The inhibition abilities of multifunctional polyelectrolytes for silica scale formation in cooling water systems: Role of the nonionic functional group

Ikuko Nishida, Yoshihiro Okaue, Takushi Yokoyama

研究成果: ジャーナルへの寄稿学術誌査読

11 被引用数 (Scopus)

抄録

The abilities of multifunctional polyelectrolytes to enhance aluminum hydroxide dispersion and inhibit silica scale formation were examined in a pilot cooling water system. The following multifunctional polyelectrolytes were studied: a terpolymer of acrylic acid (AA), 2-acrylamide-2-methyl propane sulfonic acid (SA) and N-vinylpyrrolidone (NVP) (P(AA/SA/NVP)), acrylic acid homopolymer (P(AA)) and a copolymer of AA and SA (P(AA/SA)). The order of inhibition ability was P(AA/SA/NVP)>P(AA/SA)>P(AA), and was consistent with that of the dispersing ability for aluminum hydroxide. Other terpolymers incorporating different nonionic monomers were also examined and factors affecting their inhibition abilities were investigated, based on interaction energies calculated by density functional theory. Based on the correlation between scale inhibition abilities and interaction energies, we elucidated that the effective nonionic monomer of terpolymer for silica scale inhibition had low affinity for aluminum hydroxide and high affinity for H2O and Si(OH)3O-. The affinities of nonionic monomer for aluminum hydroxide and H2O suggested that there was proper conformation of polyelectrolyte adsorbed for effectively dispersing aluminum hydroxide. Also, high affinity of nonionic monomer for Si(OH)3O- suggested that interacting Si(OH)3O- is an important role of inhibition of silica scale formation.

本文言語英語
ページ(範囲)110-116
ページ数7
ジャーナルJournal of Colloid And Interface Science
360
1
DOI
出版ステータス出版済み - 8月 1 2011

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 生体材料
  • 表面、皮膜および薄膜
  • コロイド化学および表面化学

フィンガープリント

「The inhibition abilities of multifunctional polyelectrolytes for silica scale formation in cooling water systems: Role of the nonionic functional group」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル