumin was vastly released at pH 7.4, exhibiting pH-responsive release characteristics. These results confirmed the Sa-ACP-stabilized Pickering emulsion hydrogel could be used as an effective delivery system.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"302 5","pages":"781 - 790"},"PeriodicalIF":2.2,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139767168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Researching the mineralized deposition of BPEI-MTM and its application in enhancing wellbore stability","authors":"Liu Zhendong,&nbsp;Xu Hai,&nbsp;Li Gongrang,&nbsp;Lv Jianren","doi":"10.1007/s00396-024-05232-3","DOIUrl":"10.1007/s00396-024-05232-3","url":null,"abstract":"<div><p>The shale reservoir consists mainly of mud shale, characterized by its unique physical and chemical properties, extensive bedding, and micro-cracks. As a result, it is susceptible to hydration and dispersion, leading to the instability of the wellbore during drilling. To address this issue, chemical or physical methods are necessary to enhance the wellbore integrity and ensure stability during the drilling process. This paper focuses on simulating the biomimetic mineralization process to study the composite membrane structure formed by the deposition of montmorillonite and polyelectrolyte. The study investigates the reinforcement effect of the composite membrane on the wellbore wall. By examining the morphology and structure of montmorillonite and BPEI deposition films, the influence of deposition times and polyelectrolyte variations on the deposition film is analyzed. Additionally, the mechanical properties of the montmorillonite and BPEI deposition film are evaluated. The investigation also employs simulated drilling fluid circulation deposition to assess the reinforcement effect of the deposition film on the well wall. Experimental results indicate that the deposition film formed by montmorillonite and BPEI demonstrates a certain level of effectiveness in improving wellbore stability. These findings provide a solid basis for further research on process technology and offer new insights for ensuring the safety of shale oil reservoir drilling.</p></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"302 5","pages":"771 - 779"},"PeriodicalIF":2.2,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139767165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Entropy generation for stagnation point dissipative hybrid nanofluid flow on a Riga plate with the influence of nonlinear convection using neural network approach","authors":"Showkat Ahmad Lone,&nbsp;Arshad Khan,&nbsp;Taza Gul,&nbsp;Safyan Mukhtar,&nbsp;Wajdi Alghamdi,&nbsp;Ishtiaq Ali","doi":"10.1007/s00396-024-05227-0","DOIUrl":"10.1007/s00396-024-05227-0","url":null,"abstract":"<div><p>Entropy generation analysis combined with hybrid nanofluid flow principles contribute to the development of more efficient drug delivery systems for cancer treatment. By using nanofluids, it is possible to improve the transport and targeted release of therapeutic agents to specific sites in the body, allowing for better control and efficiency in treating cancerous cells. Keeping these important applications in view, in the current analysis, the production of irreversibility and stagnant point hybrid nanofluid flow has been considered on a Riga plate. The impacts of nonlinear convection and solar radiations have also been used in this study. Glycol (C₃H₈O₂) is taken as base fluid, while nanoparticles of copper (Cu) and aluminum oxide (Al₂O₃) have been mixed in it to obtain a hybrid nanofluid. The leading equations for the study have converted to dimensionless form by employing a set of suitable variables and then have been solved by using an artificial neural network (ANN). In order to evaluate the effectiveness of the least mean square neural network algorithm (LMS-NNA), statistical neural network techniques are employed, encompassing error analysis and curve-fitting graphs. It has been revealed in this work that an upsurge in EMHD Riga plate factor and the Grashof number escalates the velocity distribution for both nanoparticles as well as hybrid nanoparticles and is opposed by augmentation in width factor for electrode/magnet. The increase in the nanoparticle volume fraction from 0.01 to 0.05 escalates the heat transfer rate up to 7.6% in the case of nanofluid with Cu-nanoparticles while this increase is 9.3% using hybrid nanofluid Cu + Al₂O₃. These results show that HNF are more efficient in improving the HT rate.