Preparation and Characterization of Acrylic Resin/Hindered Phenolic Antioxidant (AO80)-modified Carbon Black Nanocomposite

Abstract

To improve the dispersion stability of carbon black (CB) in an acrylic resin coating, a hindered phenolic antioxidant (AO80) was chosen to modify the CB by a solid state method based on the blending of CB and AO80 in an internal mixer. The modified CB (m-CB) was directly introduced into the acrylic resin with 50% solid content in butyl acetate by ball milling without any other treatment. That the majority of the m-CB particles were nanosized in ethanol was proven by a particle size analyzer. Transmission electron microscopy (TEM) and field emission scanning electron microscope (FESEM) micrographs indicated that the m-CB particles were also dispersed in the acrylic resin as nanoscale particles. Compared with the unmodified CB, the modification of CB can decrease the viscosity of the acrylic resin/m-CB nanocomposite and improve its flow property. The adhesion and gloss of the acrylic resin/m-CB nanocomposite were also improved. More importantly, the UV shielding and stability of the acrylic resin/m-CB nanocomposite were enhanced.

Research Progress in Boron-Modified Phenolic Resin and Its Composites

“…Due to the similar solubility parameters, nitrile rubber has good compatibility with phenolic resin [90], and the nitrile group and double bond in nitrile rubber can react with the methylol group in BPF, so nitrile rubber can be used to improve the properties of BPF [91,92]. When the amount of nitrile rubber is 6.7 phr, the impact strength of the modified BPF reaches the maximum value (12.92 KJ•m −2 ), which is 92.8% higher than that of the BPF, and the curing peak temperature of the modified BPF decreases and the heat resistance (below 430 • C) is improved [92].…”