Hydrophobic Scratch Resistant UV-Cured Epoxy Coating

Abstract

A selective modification of the surface properties of UV-cured epoxy films was achieved, with an important enhancement of hydrophobicity and scratch resistance, by dispersion on the UV-curable formulations of fluorinated functionalized silica particles. The photopolymeriza- tion process was investigated and the films were fully characterized. Contact angle measurements with water on UV-cured films showed a linear increase of the contact angle of cross-linked films by increasing the functionalized SiO2 content in the photocurable formulation. Also, a consistent and linear improvement of penetration resistance was noted in terms of penetration depth by increasing the fluorinated functionalized silica content

New UV‐Curable Anticorrosion Coatings from Vegetable Oils

“…The water contact angle values range from 75° to 81° which are slightly higher than the one obtained with UV-Cured petroleum-based resins such as 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexane carboxylate (70°). [48] This can be attributed to the presence in the monomer structure of long hydrophobic aliphatic chains. The diiodomethane contact angle was also measured in order to evaluate the surface tension of the coatings by using WORK method.…”

Designing Microparticle-Impregnated Polyelectrolyte Composite: The Combination of ATRP, Fast Azidation, and Click Reaction Using a Single-Catalyst, Single-Pot Strategy

“…In ultrafiltration, fouling of a membrane can be restricted by altering its net charge via the incorporation of polyelectrolyte-modified particles [7]. Properties like the hydrophilicity/hydrophobicity [8,9], optical behavior [10], mechanical strength [11], conductivity [12], etc., of neat polymer networks can be controlled using particles as fillers. Often, these particles are spread over the polymeric network to design various composite materials.…”

Impact of nanoparticle surface modification on the mechanical properties of polystyrene-based nanocomposites

“…[1][2][3][4][5][6][7] Typically, inorganic nanoparticles are dispersed in a polymeric resin which is then moulded and cured to form a nanocomposite (NC). There are many possible advantages over the neat polymer, from an enhancement of electrical [8][9][10][11] and thermal [12][13][14] conductivity, control of hydrophobicity, [15][16][17][18][19] tailored optical properties [20][21][22] to a great improvement of mechanical properties [23][24][25][26] like scratch resistance 27,28 or Young's modulus. 26,29 In general, to achieve cost and weight reduction, smaller quantities and a homogenous distribution of the nanoller are the key factors for an effective mechanical reinforcement.…”