Title: Preparation and dispersion property of acrylic acid-butyl acrylate-acrylic amide copolymer dispersant
Abstract:The AA-BA-AM copolymer dispersant was synthesized with acrylic acid(AA),butyl acrylate(BA) and functional monomers acrylic amide(AM) as monomels.The effects of the amount of chain transfer agent,initi...The AA-BA-AM copolymer dispersant was synthesized with acrylic acid(AA),butyl acrylate(BA) and functional monomers acrylic amide(AM) as monomels.The effects of the amount of chain transfer agent,initiator and AM on the viscosity of copolymer dispersant(molecular weight) were studied.The influences of the amount of the chain transfer agent,AM,copolymer dispersant and coupling agents,the nano-TiO2 and the pH value on the nano-TiO2 dispersion system were studied.The experimental results showed that with the amount of AM increasing,the effect on dispersing of TiO2 was stronger,and the copolymer showed an excellent dispersing efficiency when the molar ratio of AM,BA and AA was 0.09 ∶ 1 ∶ 1.5,the mass fraction of initiator 1.2% on total monomers,4% of chain transfer agent on total monomers,and the viscosity was 150 mPa · s of copolymer dispersant.The optimal dispersion condition was:the amount of copolymer dispersant 16%,the amount of coupling agent 3%,the concentration of nano-TiO2 3%,the pH value 10.Read More
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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