Journal ArticleDOI
Practical Improvement of SAP Hydrogel Properties via Facile Tunable Cross-linking of the Particles Surface
Reads0
Chats0
TLDR
To improve gel toughness, surface cross-linking of partially neutralized acrylic acid based superabsorbent polymers was performed by diethylene glycol diglycidyl ether.Abstract:
To improve gel toughness, surface cross-linking of partiallyneutralized acrylic acid based superabsorbent polymers (superabsorbent polymers, prepared by solution polymerization) was performed by diethylene glycol diglycidyl ether. Considering effective factors (treatment solution, surface cross-linker content, post-treatment temperature, and duration), a two-step surface modification procedure was performed on dried superabsorbent polymers particles. Attenuated total reflection–Fourier transform infrared spectroscopy has proved chemical cross-linking reaction. Mechanical properties have also been investigated. Besides, the modified rubber elasticity theory and Flory–Rehner equations have been used to investigate how they work in core–shell-like structure. The optimum condition provides at least a 100% raise in gel strength and appropriate absorbency.read more
Citations
More filters
Journal ArticleDOI
Synthesis of bio‐based internal and external cross‐linkers based on tannic acid for preparation of antibacterial superabsorbents
Journal ArticleDOI
Glycerol‐lactic acid star‐shaped oligomers as efficient biobased surface modifiers for improving superabsorbent polymer hydrogels
Mahsa Ghasri,Arash Jahandideh,Kourosh Kabiri,H. Bouhendi,Mohammad Jalal Zohuriaan-Mehr,Nasrin Moini +5 more
Journal ArticleDOI
Antibacterial superabsorbing hydrogels with high saline-swelling properties without gel blockage: Toward ideal superabsorbents for hygienic applications:
TL;DR: In this paper, superabsorbent polymer hydrogels with antibacterial activity were prepared by an ion exchange reaction as a feasible approach to induce high saline absorption without gel blockage.
Journal ArticleDOI
Fine tuning of SAP properties via epoxy‐silane surface modification
TL;DR: Using 3-[(2,3-epoxypropoxy)-propyl]-trimethoxysilane as a surface modifier, superabsorbent polymers with improved gel strength in their swollen state and saline absorbency under load are synthesized as discussed by the authors.
Journal ArticleDOI
Superabsorbent polymers achieved by surface cross linking of poly(sodium acrylate) using microwave method
Mahsa Ghasri,H. Bouhendi,Kourosh Kabiri,Mohammad Jalal Zohuriaan-Mehr,Zeinab Karami,Hamid Omidian +5 more
TL;DR: In this paper, the microwave method was used for surface treatment process of superabsorbent polymers based on poly(sodium acrylate), and the results showed that surface treatment time can be reduced from 1 to 3h in the conventional heating to a few minutes by microwave method.
References
More filters
Book
Mechanical Properties of Polymers and Composites
TL;DR: In this article, the authors discuss various mechanical properties of fiber-filled composites, such as elastic moduli, creep and stress relaxation, and other mechanical properties such as stress-strain behavior and strength.
Book
Modern superabsorbent polymer technology
TL;DR: In this article, Buchholz et al. described the properties of superabsorbent polyacrylates and applied them to a variety of applications in the field of medical applications.
Journal ArticleDOI
Multi-scale multi-mechanism design of tough hydrogels: building dissipation into stretchy networks
TL;DR: It is shown that tough hydrogels generally possess mechanisms to dissipate substantial mechanical energy but still maintain high elasticity under deformation, and a particularly promising strategy for the design is to implement multiple mechanisms across multiple length scales into nano-, micro-, meso-, and macro-structures of hydrogel.
Journal ArticleDOI
Solute Diffusion within Hydrogels. Mechanisms and Models
TL;DR: In this paper, various mathematical models derived to explain and predict solute diffusion in hydrogels are reviewed and tested against literature data, and it was determined that a scaling hydrodynamic model provided the best explanation for solutes diffusion.
Book
Introduction to spectroscopy : a guide for students of organic chemistry
TL;DR: In this article, nuclear magnetic resonance spectroscopy and spin-spin coupling with other nuclei are discussed. But spin spin coupling is not one of the main topics in one-dimensional nmr.