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Different types of ...
Different types of microfibrillated cellulose as filler materials in polysodium acrylate superabsorbents
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- Larsson, Mikael, 1982 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Zhou, Qi (author)
- KTH,Wallenberg Wood Science Center,Glykovetenskap,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
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- Larsson, Anette, 1966 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2011-04-20
- 2011
- English.
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In: Chinese Journal of Polymer Science (English Edition). - : Springer Science and Business Media LLC. - 1439-6203 .- 0256-7679. ; 29:4, s. 407-413
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Abstract
Subject headings
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- Three types of microfibrillated cellulose (MFC) with differences in structure and surface charge were used at low concentration as filler materials in polysodium acrylate superabsorbents (SAPs). The swelling of the composite hydrogels was determined in 0.9% NaCl solution as well as in deionized water. The shear modulus of the samples was determined through uniaxial compression analysis after synthesis and after swelling in 0.9% NaCl solution. Furthermore, the ability to retain filler effects after washing was investigated. The results showed that all of the investigated MFCs had a strong reinforcing effect on the shear modulus after synthesis. The filler effect on swelling and on the associated shear modulus of swollen samples showed a more complicated dependence on structure and surface charge. Finally, it was found that the filler effects were reasonably retained after washing and subsequent drying. The results confirm that MFC holds great potential as a filler material in superabsorbent applications. Furthermore, the results provide some insight on how the structural properties and surface charge of MFC will affect gel properties depending on swelling conditions. This information should be useful in evaluating the use of different types of MFC in future applications.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
Keyword
- gels
- Polyacrylic acid
- networks
- hydrogels
- nanocomposites
- Microfibrillated cellulose
- elastic-modulus
- nanofibers
- SAP
- Hydrogels
- MFC
- Polymer chemistry
Publication and Content Type
- art (subject category)
- ref (subject category)
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