Vk. Sharma et al., ELECTRON-BEAM (EB) CROSS-LINKING OF PVC INSULATION IN PRESENCE OF SENSITIZER ADDITIVES, Radiation physics and chemistry, 45(5), 1995, pp. 695-701
Citations number
14
Categorie Soggetti
Nuclear Sciences & Tecnology","Chemistry Physical","Physics, Atomic, Molecular & Chemical
Radiation crosslinking of flexible PVC (polyvinyl chloride) was studie
d with the aim of developing a suitable insulation to be used in vario
us electrical appliances, PVC insulation material containing three dif
ferent sensitisers like tetra-ethyl glycol dimethacrylate, ethylene gl
ycol dimethacrylate and trimethylol propane trimethacrylate were irrad
iated with electron beam radiation up to 150 kGy dose and the effect o
f sensitiser on the radiation cross-linking has been investigated. Bes
ides this, thermal stability of insulation having stabilisers (such as
tri-basic lead sulphate and di-basic lead phthalate) has also been st
udied. Tensile strength, volume resistivity, and decomposition tempera
ture, have been found to be improved under irradiation, whereas long t
erm aging characteristics at elevated temperature deteriorate. However
glass transition temperature does not show significant change up to 1
00 kGy dose. It was also observed that TMPTM (tri-methylol propane tri
-methacrylate) is a better cross linking agent, whereas DBLP (di-basic
lead phthalate) appears to contribute towards better thermal stabilit
y.