Rheological Properties of Poly(Lactic acid) Modified by Electron Beam Irradiation

In this study, we blended poly(ε-caprolactone) (PCL) into poly(lactic acid) (PLA) and compatibilized these PLA/PCL blends by electron-beam irradiation in the presence of a reactive agent to overcome drawbacks of PLA. To produce compatibilized blends, mixtures of the PLA/PCL/reactive agent were prepared using a twin-screw extruder and exposed to electron-beam radiation at room temperature. Glycidyl methacrylate (GMA) was chosen as the reactive agent to achieve interfacial cross-copolymerization between PLA and PCL phases. Morphological, rheological, and mechanical properties and biodegradabilities of blends were investigated. The morphological study showed significantly improved interfacial adhesion for compatibilized blends, and this was supported by FTIR analysis and a rheological study. Impact strengths, thermal stabilities, and rheological properties of PLA/PCL blends were improved by compatibilization, and the biodegradabilities of compatibilized PLA/PCL blends were greater than that of pure PLA.

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Effect of electron beam irradiation on thermal and mechanical properties of poly (lactic acid)/poly (ethylene-co-glycidyl methacrylate) blend

10.1063/1.4984186 ◽

2017 ◽

Cited By ~ 1

Author(s):

Ashish Kumar ◽

T. Venkatappa Rao ◽

S. Ray Chowdhury ◽

S. V. S. R. Reddy

Keyword(s):

Mechanical Properties ◽

Electron Beam ◽

Lactic Acid ◽

Glycidyl Methacrylate ◽

Electron Beam Irradiation ◽

Poly Lactic Acid ◽

Thermal And Mechanical Properties ◽

Beam Irradiation ◽

Poly Ethylene

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Compatibilization of immiscible poly(lactic acid)/poly(ε-caprolactone) blend through electron-beam irradiation with the addition of a compatibilizing agent

Radiation Physics and Chemistry ◽

10.1016/j.radphyschem.2012.10.001 ◽

2013 ◽

Vol 83 ◽

pp. 98-104 ◽

Cited By ~ 29

Author(s):

Boo Young Shin ◽

Do Hung Han

Keyword(s):

Electron Beam ◽

Lactic Acid ◽

Electron Beam Irradiation ◽

Poly Lactic Acid ◽

Beam Irradiation ◽

Compatibilizing Agent

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Optimization of mechanical, thermal and hydrolytic degradation properties of Poly (lactic acid)/Poly (ethylene-co-glycidyl methacrylate)/Hexagonal boron nitride blend-composites through electron-beam irradiation

Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms ◽

10.1016/j.nimb.2018.05.011 ◽

2018 ◽

Vol 428 ◽

pp. 38-46 ◽

Cited By ~ 4

Author(s):

Ashish Kumar ◽

T. Venkatappa Rao ◽

Subhendu Ray Chowdhury ◽

S.V.S. Ramana Reddy

Keyword(s):

Electron Beam ◽

Lactic Acid ◽

Glycidyl Methacrylate ◽

Electron Beam Irradiation ◽

Hexagonal Boron Nitride ◽

Hydrolytic Degradation ◽

Poly Lactic Acid ◽

Beam Irradiation ◽

Poly Ethylene ◽

Degradation Properties

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Mechanical properties of bio-fiber composites reinforced with luffa cylindrica irradiated by electron beam

International Journal of Modern Physics B ◽

10.1142/s0217979219503053 ◽

2019 ◽

Vol 33 (26) ◽

pp. 1950305 ◽

Cited By ~ 2

Author(s):

Subhashree Patra ◽

Kamal Lochan Mohanta ◽

Chhatrapati Parida

Keyword(s):

Mechanical Properties ◽

Electron Beam ◽

Lactic Acid ◽

Electron Beam Irradiation ◽

Natural Fiber ◽

Waste Product ◽

Fiber Composites ◽

Poly Lactic Acid ◽

Beam Irradiation ◽

Luffa Cylindrica

This investigation aims to analyze the effects of electron beam irradiation on the morphological and mechanical properties of green composites synthesized using natural fibers of luffa cylindrica (LC) and biodegradable polymer poly (lactic) acid. This work aims to transform the low priced, readily available, agricultural waste product LC fiber into a high value product. The major challenge during the fabrication of natural fiber composites is the chemical bonding between hydrophilic LC fiber and hydrophobic poly lactic acid (PLA) matrix. Due to the disagreeing chemical nature of fiber and matrix, they are not compatible. The fibers are exposed to physical treatment, i.e., electron beam irradiation of different doses 0.5, 1.0, 2.0, 4.0 and 10.0 Gy using 6 MeV medical linear accelerator to increase the compatibility of LC fiber with PLA. Before irradiation, LC fibers are modified with calcium salts to explore the use of composite materials in biomedical terrain. When PLA is reinforced with irradiated LC fiber, tensile strength increases by 79.87% and flexural strength increases by 177%. Mechanical parameters generated by flexural and tensile tests of this study can be explored to have various clinical applications like bone implant, replacement of cervical cavities, etc.

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