Grafting acrylic acid onto polypropylene by reactive extrusion with pre-irradiated PP as initiator

In this paper, the modification of polypropylene (PP) with acrylic acid (AA) by reactive extrusion using pre-irradiated PP (rPP) as initiator was investigated. It was found the relatively high graft degree (Gd) and slight degradation of modified PP was obtained when 20 wt% rPP was used. This result...

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Bibliographic Details
Published in:Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 2008-03, Vol.77 (3), p.370-372
Main Authors: Cai, Chuanlun, Shi, Qiang, Li, Lili, Zhu, Lianchao, Yin, Jinghua
Format: Article
Language:English
Subjects:
Acrylic acid
Grafting
Polypropylene
Pre-irradiated
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Summary:In this paper, the modification of polypropylene (PP) with acrylic acid (AA) by reactive extrusion using pre-irradiated PP (rPP) as initiator was investigated. It was found the relatively high graft degree (Gd) and slight degradation of modified PP was obtained when 20 wt% rPP was used. This result can be explained in terms of effective concentration of free radicals. Compared with the neat PP, the modified PP showed the high-notched impact strength and improved adhesion of PP to polar substrate. This technique is of potential industrial interest for PP modification.
ISSN:0969-806X
1879-0895
DOI:10.1016/j.radphyschem.2007.02.081