Surface modification of epoxy resin with telechelic silicone

Preparation and properties of polydimethylsiloxane-modified epoxy resins

“…[2][3][4] In the past years, a large variety of toughening agents have been used including ductile engineering thermoplastic polymers, such as bisphenol-Abased polycarbonate (PC), 5 polyetherimide, 6 reactive liquid rubber acrylonitrile-butadiene copolymers terminated with carboxyl or amine end groups (CTBN, ATBN), [7][8][9][10] and organosiloxane polymers. [11][12][13][14][15] Organosiloxane polymers have many unique characteristics such as very good thermal and thermooxidative stability, low glass transition temperature (Ϫ123°C), high moisture resistance, low stress resistance for reactive ion etching, and imparting nonflammability to the resins. 16 -19 They thus can toughen epoxy resins, and bring them excellent synthetic properties at the same time.…”

Effects of surface modification with hydroxyl terminated polydimethylsiloxane on the corrosion protection of polyurethane coating

“…Further, the diffusion coefficient of water into an organic coating can be calculated by Eq. (2), called ''the initial slope method'' [11][12] , (2) where, slope is the slope of ln C C -t 1/ 2 plot, and L is thickness of the coating. The capacitance of a coating at the frequency of 1 kHz was selected for the calculation of diffusion coefficient of water and water uptake (Eq.…”

“…Kasemura et al studied the surface modification of epoxy by blending aminopropyl terminated polydimethylsiloxane and examined the surface properties changed from hydrophilic to hydrophobic. [2][3] In our previous study, epoxy coatings modified with amino branched polydimethylsiloxane and amino terminated polydimethylsiloxane were designed to give a hydrophobic property on its surface by modifying it with two kinds of amino substituted polydimethylsiloxane, and then effects of the modification on the structure, surface hydrophobic tendency, water transport behavior and hence corrosion protectiveness of the modified epoxy coatings were examined. [4][5][6] From the examination, improvement of corrosion protectiveness was observed when epoxy coating is modified by amino substituted polydimethylsiloxane.…”

Tetrafunctional aliphatic epoxy I. Synthesis and characterization

“…4 The siloxane excellent properties, for example, good weatherlinkages are also used as impact modifiers for eping resistance, flexibility, heat resistance, outoxy resin. 5 standing surface property, and gas permeability. The conventional practice of introducing siloxane For the past decades, the toughening of epoxy resin has received much attention.…”