Specific Attraction at the Carboxyl Terminus of Fatty Acid/Oxidized Aluminum Interface for the Sizing Appearance of Fiber-network Materials

Shingo Yokota, Kana Matsuyama, Hiroki Yamamoto, Takuya Kitaoka, Hiroyuki Wariishi

Research output: Contribution to journalArticle

Abstract

The attractive force acting at a carboxyl group of a fatty acid/oxidized aluminum interface was precisely determined by atomic force microscopy (AFM). The correlation of the attractive force with the sizing behavior of paper sheets sized by a fatty acid-aluminum sulfate (alum) system was investigated. The surfaces of gold-coated AFM probes were modified with alkylthiol terminating methyl or carboxyl groups through self-assembling chemisorption. Pure cellulose film and oxidized aluminum plate were used as model substrates of cellulosic pulp fibers and aluminum components, respectively, in the sized paper sheet. A strong attractive force was detected at a carboxyl-terminated AFM probe/aluminum oxide interface both in air and water, while very weak interaction was found at the other pairs of probe/ substrates. In the fatty acid-alum systems, it was observed that such a combination was indispensable for good sizing appearance of not only organic pulp fiber sheet, but also inorganic glass filter. Consequently, the specific attractive interaction between carboxyl termini of acid sizing agents and oxidized aluminum components in the alum-treated fiber matrix should play a significant role in the water-repellent properties of porous fiber-network materials.
Original languageEnglish
Pages (from-to)332-337
Number of pages6
JournalSen'i Gakkaishi
Volume65
Issue number12
DOIs
Publication statusPublished - 2009

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Aluminum
Fatty acids
Fatty Acids
Atomic force microscopy
Fibers
Pulp
Cellulose films
Water
Aluminum Oxide
Substrates
Chemisorption
Gold
Glass
Acids
Air
aluminum sulfate
Oxides
Sulfates

Cite this

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title = "Specific Attraction at the Carboxyl Terminus of Fatty Acid/Oxidized Aluminum Interface for the Sizing Appearance of Fiber-network Materials",
abstract = "The attractive force acting at a carboxyl group of a fatty acid/oxidized aluminum interface was precisely determined by atomic force microscopy (AFM). The correlation of the attractive force with the sizing behavior of paper sheets sized by a fatty acid-aluminum sulfate (alum) system was investigated. The surfaces of gold-coated AFM probes were modified with alkylthiol terminating methyl or carboxyl groups through self-assembling chemisorption. Pure cellulose film and oxidized aluminum plate were used as model substrates of cellulosic pulp fibers and aluminum components, respectively, in the sized paper sheet. A strong attractive force was detected at a carboxyl-terminated AFM probe/aluminum oxide interface both in air and water, while very weak interaction was found at the other pairs of probe/ substrates. In the fatty acid-alum systems, it was observed that such a combination was indispensable for good sizing appearance of not only organic pulp fiber sheet, but also inorganic glass filter. Consequently, the specific attractive interaction between carboxyl termini of acid sizing agents and oxidized aluminum components in the alum-treated fiber matrix should play a significant role in the water-repellent properties of porous fiber-network materials.",
author = "Shingo Yokota and Kana Matsuyama and Hiroki Yamamoto and Takuya Kitaoka and Hiroyuki Wariishi",
year = "2009",
doi = "10.2115/fiber.65.332",
language = "English",
volume = "65",
pages = "332--337",
journal = "Sen'i Gakkaishi",
issn = "0037-9875",
publisher = "The Society of Fiber Science and Technology, Japan",
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TY - JOUR

T1 - Specific Attraction at the Carboxyl Terminus of Fatty Acid/Oxidized Aluminum Interface for the Sizing Appearance of Fiber-network Materials

AU - Yokota, Shingo

AU - Matsuyama, Kana

AU - Yamamoto, Hiroki

AU - Kitaoka, Takuya

AU - Wariishi, Hiroyuki

PY - 2009

Y1 - 2009

N2 - The attractive force acting at a carboxyl group of a fatty acid/oxidized aluminum interface was precisely determined by atomic force microscopy (AFM). The correlation of the attractive force with the sizing behavior of paper sheets sized by a fatty acid-aluminum sulfate (alum) system was investigated. The surfaces of gold-coated AFM probes were modified with alkylthiol terminating methyl or carboxyl groups through self-assembling chemisorption. Pure cellulose film and oxidized aluminum plate were used as model substrates of cellulosic pulp fibers and aluminum components, respectively, in the sized paper sheet. A strong attractive force was detected at a carboxyl-terminated AFM probe/aluminum oxide interface both in air and water, while very weak interaction was found at the other pairs of probe/ substrates. In the fatty acid-alum systems, it was observed that such a combination was indispensable for good sizing appearance of not only organic pulp fiber sheet, but also inorganic glass filter. Consequently, the specific attractive interaction between carboxyl termini of acid sizing agents and oxidized aluminum components in the alum-treated fiber matrix should play a significant role in the water-repellent properties of porous fiber-network materials.

AB - The attractive force acting at a carboxyl group of a fatty acid/oxidized aluminum interface was precisely determined by atomic force microscopy (AFM). The correlation of the attractive force with the sizing behavior of paper sheets sized by a fatty acid-aluminum sulfate (alum) system was investigated. The surfaces of gold-coated AFM probes were modified with alkylthiol terminating methyl or carboxyl groups through self-assembling chemisorption. Pure cellulose film and oxidized aluminum plate were used as model substrates of cellulosic pulp fibers and aluminum components, respectively, in the sized paper sheet. A strong attractive force was detected at a carboxyl-terminated AFM probe/aluminum oxide interface both in air and water, while very weak interaction was found at the other pairs of probe/ substrates. In the fatty acid-alum systems, it was observed that such a combination was indispensable for good sizing appearance of not only organic pulp fiber sheet, but also inorganic glass filter. Consequently, the specific attractive interaction between carboxyl termini of acid sizing agents and oxidized aluminum components in the alum-treated fiber matrix should play a significant role in the water-repellent properties of porous fiber-network materials.

U2 - 10.2115/fiber.65.332

DO - 10.2115/fiber.65.332

M3 - Article

VL - 65

SP - 332

EP - 337

JO - Sen'i Gakkaishi

JF - Sen'i Gakkaishi

SN - 0037-9875

IS - 12

ER -