2 cationic polyacrylamide hydrogel in Lamy
2 cationic polyacrylamide hydrogel in Lamy
2 cationic polyacrylamide hydrogel in Lamy
2 cationic polyacrylamide hydrogel in Lamy
2 cationic polyacrylamide hydrogel in Lamy
strengthening alginate/polyacrylamide hydrogels using various

Strengthening Alginate/Polyacrylamide Hydrogels Using Various

We successfully synthesized a family of alginate/polyacrylamide hydrogels using various multivalent cations. These hydrogels exhibit exceptional mechanical properties. In particular, we discovered that the hydrogels cross-linked by trivalent cations are much stronger than those cross-linked by divalent cations. We demonstrate stretchability and toughness of the hydrogels by inflating a

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hydrogel: preparation, characterization, and applications: a review

Hydrogel: Preparation, characterization, and applications: A review

Hydrogel products constitute a group of polymeric materials, the hydrophilic structure of which renders them capable of holding large amounts of water in their three-dimensional networks. Extensive employment of these products in a number of industrial and environmental areas of application is considered to be of prime importance.

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a universal method to easily design tough and stretchable hydrogels

A universal method to easily design tough and stretchable hydrogels

The hydrogels were prepared using AAm concentrations of e 1.0, f 2.5, and g 5.0 mol/L. h Photographs of a swollen PAAm hydrogel during compression and shear tests.

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fundamental concepts of hydrogels: synthesis, properties, and their

Fundamental Concepts of Hydrogels: Synthesis, Properties, and Their

Abstract In the present review, we focused on the fundamental concepts of hydrogels¡ªclassification, the polymers involved, synthesis methods, types of hydrogels, properties, and applications of the hydrogel.

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polyacrylamide degradation and its implications in environmental

Polyacrylamide degradation and its implications in environmental

The hydrolyzed form of polyacrylamide (HPAM), a co-polymer of acrylamide and acrylic acid, is the most widely used anionic PAM in oil and gas development as well as in soil conditioning. 1, 9,...

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mechanism of polyacrylamide hydrogel instability on high-temperature

Mechanism of Polyacrylamide Hydrogel Instability on High-Temperature

The most commonly used polymers are polyacrylamide (PAM), partially hydrolyzed polyAM (HPAM), and AM copolymers such as N-vinyl pyrrolidone, 2-acrylamido-2-methyl-propanesulfonate, and N-vinyl acetamide. 9?12 Cross-linking agents used in polymer gels are mainly organic cross-linkers and metallic cross-linkers such as Cr 3+, Al 3+, and Zr 4+. 13?15 Besides, a novel nanocomposite hydrogel

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physical and chemical characterisation of acrylamide-based

Physical and Chemical Characterisation of Acrylamide-Based

The DSC profiles of the hydrogels show that water has a higher evaporation temperature in the polyacrylamide hydrogel (84 ¡ãC).The largest depression of the temperature was observed on the Aam/NaCMC/MgO hydrogel (?T = 94 ¡ãC), which confirmed the higher hydrophilicity of Aam/NaCMC/MgO as compared to pure Aam hydrogel and Aam/NaCMC hydrogel.

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mechanical and rheological behavior of hybrid cross©linked

Mechanical and Rheological Behavior of Hybrid Cross©Linked

It is found that the chemical cross-linking can inhibit the hysteresis of the hybrid hydrogel, exhibiting good elasticity in the tensile loading¨Cunloading test and dynamic rheological measurements show that the hybrid Hydrogels possess fewer defects of network and exhibit excellent self-recovery behavior. In this work, a hybrid cross-linked polyacrylamide (PAM)/cationic micelle hydrogel is

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effect of template on structure and properties of cationic

Effect of Template on Structure and Properties of Cationic

The DSC profiles of the hydrogels show that water has a higher evaporation temperature in the polyacrylamide hydrogel (84¡ãC).The largest depression of the temperature was observed on the Aam

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research on the crosslinking mechanism of polyacrylamide/resol using

Research on the crosslinking mechanism of polyacrylamide/resol using

Resol crosslinked polyacrylamide (PAM) hydrogel can be used as the chemical flooding agent in enhanced oil recovery because of its excellent temperature- and salt-resistant properties. It is known

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