Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171
Loughborough University

Loughborough University Institutional Repository

Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/10881

Title: Aminosilane crosslinking of plasticised poly(vinylchloride) : processing, properties and characterization
Authors: Rodriguez-Fernandez, Oliverio S.
Issue Date: 1994
Publisher: © Oliverio S. Rodriguez-Fernandez
Abstract: The extensive use of Poly(vinyl chloride) (PVC) is partly due to the modification of properties which is possible by the addition of plasticizer. Although plasticized PVC is used at temperatures well above Tg, the properties are favourable and the material has a rubberlike behaviour. This is generally considered to be due to the presence of a physical network consisting of small crystallites. However, its service range is limited by its thermoplastic nature. At temperatures above 100 C it has a tendency to flow and to have a reduced mechanical strength. One way to increase the maximum temperature of plasticized PVC is to introduce a permanent chemical network. The reaction of plasticized PVC with [N-(2-amino ethyl)-3-aminopropyl trimethoxy silane] yielded si lane-grafted PVC that was crosslinked by a hydrolitic mechanism. The grafting of the aminosilane was carried out during processing in both a roll mill followed by compression moulding and in a single screw extruder. A controlled reaction was observed when a tin stabilizer was selected. It was found that other thermal stabilizers accelerate the grafting reaction, but destabilize the polymer. The crosslinking of the grafted PVC has been studied in water at different temperatures. The crosslinking occurred faster at high temperatures and was diffusion controlled.....
Description: A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.
URI: https://dspace.lboro.ac.uk/2134/10881
Appears in Collections:PhD Theses (Materials)

Files associated with this item:

File Description SizeFormat
Thesis-1994-Rodriguez-Fernandez.pdf3.92 MBAdobe PDFView/Open
Form-1994-Rodriguez-Fernandez.pdf41.13 kBAdobe PDFView/Open

 

SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.