In this study, the montmorillonite (MMT) clay was modified with NH4Cl, and then structures were exfoliated or intercalated in a polylactic acid (PLA) matrix by torque rheometer ratio of 0.5, 3.0, 5.0 8.0 wt%. X-ray diffraction (XRD) revealed that organic modified-MMT(OMMT) distributed successfully PLA matrix. After thermal pressing, stability mixed composites measured TGA. The also blended OMMT...

Nanocomposites (NC) were formed using cationic poly(L-lysine) (PLL), a semicrystalline polypeptide, that was reinforced by sodium montmorillonite (MMT) clay via solution intercalation technique. By varying solution conditions such as pH, temperature, and polypeptide concentration in the presence of clay platelets, the secondary structure of PLL was controllably altered into a-helical, b-sheet, ...

This paper reports the dispersion of nanoclay in vinylester using co-rotating twin screw extrusion and ultrasonication for preparing nanoclay/vinylester gel coat. Two sets MMT/vinylester specimens, namely Type 1 2 were prepared comparative studies. While specimens only, both twin-screw extrusion. showed lower levels intercalation higher exfoliation. By coat so by two different routes, MMT/vinyl...

Abstract In this work, the effect of two different types bioactive coatings on properties 3D printed poly(lactic acid)/montmorillonite (PLA/MMT) nanocomposite scaffolds was examined. To improve their suitability for bone tissue engineering applications, PLA were coated with (i) ordered mesoporous Strontium bioglass (SrBG) and (ii) SrBG nanohydroxyapatite (nHA) using a simple dip coating procedu...

We report a methodology developed to detect and track stable fluorescent-labeled nanoclay, in polymer-clay nanocomposite films, and in a contact solvent after migration testing. Fluorescein-5-maleimide (fluorescein) or tetramethylrhodamine-5-maleimide (rhodamine) was covalently bonded to organically modified montmorillonite (o-MMT). Fluorescein- and rhodamine-labeled nanoclay showed good therma...

Our continuing research on the preparation, characterization, materials properties, and biodegradability of polylactide (PLA)/organically modified layered silicate (OMLS) nanocomposites has yielded results on PLA/montmorillonite nanocomposites. Montmorillonite (mmt) modified with dimethyldioctadecylammonium cation was used as an OMLS for nanocomposite preparation. The internal structure of nano...

‎(St-co-BA) polymer through montmorillonite (MMT) nanocomposite emulsion is prepared by ‎in situ intercalative emulsion polymerization of styrene (St), butyl acrylate (BA) in the ‎presence of organic modified montmorillonite (OMMT) with different OMMT contents (0, ‎‎0.5, 1.0, 1.5, and 2.0 wt%). The synthetic compounds are characterized by FTIR, XRD. The ‎nanocomposite emulsions are characterize...