Wechselwirkung von Silanen bei mit Dihydroxid Vulkanisiertem Fluorelastomer

M. B. Sands; V. Subramanian; G. Mao

Wechselwirkung von Silanen bei mit Dihydroxid Vulkanisiertem Fluorelastomer

Translated title of the contribution: Interaction of silanes with dihydroxy vulcanised fluoroelastomer

M. B. Sands^*, V. Subramanian, G. Mao

^*Corresponding author for this work

School of Engineering

Research output: Contribution to specialist publication › Article

Abstract

The reactivity of aminosilane and vinylsilane with a dihydroxy (Bisphenol AF) crosslinkable fluoroelastomer containing only vinylidene fluoride (VF ₂) and hexafluoropropylene (HFP) was monitored using Differential Scanning Calorimetry (DSC) and X-ray Photoelectron Spectroscopy (XPS). The DSC results showed that the introduction of an aminosilane, or a combination of aminosilane and vinylsilane solutions, to the cure system of the fluoroelastomer resulted in a peak shift. This shift indicates that crosslinking in fluoroelastomer-silane system occurs at a lower temperature when aminosilane is present. Results also confirm that the organofunctional group on the silane reacts with the elastomer. XPS analysis of the silane-coated fluoroelastomer heated at 120°C, 160°C and 200°C reveals that dehydrofluorination of the polymer is one of the steps in the reaction. It is our hypothesis that the amine group on the aminosilane is a contributor to the dehydrofluorination of the fluoroelastomer.

Translated title of the contribution	Interaction of silanes with dihydroxy vulcanised fluoroelastomer
Original language	German
Pages	565-574
Number of pages	10
Volume	60
No.	9
Specialist publication	Gummi, Fasern, Kunststoffe
Publication status	Published - Sept 2007

Cite this

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title = "Wechselwirkung von Silanen bei mit Dihydroxid Vulkanisiertem Fluorelastomer",

abstract = "The reactivity of aminosilane and vinylsilane with a dihydroxy (Bisphenol AF) crosslinkable fluoroelastomer containing only vinylidene fluoride (VF 2) and hexafluoropropylene (HFP) was monitored using Differential Scanning Calorimetry (DSC) and X-ray Photoelectron Spectroscopy (XPS). The DSC results showed that the introduction of an aminosilane, or a combination of aminosilane and vinylsilane solutions, to the cure system of the fluoroelastomer resulted in a peak shift. This shift indicates that crosslinking in fluoroelastomer-silane system occurs at a lower temperature when aminosilane is present. Results also confirm that the organofunctional group on the silane reacts with the elastomer. XPS analysis of the silane-coated fluoroelastomer heated at 120°C, 160°C and 200°C reveals that dehydrofluorination of the polymer is one of the steps in the reaction. It is our hypothesis that the amine group on the aminosilane is a contributor to the dehydrofluorination of the fluoroelastomer.",

author = "Sands, \{M. B.\} and V. Subramanian and G. Mao",

year = "2007",

month = sep,

language = "German",

volume = "60",

pages = "565--574",

journal = "Gummi, Fasern, Kunststoffe",

issn = "0176-1625",

publisher = "Dr. Gupta Verlag",

}

TY - GEN

T1 - Wechselwirkung von Silanen bei mit Dihydroxid Vulkanisiertem Fluorelastomer

AU - Sands, M. B.

AU - Subramanian, V.

AU - Mao, G.

PY - 2007/9

Y1 - 2007/9

N2 - The reactivity of aminosilane and vinylsilane with a dihydroxy (Bisphenol AF) crosslinkable fluoroelastomer containing only vinylidene fluoride (VF 2) and hexafluoropropylene (HFP) was monitored using Differential Scanning Calorimetry (DSC) and X-ray Photoelectron Spectroscopy (XPS). The DSC results showed that the introduction of an aminosilane, or a combination of aminosilane and vinylsilane solutions, to the cure system of the fluoroelastomer resulted in a peak shift. This shift indicates that crosslinking in fluoroelastomer-silane system occurs at a lower temperature when aminosilane is present. Results also confirm that the organofunctional group on the silane reacts with the elastomer. XPS analysis of the silane-coated fluoroelastomer heated at 120°C, 160°C and 200°C reveals that dehydrofluorination of the polymer is one of the steps in the reaction. It is our hypothesis that the amine group on the aminosilane is a contributor to the dehydrofluorination of the fluoroelastomer.

AB - The reactivity of aminosilane and vinylsilane with a dihydroxy (Bisphenol AF) crosslinkable fluoroelastomer containing only vinylidene fluoride (VF 2) and hexafluoropropylene (HFP) was monitored using Differential Scanning Calorimetry (DSC) and X-ray Photoelectron Spectroscopy (XPS). The DSC results showed that the introduction of an aminosilane, or a combination of aminosilane and vinylsilane solutions, to the cure system of the fluoroelastomer resulted in a peak shift. This shift indicates that crosslinking in fluoroelastomer-silane system occurs at a lower temperature when aminosilane is present. Results also confirm that the organofunctional group on the silane reacts with the elastomer. XPS analysis of the silane-coated fluoroelastomer heated at 120°C, 160°C and 200°C reveals that dehydrofluorination of the polymer is one of the steps in the reaction. It is our hypothesis that the amine group on the aminosilane is a contributor to the dehydrofluorination of the fluoroelastomer.

UR - https://www.scopus.com/pages/publications/34548770615

M3 - Article

AN - SCOPUS:34548770615

SN - 0176-1625

VL - 60

SP - 565

EP - 574

JO - Gummi, Fasern, Kunststoffe

JF - Gummi, Fasern, Kunststoffe

ER -

Wechselwirkung von Silanen bei mit Dihydroxid Vulkanisiertem Fluorelastomer

Abstract

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