</p></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"302 5","pages":"745 - 770"},"PeriodicalIF":2.2,"publicationDate":"2024-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139767169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of low-cost mussel-inspired poly(catechol/polyamine) modification of waste brick powder followed by grafting of epoxy elastomers on natural rubber composites","authors":"Meng Zhao,&nbsp;Hao Duan,&nbsp;Su Zhang,&nbsp;Linfeng Han,&nbsp;Keyu Peng,&nbsp;Yuan Jing,&nbsp;Guangyi Lin","doi":"10.1007/s00396-024-05225-2","DOIUrl":"10.1007/s00396-024-05225-2","url":null,"abstract":"<div><p>The aim of this study is to explore a method for modifying waste brick powder (WBP) in order to reapply it to rubber products for effective resource recycling. Firstly, we use the auto polymerization of catechol/polyamine (CPA) on the surface of WBP to form a poly catechol/polyamine (PCPA) coating as an intermediate reaction platform. And then the macromolecular modifier, epoxy-functionalized elastomer (ethylene vinyl acetate-glycidyl methacrylate terpolymer) (EVMG), is further grafted onto the PCPA coating to prepare the WBP@EVMG hybrid materials. During the preparation of the WBP@EVMG hybrid materials, a ring-opening reaction between the amine group of PCPA and the epoxy group of EVMG occurs. The NR/WBP@EVMG composites are prepared by mechanical blending. The interfacial interactions between WBP@EVMG and NR are analyzed and verified in detail by dynamic mechanical analysis (DMA) and rubber process analyzer (RPA). It is shown that the modified NR/WBP composites show increased vulcanization rate and better mechanical properties, and the tensile strength, abrasion resistance, cracking strength, and wet slip resistance of NR/WBP@EVMG-15 are increased by 29%, 6%, 16%, and 11%, respectively, compared with that of NR/WBP composites, which provides a unique idea for the reuse of waste brick powder in rubber.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"302 5","pages":"735 - 744"},"PeriodicalIF":2.2,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139767173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of the assembly behaviour and physicochemical parameters for the tetradecyltrimethylammonium bromide and promazine hydrochloride mixture: Impact of monohydroxy organic compounds","authors":"Ashraful Alam,&nbsp;K. M. Anis-Ul-Haque,&nbsp;Javed Masood Khan,&nbsp;Dileep Kumar,&nbsp;Mohammad Irfan,&nbsp;Shahed Rana,&nbsp;Md. Anamul Hoque,&nbsp;Shariff E. Kabir","doi":"10.1007/s00396-024-05223-4","DOIUrl":"10.1007/s00396-024-05223-4","url":null,"abstract":"<div><p>This study investigates the assembly behaviour and physicochemical parameters of a drug-surfactant mixture comprising tetradecyltrimethylammonium bromide (TTAB) and promazine hydrochloride (PMZ) in water and aq. solutions of monohydroxy organic compounds (ethanol (EtOH), 1-propanol (1-PrOH), and 2-butanol (2-BuOH)) using conductometric method. The interaction between TTAB and PMZ has been characterized with the assessment of physicochemical quantities (critical micelle concentration (CMC), counter ion binding (<i>β</i>) and thermodynamic parameters (standard Gibbs energy (<span>({Delta G}_{{varvec{m}}}^{{varvec{o}}})</span>), enthalpy (<span>({Delta H}_{{varvec{m}}}^{{varvec{o}}})</span>), and entropy (<span>({Delta S}_{{varvec{m}}}^{{varvec{o}}})</span>)). The introduction of PMZ with TTAB surfactant resulted in a reduction of the CMC value and an augmentation of the magnitude of <i>β</i>. The inclusion of alcohols causes the delaying creation of micelles above 5% w/w of all alcohols employed. The enhancement of CMC values was acquired with the increase of temperature for TTAB and PMZ mixture. The micellization of the TTAB + PMZ system was obtained as spontaneous with <span>({-Delta G}_{{varvec{m}}}^{{varvec{o}}})</span> values. The observed values of <span>({Delta H}_{{varvec{m}}}^{0})</span> and <span>({Delta S}_{{varvec{m}}}^{0})</span> indicate that, the entropy plays the main roles in the assembly of TTAB + PMZ in aq. media, while the association is governed by the joint contribution from enthalpy and entropy in aq. alcohol solutions. The hydrophobic interaction is the key forces of interaction between TTAB and PMZ in water medium, whereas hydrophobic and ion-induced dipole are the probable interaction in aq. alcohol media. The thermodynamic of transfer and entropy enthalpy compensation parameters are computed and described with proper logics.