Preparation of hydrophobic nanosilica-filled polyacrylate hard coatings on plastic substrates

Chang, Cheng-Chi; Oyang, Tai-Yueh; Chen, Yu‐Chen; Hwang, Feng-His; Cheng, Liao‐Ping

doi:10.1007/s11998-013-9540-0

Cited by 20 publications

(12 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…FTIR analysis of a typical sol-gel process can be found in the literature. [17][18][19][20] Thermal analyses of the dye-adsorbed and dye-grafted silica Figure 2 demonstrates the DSC thermograms of DR1 and DSiO 2 with different dye contents. For the pristine DR1, a major crystal melting peak at 168°C is indicated (a small hump around 144°C is also observed, which may arise from impurities) with a large heat of fusion, DH = 87.4 J/g.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Thermal analyses of dye Disperse Red 1 grafted onto silica nanoparticles

et al. 2015

Self Cite

View full text Add to dashboard Cite

Dye-grafted silica nanoparticles (GSiO 2 ) were synthesized via a dual-step process involving, first, attachment of the organic dye Disperse Red 1 (DR1) to the coupling agent, 3-isocyanatopropyltriethoxysilane, by means of urethane bonds, and then grafting of the silylated-DR1 onto silica nanoparticles ($6 nm) prepared by hydrolysis and condensation of tetraethoxysilane in a sol-gel process. Dye-adsorbed silica nanoparticles (DSiO 2 ) were also prepared for comparison, for which DR1 was bound only physically to silica instead of covalent bonds. The thermal behaviors of the formed GSiO 2 and DSiO 2 were examined by means of differential scanning calorimetry and thermal gravimetric analysis. The results showed that both the particle size and silica content have significant effects on the thermal behaviors of the dye-adsorbed and dye-grafted silica. Moreover, crystalline DR1 lost significantly its crystallinity after being adsorbed on silica, and became virtually amorphous after being grafted onto silica. The formed particles were UV-cured with a multifunctional acrylic monomer to yield color coatings on glass substrates. UVvisible spectra indicated that brightness and color saturation of the coating comprising GSiO 2 could be maintained better than that comprising DSiO 2 after heat treatment at 280°C.

show abstract

Section: Resultsmentioning

confidence: 99%

“…The detailed preparation procedures can be found in our previous publications. [17][18][19][20][21] The dyegrafted silica (termed GSiO 2 ) was prepared by adding MR and additional HCl (aq) (pH 1.2) to the $6 nm silica sol. The condensation reaction between Si-OH or between Si-OH and Si-(OC 2 H 5 ), cf.…”

Section: Preparation Of Dye-grafted Silica Nanoparticlesmentioning

confidence: 99%

Thermal analyses of dye Disperse Red 1 grafted onto silica nanoparticles

et al. 2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…In addition to protective purposes, hard coatings may be functionalized to impart specific properties. 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° .…”

Section: Introductionmentioning

confidence: 99%

“…Hard transparent coatings have vast applications in optical devices, such as lenses, mobile phones, touch panels, waveguides etc., for which high scratch resistance and high transparency over a wide wavelength range are demanded. 1,2 In addition to protective purposes, hard coatings may be functionalized to impart specific properties. For example, an easy-to-clean property, which is defined as a water contact angle (WCA) higher than 90 ∘ , is frequently desired.…”

Section: Introductionmentioning

confidence: 99%

“…For example, an easy-to-clean property, which is defined as a water contact angle (WCA) higher than 90 ∘ , is frequently desired. 1 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 ∘ . 3,4 On the introduction of well-designed roughness to the low surface energy surface, the WCA can reach higher than 150 ∘ .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Preparation of zirconia loaded poly(acrylate) antistatic hard coatings on PMMA substrates

Chang

Hsieh

Huang

et al. 2015

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

Zirconia (ZrO2) nanoparticles were synthesized by hydrolysis and condensation of zirconium‐n‐propoxide (ZNP) in 1‐propanol at the presence of methacrylic acid (MA), serving as a chelating agent for ZNP. The formed nanoparticles were chemically modified by the UV‐curable coupling agent, 3‐(trimethoxysilyl)propyl methacrylate (MSMA). The modified particles were then crosslinked with the hexa‐functional monomer, dipentaerythritol hexaacrylate (DPHA), to produce transparent antistatic hard coatings on poly(methyl methacrylate) (PMMA) substrates. Sizes of the modified particles, as determined by the dynamic light scattering technique, fell over a small range of 2–20 nm. Chemical analyses of the particles and the coatings were performed using FTIR and/or solid 29SiNMR spectroscopy. Surface resistivities of the coatings were measured, and the results indicated that with inclusion of 10 wt % modified zirconia, surface resistivity of ∼109 Ω/sq could be achieved, which amounted to ∼6 order magnitude lower than that of the particle‐free polymeric binder. Furthermore, this antistatic coating was very hard with pencil hardness of 8–9H, and attached perfectly to the PMMA substrate according to the peel test. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42411.

show abstract

Preparation of hydrophobic nanosilica-filled polyacrylate hard coatings on plastic substrates

Cited by 20 publications

References 25 publications

Thermal analyses of dye Disperse Red 1 grafted onto silica nanoparticles

Thermal analyses of dye Disperse Red 1 grafted onto silica nanoparticles

Hydrophobic, transparent and hard silicon oxynitride coating from perhydropolysilazane

Preparation of zirconia loaded poly(acrylate) antistatic hard coatings on PMMA substrates

Contact Info

Product

Resources

About