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High Performance Polysodium Acrylate Superabsorbents Utilizing Microfibrillated Cellulose to Augment Gel Properties
- Source :
- Soft Materials. 8:207-225
- Publication Year :
- 2010
- Publisher :
- Informa UK Limited, 2010.
-
Abstract
- Microfibrillated cellulose was utilized at low concentrations as a filler material, added prior tofree radical polymerization, in cross-linked superabsorbent polysodium acrylate hydrogels. The effect of microfibrillated cellulose concentration on equilibrium swelling, shear modulus after synthesis,and shear modulus at equilibrium swelling was studied at different degree of cross-linking. For the characterization of the microfibrillated cellulose optical microscopy, atomic force microscopy, and transmittance analysis were used. The shear modulus of the samples was determined using uniaxial compression analysis. The swelling of the gels was determined using classical gravimetrical measurements. It was found that microfibrillated cellulose was highly efficient in increasing the shear modulus of the gels. Furthermore, the microfibrillated cellulose was found to have the same effect on the swelling and shear modulus at equilibrium swelling as the same mass of the conventional covalent cross-linker N,N’-methylenebisacrylamide (MBA), while in fact improving the fracture resistance of the gels. In conclusion, microfibrillated cellulose shows great potential as an additive toenhance the performance of soft materials. Refereed/Peer-reviewed
- Subjects :
- Acrylate
Materials science
MFC
Radical polymerization
General Chemistry
Condensed Matter Physics
law.invention
Shear modulus
chemistry.chemical_compound
chemistry
Optical microscope
law
Self-healing hydrogels
medicine
General Materials Science
superabsorbents
Swelling
medicine.symptom
Cellulose
Composite material
Elastic modulus
hydrogels
Subjects
Details
- ISSN :
- 15394468 and 1539445X
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- Soft Materials
- Accession number :
- edsair.doi.dedup.....829c29ddc4b80eeae1d2be27cb3193f1