Electron beam modified nylon 6-clay nanocomposites: morphology and water absorption behavior
-
Subhendu Ray Chowdhury
,
Sanju Francis
Abstract
A series of nylon 6-clay nanocomposites were prepared by melt mixing, followed by electron beam (EB) crosslinking at various doses. Effects of crosslinking on clay dispersion, gel content, crystallinity and water absorption properties (hygrothermal) were studied. No change of the dispersion pattern of clay in nanocomposites was observed after crosslinking [from X-ray diffraction (XRD) and transmission electron microscopy (TEM)]. Gel content, i.e., degree of crosslinking is seen to keep on increasing with irradiation dose, although clays hinder crosslinking of polymers to some extent. Crystallinity of polymers is reduced after incorporation of clay as well as crosslinks. However, water absorption rate and maximum water content of nanocomposites are found to increase and saturation time to decrease with clay content. However, these changes become opposite after crosslinking of polymers. The water absorption for all samples is noticed to increase with temperature. Thus, EB crosslinking, without affecting the nanocomposite morphology, i.e., properties derived from nano interface generation, decreases the water absorption properties of nanocomposites.
Acknowledgments
The authors acknowledge Dr P.U. Sastry, SSPD, BARC for help with the XRD study. The authors are pleased to acknowledge Universal Cables Ltd., Umbargram, Gujrat for their kind help in making samples.
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Articles in the same Issue
- Frontmatter
- Original articles
- Kinetic degradation and storage stability of β-carotene encapsulated by spray drying using almond gum and gum arabic as wall materials
- Photo-polymerization of methacrylate based polymer electrolyte for dye-sensitized solar cell
- Synthesis and characterization of novel hydroxyl-terminated hyperbranched polyurethanes
- Electron beam modified nylon 6-clay nanocomposites: morphology and water absorption behavior
- The effect of ultraviolet irradiation and temperature on the resilience of high density polyethylene
- Polyaminoamide dendrimers surface-modified with anionic terminal groups for use as calcium carbonate scale inhibitors
- Technical feasibility of a new approach to electromagnetic interference (EMI) shielding of injection molded parts using in-mold coated (IMC) nanopaper
- Study on crystallization performance of polyethylene terephthalate/polybutylene terephthalate alloys
- Numerical study of polymer melt flow in a three-dimensional sudden expansion: viscous dissipation effects
- Enhancement of mechanical properties of polypropylene by blending with styrene-(ethylene-butylene)-styrene tri-block copolymer
- Development and fabrication of cement reinforced polypropylene composite material spur gear
