Cannabis indica fiber

SCHEME 15.1 A proposed mechanism for mercerization of Cannabis indica fibers [19]. 

FIGURE 15.11 Dielectric constant versus frequency for neat UPE and its composites reinforced with raw and mercerized Cannabis indica fibers. 

Singha AS, Rana AK. Effect of silane treatment on physicochemical properties of lignoceUulosic Cannabis indica fiber. J Appl Polym Sci 2012 124 2473. 

Singha AS, Rana AK. A study on benzoylation and graft copolymerization of lignocellu-losic Cannabis indica fiber. Polym Environ 2012 20 361. 

Hemp Fiber (Chanvre in French). The bast-fiber obtained from the plant Cannabis indica or C sativa, which is a perennial herb (Ref 1). The plant is native of western and central Asia, but has long been cultivated in Brazil and tropical Africa, and is now extensively cultivated in many countries. Its fiber is used for preparation of ropes and paper, but was also proposed by Trench (Ref 2), in 1877 to be nitrated to an explosive Refs 1) Daniel (1902), 773 2) Webster s 7th New Collegiate Diet (1969), 388... 

Cannabis indica Lamarck, classified by Lamarck in 1783, is a shorter plant that s more densely branched. Seldom over eight feet tall, it has short, brittle fibers and thus is not very useful for fiber but generally contains the greatest amount by weight of Cannabis resin. Until recently, it s cultivation has been mainly restricted to India, Persia and the Arab countries, where its leaves are often made into a milkshake and its resin is pressed into hashish. 

Marijuana comes from the flowering tops and leaves of two closely related species of plants known by the scientific names Cannabis sativa and Cannabis indica. Both species also produce the fiber known as hemp that is used for rope and fabric. In fact, the marijuana plant itself is often called hemp because its fiber has been so important throughout history. 

To explore the use of different kinds of natural ceUulosic fibers such as Cannabis indica for potential industrial applications, an efficient process for fabrication of C. md/ca/Unsaturated polyester (UPE) composites with properties exceeding the minimum strength and stiffness required by industry standards must be developed. Subsequently these composites can also be used in automotive applications. In this... 

FIGURE 15.1 Tensile strength of raw and mercerized Cannabis indica particle fibers-... 

FIGURE 15.7 SEM images of (a) neatUPE, (b) UPE+20% raw, and (c) UPE+0% mercerized Cannabis indica particle fibers-reinforced UPE composites. 

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