Effect of steam pretreatment of jute fiber on dimensional stability of jute composite

Das, Sekhar; Saha, Abir; Choudhury, Pradeep Kumar; Basak, Ratan Kumar; Mitra, B. C.; Todd, T.; Lang, Susan S.; Rowell, R.M.

doi:10.1002/(sici)1097-4628(20000613)76:11<1652::aid-app6>3.3.co;2-o

Cited by 28 publications

(32 citation statements)

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“…The curve shows a low‐temperature weight loss that can be attributed to a loss of water in the form of absorbed moisture or combined water. The weight loss (≈ 8.3%) was similar to the values reported for other lignocellulosic fibers, such as sponge gourd (9.4%)9 and jute (10.2%)18 but was higher than the value of 5.2% reported previously for piassava fibers 10. Because the fibers tested in this work came from the same lot of fibers tested earlier but their tests were separated by approximately 1 year, this difference could be related to normal water uptake by the stocked fibers.…”

Section: Resultssupporting

confidence: 85%

Effect of surface treatments on the thermal behavior and tensile strength of piassava (Attalea funifera) fibers

d’Almeida

Barreto

et al. 2010

J of Applied Polymer Sci

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Piassava (Attalea funifera) fibers subjected to several surface chemical treatments and as-received raw fibers were compared with respect to their thermal and tensile behaviors. The thermal degradation of the raw fibers was characterized by three main stages that corresponded to water release at low temperatures, decomposition of hemicellulose, and decomposition of a cellulose. Mercerization acted mainly on hemicellulose removal, and there was no change in the hydrophilic behavior of the fibers. The removal of hemicellulose split the fibers into microfibrils and favored the thermal decomposition of a cellulose. The same behavior was observed when the fibers were subjected to mercerization and acetylation. The fibers subjected to only acetylation showed thermal behavior similar to that of the raw fibers. With the acetylation treatment, a minor decrease in the hydrophilic character of the fibers was noted. Despite some differences in the thermal behavior, the tensile strengths of the raw and treated fibers were statistically equal. Complementary Fourier transform infrared and scanning electron microscopy analysis corroborated the thermogravimetric analysis/differential thermogravimetry results.

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Section: Resultssupporting

confidence: 85%

Effect of surface treatments on the thermal behavior and tensile strength of piassava (Attalea funifera) fibers

d’Almeida

Barreto

et al. 2010

J of Applied Polymer Sci

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“…Jute swells until the cell wall is saturated with solution. Jute cell wall polymers contain hydroxyl and other oxygen containing groups that attract water through hydrogen bonding 23 . In our case, we have used an aqueous acidic BaTiO 3 precursor solution that can easily interact with the hydroxyl group (OH) of jute cell wall either by hydrogen bonding (water) or by complex formation (barium, titanium ion).…”

Section: Resultsmentioning

confidence: 99%

Preparation of Nanocrystalline BaTiO₃ Powders, Fibers, and Thin Films From the Same Precursor Solution

Das

Pramanik

2010

Journal of the American Ceramic Society

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This paper discusses a modified sol-gel process, which can prepare nanocrystalline BaTiO 3 powders, fibers, and thin films. This process involved the preparation of stable precursor solutions containing the respective aqueous acetate solution of barium acetate and titanium isopropoxide where barium acetate and titanium isopropoxides were used as precursors and aqueous acetic acid was used as a solvent. The gel prepared using this precursor solution was calcined at 5501C/2 h to produce nanocrystalline BaTiO 3 with the corresponding average X-ray particle size of B15 nm. In case of thin film, precursor solution was directly deposited on silicon or glass substrates by spin coating. Nanocrystalline BaTiO 3 powders were dispersed into the precursor solution to produce a thick, crack-free particle film. We have also prepared BaTiO 3 fibers by soaking plant fiber (Jute) in the precursor solution. Heat treatment of soaked and dried plant fiber produces BaTiO 3 fibers. Particle, fiber, and film surfaces were characterized by transmission electron micrograph and scanning electron micrograph analysis. Altogether, this is a new direction for the development of multiple structures from the same precursor solution.

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“…For the CSBF, the onset decomposition temperatures were 235 to 237 °C and the decomposition peaks occurred at 376 to 390 °C, respectively. Decomposition of hemicelluloses in hemp and jute occurs at approximately 220 to 320 °C (Das et al 2000;Ouajai and Shanks 2005;Yang et al 2007;Moran et al 2008). The maximum thermal decomposition occurs at 268 °C for xylan, which was a representative component of hemicellulose in pyrolysis processes (Yang et al 2007), at 355 °C for commercial cellulose from Sigma-Aldrich Chemie GmbH (Yang et al 2007), and at 370 °C for standard microcrystalline cellulose (Jacquet et al 2011).…”

Section: Effect Of Steam Pressure On Mechanical Properties Of Csbfmentioning

confidence: 99%

Chemical-free Extraction of Cotton Stalk Bark Fibers by Steam Flash Explosion

Hou¹,

Sun²,

Zhang³

et al. 2014

BioResources

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Cotton stalk bark fibers (CSBF) were extracted by steam flash explosion, completed within 0.09 s, and the extracted fibers were compared with those obtained by conventional alkaline treatment. Results indicate that the optimum steam pressure was 2.5 MPa when steaming time was set to 2 min for extracting CSBF. Under the optimized conditions, the obtained CSBF had a cellulose content of 72%, length of 48 mm, fineness of 45 dtex, crystallinity index of 68, moisture regain of 8%, water retention of 98%, and tensile strength of 2.4 cN/dtex, which were similar to results obtained by conventional alkaline treatment. Compared with bark of cotton stalks, CSBF had lower moisture regain and water retention, and higher onset decomposition temperature. The results show that moderate steam flash explosion is a chemical-free, quick, and effective method for exploring the industrial applications of bark of cotton stalks as natural cellulose fibers.

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Effect of steam pretreatment of jute fiber on dimensional stability of jute composite

Cited by 28 publications

References 1 publication

Effect of surface treatments on the thermal behavior and tensile strength of piassava (Attalea funifera) fibers

Effect of surface treatments on the thermal behavior and tensile strength of piassava (Attalea funifera) fibers

Preparation of Nanocrystalline BaTiO₃ Powders, Fibers, and Thin Films From the Same Precursor Solution

Chemical-free Extraction of Cotton Stalk Bark Fibers by Steam Flash Explosion

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Effect of steam pretreatment of jute fiber on dimensional stability of jute composite

Cited by 28 publications

References 1 publication

Effect of surface treatments on the thermal behavior and tensile strength of piassava (Attalea funifera) fibers

Effect of surface treatments on the thermal behavior and tensile strength of piassava (Attalea funifera) fibers

Preparation of Nanocrystalline BaTiO3 Powders, Fibers, and Thin Films From the Same Precursor Solution

Chemical-free Extraction of Cotton Stalk Bark Fibers by Steam Flash Explosion

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Product

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Preparation of Nanocrystalline BaTiO₃ Powders, Fibers, and Thin Films From the Same Precursor Solution