|
|
|
Electron beam irradiated HDPE/EVA/Mg(OH) composites for flame-retardant electric cables |
| LIU Hui1, ALKADASI Nabil A. Noman1, ZHU Yan1, TONG Li-fang1, FANG Zheng-ping2, WANG Yong-chang3 |
| 1.Institute of Polymer Composites, Zhejiang University/Key Laboratory of Macromolecular Synthesis and Functionalization; 2.Institute of Polymer Composites, Zhejiang University/Key Laboratory of Macromolecular Synthesis and Functionalization；Lab of Polymer Materials and Engineering, Ningbo Institute of Technology, Zhejiang University; 3.Zhejiang Institute of Technical Physics |
|
|
|
|
Abstract The mechanical properties and flammability of high-density polyethylene (HDPE)/ethylene vinyl acetate (EVA) mixed with various amounts of magnesium hydroxide (Mg(OH)2) as the filler in composites, irradiated with electron beam at an irradiation dose of 150 kGy, have been studied. It is found that high-energy electron beam irradiation has significant effects on the mechanical properties of the HDPE/EVA/Mg(OH)2 composites. The tensile strength and elastic modulus increased greater than in the unirradiated ones. Meanwhile, with increasing the content of Mg(OH)2 in the composites, the limiting oxygen index (LOI) value increased sharply. The microstructure of the caves of the unirradiated HDPE/EVA/Mg(OH)2 composites show poor interface of composites compared with the irradiated ones, as observed in SEM micrographs.
|
|
Issue Date: 05 December 2008
|
|
| 1 |
Mateev M, Karageorgiev S . The effect of electron beamirradiation and content of EVA upon the gel-forming processes in LDPE-EVAfilms. Radiation Physics and Chemistry, 1998, 51(2): 205–206.
doi:10.1016/S0969-806X(97)00124-2
|
| 2 |
Zhu A, Cao X . The electron-beam irradiationcross-linking and modifying of high density polyethylene insulation. In: The 6th International Conference on Propertiesand Applications of Dielectric Materials, Xi'an, China, 2000
|
| 3 |
Gheysari D, Behjat A . The effect of high-energyelectron beam irradiation and content of ATH upon mechanical and thermalproperties of EVA copolymer. European PolymerJournal, 2002, 38(6): 1087–1093.
doi:10.1016/S0014-3057(01)00281-6
|
| 4 |
Li Z Z, Qu B J . Effects of gamma irradiationon the properties of flame-retardant EVM/magnesium hydroxide blends. Radiation Physics and Chemistry, 2004, 69(2): 137–141.
doi:10.1016/S0969-806X(03)00446-8
|
| 5 |
Jipa S, Zaharescu T, Marcuta M, et al.. Synergistic effects of EB irradiation and heaton EVA electrical insulators. Nuclear Instruments &Methods in Physics Research Section B – Beam Interactions withMaterials and Atoms, 2005, 236: 567–574.
doi:10.1016/j.nimb.2005.04.044
|
| 6 |
Lu H D, Hu Y, Xiao J F, et al.. The influence of irradiation on morphology evolutionand flammability properties of maleated polyethylene/clay nanocomposite. Materials Letters, 2005, 59(6): 648–651.
doi:10.1016/j.matlet.2004.10.057
|
| 7 |
Jiao C M, Wang Z Z, Chen X L, et al.. Irradiation crosslinking and halogen-free flameretardation of EVA using hydrotalcite and red phosphorus. Radiation Physics and Chemistry, 2006, 75(5): 557–563.
doi:10.1016/j.radphyschem.2005.11.003
|
| 8 |
Basfar A A . Flammability of radiation cross-linked low density polyethylene asan insulating material for wire and cable. Radiation Physics and Chemistry, 2002, 63(3–6): 505–508.
doi:10.1016/S0969-806X(01)00545-X
|
| 9 |
Basfar A A . Flame retardancy of radiation cross-linked poly(vinyl chloride) (PVC)used as an insulating material for wire and cable. Polymer Degradation and Stability, 2002, 77(2): 221–226.
doi:10.1016/S0141-3910(02)00037-X
|
| 10 |
Dadbin S, Frounchi M, Saeid M H, et al.. Molecular structure and physical propertiesof E-beam crosslinked low-density polyethylene for wire and cableinsulation applications. Journal of AppliedPolymer Science, 2002, 86(8): 1959–1969.
doi:10.1002/app.11111
|
| 11 |
Machi S . Newtrends of radiation processing applications. Radiation Physics and Chemistry 1996, 47(3): 333–336.
doi:10.1016/0969-806X(95)00125-H
|
| 12 |
Gheysari D, Behjat A, Haji-Saeid M . The effect of high-energy electron beam on mechanicaland thermal properties of LDPE and HDPE. European Polymer Journal, 2001, 37(2): 295–302.
doi:10.1016/S0014-3057(00)00122-1
|
| 13 |
Sharif J, Aziz S H S A, Hashim K . Radiation effects on LDPE/EVA blends. Radiation Physics and Chemistry, 2000, 58(2): 191–195.
doi:10.1016/S0969-806X(99)00373-4
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
