Wet-end interaction of celluloseaffinity molecules as retention promoter

研究成果: ジャーナルへの寄稿Conference article

抄録

Wet-end application of direct dye and cello-oligo-saccharide with a high affinity for cellulosic substrate was investigated with regard to retention behavior of polymer additives under various wet-end conditions. Either Direct Red 28 (DR28) or cellobiosylamine (CB) was covalently introduced into anionic polyacrylamide (A-PAM); called DR-A-PAM or CB-A-PAM, respectively. The DR-A-PAM added to paper furnish exhibited a high retention efficiency, resulting in the physical enhancement of paper sheets. Anionic trash showed nearly no interference with the DR-A-PAM functions, although Ca2+ ions remarkably reduced the additive retention. The CB-A-PAM also performed well both for its retention and the paper strength in a clean wet-end system. Surface plasmon resonance analysis provided useful information for cellulose-anchoring ability of DR28 and CB moieties. The DR28 was irreversibly adsorbed onto cellulosic substrate. On the other hand, cellobiose and A-PAM had no specific interaction with cellulose, although the CB-A-PAM was tightly adsorbed on the cellulose surface. It was presumed that multiple numbers of β-1, 4-glucan units in one CB-A-PAM molecule synergistically enhanced the affinity for cellulose. These cellulose anchors would perform as a retention promoter based on the novel wet-end interaction.

元の言語英語
ページ(範囲)293-296
ページ数4
ジャーナルAppita Annual Conference
3
出版物ステータス出版済み - 12 1 2005
イベント59th Appita Annual Conference and Exhibition, incorporating the 13th ISWFPC: International Symposium on Wood, Fibre and Pulping Chemistry - Auckland, ニュージ―ランド
継続期間: 5 16 20055 19 2005

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Polyacrylates
cellulose
Molecules
Cellulose
substrate
anchor
dye
polymer
Surface plasmon resonance
Substrates
ion
Anchors
Dyes
Ions
Polymers

All Science Journal Classification (ASJC) codes

  • Media Technology

これを引用

Wet-end interaction of celluloseaffinity molecules as retention promoter. / Ohta, Takefumi; Yokota, Shingo; Kitaoka, Takuya; Wariishi, Hiroyuki; Ona, Toshihiro.

:: Appita Annual Conference, 巻 3, 01.12.2005, p. 293-296.

研究成果: ジャーナルへの寄稿Conference article

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AU - Ohta, Takefumi

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AU - Kitaoka, Takuya

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AU - Ona, Toshihiro

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