Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Differentiation of silane adsorption onto model E-glass surfaces from mixed solutions of amino and glycidyl silanes

Liu, X.M. and Thomason, J.L. and Jones, F.R. (2006) Differentiation of silane adsorption onto model E-glass surfaces from mixed solutions of amino and glycidyl silanes. In: 12th European Conference on Composite Materials, 2006-08-29 - 2006-09-01, Biarritz, France.

[img]
Preview
PDF (strathprints006496.pdf)
Download (267Kb) | Preview

    Abstract

    Mixed silanes are often used as coupling agents in sizings for glass fibres. A technique has been developed which enables the preferential adsorption of a particular silane onto a model E-glass from a mixed aqueous silane solution to be probed. It is shown that γ-Aminopropyltriethoxysilane (APS) is preferentially adsorbed over γ-glycidoxypropyltrimethoxysilane (GPS) onto model E-glass fibres. High resolution X-ray photoelectron spectroscopy (XPS) has been employed to investigate the nature of silane deposits. Differentiation between the hydrolysed silane deposit and the model silica-based glass substrate was achieved by Si2p curve fitting. The extent of total silane adsorption onto model E-glass fibres was determined from the intensity of CSiO3 peak. In the case of APS/GPS mixed silanes, the N1s peak intensity provides the concentration of APS in the deposit. By comparing the relative intensities of the components in the Si2p3/2 and Si2p1/2 peaks for SiO4 and CSiO3 with the intensity of the N1s peak an assessment of differential adsorption proved possible.

    Item type: Conference or Workshop Item (Paper)
    ID code: 6496
    Notes: This is a variant record.
    Keywords: e-glass fibres, model surfaces, silanes, coupling agents, X-ray photoelectron spectroscopy (XPS), Mechanical engineering and machinery, Chemistry
    Subjects: Technology > Mechanical engineering and machinery
    Science > Chemistry
    Department: Faculty of Engineering > Mechanical and Aerospace Engineering
    Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 14 Jul 2008
    Last modified: 06 Oct 2012 07:48
    URI: http://strathprints.strath.ac.uk/id/eprint/6496

    Actions (login required)

    View Item

    Fulltext Downloads: