Characteristics of Wood Cellulose Fibers Treated with Periodate and Bisulfite

Hou, Qingxi; Liu, W.; Liu, Z. H.; Bai, Liangliang

doi:10.1021/ie0704750

Cited by 54 publications

(29 citation statements)

References 15 publications

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“…The dry strength then passed a maximum with increasing degree of oxidation. Both the dry and the wet strength of the sheets could be further increased by reacting the formed dialdehyde cellulose with bisulfite prior to sheet forming (Hou et al 2007). It was suggested that the increase in tensile strength of the sheets in this case was due to changes in the fibre surface morphology.…”

Section: Introductionmentioning

confidence: 89%

“…They found that both the dry and wet tensile strength increased with increasing degree of oxidation to a maximum and then decreased on further oxidation. Periodate oxidation has also recently been applied by Hou et al (2007), who also found that both dry and wet strength could be increased by periodate oxidation, but under their reaction conditions the strength was first decreased at low degrees of oxidation and then increased. The dry strength then passed a maximum with increasing degree of oxidation.…”

Section: Introductionmentioning

confidence: 99%

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The influence of periodate oxidation on the moisture sorptivity and dimensional stability of paper

2008

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The hygroexpansion of paper was significantly reduced, up to 28% lower amplitude of change when the paper was subjected to a change in relative humidity from 20 to 85% RH, by oxidation of the fibre wall. Never-dried bleached kraft fibres were oxidised with sodium periodate, which specifically oxidises the C2-C3 bond of 1,4-glucans so that the cellulose is partly converted into dialdehyde cellulose. Since both the dry and wet strength of laboratory sheets were significantly improved, the dry tensile strength increased from 24 kNm/kg up to 66 kNm/kg and the relative wet tensile strength increased from 1.5% up to 40%, it is suggested that the aldehydes form hemiacetal linkages within the fibre wall during the consolidation and drying of the sheets. The mechanical, hygroexpansive and moisture sorptive properties of the sheets made from the oxidised fibres were studied. The results showed that the main reason for the reduced hygroexpansion was a decrease in moisture sorptivity, i.e. when the sheets made of fibres with different degrees of cross-linking were subjected to the same change in relative humidity, the more cross-linked fibres showed a smaller change in moisture content. It was also shown that the hygroexpansion coefficient, i.e. the moisturenormalised dimensional change, was not significantly changed by the periodate oxidation, i.e. indicating that there are no improvement in dimensional stability if the paper is subjected to a specific amount of water.

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Section: Introductionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

The influence of periodate oxidation on the moisture sorptivity and dimensional stability of paper

2008

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“…The acid groups remain dissociated throughout the pH range where such fibers are likely to be used. Hou et al (2008) also showed that sulfonation improved absorbency.…”

Section: Sulfonationmentioning

confidence: 94%

Enhanced Absorbent Products Incorporating Cellulose and Its Derivatives: A Review

Hubbe¹,

Ayoub²,

Daystar³

et al. 2013

BioResources

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Cellulose and some cellulose derivatives can play vital roles in the enhancement of the performance of absorbent products. Cellulose itself, in the form of cellulosic fibers or nano-fibers, can provide structure, bulk, water-holding capacity, and channeling of fluids over a wide dimensional range. Likewise, cellulose derivatives such as carboxymethylcellulose (CMC) have been widely studied as components in superabsorbent polymer (SAP) formulations. The present review focuses on strategies and mechanisms in which inclusion of cellulose -in its various formscan enhance either the capacity or the rate of aqueous fluid absorption in various potential applications.

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“…The absorptions at 1638 and 1639 cm 21 of CF and DAC, respectively, were the water absorption by the samples. 23 The free aldehyde group stretching vibrations at 1732 cm 21 and the semiacetal vibrations at 872 cm 21 in DAC proved the successful selective oxidation reaction of CF. The peaks at 1377 and 1395 cm 21 were the plane rocking vibrations of ACH 2 A.…”

Section: Article Wileyonlinelibrarycom/appmentioning

confidence: 95%

Synthesis, characterization and properties of cellulose‐grafted glycine derivatives

Guo

Wang

Sun

et al. 2014

J of Applied Polymer Sci

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Novel Schiff base cellulose derivatives were successfully prepared by a bridge-coupling reaction from dialdehyde cellulose (DAC), which was obtained by the selective oxidation of sodium periodate to cotton fibers, in which the glycine (Gly) was bonded onto the DAC chains by a Schiff base reaction with p-nitrobenzaldehyde as a bridge. The structures of the graft copolymer (DAC-gGly) were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, solid-state NMR, and scanning electronic microscopy. The thermodynamic properties were analyzed by thermogravimetric analysis and differential scanning calorimetry, and the biodegradability was also tested by the microbial degradation and the active sludge method. The results indicate that Gly was connected to DAC by chemical bonding, which changed the thermal stability, and that DAC-g-Gly could be biodegraded significantly.

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Characteristics of Wood Cellulose Fibers Treated with Periodate and Bisulfite

Cited by 54 publications

References 15 publications

The influence of periodate oxidation on the moisture sorptivity and dimensional stability of paper

The influence of periodate oxidation on the moisture sorptivity and dimensional stability of paper

Enhanced Absorbent Products Incorporating Cellulose and Its Derivatives: A Review

Synthesis, characterization and properties of cellulose‐grafted glycine derivatives

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