Syntheses and characterization of novel P/Si polysilsesquioxanes/epoxy nanocomposites

Hybrid Nanocomposites Based on Epoxy/silsesquioxanes Matrices Reinforced with Multi-walled Carbon Nanotubes

“…On the other hand, the incorporation of 0.25 wt% MWCNT to the neat LY nanocomposite (LY-CNT) caused a decrease around 5 °C in T d5 value and no significant change was observed to T d30 value. The T s value for DGEBA epoxy resin is in agreement to the reported values in literature 8 for similar DGEBA epoxy resin in terms of eq g -1 , however, in the present work, a slight increase of this parameter was observed, contrary to other reported works.…”

“…Furthermore, a decrease in the T g value with the incorporation of a random 5,7,8,29 or organized polysilsesquioxane structures 2,30,31 in epoxy matrix have been reported in literature. On the other hand, in our previous work 13 , the incorporation of the APTES/PTES copolysilsesquioxane provided improvement on T g up to 13 °C in relation to neat LY matrix.…”

“…Silsesquioxanes are typical organic-inorganic materials and can be incorporated into almost any kind of thermoplastic or thermosetting polymer to improve their properties 4 . Epoxy/silsesquioxane hybrids present improvements in thermal stability 5 , dielectric properties 6 , corrosion resistance 7 , and mechanical properties 8 , as well as reduced flammability 9 , in comparison with neat epoxy resin. In this context, increases in glass transition temperature (T g ) with chemical modifications of epoxy matrixes by random 10 or organized 11 structures with polysilsesquioxanes are scarcely reported.…”

Studies on Biocide Free and Biocide Loaded Zeolite Hybrid Polymer Coatings on Zinc Phosphated Mild Steel for the Protection of Ships Hulls from Biofouling and Corrosion

“…A similar procedure has been adopted for biocide free coatings. [12,14] Biocide loaded nano-zeolite containing epoxy resin was mixed with a calculated quantity of 5% flow control agent (urea formaldehyde) at 30°C for 15 min with constant stirring. After complete dissolution, a stoichiometric amount of the curing agent Aradur 140 (polyamidoimidazoline) was added and stirring was continued at 30°C to get a homogenous mixture.…”

“…Even though numerous paints and coating systems based on epoxy resins are available for fouling and corrosion protection, they are not satisfactory in field applications, where high fouling and corrosion resistance are required [9][10][11][12][13][14]. The designed biocide loaded epoxy coating composition paints of the present study may be unique for the marine substrate in preventing corrosion and fouling together and the results are discussed herein.…”