Irradiation crosslinking of unplasticized polyvinyl chloride in the presence of additives

Authors
Ratnam, CT Nasir, M Baharin, A
Citation
Ct. Ratnam et al., Irradiation crosslinking of unplasticized polyvinyl chloride in the presence of additives, POLYM TEST, 20(5), 2001, pp. 485-490
Citations number
34
Categorie Soggetti
Material Science & Engineering
Journal title
POLYMER TESTING
ISSN journal
01429418 → ACNP
Volume
20
Issue
5
Year of publication
2001
Pages
485 - 490
Database
ISI
SICI code
0142-9418(2001)20:5<485:ICOUPC>2.0.ZU;2-S
Abstract
Electron beam initiated crosslinking of unplasticized polyvinyl chloride, U PVC, has been carried out over a range of irradiation doses (20-200 kGy). T he effects of trimethylolpropane triacrylate (TMPTA) and Irganox 1010 on th e rate of crosslinking were also studied. Changes in gel fraction, hardness , tensile strength and damping properties upon irradiation were investigate d. Results revealed that under the irradiation conditions employed, the sta bilized UPVC are crosslinked by the electron beam. Addition of 4 phr TMPTA was found to be effective in increasing the rate while Irganox 1010 inhibit s crosslinking. A considerable increase in glass transition temperature upo n irradiation of UPVC in the presence of TMPTA was noted. Further, within t he dose range studied, the degradation caused by electron beam irradiation was found to be minimal. (C) 2001 Elsevier Science Ltd. All rights reserved .