نتایج جستجو برای: bast fibers

تعداد نتایج: 70811  

Journal: :Processes 2022

Non-wood biomass is particularly attractive as a cellulose source because of the lower lignin content. However, optimal extraction conditions are required content varies between plant sources. Further, use organic acids in place harsh mineral interest “greening” production process. This study sought to establish optimum parameters for microfibers (CMFs) from hemp (Cannabis sativa) biomass, usin...

MIR HABIBI A.R., ,

The continuity and thickness of the coating layer, are the most important factors in wetting properties and strength of carbon fibers. These factors are crucial in the quality of metal matrix composites made with carbon fibers. In this research the Polyacrylonitrail base carbon fibers have been nickel coated with 0.2, 0.5, 0.8 and 11 ,u in thickness, by the electroless method. The effect of the...

2007
Rachid Guerraoui Patrick Eugster Pascal Felber Karim Mazouni

For a couple of decades now, many projects have been devoted to the design and implementation of object based concurrent and distributed systems, mainly focusing on building support for object based concurrency control, remote object invocation and object migration [5]. Very few however have been devoted to building support for replication and object groups. This is actually not surprising as m...

Journal: :علوم و تکنولوژی پلیمر 0
حامد غفارزاده زارع احمد غضنفری مقدم حسن هاشمی پور رفسنجانی

during the past two decades the use of lignocellouse fibers in reinforcing composites has attracted much research activities. in the present work, date palm fiber was used for production of composites compatible withliving environment. the fibers were pre-treated chemically to remove impurities. in order to verify and compare the effectiveness of the pretreatment methods, lignin, ash, moisture ...

2008
Wei-ming Wang Zai-sheng Cai Jian-yong Yu

Degumming of pre-chlorite treated jute fiber was studied in this paper. The effects of sodium hydroxide concentration, treatment time, temperature, sodium silicate concentration, fiber-to-liquor ratio, penetrating agent TF-107B concentration and degumming agent TF-125A concentration were the process conditions examined. With respect to gum decomposition, fineness and mechanical properties, sodi...

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