Effect of potassium ferrate treatment on adhesive gelatinous biopolymer structure and erosion resistance of sewer sediments: Promotion or inhibition?

Zhang, Zigeng; Lu, Jinsuo; Zhang, Zhiqiang; Yang, Jing; Xin, Kuan; Zhao, Zicong; An, Lei; Kong, Deping

doi:10.1016/j.cej.2021.134025

Cited by 22 publications

(2 citation statements)

References 88 publications

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“…Dilution Performance of Shear Thixotropic Polymer Gel 2.1.1. Anti-Dilution Performance of Salt Water "Dilution" refers to the process in which the concentration or structure of the gel decreases due to dilution when it comes into contact with or is mixed with other fluids [40]. In the process of injecting the gel into the loss layer, it was very easily diluted by various fluids and the gelation ability of the gel was affected by the fluid, so the expected lost circulation control effect could not be achieved.…”

Section: Resultsmentioning

confidence: 99%

Experimental Study on Physicochemical Properties of a Shear Thixotropic Polymer Gel for Lost Circulation Control

Yang

Bai

Sun

et al. 2022

Gels

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Polymer gel lost circulation control technology is a common and effective technique to control fractured lost circulation. The performance of a lost circulation control agent is the key to the success of lost circulation control techniques. In this study, rheological tests were used to study the physical and chemical properties of a shear thixotropic polymer gel system, such as anti-dilution, high temperature resistance and high salt resistance. The results showed that the shear thixotropic polymer gel system had the ability of anti-dilution, and the gel could be formed under a mixture of 3 times volume of heavy salt water and 3/7 volume white oil, and could keep the structure and morphology stable. Secondly, the gel formation time of shear thixotropic polymer gel system could be controlled and had good injection performance under the condition of 140 °C and different initiator concentrations. Meanwhile, the shear thixotropic polymer gel system had the ability of high temperature and high salt resistance, and the gel formation effect was good in salt water. When the scanning frequency was 4 Hz and the temperature was 140 °C, the storage modulus (G′) of the gel was 4700 Pa. The gel was dominated by elasticity and had excellent mechanical properties. By scanning electron microscope observation, it was found that the shear thixotropic polymer gel system had a stable three-dimensional reticular space skeleton under the condition of high salt, indicating that it had excellent ability to tolerate high salt. Therefore, the shear thixotropic polymer gel had high temperature and high salt resistance, dilution resistance and good shear responsiveness. It is believed that the results presented in this work are of importance for extending real-life applications of shear thixotropic polymer gel systems.

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Section: Resultsmentioning

confidence: 99%

Experimental Study on Physicochemical Properties of a Shear Thixotropic Polymer Gel for Lost Circulation Control

Yang

Bai

Sun

et al. 2022

Gels

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“…These concerns inspired the search for materials capable of fixing these limitations while retaining the needed qualities for diverse applications. Biocomposites and biopolymers are two materials which have gained recent traction because of their easily adjustable properties. − Biocomposites from cheap and renewable resources offer significant sustainability and have found use in building materials, the aerospace industry, circuit boards, automotive applications, and the energy sector. − …”

Section: Introductionmentioning

confidence: 99%

Calixarene-Metal Complexes in Lactide Polymerization: The Story so Far

et al. 2023

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Polylactide synthetic procedures have lately gained attention, possibly due to their biocompatibility and the environmental problems associated with fossil-fuel-based polymers. Polylactides can be obtained from natural sources such as cassava, corn, and sugar beet, and polylactides can be manufactured in a laboratory using a variety of processes that begin with lactic acid or lactide. One of the most effective synthetic pathways is through a Lewis acid catalyzed ring-opening polymerization of lactides to obtain a well-defined polymer. In this regard, calixarenes, because of their easy functionalization and tunable properties, have been widely considered to be a suitable 3D molecular scaffold for new metal complexes that can be used for lactide polymerization. This review summarizes the progress made in applying some metalcalixarene complexes in the ring-opening polymerization of lactide.

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Magnetic wood sponge: efficient oil/water separation, dye degradation, and heavy metal removal

Vojdani Saghir,

Peighambari-kalat,

Goharshadi

2024

Appl. Phys. A

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Effect of potassium ferrate treatment on adhesive gelatinous biopolymer structure and erosion resistance of sewer sediments: Promotion or inhibition?

Cited by 22 publications

References 88 publications

Experimental Study on Physicochemical Properties of a Shear Thixotropic Polymer Gel for Lost Circulation Control

Experimental Study on Physicochemical Properties of a Shear Thixotropic Polymer Gel for Lost Circulation Control

Calixarene-Metal Complexes in Lactide Polymerization: The Story so Far

Magnetic wood sponge: efficient oil/water separation, dye degradation, and heavy metal removal

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