Electron beam irradiation enhanced of Hibiscus cannabinus fiber strengthen polylactic acid composites

2015 ◽  
Vol 79 ◽  
pp. 35-46 ◽  
Author(s):  
Soo-Tueen Bee ◽  
Lee Tin Sin ◽  
C.T. Ratnam ◽  
R.R.D. Kavee-Raaz ◽  
Tiam-Ting Tee ◽  
...  
Keyword(s):  
Electron Beam ◽  
Polylactic Acid ◽  
Electron Beam Irradiation ◽  
Hibiscus Cannabinus ◽  
Beam Irradiation

Modification of Polylactic Acid/ Halloysite Bionanocomposites Using Electron Beam Radiation: Physical, Barrier and Thermal Properties

2020 ◽  
Vol 1002 ◽  
pp. 57-65
Author(s):  
Abdulkader M. Alakrach ◽  
Nik Noriman Zulkepli ◽  
Awad A. Al-Rashdi ◽  
Sam Sung Ting ◽  
Rosniza Hamzah ◽  
...  
Keyword(s):  
Electron Beam ◽  
Polylactic Acid ◽  
Food Packaging ◽  
Electron Beam Irradiation ◽  
Casting Process ◽  
Barrier Properties ◽  
Beam Irradiation ◽  
Beam Radiation ◽  
Electron Beam Processing ◽  
The Impact

This study aimed to develop novel Polylactic acid/ Halloysite (PLA/ HNTs) films which showed better properties when they were used for food packaging. They also displayed better mechanical, barrier, morphological and structural properties when the researchers analysed the impact of the electron beam irradiation on the nanomaterials. They prepared PLA-based nanocomposites containing 5 % w/w of HNTs using the solution casting process. These nanocomposites were further exposed to different ebeam doses (i.e., 0, 20, 40 and 60 kGy). The researchers assessed the effect of the electron beam irradiation on the various properties of the PLA. All the composites showed a homogenous dispersion and distribution of the HNTs in this PLA matrix. Results indicated that the nanocomposites showed better barrier properties in comparison to the neat PLA. Furthermore, the ebeam irradiation could increase the glass-transition temperature and lead to the development of more crosslinks, which increased the degradation temperature and hydrophilicity of the nanocomposites. In this study, the researchers showed that the PLA/HNTs films were effective materials that could be used for the electron beam processing of the pre-packed foods. The best effect was noted for the 20 kGy dosage which was used in the study.

scholarly journals Influence of Electron Beam Irradiation on Electrical Insulating Properties of PLA with Soft Resin Added †

Polymers ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 898 ◽  
Author(s):  
Katsuyoshi Shinyama
Keyword(s):  
Electron Beam ◽  
Polylactic Acid ◽  
Irradiation Dose ◽  
Electron Beam Irradiation ◽  
Breakdown Strength ◽  
Electric Breakdown ◽  
The Other ◽  
Beam Irradiation ◽  
Other Hand ◽  
Insulating Properties

Polylactic acid (PLA), a bioplastic, is a hard resin, and requires softening in order to be used in electric wire sheaths. A soft resin was added to PLA in order to soften it, but this caused the electric breakdown strength (EB) to decrease. In this study, PLA with soft resin added was irradiated with an electron beam and the influence of the electron beam irradiation on EB was examined. The irradiation dose was set at 100 kGy. At 25 °C, the EB of PLA with no soft resin added decreased due to the irradiation. On the other hand, the EB of PLA with soft resin added showed almost no change due to the irradiation. At 80 °C, the EB of PLA with no soft resin added decreased due to the irradiation, as was the case at 25 °C. On the other hand, the EB of PLA with soft resin added increased due to the irradiation.

Effect of electron beam irradiation on the properties of polylactic acid/montmorillonite nanocomposites for food packaging applications

2015 ◽  
Vol 133 (2) ◽  
pp. n/a-n/a ◽  
Author(s):  
Marcella Salvatore ◽  
Antonella Marra ◽  
Donatella Duraccio ◽  
Shima Shayanfar ◽  
Suresh D. Pillai ◽  
...  
Keyword(s):  
Electron Beam ◽  
Polylactic Acid ◽  
Food Packaging ◽  
Electron Beam Irradiation ◽  
Beam Irradiation ◽  
Montmorillonite Nanocomposites

Rheological and topological characterizations of electron beam irradiation prepared long-chain branched polylactic acid

2011 ◽  
Vol 122 (3) ◽  
pp. 1857-1865 ◽  
Author(s):  
Yongbin Wang ◽  
Liang Yang ◽  
Yanhua Niu ◽  
Zhigang Wang ◽  
Jun Zhang ◽  
...  
Keyword(s):  
Electron Beam ◽  
Polylactic Acid ◽  
Electron Beam Irradiation ◽  
Beam Irradiation ◽  
Long Chain

Methods to Monitor and Improve the Performance of Specimen Holders for Transmission Electron Cryomicroscopy

1996 ◽  
Vol 54 ◽  
pp. 454-455
Author(s):  
B. L. Armbruster ◽  
B. Kraus ◽  
M. Pan
Keyword(s):  
Electron Microscopy ◽  
Electron Beam ◽  
Electron Beam Irradiation ◽  
Beam Irradiation ◽  
Quality Of Data ◽  
Electron Cryomicroscopy ◽  
Thermal Equilibration ◽  
Transmission Electron ◽  
Electron Microscopes

One goal in electron microscopy of biological specimens is to improve the quality of data to equal the resolution capabilities of modem transmission electron microscopes. Radiation damage and beam- induced movement caused by charging of the sample, low image contrast at high resolution, and sensitivity to external vibration and drift in side entry specimen holders limit the effective resolution one can achieve. Several methods have been developed to address these limitations: cryomethods are widely employed to preserve and stabilize specimens against some of the adverse effects of the vacuum and electron beam irradiation, spot-scan imaging reduces charging and associated beam-induced movement, and energy-filtered imaging removes the “fog” caused by inelastic scattering of electrons which is particularly pronounced in thick specimens.Although most cryoholders can easily achieve a 3.4Å resolution specification, information perpendicular to the goniometer axis may be degraded due to vibration. Absolute drift after mechanical and thermal equilibration as well as drift after movement of a holder may cause loss of resolution in any direction.

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