Abstract: The internode segments of Giao Co Lam (Gynostemma pentaphyllum) sterilized with diluted solution of javel (50%) for 20 minutes reached to 73.33% sterile explants. In vitro cutting stem segments of Giao Co Lam cultured on MS medium supplemented with 1.0 mg/L BA and 0.1 mg/L NAA gave the highest shoot induction (6.8 shoots/ explant). The regenerated shoots cultured on MS ½ medium were suitable for growth of shoots with 5.2 cm in height and 4.0 leaves per plantlet. For root induction, the MS ½ medium supplemented with 0.25 mg/L IBA was appropriate and the root length could be in 7.6 cm in this medium. The rate of survival plantlets is 85% in garden.

• Publication Date: 26-Feb-2017
• DOI: 10.15224/978-1-63248-119-1-36
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Abstract: Easy to supply and cheap materials like agricultural wastes are now appearing as a candidate materials in the brake pads development with commercial production and environmental consideration. In this study, asbestos-free automotive brake pads produced from walnut shell dusts (WAS) and wollastonite (WOS) with phenolic-resin binder was evaluated. Two non-asbestos friction material samples containing walnut shell dusts and wollastonite jute fibers from biomass as biodegradable components were prepared, also including several from natural resources, such as, basalt fibers, zircon, barite, and vermiculite. The physical, mechanical properties of the brake pad were studied.

• Publication Date: 26-Feb-2017
• DOI: 10.15224/978-1-63248-119-1-37
• Views: 0
• Downloads: 0