NDLI: Supercritical carbon dioxide-assisted process in synthesis of polymer/clay melt

Content Provider	Springer Nature Link
Author	Hashim, Norazlina Yusoh, Kamal
Copyright Year	2015
Abstract	Nanocomposites are currently being used in a number of fields, and new applications are continuously being developed including mechanical and biomaterial devices, as well as various in solar and fuel cells applications. Generally, the synthesis of polymer nanocomposites are done using solution chemistry, and this may raise serious concerns regarding air and water pollutions. Immediately, the ‘green’ method using supercritical carbon dioxide (scCO$_{2}$) has grabbed the attention of researchers who are responsible to synthesize polymer composites by non-hazardous routes. Extrusion processes would benefit from the use of scCO$_{2}$ since the rationale of the extrusion process is to formulate, provide texture and shape molten polymers by forcing them through a die. ScCO$_{2}$ has been used in several studies as a medium of clay dispersion in polymer matrix by providing a solvent-free fabrication route for nanocomposites. Furthermore, it has more favorable interactions with polymers compared to other inert gases and has the ability to be dissolve in large quantities. It acts as a plasticizer, which modifies viscosity and interfacial properties of the polymer drastically. In this paper, experimental and theoretical studies of solubility and viscosity of several polymer melts in clay are discussed in detail. The assistance of scCO$_{2}$ in clay dispersion and as a foaming agent has been reviewed extensively.
Starting Page	403
Ending Page	417
Page Count	15
File Format	PDF
ISSN	15985032
Journal	Macromolecular Research
Volume Number	23
Issue Number	5
e-ISSN	20927673
Language	English
Publisher	The Polymer Society of Korea
Publisher Date	2015-04-22
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	supercritical carbon dioxide melt processing clay nanocomposites nanofiller dispersion foaming Polymer Sciences Soft and Granular Matter, Complex Fluids and Microfluidics Physical Chemistry Characterization and Evaluation of Materials Nanochemistry Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Materials Chemistry Chemical Engineering Polymers and Plastics

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