Influence of electron beam irradiation on the mechanical properties of pbat/pla polymeric blend / Influência da irradiação por feixe de electrões nas propriedades mecânicas da mistura polimérica pbat/pla

2021 ◽  
Vol 7 (8) ◽  
pp. 79528-79537
Author(s):  
Pedro Marcio Munhoz ◽  
Fernando Codelo Nascimento ◽  
Leonardo Gondim de Andrade e Silva ◽  
Julio Harada ◽  
Wilson Aparecido Parejo Calvo
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Electron Beam ◽  
Electron Beam Irradiation ◽  
Impact Resistance ◽  
Poly Lactic Acid ◽  
Beam Irradiation ◽  
Radiation Process ◽  
Izod Impact ◽  
Polymeric Blend

The aim of this research was to evaluate the changes in the mechanical properties of poly(butylene adipate co-terephthalate)/poly(lactic acid) (PBAT/PLA) polymeric blend after the radiation process at different radiation doses. The irradiation was performed in an electron beam accelerator, with 1.5 MeV of energy and 25 mA electric current. The samples were irradiated with doses of 5, 10, 15, 25, 50, 65 and 80 kGy. Both irradiated and non-irradiated samples were characterized by Izod pendulum impact resistance and tensile strength at rupture. The results showed an increase of 44% in relation to Izod impact resistance at a dose of 65 kGy. However, the module of elasticity decreased 56% and tensile strength at rupture decreased 55% at the same radiation dose. In relation to elongation, significant alterations caused by electron beam irradiation was not observed. Therefore, it can be concluded that irradiated blends could be used to make environmentally friendly products, which could absorb impact energy. 

scholarly journals Influence of electron beam irradiation on the mechanical properties of PBAT/PLA polymeric blend / Influência da irradiação do feixe de elétron nas propriedades mecânicas da mistura polimérica PBAT/PLA

2021 ◽  
Vol 7 (8) ◽  
pp. 78782-78792
Author(s):  
Pedro Marcio Munhoz ◽  
Fernando Codelo Nascimento ◽  
Leonardo Gondim De Andrade e Silva ◽  
Julio Harada ◽  
Wilson Aparecido Parejo Calvo
Keyword(s):  
Mechanical Properties ◽  
Electron Beam ◽  
Electron Beam Irradiation ◽  
Beam Irradiation ◽  
Polymeric Blend

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

2019 ◽  
Vol 33 (26) ◽  
pp. 1950305 ◽  
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.

Effect of Electron Beam Irradiation on Mechanical Properties of Copper (II) Oxide Added LDPE Composites Aged under Acidic Condition

2015 ◽  
Vol 786 ◽  
pp. 13-17
Author(s):  
Tiam Ting Tee ◽  
Soo Tueen Bee ◽  
Tin Sin Lee ◽  
Chantara Thevy Ratnam ◽  
Haraveen Kaur Jogindar Singh ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Electron Beam ◽  
Aging Time ◽  
Electron Beam Irradiation ◽  
Physical And Mechanical Properties ◽  
Acidic Condition ◽  
Beam Irradiation ◽  
Time Duration ◽  
Ldpe Composites

In this study, the effect of aging time duration in acidic solution and electron beam irradiation on the physical and mechanical properties of copper (II) oxide added LDPE composites haven been investigated. The tensile strength of all (3 phr and 5 phr) copper (II) oxide added LDPE composites was gradually increased with increasing of electron beam irradiation dosages from 0 kGy to 200 kGy. The electron beam irradiation could induce the formation of crosslinking networks in LDPE matrix by increasing the resistance ability of LDPE matrix towards applied straining stress. The increasing of aging time duration in acidic condition up to 4 days has marginally reduced the tensile strength of all un-irradiated and irradiated all copper (II) oxide added LDPE composites. This might be attributed to the hydrochloric acid solution could degrade and breakdown the macromolecular chains in LDPE matrix and thus further reduce the tensile strength of copper (II) oxide added LDPE composites.

Effects of electron beam irradiation on thermal and mechanical properties of poly(lactic acid) films

2016 ◽  
Vol 133 ◽  
pp. 293-302 ◽  
Author(s):  
Mohammed Mansouri ◽  
Abdelkader Berrayah ◽  
Christophe Beyens ◽  
Christine Rosenauer ◽  
Charafeddine Jama ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Electron Beam ◽  
Lactic Acid ◽  
Electron Beam Irradiation ◽  
Poly Lactic Acid ◽  
Thermal And Mechanical Properties ◽  
Beam Irradiation

scholarly journals Toward recycling ʺunsortableʺ post-consumer WEEE stream: Characterization and impact of electron beam irradiation on mechanical properties

2021 ◽  
Vol 294 ◽  
pp. 126300
Author(s):  
Imane Belyamani ◽  
Joachim Maris ◽  
Sylvie Bourdon ◽  
Jean-Michel Brossard ◽  
Laurent Cauret ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Electron Beam ◽  
Electron Beam Irradiation ◽  
Beam Irradiation ◽  
Stream Characterization
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