The Experts below are selected from a list of 75 Experts worldwide ranked by ideXlab platform
Isaac Pardo Martinez - One of the best experts on this subject based on the ideXlab platform.
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Slip Additive migration surface morphology and performance on injection moulded high density polyethylene closures
Journal of Colloid and Interface Science, 2017Co-Authors: Nabeen Dulal, Thomas R Gengenbach, Harsharn Gill, David Chalmers, Robert A. Shanks, Benu Adhikari, Isaac Pardo MartinezAbstract:Abstract Hypothesis The amount and distribution of Slip agents, erucamide, and behenamide, on the surface of high-density polyethene, is determined by integral characteristics of Slip agent structure and polymer morphology. A suite of surface analysis techniques was applied to correlate physicochemical properties with Slip-Additive migration behaviour and their surface morphology. The migration, surface morphology and physicochemical properties of the Slip Additives, crystallinity and orientation of polyethene spherulites and interaction between Slip Additives and high-density polyethene influence the surface characteristics. Experimental The high-density polyethene closures were produced with erucamide and behenamide separately and stored until they produced required torque. Surface composition was determined employing spectroscopy and gas chromatography. The distribution of Additives was observed under optical, scanning electron and atomic force microscopes. The surface energy, crystallinity and application torque were measured using contact angle, differential scanning calorimeter and a torque force tester respectively. Results and discussion Each Slip Additive produced a characteristic amide peak at 1645 cm−1 in infrared spectroscopy and peaks of oxygen and nitrogen in X-ray photoelectron spectroscopy, suggesting their presence on the surface. The erucamide produced placoid scale-like structures and behenamide formed denticulate structures. The surface erucamide and behenamide responsible for reducing the torque was found to be 15.7 µg/cm2 and 1.7 µg/cm2.
Nabeen Dulal - One of the best experts on this subject based on the ideXlab platform.
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migration and performance of erucamide Slip Additive in high density polyethylene bottle caps
Journal of Applied Polymer Science, 2018Co-Authors: Nabeen Dulal, David Chalmers, Robert A. Shanks, Benu Adhikari, Harsharn GillAbstract:Diffusion of erucamide and their morphology on surface characteristics of high-density polyethylene (HDPE) screw caps depend on storage conditions. Erucamide performance relies on its amount, distribution, and consistency on the surface of HDPE. Specific application and removal torques can be achieved by controlling the amount of erucamide on the surface. The surface amount and the torque increased to an optimum level at 38 and 50 °C within 120 hours of incubation, while they remained unchanged for lower temperatures. Erucamide diffused to the surface and formed flat plate-like crystal structures at similar time and temperature. These flat-plates can slide over each other and provide the Slip required to decrease the torque. An increase in contact angle demonstrated that hydrophobic hydrocarbon-chains of amide Slip Additives were oriented toward the air interface. An optimum surface amount of erucamide for proper sealing torque could be produced at a different combination of storage time and temperature.
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Slip Additive migration surface morphology and performance on injection moulded high density polyethylene closures
Journal of Colloid and Interface Science, 2017Co-Authors: Nabeen Dulal, Thomas R Gengenbach, Harsharn Gill, David Chalmers, Robert A. Shanks, Benu Adhikari, Isaac Pardo MartinezAbstract:Abstract Hypothesis The amount and distribution of Slip agents, erucamide, and behenamide, on the surface of high-density polyethene, is determined by integral characteristics of Slip agent structure and polymer morphology. A suite of surface analysis techniques was applied to correlate physicochemical properties with Slip-Additive migration behaviour and their surface morphology. The migration, surface morphology and physicochemical properties of the Slip Additives, crystallinity and orientation of polyethene spherulites and interaction between Slip Additives and high-density polyethene influence the surface characteristics. Experimental The high-density polyethene closures were produced with erucamide and behenamide separately and stored until they produced required torque. Surface composition was determined employing spectroscopy and gas chromatography. The distribution of Additives was observed under optical, scanning electron and atomic force microscopes. The surface energy, crystallinity and application torque were measured using contact angle, differential scanning calorimeter and a torque force tester respectively. Results and discussion Each Slip Additive produced a characteristic amide peak at 1645 cm−1 in infrared spectroscopy and peaks of oxygen and nitrogen in X-ray photoelectron spectroscopy, suggesting their presence on the surface. The erucamide produced placoid scale-like structures and behenamide formed denticulate structures. The surface erucamide and behenamide responsible for reducing the torque was found to be 15.7 µg/cm2 and 1.7 µg/cm2.
