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.

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. 

A study of roles of different valence of copper oxide interaction with electron beam irradiation in polyethylene composite

2015 ◽  
Vol 30 (7) ◽  
pp. 915-937
Author(s):  
Soo-Tueen Bee ◽  
Lee Tin Sin ◽  
CT Ratnam ◽  
Gin-Khuan Chua ◽  
AR Rahmat
Keyword(s):  
Tensile Strength ◽  
Electron Beam ◽  
Crystallite Size ◽  
Electron Beam Irradiation ◽  
Cross Linking ◽  
Beam Irradiation ◽  
Polyethylene Composite ◽  
Loading Level ◽  
Irradiation Dosage ◽  
Ldpe Composites

The aim of this research was to investigate the interaction of electron beam irradiation on the different valence of copper (I) and copper (II) oxides (Cu2O and CuO) added low-density polyethylene (LDPE) composites. The results showed the increasing of Cu2O loading level in replacing the CuO has significantly reduced the gel content (or degree of cross-linking networks) in LDPE matrix. This is due to the poorer effect of Cu2O in inducing the polymeric free radicals. Meanwhile, the application of low irradiation dosage (≤100 kGy) has significantly increased the crystallite size for crystallite peak (110) of all LDPE composites. However, further increment in irradiation dosages from 100 to 300 kGy has gradually reduced the crystallite size of deflection peak (110). The tensile strength of all LDPE composites was gradually decreased with increasing of Cu2O loading level due to agglomeration of Cu2O and CuO particles in LDPE matrix. In addition, the increasing of irradiation dosages on all Cu2O /CuO added LDPE composites has gradually increased the tensile strength by inducing the formation of the cross-linking networks in LDPE matrix. Nevertheless, the increasing of irradiation dosage has gradually decreased the elongation at break of all Cu2O /CuO added LDPE composites. This is due to the higher degree of cross-linking networks in LDPE matrix could restrict the mobility of LDPE macromolecular chains when subjected to straining stress.

Improvements of physical and mechanical properties of electron beam irradiation-crosslinked EVA foams

2009 ◽  
Vol 20 (5) ◽  
pp. 487-492 ◽  
Author(s):  
Iraj Rezaeian ◽  
Seyed Hassan Jafari ◽  
Payam Zahedi ◽  
Mehdi Ghaffari ◽  
Shirin Afradian
Keyword(s):  
Mechanical Properties ◽  
Electron Beam ◽  
Electron Beam Irradiation ◽  
Physical 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

scholarly journals Radiation Processing and Characterization of Some Ethylene-propylene-diene Terpolymer/Butyl (Halobutyl) Rubber/Nanosilica Composites

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2431
Author(s):  
Elena Manaila ◽  
Anton Airinei ◽  
Maria Daniela Stelescu ◽  
Maria Sonmez ◽  
Laurentia Alexandrescu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Electron Beam ◽  
Water Uptake ◽  
Irradiation Dose ◽  
Electron Beam Irradiation ◽  
Rubber Matrix ◽  
Scanning Electron Microscopy Data ◽  
Beam Irradiation ◽  
Ethylene Propylene ◽  
Ethylene Propylene Diene Terpolymer

Composites based on ethylene–propylene–diene terpolymer (EPDM), butyl/halobutyl rubber and nanosilica were prepared by melt mixing and subjected to different doses of electron beam irradiation. The effect of irradiation dose on the mechanical properties, morphology, glass transition temperature, thermal stability and water uptake was investigated. The efficiency of the crosslinking by electron beam irradiation was analyzed by Charlesby–Pinner parameter evaluation and crosslink density measurements. The scanning electron microscopy data showed a good dispersion of nanosilica in the rubber matrix. An improvement in hardness and 100% modulus was revealed by increasing irradiation dose up to 150 kGy. The interaction between polymer matrix and nanosilica was analyzed using the Kraus equation. Additionally, these results indicated that the mechanical properties, surface characteristics, and water uptake were dependent on crosslink characteristics.

Effect of electron beam irradiation on mechanical properties of unsaturated polyester/nanoclay composites reinforced with carbon and glass fibers

2020 ◽  
Vol 141 ◽  
pp. 103265 ◽  
Author(s):  
Seyed Mohammad Razavi ◽  
Seyed Javad Ahmadi ◽  
Peyman Rahmani Cherati ◽  
Mina Hadi ◽  
Seyed Amir Reza Ahmadi
Keyword(s):  
Mechanical Properties ◽  
Electron Beam ◽  
Electron Beam Irradiation ◽  
Unsaturated Polyester ◽  
Glass Fibers ◽  
Beam Irradiation
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