Performance of Silane Coupling Agents

Plueddemann, Edwin P.

doi:10.1007/978-1-4899-2070-6_6

Cited by 325 publications

(510 citation statements)

References 4 publications

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“…Silanes are often used as adhesion promotors in reinforced plastics. Here, they improve the mechanical stability of the interfaces of glass fibres, inorganic fibres, or natural fibres, and minerals with a polymer matrix [1]. Moreover, they allow the design of tailored interfacial phases which in turn can control the properties of composite materials [2,3,4].…”

Section: Introductionmentioning

confidence: 99%

X-ray photoelectron spectroscopy for detection of the different Si–O bonding states of silicon

et al. 2003

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X-ray photoelectron spectroscopy (XPS) was used to detect the bonding between a silica particle surface and attached silanes. In addition to the commonly recorded Si 2p spectrum, the Si 1 s level is also accessible when monochromatic Ag Lalpha X-rays are applied. Furthermore, the spectrum of the Si 1 s level shows a fine structure. After spectrum deconvolution, we assigned the fitted spectral peaks to Si-C bonds of the silanes and to the Si-O bonds of the silica network. The recorded Si 1 s spectra were deconvoluted into peaks originating from Si-C bonds and the Si-O-Si silica network. To check the results of spectrum deconvolution, several differently functionalized silanes containing stoichiometric amounts of heteroatoms were applied for silica surface modification. We conclude that spectra deconvolution of the Si 1 s signal is an appropriate means for quantification of surface attached silane molecules.

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Section: Introductionmentioning

confidence: 99%

X-ray photoelectron spectroscopy for detection of the different Si–O bonding states of silicon

et al. 2003

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“…[12][13][14] To improve adhesion and enhance resistance to environmental degradation, techniques have emerged that use organosilane adhesion promoters to replace the weak secondary bonds (VDW) at the polymersubstrate interface with stronger covalent bonds. [15][16][17] Silane adhesion promoters are typically used as intermediate layers between inorganic substrates (e.g., glass or metal) and the polymer or adhesive layer. Such methods have been shown to improve the interface resistance to hydrolytic degradation in wet environments.…”

Section: Introductionmentioning

confidence: 99%

“…Such methods have been shown to improve the interface resistance to hydrolytic degradation in wet environments. 15,16,18,19 However, to date, quantitative adhesion and subcritical debond growth-rate behavior under more realistic fatigue loading conditions that simulate actual physiological loading is lacking.…”

Section: Introductionmentioning

confidence: 99%

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Effects of an adhesion promoter on the debond resistance of a metal-polymethylmethacrylate interface

Ohashi

Yerby

Dauskardt

2000

J. Biomed. Mater. Res.

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Debonding and premature failure of prostheticpolymethylmethacrylate interfaces have been shown to be exacerbated by exposure to physiological environment. In efforts to counteract these hydrolytic degradation effects, two clinically relevant Co-Cr-Mo surface morphologies were treated with an organosilane adhesion promoter (gamma-methacyloxypropyltrimethoxy) before interface bonding. Samples were quantitatively characterized in terms of the adhesion (fracture) and subcritical debond growth-rate (fatigue) behavior of the interface. The steady-state interface debond resistance, Gss (J/m2), was shown to increase with application of the silane pretreatment both in air (20 degrees C, 45% relative humidity) and simulated physiological environment (37 degrees C, Ringer's). Similarly, positive shifts in the subcritical debond threshold, deltaG(TH), values are observed for silane pretreated interfaces. A shift in the debond path from primarily adhesive failure in untreated surfaces to cohesive failure between the silane layer and bulk polymethylmethacrylate for silane treated surfaces was observed. Silane pretreatment of Co-Cr-Mo surfaces was shown to effectively limit the degree of the environmental degradation. General insights to the effects of surface roughness, chemical enhancement, and the environmental effects on the thermodynamics at the interface and resulting debond behavior are discussed.

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“…Films with a cross-shaped scratch were immersed in boiling water for eight hours without peeling of the coated layer from the glass and silicon substrates probably due to a high density of the siloxane bonds. The hydrolytically stable bond between the glass and the plasma polymer can be used for glass-fibre reinforced polymer composites as the commercial coatings (silane coupling agents) are hydrolytically unstable [8]. Therefore, glass fibres coated by the plasma polymer were tested as well.…”

Section: Introductionmentioning

confidence: 99%

Thin plasma-polymerized films of dichloro(methyl)phenylsilane

et al. 2000

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Thin plasma polymer films were deposited from a mixture of dichloro(methyl)phenylsilane (DCMPS) vapour and gaseous hydrogen in a r.f. (13.56 MHz) capacitive coupling deposition system on pieces of silicon wafers. Some samples were annealed in vacuum at the temperature ranging from 450 to 700 o C. Chemical composition, structure and surface morphology of annealed samples and those stored in air at room temperature were studied by FTIR, XPS, SEM, and optical microscopy. Thermal stability and a decomposition of the plasma polymer with increasing temperature were characterized by thermogravimetry together with mass spectrometry. The plasma polymer was stable up to a temperature of 300 o C. Above that temperature the material started to decompose together with additional cross-linking due to incorporation of extra oxygen atoms forming new siloxane bonds. The plasma polymer was tough at room temperature but much more brittle at elevated temperatures.

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Performance of Silane Coupling Agents

Cited by 325 publications

References 4 publications

X-ray photoelectron spectroscopy for detection of the different Si–O bonding states of silicon

X-ray photoelectron spectroscopy for detection of the different Si–O bonding states of silicon

Effects of an adhesion promoter on the debond resistance of a metal-polymethylmethacrylate interface

Thin plasma-polymerized films of dichloro(methyl)phenylsilane

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