Effect of processing variables on mechanical properties of montmorillonite clay/unsaturated polyester nanocomposite using Taguchi based grey relational analysis
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Nagarajan Rajini
,
Jebas Thangaih Winowlin Jappes
Abstract
The present investigation addresses the influence of process variables on the mechanical properties of montmorillonite (MMT) nanoclay with unsaturated polyester, using the mechanical shear mixing process. The rotational speed, mixing time, rotor blade design and clay content were chosen as process variables. The influence of these process variables on mechanical properties were studied with the help of grey relational analysis. Organically modified MMT nanoclay was used as the reinforcing filler, in order to increase the swelling of the clay with the polyester resin. Nanocomposites were fabricated based on the experimental design using the L9 orthogonal array. Among the parameters studied, blade design was identified as the parameter with the most influence, due to the presence of a varying shear force, which peeled off the clay platelets from the stacked arrangement of clay tactoids. Grey relational analysis was used to obtain the optimum process parameters for multiple quality characteristics such as tensile, flexural and impact strength. It was observed that the Shore D hardness values for all nine experiments possess higher values than virgin polyester. Morphological studies have been carried out for the specimen with optimum process parameters using X-ray diffraction (XRD) and transmission electron microscopy (TEM). Tensile, flexural and impact fractured specimens were studied using scanning electron microscopy (SEM) for optimum conditions.
©2012 by Walter de Gruyter Berlin Boston
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Artikel in diesem Heft
- Masthead
- Masthead
- Original Articles
- Sensitivity analysis of free-volume theory parameters in multicomponent polymer-solvent-solvent systems
- Effect of intercalant types on the properties of melt blended metallocene polyethylene/metallocene polyethylene-g-silane/clay nanocomposites
- Compatibilization and toughening of immiscible ternary blends of polyamide 1010, polypropylene, and ABS resin
- Clay modification with silane compounds and characterization of the silicone rubber/clay composites
- Effects of surface treatments of AA 2024-T3 aluminum sheet on bonding to epoxy-based film adhesive
- Thermooxidative degradation and its kinetics of natural rubber coagulated by microwave radiation
- Modeling of tensile modulus of polyolefin-layered silicate nanocomposites: modified micro-mechanical and statistical methods
- Comparative study and characterization of starches isolated from unconventional tuber sources
- Unsaturated polyester/E-glass fiber composites made by vacuum assisted compression resin transfer molding
- Influence of stacking sequence on mechanical properties of basalt-jute fiber-reinforced polymer hybrid composites
- Effect of processing variables on mechanical properties of montmorillonite clay/unsaturated polyester nanocomposite using Taguchi based grey relational analysis
- Study on DTBP initiated MAH onto polybutene-1 with melt-grafting
- Investigation of rapid manufacturing technology with ABS material for wind tunnel models fabrication
- Potential solvent for reconditioning polyolefin waste materials
