Estrutura foliar de curauá em diferentes intensidades de radiação fotossinteticamente ativa

Oliveira, Euzébio de; Lameira, O. A.; Sousa, Fernanda Ilkiu Borges de; Silva, Rolf Junior Ferreira

doi:10.1590/s0100-204x2008000200002

Cited by 12 publications

(1 citation statement)

References 6 publications

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“…Several papers were devoted to structural investigation of A . erectifolius fibers by SEM, but despite the good quality of the micrographs, they were taken at quite low magnification 8, 11, 12, 17. To date, curauá fiber has never been used as a support for functional coatings obtained by vapor phase deposition techniques like CVD or ALD.…”

Section: Introductionmentioning

confidence: 99%

Curauá Fiber Microimaging, Atomic Layer Deposition of Metal Oxide Films, and Obtaining of Nanowalled Microtubes

Grafova

Kemell

Lunz

et al. 2011

Chemical Vapor Deposition

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urauá (Ananas erectifolius) is a new lignocellulosic material possessing valuable properties. Scanning electron microscopy (SEM) studies of natural and delignified fibers reveal their dense structure and nanoveinlets of cellulose agglomerates. Thin Al 2 O 3 and Ta 2 O 5 coatings of various thicknesses (30 À 130 nm) are grown on the fiber surface by atomic layer deposition (ALD). Nanowalled microtubes of Al 2 O 3 and Ta 2 O 5 are prepared by annealing the coated fibers in an oxidative atmosphere to verify compactness, homogeneity, and continuity of the coatings obtained. The suitability of curauá fiber for ALD applications is shown. Both ALD coatings and the nanowalled microtubes replicate well the irregular fiber relief, they are resistant and homogeneous.

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Section: Introductionmentioning

confidence: 99%

Curauá Fiber Microimaging, Atomic Layer Deposition of Metal Oxide Films, and Obtaining of Nanowalled Microtubes

Grafova

Kemell

Lunz

et al. 2011

Chemical Vapor Deposition

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Vegetable Fibers

Aranguren

Marcovich

Reboredo

2016

Encyclopedia of Polymer Science and Technology

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Plant‐derived vegetable fibers are classified according to their source in plants as bast, leaf, and seed‐hair. The fibers in bast and leaf plants are integrated to the plant structure, providing strength and support. The main chemical component of vegetable fibers is cellulose, with varying amounts of lignin and hemicelluloses also usually present; thus these fibers are also referred to as cellulosic or lignocellulosic. The fibers are grown throughout the world. The principal bast fibers are flax, jute, and hemp, which are utilized primarily for fabrics (linen‐flax, hessian‐jute), bags, ropes, in newer biobased composites, and as a source of papermaking fibers. The primary leaf fibers are abaca and sisal, which have uses similar to bast fibers, except fabrics are not produced from the leaf fibers. Cotton, coir, and kapok are the main seed‐hair fibers, with cotton by far the most important commercial vegetable fiber. Bast fibers are obtained from the plant, after harvest, by retting. The leaf fibers are obtained by crushing and scraping, followed by washing. Vegetable fibers are generally graded according to color, luster, cleanliness, strength, fineness, and uniformity.In this article, general aspects on plant fiber structure, processing techniques, and fiber classification are introduced, together with some examples of the most utilized fibers. Fibers characteristics, their commercial applications, and recent developments in the use of these fibers are also discussed.

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