Durability of aminosilane-silica hybrid gas-barrier coatings on polymers

Singh, Brij Mohan; Bouchet, J.; Leterrier, Y.; Månson, J.-Å. E.; Rochat, G.; Fayet, Pierre

doi:10.1016/j.surfcoat.2007.05.036

Cited by 17 publications

(16 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Increasing the concentration beyond this value did not improve further the barrier properties. The present results being alike those obtained with thermally curable silanes suggests that similar reactions have occurred as detailed in [23,25]. At 2 wt.% concentration the silane reacted with the hydrated silica surface and formed a cross-linked polysiloxane layer with low oxygen permeability, resulting in the observed two-fold reduction of OTR.…”

Section: Resultssupporting

confidence: 87%

See 1 more Smart Citation

Supertough UV-curable silane/silica gas barrier coatings on polymers

Leterrier¹,

Singh²,

Bouchet³

et al. 2009

Surface and Coatings Technology

Self Cite

View full text Add to dashboard Cite

Ultra-thin (10-500 nm) photo-polymerized γ-methacryloxypropyltriethoxysilane (MPMS) and vinyltrimethoxysilane (VTS) layers applied to SiO 2 coatings on polyethylene terephthalate films improved the oxygen barrier performance of the oxide coated films by more than two-fold, and the coating strain to failure from 1.5% to beyond 5%, depending on the processing conditions. The oxygen transmission rate of composite films was measured under tensile strain. The chemical conversion of both MPMS and VTS with two different photoinitiators was studied by means of photo-calorimetry experiments, with attention paid to the influence of temperature, UV-light intensity and photoinitiator concentration. The conversion data were analyzed using an n th -order kinetic model, including an Arrhenius dependence of the temperature and a power-law dependence of the light intensity on the reaction rate. The improvement in mechanical integrity of the silane/silica barrier coating, with a toughness as high as 80 J/m 2 was found to be controlled by the conversion state of the silane.

show abstract

Section: Resultssupporting

confidence: 87%

“…In fact, the thickness of the coating can be checked precisely and kept constant for a long production time. A roll coating pilot line was built and used for the preparation of roll-to-roll samples as detailed in [25]. This machine was able to accommodate a 120 mm wide film and was operated at a maximum coating speed of 3 cm/s.…”

Section: Coating Methodsmentioning

confidence: 99%

Supertough UV-curable silane/silica gas barrier coatings on polymers

Leterrier¹,

Singh²,

Bouchet³

et al. 2009

Surface and Coatings Technology

Self Cite

View full text Add to dashboard Cite

show abstract

“…An important factor to influence the gas barrier property is the surface defects on the coated substrate [6-10]. As observed in the above SEM and AFM images ( Figure S1 and Figure 5), the sol-gel deposition was a crack-free film with ultralow surface roughness even at thick thickness, which endowed our method with better potential than the currently widely used plasma-enhanced deposition, because a large number of defects (e.g., cracks and pinholes) and poor adhesion [56][57][58][59] were often observed on the surface of coatings fabricated by the latter method. Another potential application was to construct SAM on polymer surface through the formation of siloxane bridging (Si−O−Si).…”

Section: Resultsmentioning

confidence: 75%

“…Accordingly, a variety of specially optimized methods have been designed to address the above-mentioned deposition problems on plastics, which mainly include organic/photochemical reactions [42][43][44][45][46][47][48][49][50][51][52][53][54], plasma-enhanced deposition [55][56][57][58][59], atomic layer deposition [30,51,52], vacuum UV-enhanced vapor deposition [46][47][48][49][50][51][52][53][54], liquid phase deposition [43,44,60] and sol-gel [61][62][63]. Among these methods, sol-gel stands out because it is a very useful and well-established method to fabricate high quality pure or hybrid films on various substrates without the need of complicated vacuum facilities and high temperature [61][62][63].…”

Section: Introductionmentioning

confidence: 99%

“…The fabrication of high quality SiO x films on polymeric substrates is especially important because this material could provide crucial properties in devices or serve as a base layer for further multilayer construction. Different from obvious defects observed in plasma-enhanced deposition [56][57][58][59], our strategy provides a simple but useful technique to prepare crack-free oxide patterns on flexible plastics with controllable thickness, low roughness and high bonding strength, and excludes the requirements of clean room and vacuum devices so as to fulfill low-cost and fast fabrication demands.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Interface-directed sol-gel: direct fabrication of the covalently attached ultraflat inorganic oxide pattern on functionalized plastics

Gan

Yang

2010

Sci. China Chem.

View full text Add to dashboard Cite

For plastic electronics and optics, the fabrication of smooth, transparent and stable crack-free inorganic oxide films (and patterning) on flexible polymeric substrates with strong bonding strength and controllable thickness from nanometers to micrometers is a key but still remains a challenge. Among versatile inorganic oxides, silica oxide film as SiO x is especially important because this semiconductor material could provide crucial properties in devices or serve as a base layer for further multilayer construction. In this paper, we describe a new interface-directed sol-gel method to fabricate flexible high quality silicon oxide film onto commodity plastics. The resulting crack-free silica film has strong covalent bonding with polymer substrates, homogeneous morphology with ultralow roughness, highly optical transparency, tunable thickness from nm to μm, and easy patterning ability. Such fabrication strategy relies on a novel photocatalytic oxidation reaction by photosensitive ammonium persulfate (APS), which is able to fabricate highly reactive hydroxyl monolayer surface on inert polymeric substrates. This kind of hydroxylated surface could serve as nucleation and growth sites to initiate surface sol-gel process. As a result, well-defined SiO x film deposition (gelation) occurs, and patterned hydroxylation regions could be easily utilized to induce the formation of patterned oxide film arrays. Our strategy also excludes the requirements of clean room and vacuum devices so as to fulfill low-cost and fast fabrication demands. Two application examples from such high quality SiO x layer onto plastics are given but should not be limited within these. One is that oxygen permeation rate of SiO x deposited polymer film decreases 25 times than pristine polymer substrate, which is good for the potential packaging materials. The other one is that silanization monolayer, for example, 3-aminopropyltriethoxysilane (APTES), could be successfully constructed onto silica layer through classical silanization reaction, which is applicable for many potential purposes, for instance, proteins could be accordingly immobilized onto plastic support with effective signal-to-background ratio. Moreover, we further demonstrate that this interface-directed sol-gel strategy is a general method which could be successfully extended to other high quality oxide film fabrication, e.g., TiO 2 . surface patterning, silicon oxide, sol-gel, polymer surface modification, functional coatings

show abstract

Mechanical Durability of Inorganic Films on Flexible Substrates

Leterrier¹

2023

Flexible Flat Panel Displays

View full text Add to dashboard Cite

Durability of aminosilane-silica hybrid gas-barrier coatings on polymers

Cited by 17 publications

References 29 publications

Supertough UV-curable silane/silica gas barrier coatings on polymers

Supertough UV-curable silane/silica gas barrier coatings on polymers

Interface-directed sol-gel: direct fabrication of the covalently attached ultraflat inorganic oxide pattern on functionalized plastics

Mechanical Durability of Inorganic Films on Flexible Substrates

Contact Info

Product

Resources

About