UV-curable organic-inorganic hybrid film coatings based on epoxidized cyclohexene derivatized linseed oil

被引：59

作者：

Zou, KR ^{[1
]}

Soucek, MD ^{[1
]}

机构：

[1] Univ Akron, Dept Polymer Engn, Akron, OH 44325 USA

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2004年 / 205卷 / 15期

关键词：

cationic polymerization; coatings; nanocomposites; photopolymerization; polysiloxanes;

D O I：

10.1002/macp.200400115

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Organic-inorganic hybrid films based on epoxidized cyclohexene derivatized linseed oil (ECLO) and tetraethylorthosilicate (TEOS) oligomers were prepared via a UV-curing process. The kinetics of the hybrid materials were studied by photo-differential scanning calorimetry (DSC). In addition to the kinetics, the tensile properties, pencil hardness, pull-off adhesion, reverse impact resistance, solvent resistance and abrasion resistance of the hybrid coatings were evaluated. Both dynamic mechanical thermal analysis (DMTA) and thermogravimetric analysis (TGA) were used to investigate the viscoelastic and thermal properties of the hybrid films. The morphology of the hybrid film was characterized by atomic force microscopy (AFM). Based on the results from the aforementioned evaluation of the coatings, the hybrid films exhibited higher pencil hardness, tensile strength, tensile modulus, fracture toughness, abrasion resistance, cross-link density and thermal stability compared to the ECLO organic film. The Photo-DSC data showed that the photo-curing speed of the hybrid materials increased with TEOS oligomers content. It was postulated that the TEOS oligomers were reactive diluents.

引用

页码：2032 / 2039

页数：8

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