Harmless hydrogels based on PVA/Na+‐MMT nanocomposites for biomedical applications: Fabrication and characterization
作者： Ali Karimi , Wan Mohd Ashri Wan Daud
DOI: 10.1002/PC.23676
关键词:
摘要: A series of nanocomposite hydrogels were prepared by a freeze-thaw process, using polyvinyl alcohol (PVA) as polymer matrix and 0–10 wt% hydrophilic natural Na-montmorillonite (Na+-MMT), free from any modification, composite aggregates. The effect nanoclay content the sonication process on microstructure morphology well its properties (physical, mechanical, thermal) investigated. investigated Fourier transform infrared spectroscopy, field emission scanning electron microscopy, transmission atomic force X-ray diffraction technique. thermal stability mechanical examined thermogravimetric analysis, differential calorimetry, dynamic analysis; moreover hardness water vapor rate measurements. It was concluded that microstructure, morphology, physical (thermal) have been modified followed addition results showed Na+-MMT may act co-crosslinker. Based obtained, hydrogel PVA/Na+-MMT synthesized appeared to be good candidate for biomedical applications. POLYM. COMPOS., 2015. © 2015 Society Plastics Engineers
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