Study of Hydrophobic and Barrier Properties of Vinyltriethoxysilane Modified Poly (Vinyl Alcohol) / Poly (Acrylic Acid) Films 


Vol. 18,  No. 1, pp. 57-62, Mar.  2012


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  Abstract

Aqueous poly (vinyl alcohol) (PVA) solution was modified by using hydrophobic vinyltriethoxysilane (VTEOS) and then adding different amounts of poly (acrylic acid) (PAA) to the resulting solution. Thermal and mechanical properties, contact angle, water vapor transmission rate (MVTR) and oxygen gas transmission rate (O2TR) of the film samples fabricated by these solutions were investigated. The glass transition temperature (Tg) of the VTEOS-modified films was sightly increased and the value remained unchanged according to the amount of PAA. The tensile strength of the VTEOS-modified films was found to be 9.48~10.72 kg/mm2 which showed no significant difference compared with that of PVA. The film prepared with VTEOS-modified PVA/PAA (= 90/10), of which the swelling and solubility were measured to be 198% and 0%, respectively, showed improved water-resistance. The MVTR and O2TR for the PET film (thickness 50 μm) coated with VTEOS-modified PVA/PAA (= 90/10) film (thickness 2.5 μm) were measured to be 11.04 g/m2/day and 3.1 cc/m2/day, respectively.

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  Cite this article

[IEEE Style]

K. EJ, P. JH, P. IK, "Study of Hydrophobic and Barrier Properties of Vinyltriethoxysilane Modified Poly (Vinyl Alcohol) / Poly (Acrylic Acid) Films," Clean Technology, vol. 18, no. 1, pp. 57-62, 2012. DOI: .

[ACM Style]

Kim EJ, Park JH, and Paik IK. 2012. Study of Hydrophobic and Barrier Properties of Vinyltriethoxysilane Modified Poly (Vinyl Alcohol) / Poly (Acrylic Acid) Films. Clean Technology, 18, 1, (2012), 57-62. DOI: .

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한국연구재단 등재학술지