</p></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"302 5","pages":"721 - 734"},"PeriodicalIF":2.2,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139664006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improvement of membrane stabilizer on the rehydrated reconstruction of spray-dried mannitol-based liposome powder","authors":"Chunxue Liang,&nbsp;Jincheng Du,&nbsp;Ting Hou,&nbsp;Liyuan Sui,&nbsp;Jinlian Li,&nbsp;Yanli Zhao,&nbsp;Dongmei Wu","doi":"10.1007/s00396-024-05224-3","DOIUrl":"10.1007/s00396-024-05224-3","url":null,"abstract":"<div><p>Spray drying is regarded as one of the most economical methods utilized in the production of liposome powder in industry. However, the poor reconstruction of the powder following rehydration imposes constraints on its potential utilization. In this study, three membrane stabilizers, Poloxamer 188 (P188), trehalose (Tre), and Tween 80 (T80) were selected due to their distinct localization behaviors, and their impact on the reconstruction of rehydrated liposomes was discussed. The mannitol-based spray-dried liposome powder with excellent reconstruction was successfully developed. After rehydrating the powder, the particle size (D_h) and polydispersion index (PDI) of mannitol-encapsulated liposome powder (Bla) significantly increase. Although adding leucine improved the dispersion of the powder (Bla/Leu), the increase in D_h and PDI after rehydration was more significant, changed from 172.79 nm and 0.075 for Bla to 459.97 nm and 0.291 for Bla/Leu, the micropolarity and hydrophobicity of membrane also increased, indicating a poorer reconstruction. The addition of extra membrane stabilizers enhanced the stability of the liposomes after rehydration. Specifically, the addition of T80 reduced the changes in D_h and PDI caused by leucine to 118.39 nm and 0.015, while the changes of ANS fluorescence intensity and I₁/I₃ to 178.66 a.u and 0.02. Raman spectroscopy revealed that the addition of membrane stabilizer greatly reduced the disorder of the acyl chain, especially the T80. It could be the embedding mode of T80 on liposomes and its excellent solubilization played the best role. It also showed the best stability in extreme environments such as acidity and ionic strength.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"302 5","pages":"711 - 720"},"PeriodicalIF":2.2,"publicationDate":"2024-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139497405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microsized uniform magnetic polymer microspheres with carboxyl groups","authors":"Daria O. Shestakova,&nbsp;Natalya N. Sankova,&nbsp;Ekaterina V. Parkhomchuk","doi":"10.1007/s00396-023-05219-6","DOIUrl":"10.1007/s00396-023-05219-6","url":null,"abstract":"<div><p>A two-step synthetic method has been described to produce uniform magnetic polymer microspheres with carboxyl groups. The approach used proposes modification of polymer microspheres with magnetic nanoparticles, therefore allowing to expand range of sizes, shapes and surface group concentration of the resulting magnetic polymer microspheres. Synthesized magnetic polymer particles of 5.2 µm in size and carboxyl group concentration of 350 µmol/g react to magnetic fields, allowing them to be easily pulled from the solution after only 4 min of exposure to a permanent magnet. The desired size and morphology of the polymer particles were achieved by studying the influence of the swelling agent concentration, seed particle amount and size, inhibitor concentration, and initiator type.