A Study on Hydrophobic Surface Coatings with Abrasion Resistance Property

The aim of this study is to synthesize a hydrophobic surface coating with abrasion-resistant inorganic-organic hybrid materials. First, the copolymer of poly (MMA-co-MPTS)-colloid silica was synthesized by using the free radical polymerization of the methyl methacrylate (MMA) with γ-methacrylate propyltriethoxysilane (γ-MPTS). Next, the copolymer was hydrolyzed with tetraethoxylsilane (TEOS), fluoroalkylsilane (FAS), and colloid silica in the weak acid condition by a sol-gel process to obtain the surface coatings of hybrid material of poly (MMA-co-MPTS)-colloid silica. Finally, the effects of the colloid silica content on the optical properties, abrasion resistance, and morphology of the hybrid surface coatings were discussed in this study.

Keywords:

• Atomic force microscopy (AFM)
• Surface coatings
• Surface roughness
• X-ray photoelectron spectroscopy (XPS)

ACKNOWLEDGMENTS

The authors gratefully acknowledge the partial financial support from the National Science Council (NSC 94–2622-E-167–001-CC3).

Notes

C.A: contact angle(θ (⁰)).

S.E: surface energy (dy/cm ² ).

^a Glass substrate.

^b PMMA substrate.

^c PC substrate.

^a Ra (average roughness).

^b Rq (mean square surface roughness).

H = haze(%) (unabrasion).

ΔH(%) = H _b  − H _a (after 60 cycles test).

^a PMMA substrate.

^b PC substrate.

D% = dispersion rate (D)% at λ = 550 nm.

^a PMMA substrate.

^b PC substrate.