Surface modification of okra bast fiber and its physico-chemical characteristics

Khan, G. M. Arifuzzaman; Shaheruzzaman, Md.; Rahman, Mizanur; Razzaque, Shumaila; Islam, Md. Sakinul; Alam, Md. Shamsul

doi:10.1007/s12221-009-0065-1

Cited by 93 publications

(24 citation statements)

References 11 publications

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“…b–d). The increase in the smoothness of the treated fibers surface can also be explained by the partial removal of lignin and hemicelluloses from these fibers . Slight defibrillation may be macroscopic evidence of the limited cleavage of cellulose detected for the AA and AA_EP‐treated BPFs by Raman spectroscopy.…”

Section: Resultsmentioning

confidence: 94%

Water uptake, chemical characterization, and tensile behavior of modified banana–plantain fiber and their polyester composites

Rodríguez

Orrego

2015

Polymer Composites

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Banana–plantain fibers (BPFs) were treated with acetic anhydride (AA), epichlorohydrin (EP), and an acetic anhydride–epichlorohydrin blend (AA_EP). Natural fiber–polyester composites (PCs) were fabricated using untreated and treated BPF by the hand lay‐up technique. Modified BPF Raman and Infrared spectroscopy (ATR‐FTIR) analysis revealed losses of lignin and hemicelluloses and new chemical bonds that confirmed the replacement of part of the raw fiber hydroxyl groups, which gave rise to a degree of hydrophobicity in the treated fibers. This change altered their water sorption isotherms, swelling behavior in water, impedance spectroscopy, and XRD analysis. Assays of water absorption and tensile resistance for untreated BPF (U) and modified BPF polyester composites demonstrated a remarkable reduction in water intake, whereas tensile strength was maintained (P < 0.05) for the modified BPF polyester composites. POLYM. COMPOS., 37:2960–2973, 2016. © 2015 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 94%

Water uptake, chemical characterization, and tensile behavior of modified banana–plantain fiber and their polyester composites

Rodríguez

Orrego

2015

Polymer Composites

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“…More reactive groups are exposed on the fiber surface by chemical treatment, which in turn gives better interface and enhanced mechanical properties of the composite [54]. Some chemical surface modification techniques include treatment with sodium chlorite [55], metha acrylate [56], isocyanate [57], silane treatment [58], acetylation [59, 60], mercerization [61–64], etherification [65, 66], enzymatic treatment [67–71], peroxide treatments [62], benzoylation [61], dicumyl peroxide treatment [57], plasma treatment [72–75], ozone treatments [76,77], and grafting [78–80]. The oxidation of polyolefin [81,82] has also been reported to improve the incompatibility between the surfaces of natural fiber and polymer matrix.…”

Section: Modification Of Natural Fibersmentioning

confidence: 99%

Hydrophobic treatment of natural fibers and their composites—A review

Ali

Shaker

Nawab

et al. 2016

Journal of Industrial Textiles

375

176

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There is a growing interest in the development of natural fiber-reinforced composites, most likely due to their wide availability, low cost, environment friendliness, and sustainability. The market size for natural fiber-reinforced composites is projected to reach $5.83 billion by 2019, with a compound annual growth rate of 12.3%. The composite materials reinforced with wood, cotton, jute, flax or other natural fibers fall under this category. Meanwhile, some major factors limiting the large scale production of natural fiber composites include the tendency of natural fiber to absorb water, degradation by microorganisms and sunlight and ultimately low strength and service life. This paper has focused to review the different natural fiber treatments used to reduce the moisture absorption and fiber degradation. The effect of these treatments on the mechanical properties of these composites has also been summarized.

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“…Then the fiber was washed with 0.05 M acetic acid and then with distilled water until it became neutral. The alkali treated fiber was stored after drying in oven at 80 °C for 6 h. The jute fiber (20 g) was bleached in 1 L of sodium chlorite (NaClO2, 7g.L −1 ) solution according to our previous study (Khan et al 2009). For acetylation, alkali-treated jute fiber was soaked in glacial acetic acid for 1 h at 30 °C.…”

Section: Preparation Of Jute Samplementioning

confidence: 99%

“…The bleached jute fiber was grafted by acrylonitrile monomer (50 wt.% of fiber) in the presence of K2S2O8 as initiator (1 wt.% of fiber), and FeSO4 as a catalyst. The reaction was carried out at 70 °C in a water bath for 90 min (Khan et al 2009). The bleached fiber was also immersed on toluene solution containing diphenyl methanediisocyanate.…”

Section: Preparation Of Jute Samplementioning

confidence: 99%

Effect of Chemical Treatments on the Physical Properties of Non-woven Jute/PLA Biocomposites

Khan¹,

Shaikh²,

Alam³

et al. 2015

BioResources

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Biocomposites based on poly(L-lactic acid) (PLA) and non-woven jute fabrics (NWJF) were fabricated by sandwiching non-woven jute mat between PLA sheets. First, composites were fabricated with various weight proportions of jute fabric (5, 10, 20, and 30 wt.%) with the PLA matrix, and the effect of fabric loading on their mechanical properties was investigated. Higher mechanical properties were found at 10 wt.% fabricloaded composite. The results show that the tensile, flexural, and impact strengths were increased by 61.7, 52.3, and 47.2%, respectively, as compared with neat PLA. In the second part, the jute fabrics were chemically treated with NaOH, NaClO2, acrylonitrile, acetic anhydride, KMnO4, diphenylmethane diisocyanate, and benzoyl chloride. The effect of chemical treatment on the mechanical and water absorption properties of NWJF/PLA biocomposites was studied. The mechanical properties of these biocomposites were found to be higher than those of untreated biocomposites. Among all the treatments, the combined alkalibenzoylated-treated fabric composite showed higher mechanical properties. The water absorption properties of these composites were found to be remarkably lower than those of untreated fibers. The interfacial adhesion between the fiber and the matrix was shown to increase with surface modification as revealed by SEM analysis.

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Surface modification of okra bast fiber and its physico-chemical characteristics

Cited by 93 publications

References 11 publications

Water uptake, chemical characterization, and tensile behavior of modified banana–plantain fiber and their polyester composites

Water uptake, chemical characterization, and tensile behavior of modified banana–plantain fiber and their polyester composites

Hydrophobic treatment of natural fibers and their composites—A review

Effect of Chemical Treatments on the Physical Properties of Non-woven Jute/PLA Biocomposites

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