Hydrophobic acrylic hard coating by surface segregation of hyper-branched polymers

Haraguchi, Masanobu; Hirai, Tomoyasu; Ozawa, Masaaki; Miyaji, Koji; Tanaka, Keiji

doi:10.1016/j.apsusc.2012.11.160

Cited by 16 publications

(5 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, an easy‐to‐clean property, which is defined as a water contact angle (WCA) higher than 90°, is frequently desired . The hydrophobic property of the surface has been well studied and can be easily achieved by deposition or coating of low surface energy materials such as fluorinated and siloxane based polymers on the substrate, which usually exhibits a WCA between 90° and 120° . On the introduction of well‐designed roughness to the low surface energy surface, the WCA can reach higher than 150° .…”

Section: Introductionmentioning

confidence: 99%

Hydrophobic, transparent and hard silicon oxynitride coating from perhydropolysilazane

Zhang

Shao

Luo

et al. 2015

Polymer International

View full text Add to dashboard Cite

Silicon oxynitride coatings on glass and polyethylene terephthalate (PET) film have been fabricated by thermal annealing of inorganic polymer perhydropolysilazane (PHPS) between 60 °C and 200 °C. The chemical structure, thermal behavior and structural evolution of PHPS were investigated. The coatings obtained on glass possess pencil hardness as high as 9H, high transparency above 90% in the visible wavelength range, good adhesion to the substrate and a hydrophobic property with water contact angle above 98°. The PHPS coated PET film has pencil hardness above 4H, water contact angle 102° and a high scratch resistance property with no obvious scratches after a 50 cycles scratch test under a load of 2 kg. All these data imply the great potential of PHPS as a hard coating for optical devices. © 2015 Society of Chemical Industry

show abstract

Section: Introductionmentioning

confidence: 99%

Hydrophobic, transparent and hard silicon oxynitride coating from perhydropolysilazane

Zhang

Shao

Luo

et al. 2015

Polymer International

View full text Add to dashboard Cite

show abstract

“…In this method, the interaction between chains and substrate surface can be altered just by adding a tiny amount of an additive, leading to a change in the characteristics of the interface. To this end, here, we have focused on a hyperbranched polymer (HBP) − as the interfacial-active agent. Since the chain dimension of HBP is smaller than that of the corresponding linear polymer, HBP can be segregated to the interface, because of the smaller entropic penalty. − That is, the adhesion strength would be somehow correlated to the extent of the interfacial segregation of HBP.…”

mentioning

confidence: 99%

“…To this end, here, we have focused on a hyperbranched polymer (HBP) − as the interfacial-active agent. Since the chain dimension of HBP is smaller than that of the corresponding linear polymer, HBP can be segregated to the interface, because of the smaller entropic penalty. − That is, the adhesion strength would be somehow correlated to the extent of the interfacial segregation of HBP.…”

mentioning

confidence: 99%

Adhesion Control of Elastomer Sheet on the Basis of Interfacial Segregation of Hyperbranched Polymer

et al. 2019

Self Cite

View full text Add to dashboard Cite

Adhesion of a model rubbery material, crosslinked poly(dimethylsiloxane) (PDMS), onto a solid surface was studied by sum-frequency generation spectroscopy and X-ray photoelectron spectroscopy. To do so, here, we have focused on the adhesive deposit and insoluble layer. The former and latter were defined as the residual amount on the substrate after the peeling and residual layer after washing with a good solvent, respectively. The peel strength of a PDMS sheet adhered onto a glass plate increased with the contact time. Both adhesive deposit and insoluble layer also exhibited comparable contact time dependence. Once a hyperbranched polymer (HBP), which was segregated to the adhesive interface, was incorporated into PDMS, the peel strength and adhesive deposit decreased, although the thickness of the insoluble layer remained almost unchanged. These results suggest that the formation of loosely adsorbed chains on the solid surface, which possess not only trains but also many loop portions and tail parts, plays an important role in the macroscopic adhesion behavior of the PDMS sheet and the interfacial segregation of HBP can prevent it.

show abstract

“…In the demonstration, an inkjet system, which could facilitate the evaluation of microscale penetration, was used. Regarding the ink, a solution of the hyperbranched polymer (FZ‐001, Nissan Chemical Corp.), [ 33,34 ] which was dissolved in cyclohexanone, was utilized. This hyperbranched polymer has a fluorine group incorporated in the molecular framework and exhibits low absorption in the visible region.…”

Section: Resultsmentioning

confidence: 99%

Embedding Optical Microcavities in Nanoporous SiO₂Film via Infill Inkjet Printing

Obata

Mikami

Yoshioka

et al. 2022

Advanced Photonics Research

View full text Add to dashboard Cite

The main practical method for fabricating fine optical structures involves mounting them on the surface of a substrate. Although there are other methods for fabricating structures inside materials, none involves the fabrication of optical structures, particularly resonator structures. Thus, a novel method, namely, infill printing in which a resonator structure is embedded in a nanoporous film, is demonstrated to fabricate optical structures. The highly transparent nanoporous film comprises nonspherical SiO2 nanoparticles with a diameter of ≈12 nm. The voids in the nanoporous film are interconnected, facilitating the penetration of polymers exhibiting a diameter of 2–3 nm. By filling the voids in the nanoporous film with a hyperbranched polymer via the printing method, the refractive index can be uniformly controlled, and the optical structures can be embedded. Using infill printing, this is the first time a microdisk resonator exhibiting a reasonable quality factor inside a nanoporous film is successfully demonstrated just as “writing on paper.”

show abstract

Hydrophobic acrylic hard coating by surface segregation of hyper-branched polymers

Cited by 16 publications

References 18 publications

Hydrophobic, transparent and hard silicon oxynitride coating from perhydropolysilazane

Hydrophobic, transparent and hard silicon oxynitride coating from perhydropolysilazane

Adhesion Control of Elastomer Sheet on the Basis of Interfacial Segregation of Hyperbranched Polymer

Embedding Optical Microcavities in Nanoporous SiO₂Film via Infill Inkjet Printing

Contact Info

Product

Resources

About

Hydrophobic acrylic hard coating by surface segregation of hyper-branched polymers

Cited by 16 publications

References 18 publications

Hydrophobic, transparent and hard silicon oxynitride coating from perhydropolysilazane

Hydrophobic, transparent and hard silicon oxynitride coating from perhydropolysilazane

Adhesion Control of Elastomer Sheet on the Basis of Interfacial Segregation of Hyperbranched Polymer

Embedding Optical Microcavities in Nanoporous SiO2Film via Infill Inkjet Printing

Contact Info

Product

Resources

About

Embedding Optical Microcavities in Nanoporous SiO₂Film via Infill Inkjet Printing