Harsharn Gill - One of the best experts on this subject based on the ideXlab platform.
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migration and performance of erucamide Slip Additive in high density polyethylene bottle caps
Journal of Applied Polymer Science, 2018Co-Authors: Nabeen Dulal, David Chalmers, Robert A. Shanks, Benu Adhikari, Harsharn GillAbstract:Diffusion of erucamide and their morphology on surface characteristics of high-density polyethylene (HDPE) screw caps depend on storage conditions. Erucamide performance relies on its amount, distribution, and consistency on the surface of HDPE. Specific application and removal torques can be achieved by controlling the amount of erucamide on the surface. The surface amount and the torque increased to an optimum level at 38 and 50 °C within 120 hours of incubation, while they remained unchanged for lower temperatures. Erucamide diffused to the surface and formed flat plate-like crystal structures at similar time and temperature. These flat-plates can slide over each other and provide the Slip required to decrease the torque. An increase in contact angle demonstrated that hydrophobic hydrocarbon-chains of amide Slip Additives were oriented toward the air interface. An optimum surface amount of erucamide for proper sealing torque could be produced at a different combination of storage time and temperature.
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Slip Additive migration surface morphology and performance on injection moulded high density polyethylene closures
Journal of Colloid and Interface Science, 2017Co-Authors: Nabeen Dulal, Thomas R Gengenbach, Harsharn Gill, David Chalmers, Robert A. Shanks, Benu Adhikari, Isaac Pardo MartinezAbstract:Abstract Hypothesis The amount and distribution of Slip agents, erucamide, and behenamide, on the surface of high-density polyethene, is determined by integral characteristics of Slip agent structure and polymer morphology. A suite of surface analysis techniques was applied to correlate physicochemical properties with Slip-Additive migration behaviour and their surface morphology. The migration, surface morphology and physicochemical properties of the Slip Additives, crystallinity and orientation of polyethene spherulites and interaction between Slip Additives and high-density polyethene influence the surface characteristics. Experimental The high-density polyethene closures were produced with erucamide and behenamide separately and stored until they produced required torque. Surface composition was determined employing spectroscopy and gas chromatography. The distribution of Additives was observed under optical, scanning electron and atomic force microscopes. The surface energy, crystallinity and application torque were measured using contact angle, differential scanning calorimeter and a torque force tester respectively. Results and discussion Each Slip Additive produced a characteristic amide peak at 1645 cm−1 in infrared spectroscopy and peaks of oxygen and nitrogen in X-ray photoelectron spectroscopy, suggesting their presence on the surface. The erucamide produced placoid scale-like structures and behenamide formed denticulate structures. The surface erucamide and behenamide responsible for reducing the torque was found to be 15.7 µg/cm2 and 1.7 µg/cm2.
David Chalmers - One of the best experts on this subject based on the ideXlab platform.
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migration and performance of erucamide Slip Additive in high density polyethylene bottle caps
Journal of Applied Polymer Science, 2018Co-Authors: Nabeen Dulal, David Chalmers, Robert A. Shanks, Benu Adhikari, Harsharn GillAbstract:Diffusion of erucamide and their morphology on surface characteristics of high-density polyethylene (HDPE) screw caps depend on storage conditions. Erucamide performance relies on its amount, distribution, and consistency on the surface of HDPE. Specific application and removal torques can be achieved by controlling the amount of erucamide on the surface. The surface amount and the torque increased to an optimum level at 38 and 50 °C within 120 hours of incubation, while they remained unchanged for lower temperatures. Erucamide diffused to the surface and formed flat plate-like crystal structures at similar time and temperature. These flat-plates can slide over each other and provide the Slip required to decrease the torque. An increase in contact angle demonstrated that hydrophobic hydrocarbon-chains of amide Slip Additives were oriented toward the air interface. An optimum surface amount of erucamide for proper sealing torque could be produced at a different combination of storage time and temperature.
