Endowing Carbon Black Pigment Particles with Primary Amino Groups

Abstract

A readily synthetic route to endow the surface of hydrophobic carbon black (CB) particles with primary amino groups has been developed. The adsorption of the water-borne polyelectrolyte copolymer poly(vinyl amine-co-vinyl amide) (PVAm) on CB was studied as function of pH and polyelectrolyte concentration. The amino-functionalization process of CB with PVAm strongly depends on pH. As shown by electrokinetic measurement as function of pH, the content of accessible primary amino groups on the surface of CB increases with increasing the OH- concentration. The alternative functionalization of the CB surface with an anionic polyelectrolyte is demonstrated for the adsorption of poly(ethylene-alt-maleic anhydride) (PEMSA). About 50 mg of PVAm can be adsorbed on 1.0 g of CB, which is sufficient to completely alter the surface net charge. The aim of the introduced functional amino groups is their ability to act as anchoring groups for subsequent surface reactions improving the CB's process ability, compatibility, and adhesion properties.

Aqueous poly(N-Vinylformamide-co-Vinylamine) as a suitable adhesion promoter for wood veneer/biopolyethylene composite materials

“…poly(vinyl amine) in combination with various starch samples, such as corn starch. According to previous studies (Voigt et al 2001;Piasta et al 2009;Seifert et al 2011), it is expected that the adsorption of PVFA-co-PVAm onto wood will have an effect on the surface polarity. It is assumed, that the adaption of the surface polarities improves the adhesion strength with polyolefins because the dispersion forces could operate effectively.…”

“…The adsorption of PVFA-co-PVAm onto cellulose (Geffroy et al 2000;Shulga et al 2003a,b;Miao et al 2007), silica (Voigt et al 2000(Voigt et al , 2001Spange et al 2004), carbon black (Piasta et al 2009), glass (Poptoshev et al 1999(Poptoshev et al , 2000, metal, and metal oxides have been studied extensively (Seifert et al 2011(Seifert et al , 2012. However, the adsorption behaviors of PVFA-co-PVAm onto wood-based substrates and their interactions on the manifold surface structure of wood have been barely investigated (Khabbaz et al 2008).…”

Modification of carbon black pigment: Cotton fabric colouring and anti‐bacterial finishing

“…[3][4][5] Carbon black (CB), with its strong covering power, good absorption and superior light refraction properties, is widely used as an inorganic pigment in the paint industry. 6,7 However, to date CB has not been applied in colouring cotton fibres without a fixing or an adhesive agent because of its aggregation state in the aqueous phase and lack of reactivity to cellulose, which results in poor levelness and fastness. 8 Various modification techniques have been developed to decrease particle size and to improve the overall dispersibility of CB pigment in the aqueous phase by grafting anionic hydrophilic groups onto the surface of CB pigments.…”

“…Carbon black (CB), with its strong covering power, good absorption and superior light refraction properties, is widely used as an inorganic pigment in the paint industry 6,7 . However, to date CB has not been applied in colouring cotton fibres without a fixing or an adhesive agent because of its aggregation state in the aqueous phase and lack of reactivity to cellulose, which results in poor levelness and fastness 8 …”

Reactive molecular dynamics simulation of the pyrolysis and combustion of benzene: ultrahigh temperature and oxygen-induced enhancement of initiation pathways and their effect on carbon black generation

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14] Carbon black (CB) is one of the most common products of the combustion and pyrolysis of hydrocarbons. 23 It is also a good candidate for thermal interface pastes, because of its excellent thermal conductivity. The world production of CB is $10 Mt per year.…”