The Effect of Solvent and Fiber Treatment on the Deposition of Organic Silane Solutions Using THF and Acetone

Watson, Hazel; Kaunisto, Marika; Gustafsson, Johanna; Päivärinta, Juha

doi:10.1006/jcis.2001.7693

Cited by 8 publications

(20 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This implied that the aluminium was associated in some unde ned manner with the amino function of°-APT(M /E)S [32]. Our results also indicate a close relationship between the aluminium removed from the glass surface and the deposition characteristics of a ureidosilane [5,7,8].…”

Section: Introductionsupporting

confidence: 55%

“…A large part of the work in the articles reviewed here has used dried organic solvents as carrier media [1,[6][7][8]. It has been reported that anhydrous solvents prevent, or at least limit, the chemisorption of silane onto a silicon wafer [24].…”

Section: Introductionmentioning

confidence: 98%

“…The reduced dynamic contact angle may also have been due to the removal of surface contamination [33]. The cold water plasma treatment of the E-glass bres appeared to dissolve aluminium into the water layer adsorbed onto the E-glass surface [7,28,31]. Below pH 4, the acidic Al 3C species could be expected to be present at the surface [38].…”

Section: Introductionmentioning

confidence: 99%

“…The effect of aluminium and calcium, in particular, on the deposition behaviour of the silane was determined using ESCA and zeta potential measurements [1,2,7].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Ureidosilanes on E-glass fibres: deposition and surface characteristics

Watson¹,

Kaunisto²,

Rosenholm³

2002

Journal of Adhesion Science and Technology

Self Cite

View full text Add to dashboard Cite

The behaviour of methoxy-and ethoxy-ureidosilanes deposited onto E-glass bres from both organic and aqueous solutions is reviewed.°-Ureidopropyltri(m)ethoxysilanes are used as coupling agents for paints to metal surfaces, but they have not found much use as coupling agents for E-glass bres. On metal surfaces, the silane is deposited with the ureido-functional group outermost, available for reaction with a paint / polymer matrix. On E-glass surfaces, however, unless speci c conditions are employed, ureidosilanes tend to deposit with a highly cross-linked siloxane surface. The silanol groups condense not only with silanols of adjacent silanes and the E-glass surface, but also with aluminium hydroxides leached from the E-glass surface. This forms a highly cross-linked aluminosiloxane outer layer. The aluminosiloxane forms at all pHs between 4 and 10, and also when a range of organic deposition solvents is used. 29 Si-NMR results are presented which illustrate the high level of condensation; silane to silicate binding via the amino group was not detected. A small proportion of Si O Si (silane-glass) bonds was inferred, indicating that a small number of sparsely distributed Si O Si links bound the silane to the surface. Electrokinetic analysis of the surfaces con rmed patchy deposition with a siloxane outer surface. Using AFM and ab initio calculations, it was estimated that the patchwise deposition of the silane was in the form of bilayers (or multiples of bilayers). The bilayer structure consisted of siloxane outer layers, with the inner ureido layers forming hydrogen bonds. A graphical t using the mole and volume fractions of silane and organic solvents con rmed the various types of siloxane surfaces as deposited from different organic solvents. Chlorinated solvents tended to produce a ureido outer surface, which was condensed, but solventswollen; deposition from alcohol and acetone resulted in a siloxane surface. Toluene and THF both produced minimally condensed ureido surfaces, which were easily removed by washing with methylene chloride.

show abstract

Section: Introductionsupporting

confidence: 55%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

“…The effect of aluminium and calcium, in particular, on the deposition behaviour of the silane was determined using ESCA and zeta potential measurements [1,2,7].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ureidosilanes on E-glass fibres: deposition and surface characteristics

Watson¹,

Kaunisto²,

Rosenholm³

2002

Journal of Adhesion Science and Technology

Self Cite

View full text Add to dashboard Cite

show abstract

“…Aluminium from the E-glass fiber surface was detected (XPS) in the upper layers of this silane deposited from more concentrated organic solutions. We propose that the aluminum induced the formation of very stable hydrogen bonded "micelle-like" complexes with the ureido silane, which did not break down over the pH range of the deposition solutions, leading to a bilayer structure, with a siloxane outer surface and the aluminum condensed into the siloxane network (26,27).…”

Section: Silane A1160mentioning

confidence: 99%

Aqueous Amino Silane Modification of E-glass Surfaces

Watson

Norström

Torrkulla

et al. 2001

Journal of Colloid and Interface Science

Self Cite

View full text Add to dashboard Cite

A study of tribological and mechanical properties of PTFE composites filled with surface treated K₂Ti₆O₁₃ whisker

Shi

Feng

et al. 2011

J of Applied Polymer Sci

View full text Add to dashboard Cite

K 2 Ti 6 O 13 whisker was modified with n-octadecyltrichlorosilane (OTS), fluorosurfactant (FSK), and silane coupling agent (KH-550), respectively. The surface energy of K 2 Ti 6 O 13 whisker was calculated based on Van Oss-Chaudhury-Good function. Then the influence of surface modification on the tribological and mechanical properties of K 2 Ti 6 O 13 whisker filled polytetrafluoroethylene (PTFE) composites was studied. Surface energy calculation shows that the surface energy of OTS-treated K 2 Ti 6 O 13 whisker is only 29.0 mJ/m 2 , which is the closest to the value of pure PTFE. Among all samples, the PTFE composite filled with OTStreated K 2 Ti 6 O 13 whisker shows the best antiwear property, tensile strength, and impact strength, which is about 19 to 33%, 15 and 55% higher than that of untreated K 2 Ti 6 O 13 whisker filled PTFE, respectively.

show abstract

The Effect of Solvent and Fiber Treatment on the Deposition of Organic Silane Solutions Using THF and Acetone

Cited by 8 publications

References 32 publications

Ureidosilanes on E-glass fibres: deposition and surface characteristics

Ureidosilanes on E-glass fibres: deposition and surface characteristics

Aqueous Amino Silane Modification of E-glass Surfaces

A study of tribological and mechanical properties of PTFE composites filled with surface treated K₂Ti₆O₁₃ whisker

Contact Info

Product

Resources

About

The Effect of Solvent and Fiber Treatment on the Deposition of Organic Silane Solutions Using THF and Acetone

Cited by 8 publications

References 32 publications

Ureidosilanes on E-glass fibres: deposition and surface characteristics

Ureidosilanes on E-glass fibres: deposition and surface characteristics

Aqueous Amino Silane Modification of E-glass Surfaces

A study of tribological and mechanical properties of PTFE composites filled with surface treated K2Ti6O13 whisker

Contact Info

Product

Resources

About

A study of tribological and mechanical properties of PTFE composites filled with surface treated K₂Ti₆O₁₃ whisker