Studies on adsorptive interaction between natural fiber and coupling agents

Singh, B.; Verma, Anchal; Gupta, M.

doi:10.1002/(sici)1097-4628(19981128)70:9<1847::aid-app24>3.3.co;2-g

Cited by 18 publications

(21 citation statements)

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“…FTIR spectra of untreated and treated banana fiber bundles are shown in Figure 1. Both stem and bunch fiber bundles present the typical vibration bands of the components of other vegetable fibers, such as fique21 or sisal,23 mainly corresponding to cellulose, hemicellulose, and lignin. Every band is very similar for both types of fiber bundles, indicating a close similarity on their chemical compositions.…”

Section: Resultsmentioning

confidence: 99%

“…Fiber modification may cause alterations on the physical and chemical characteristics of their structure, which includes variations on surface, chemical composition, and moisture uptake 21. The surface behavior of natural fibers can be analyzed by using different techniques, such as: wetting measurements for determination of contact angle by Wilhelmy method (DCA)21–24 or capillary technique by Washburn method25; photoelectron spectroscopy (XPS)26; and inverse gas chromatography (IGC) 27, 28. In this work, the dynamic contact angle determination by the Wilhelmy method, due to its accessibility for the fiber bundles evaluated, has been employed to analyze surface variations, in spite of studies developed by Barserg et al,22 who express controversy to the effective information submitted by this technique, due to the complex phenomena associated with fiber surface and probe liquid interaction.…”

Section: Introductionmentioning

confidence: 99%

“…In this work, the dynamic contact angle determination by the Wilhelmy method, due to its accessibility for the fiber bundles evaluated, has been employed to analyze surface variations, in spite of studies developed by Barserg et al,22 who express controversy to the effective information submitted by this technique, due to the complex phenomena associated with fiber surface and probe liquid interaction. However, the Wilhelmy method can be useful when the results obtained are essentially employed to compare variations on the hydrophilic behavior between treated and untreated fibers 21, 23, 24, 28…”

Section: Introductionmentioning

confidence: 99%

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Stem and bunch banana fibers from cultivation wastes: Effect of treatments on physico‐chemical behavior

Gañán

Cruz

Garbizu

et al. 2004

J of Applied Polymer Sci

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ABSTRACT:Much research related to the use of natural fibers in polymeric matrix composites has been developed. The presence of -OH groups in the chemical components of the natural fibers generates an important hydrophylic tendency that produces adhesion lacks with hydrophobic polymeric matrices. In this work natural fiber bundles mechanically extracted from both stem and bunch of cultivation banana wastes have been modified by both alkalization and silanization treatments. To evaluate the changes introduced by treatments on the chemical structure of fibers, Fouriertransform infrared spectrophotometry has been employed. The evaluation of advancing dynamic contact angles along with the determination of total surface free energy by using the Owens-Wendt method indicate that the treatments allow reduction of their hydrophilic tendency by alterations on the physicochemical characteristics of the fibers. This behavior is confirmed by the reduction of moisture uptake, analyzed by thermogravimetric analysis. Small differences on noncellulosic components of stem and bunch fiber bundles have been found.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Stem and bunch banana fibers from cultivation wastes: Effect of treatments on physico‐chemical behavior

Gañán

Cruz

Garbizu

et al. 2004

J of Applied Polymer Sci

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“…With silane treatment, it is possible that the lower moisture content of the fibers coupled with more efficient fiber‐matrix bonding is able to provide protection against biological decay. At present this is speculative and indicates the need for more research into the interaction of coupling agents with plant fibers, an area that is beginning to receive attention 16. With the titanate treatment, the protection which does occur is not so effective as with silane.…”

Section: Resultsmentioning

confidence: 99%

The effect of environmental exposure upon the mechanical properties of coir or oil palm fiber reinforced composites

Hill

Abdul

Khalil

2000

J. Appl. Polym. Sci.

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Polyester matrix composites reinforced using nonwoven coir or oil palm empty fruit bunch fiber mats were manufactured. Fibers were used unmodified, chemically modified by acetylation, or treated with silane or titanate coupling agents. Composite test pieces were exposed to decay fungi in unsterile soil for up to 12 months, along with samples made of unreinforced, or glass fiber reinforced, resin. Water exposure tests were also performed. The effect of such exposure on the mass loss, tensile and flexural properties of the samples was evaluated. Mechanical properties deteriorated as a result of exposure. However, acetylation of fibers, or treatment with silane coupling agent was found to afford a significant degree of protection. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 77: 1322–1330, 2000

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“…4–7 The interaction between natural fiber and resin matrix has also been studied. 8–10 The simultaneous incorporation of wood flour and glass mat in PP has been investigated to a lesser extent.…”

Section: Introductionmentioning

confidence: 99%

Some studies on mechanical properties of wood flour/continuous glass mat/polypropylene composite

Lin

Zhou

Dai

et al. 2002

J of Applied Polymer Sci

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ABSTRACT:The mechanical properties and the surface property of wood flour/continuous glass mat/polypropylene composites have been investigated. The suitability of wood flour as a filler for continuous glass mat-reinforced polypropylene has been tested using different mesh sizes (e.g., 20 and 40 mesh), as well as by varying the weight percentage of wood flour from 0%-30%. Moreover, different treatments such as coupling agent A-1100 and functionalized polypropylene grafting with maleic anhydride, and so forth, have also been used to improve the compatibility of wood flour and glass fiber with the polymer resin. In addition, the effects of the surface weight of glass mat and matrix resin have been studied. The extent of the improvement in mechanical properties depends on the wood flour content and size, the surface weight of the glass mat, the matrix resin, and the surface treatment of wood flour. After adding wood flour, the contact angle of distilled water on the composite surface decreases and the polar component of surface tension increases.

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Studies on adsorptive interaction between natural fiber and coupling agents

Cited by 18 publications

References 0 publications

Stem and bunch banana fibers from cultivation wastes: Effect of treatments on physico‐chemical behavior

Stem and bunch banana fibers from cultivation wastes: Effect of treatments on physico‐chemical behavior

The effect of environmental exposure upon the mechanical properties of coir or oil palm fiber reinforced composites

Some studies on mechanical properties of wood flour/continuous glass mat/polypropylene composite

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