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"302 5","pages":"695 - 709"},"PeriodicalIF":2.2,"publicationDate":"2024-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139497408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on the properties of in situ emulsified active associative polymer with low molecular weight based on low permeability oil reservoirs","authors":"Cheng Jin,&nbsp;Cheng-jian Nie,&nbsp;Yong-jun Guo,&nbsp;Yan Liang,&nbsp;Jun Hu,&nbsp;Jie Li,&nbsp;Qi-yong Xiong","doi":"10.1007/s00396-023-05220-z","DOIUrl":"10.1007/s00396-023-05220-z","url":null,"abstract":"<div><p>The development of oil and gas resources in low-permeability reservoirs is being paid more and more attention. Moreover, oil and gas resources in low-permeability reservoirs are affluent, and the water cut of the medium permeability layer is so high that the injection capacity has decreased significantly. Therefore, it is of great importance to address the issues of injectability and enhance oil recovery in low-permeability reservoirs. Given the existing conditions of low permeability and high water cut in Daqing Oilfield, the synthesis of an in situ emulsified associative polymer (ISEPAM) is the focus of the research. The polymer was prepared by micellar polymerization, ensuring a molecular weight of 5 × 10⁶ Dalton. A series of experiments were conducted to investigate its dissolution filtration property, viscosifying, emulsification, anti-adsorption, conductivity, and oil displacement capacity. The experimental results show that ISEPAM has more significant properties than the polymeric surfactant (HB) used in Daqing Oilfield. The ISEPAM solution has significant filterability (filter factor is 1.1), viscosifying (38.66 mPa·s), emulsification (the water evolution rate of ISEPAM was only 4.4% for 60 min at 90% water cut), and good anti-adsorption property (after five adsorptions, still has a viscosity retention rate of 65%) in a specific concentration (1000 mg/L) and the field water in Daqing Oilfield (salinity is 4996.3 mg/L). The reason for this is due to the presence of dynamic reversible networks in the ISEPAM solution, and there are no cationic functional groups on the polymer chain. The conductivity of ISEPAM was tested using a homogeneous square core with 48.1 mD permeability, and the results show that the viscosity retention rate of the effluent can reach 90% and excellent injection property can be achieved. In the oil displacement test, ISEPAM presents excellent sweep efficiency and enhanced oil recovery by about 25% under 50 mD permeability. Under low permeability conditions, the ISEPAM exhibits better injectability and excellent oil displacement capacity. The related findings can provide an important idea and reference for the design and development of EOR polymers in the reservoirs with low permeability or high water cut.</p></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"302 5","pages":"679 - 694"},"PeriodicalIF":2.2,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139482402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on temperature-resistance and salt-tolerance aluminum gel and its rheological analysis","authors":"Mingjia Liu,&nbsp;Jijiang Ge,&nbsp;Qianhui Wu,&nbsp;Aiqing Ma,&nbsp;Jiasu Li,&nbsp;Guicai Zhang,&nbsp;Haiming Fan,&nbsp;Ping Jiang,&nbsp;Haihua Pei","doi":"10.1007/s00396-023-05221-y","DOIUrl":"10.1007/s00396-023-05221-y","url":null,"abstract":"<div><p>In this paper, the aluminum gel with polymeric aluminum chloride (PAC) as the gelling agent and carbamide as a catalyst were investigated. The gelling regularities were studied, and its gelling performance was evaluated under high temperature and high salinity. The results showed that the basicity, mass fraction of PAC and carbamide, temperature, and salinity significantly influenced the formation of the gel. The gel exhibited exceptional thermal stability and gel strength under high temperature and salinity conditions. The results indicated that when the aluminum gel was prepared with 8 wt% PAC and 1 wt% carbamide and dissolved in brine with a salinity of 110,000 mg/L, the dehydration rate was less than 1 wt% after being aged for 180 days at 130 °C. Furthermore, the gel strength, elasticity, and yield stress increased with the rise in salinity. The experimental results showed that the aluminum gel is highly significant in plugging reservoirs with high temperature, high salinity, and low permeability.</p></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"302 5","pages":"665 - 677"},"PeriodicalIF":2.2,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139423234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}