Infrared spectroscopy of carbohydrates :

Tipson, R. Stuart

doi:10.6028/nbs.mono.110

Cited by 54 publications

(37 citation statements)

References 52 publications

(115 reference statements)

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“…This vibration frequency is attributed to C = O group of the carbonyl or carboxyl structure. 18 The disappearance of this particular band/peak in the alkali-treated fiber indicates the removal of lignin, waxes and oils on the external surface of the fibrils. It also depolymerizes cellulose …”

Section: Mechanical Propertiesmentioning

confidence: 99%

Plasma-treated abaca fabric/unsaturated polyester composite fabricated by vacuum-assisted resin transfer molding

Paglicawan

Kim

Basilia

et al. 2014

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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To improve the adhesion and wetting between the abaca fibers and matrix, the surface of abaca fabric was modified using plasma polymerization. Different plasma exposure times were conducted to determine the effect of plasma treatment on the properties of the composites. A combination of plasma and other surface modification processes was also investigated to determine whether double treatments could further enhance the properties of these composites. Combined treatments involve plasma polymerization of the fabric after pretreatment with one of the following surface-modification reagents: a) γ -methacrylopropyltrimethylsilane, b) triethoxyvinylsilane, and c) 2% w/w NaOH (aq).The abaca fabric/unsaturated polyester composites were fabricated using the vacuumassisted resin transfer molding (VARTM) technique.SEM results showed that 10 to 20 seconds plasma treatment gave the right amount of surface roughness for maximum fiber and matrix adhesion leading to improved mechanical properties of the composites. Longer plasma treatment time and double treatment however resulted in composites with lower mechanical properties. Although the composite with alkali and plasma-treated fabric showed the lowest mechanical properties it exhibited the lowest water uptake in both distilled water and brine solution.

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Section: Mechanical Propertiesmentioning

confidence: 99%

Plasma-treated abaca fabric/unsaturated polyester composite fabricated by vacuum-assisted resin transfer molding

Paglicawan

Kim

Basilia

et al. 2014

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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“…1c,2c). This band was attributed to the oxidation reaction, followed by the formation of the carbonyl groups (aldehyde and acid groups) in the cellulose structure (Tipson 1968;Malek and Holme 2003). As shown in Figs.…”

Section: Resultsmentioning

confidence: 96%

Flame retardant properties of plasma pre-treated/diamond-like carbon (DLC) coated cotton fabrics

et al. 2015

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Textiles with superior anti-flammability properties combined with minimal environmental impact are extremely necessary to reduce fire-related issues. In this regard, diamond-like carbon (DLC) coatings on cotton fabrics may represent promising candidates as potential flame-retardant (FR) materials. Herein, superhydrophobic and fire-resistant cotton fabrics were fabricated through a two-step plasma strategy by alternately exposing substrates to H 2 and O 2 plasma pre-treatments and subsequent DLC deposition. Fourier transform-infrared spectroscopy analysis has revealed that different plasma pre-treatments can impose surface modifications on the chemical structure of cotton, especially in carboxylic and hydroxyl groups, leading to a radical alteration of surface roughness and of the crystalline cellulosic external structure. These changes deeply influenced the growth of DLC thin films and the surface properties of cotton fabric because of the combination of a hierarchical structure and surface chemistry as verified using field emission gun-scanning electron microscopy and water contact angle measurements. The effects of both specific gases used in the pretreatment step and duration of pre-treatment were analysed and compared using thermogravimetric analyses. The H 2 -pre-treated DLC cottons exhibited good potential as an FR material, showing improved thermal stability in respect to untreated cotton, as evidenced by increased ignition times. Moreover, vertical burning tests have demonstrated that DLCcotton systems exhibit enhanced flammability resistance.

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“…Previous electrochemical studies [47] show that these regular stepped structures can be used in electrodejsolution interface studies if the samples are prepared by flame annealing and cooling under proper experimental conditions. The two series of stepped surfaces considered here, which contain (1 1 1) terraces and monatomic steps with two different orientations, can be denoted as Pt(S)[n(1 1 1) · (1 1 1)] and Pt(S)[n(1 1 1) · (1 0 0)] or using the Miller index notation Pt(n, n, n À 2) and Pt(n + 1,n À 1, n À 1), respectively.…”

Section: Electrooxidation Of Xylitol On Platinum Stepped Surfacesmentioning

confidence: 99%

Electrooxidation of xylitol on platinum single crystal electrodes: A voltammetric and in situ FTIRS study

Matos

Proença

Lopes

et al. 2007

Journal of Electroanalytical Chemistry

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Infrared spectroscopy of carbohydrates :

Cited by 54 publications

References 52 publications

Plasma-treated abaca fabric/unsaturated polyester composite fabricated by vacuum-assisted resin transfer molding

Plasma-treated abaca fabric/unsaturated polyester composite fabricated by vacuum-assisted resin transfer molding

Flame retardant properties of plasma pre-treated/diamond-like carbon (DLC) coated cotton fabrics

Electrooxidation of xylitol on platinum single crystal electrodes: A voltammetric and in situ FTIRS study

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