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Slip Additive migration surface morphology and performance on injection moulded high density polyethylene closures
Journal of Colloid and Interface Science, 2017Co-Authors: Nabeen Dulal, Thomas R Gengenbach, Harsharn Gill, David Chalmers, Robert A. Shanks, Benu Adhikari, Isaac Pardo MartinezAbstract:Abstract Hypothesis The amount and distribution of Slip agents, erucamide, and behenamide, on the surface of high-density polyethene, is determined by integral characteristics of Slip agent structure and polymer morphology. A suite of surface analysis techniques was applied to correlate physicochemical properties with Slip-Additive migration behaviour and their surface morphology. The migration, surface morphology and physicochemical properties of the Slip Additives, crystallinity and orientation of polyethene spherulites and interaction between Slip Additives and high-density polyethene influence the surface characteristics. Experimental The high-density polyethene closures were produced with erucamide and behenamide separately and stored until they produced required torque. Surface composition was determined employing spectroscopy and gas chromatography. The distribution of Additives was observed under optical, scanning electron and atomic force microscopes. The surface energy, crystallinity and application torque were measured using contact angle, differential scanning calorimeter and a torque force tester respectively. Results and discussion Each Slip Additive produced a characteristic amide peak at 1645 cm−1 in infrared spectroscopy and peaks of oxygen and nitrogen in X-ray photoelectron spectroscopy, suggesting their presence on the surface. The erucamide produced placoid scale-like structures and behenamide formed denticulate structures. The surface erucamide and behenamide responsible for reducing the torque was found to be 15.7 µg/cm2 and 1.7 µg/cm2.
Robert A. Shanks - One of the best experts on this subject based on the ideXlab platform.
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migration and performance of erucamide Slip Additive in high density polyethylene bottle caps
Journal of Applied Polymer Science, 2018Co-Authors: Nabeen Dulal, David Chalmers, Robert A. Shanks, Benu Adhikari, Harsharn GillAbstract:Diffusion of erucamide and their morphology on surface characteristics of high-density polyethylene (HDPE) screw caps depend on storage conditions. Erucamide performance relies on its amount, distribution, and consistency on the surface of HDPE. Specific application and removal torques can be achieved by controlling the amount of erucamide on the surface. The surface amount and the torque increased to an optimum level at 38 and 50 °C within 120 hours of incubation, while they remained unchanged for lower temperatures. Erucamide diffused to the surface and formed flat plate-like crystal structures at similar time and temperature. These flat-plates can slide over each other and provide the Slip required to decrease the torque. An increase in contact angle demonstrated that hydrophobic hydrocarbon-chains of amide Slip Additives were oriented toward the air interface. An optimum surface amount of erucamide for proper sealing torque could be produced at a different combination of storage time and temperature.
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Slip Additive migration surface morphology and performance on injection moulded high density polyethylene closures
Journal of Colloid and Interface Science, 2017Co-Authors: Nabeen Dulal, Thomas R Gengenbach, Harsharn Gill, David Chalmers, Robert A. Shanks, Benu Adhikari, Isaac Pardo MartinezAbstract:Abstract Hypothesis The amount and distribution of Slip agents, erucamide, and behenamide, on the surface of high-density polyethene, is determined by integral characteristics of Slip agent structure and polymer morphology. A suite of surface analysis techniques was applied to correlate physicochemical properties with Slip-Additive migration behaviour and their surface morphology. The migration, surface morphology and physicochemical properties of the Slip Additives, crystallinity and orientation of polyethene spherulites and interaction between Slip Additives and high-density polyethene influence the surface characteristics. Experimental The high-density polyethene closures were produced with erucamide and behenamide separately and stored until they produced required torque. Surface composition was determined employing spectroscopy and gas chromatography. The distribution of Additives was observed under optical, scanning electron and atomic force microscopes. The surface energy, crystallinity and application torque were measured using contact angle, differential scanning calorimeter and a torque force tester respectively. Results and discussion Each Slip Additive produced a characteristic amide peak at 1645 cm−1 in infrared spectroscopy and peaks of oxygen and nitrogen in X-ray photoelectron spectroscopy, suggesting their presence on the surface. The erucamide produced placoid scale-like structures and behenamide formed denticulate structures. The surface erucamide and behenamide responsible for reducing the torque was found to be 15.7 µg/cm2 and 1.7 µg/cm2.