نتایج جستجو برای: bast fibers

تعداد نتایج: 70811  

Journal: :Journal of composites science 2021

Hybridization of natural fiber with synthetic to reinforce polymer matrix composites is an effective way increasing fatigue strength substantial amount bio-based content. Flax the strongest type bast fiber, possessing excellent mechanical and damping properties. Fatigue properties flax hybridized carbon reinforced were studied. inter-ply hybrid flax-carbon composite compared intra-ply through t...

Journal: :Fibers 2023

The specific interest for the use of bark in materials, instead than energy recovery, is owed to circular economy considerations, since fibers are normally byproducts or even waste from other sectors, and therefore their would globally reduce amount refuse by replacing materials production composites. For purpose promoting application polymer composites, mainly under a geometry short random fib...

2009
Sunny M. Ogbomo Kent Chapman Charles Webber Robert Bledsoe Nandika A. D’Souza

Bast fibers from stems of kenaf (Hibiscus cannabinus, L.), a warm-season tropical herbaceous annual plant, were dispersed into poly-L-lactide (PLLA) matrix by melt-mixing followed by compression molding. Low fiber fractions (1–5%) were investigated. The composites showed a slight lowering of thermal stability when evaluated by thermogravimentric analysis. X-ray diffraction and differential scan...

2009
RONALD HOLSER Richard Russell

Biocomposites were prepared by the addition of flax fiber processing waste to glycerol and adipic acid mixtures. The processing waste consisted of fiber, cuticle, and shive fragments generated during the commercial cleaning of retted flax bast fibers. These waste materials were added at 1, 3, or 5 wt% levels to polymer formulations containing either 10% or 20% molar excess acid. The solids were...

2016
Ningyu Zhang Michael K. Deyholos

All of the post-embryonic, above-ground structures of seed plants are generated from the shoot apical meristem (SAM), which acts as a reservoir of stem cells. Members of the flax genus (Linum spp.) have been used historically as models for the study of SAMs (Esau, 1942). Cultivated flax (Linum usitatissimum) is grown in more than 50 countries for its seeds or its stem phloem (bast) fibers (Rubi...

Journal: :جنگل و فرآورده های چوب 0
مهران بابایی فارغ التحصیل کارشناسی ارشد، گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران یحیی همزه دانشیار، گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران مهدی جنوبی استادیار، گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران علیرضا عشوری دانشیار، تهران، سازمان پژوهش های علمی و صنعتی ایران، پژوهشکده فناوری های شیمیایی، تهران، ایران

cellulose nanofibers (cnf) which isolated from wood and non woody plants have attractive advantages comparing with the synthetic fibers, some of the most relevant being the following: low density, renewable sources, biodegradability, availability, and high specific mechanical properties. recently, the use of cnf in green materials, especially as reinforcement in different polymers has been incr...

Journal: :Journal of Korea Technical Association of The Pulp and Paper Industry 2012

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