Bi-functional silica nanoparticles for simultaneous enhancement of mechanical strength and swelling capacity of hydrogels
Majharul Islam Sujan, Stephen Don Sarkar, Salma Sultana, Labiba Bushra, Rizwan Tareq, Chanchal Kumar Roy, Md. Shafiul Azam
Abstract
'-methylene bisacrylamide (MBA). For instance, tensile strength and the toughness increased by more than 6 times and 10 times, respectively, upon replacing MBA with BF-Si in polyacrylamide hydrogel. Moreover, the hydrogels crosslinked with BF-Si exhibited a remarkably elevated level of swelling capacity in the aqueous medium. Our facile yet smart strategy of employing the 3D bi-functional crosslinker for combining high swelling degree and strong mechanical properties in the same hydrogels can be extended to the fabrication of many similar acrylate or vinyl polymer hydrogels.
Topics & Concepts
Self-healing hydrogelsSwellingAcrylatePolyacrylic acidMaterials scienceChemical engineeringPolyacrylamideUltimate tensile strengthPolymerSwelling capacityToughnessPolymer chemistryRadical polymerizationNanoparticlePolymerizationComposite materialCopolymerNanotechnologyEngineeringHydrogels: synthesis, properties, applicationsAdvanced Materials and MechanicsAdvanced Sensor and Energy Harvesting Materials