Paper Title
Important Uses of Leptadenia Pyrotechnica of Bikaner
Abstract
Importance of composite materials is seen in all age of history and all ancient civilazations have used such
materials. The main objective of this study is to prove the industrial use of local plants found in desert area. The study
provides useful parameters for fiber industry so that material can be used properly for particular application and can
competes the international market. By these parameters we try to develop understanding for usefulness of new natural fiber
composite material with respect to exiting plastic material. The knowledge said parameters are useful for understanding the
microscopic level study. The theory, models and equipment used are accepted under international standards. By the proposed
work we investigate phase transformation, somr thermal properties of fiber reinforced phenol formaldehyde composites of
Leptadenia pyrotechnica .
It is planned to investihate strength, phase transformation and some thermo physical properties of compoite materials in
respect of polymer made by plastics.
Leptadenia pyrotechnica (Hindi : [khai) is the botanical name of a desert herb of the family Asclepiadaceae. It is known as
himpin Hindi and Urdu, “Khipp”. Being highly brought-resistant, leptadenia pyrotechnica has played an important role in
the desert afforestation programs. The herb khimpis a strong soil- binder and as such is one of the pioneer species in sand
dune fixation. Only a few workers have done work on composite of fibers of desert plant and since plants are able to survive
under extreme whether conditions, their composites are expected to provided good result . fiber reinforcement plastics are
commonly used by modern electronic industry, and, since the disposal is not easy for such fiber reinforced plastics, the
development of fiber reinforced plastics that harmonized with environment ie demanded [1]. Form such a viewpoint, some
researchers have been studying to use the natural fiber, which it has a moderate mechanical property and is a green material
as a reinforcement of the conventional fiber reinforced plastic [2,3] However, since generally the strength of natural fiber is
lower than that of the glass fiber etc. , it is necessary to produce a green composite with higher fiber content and longer fiber
length in order to obtain a natural fiber reinforced composite material with high strength. Therefore, it is important to
develop a new creative technonlogy for the composite material that fills these demands [4]. Natural fiber composites are
emerging as realistic alternatives to glass- reinforced composites in many applications. Natural fiber composites such as
hemp foiber-epoxy, flax fiber-polypropylene (PP), and china reed fiber- PP are particularly attractive in automotive
applications because of lower cost and lower density. [5]. Natural fibers traditionally have been used to fill and reinforce
thermo-sets, natural fiber reinforced thermoplastics, especially polypropylene composites, have attracted greater attention
duteto their added advantage of recyclability [6]. Natural fibers theoretically result in no net addition to CO2 emissions,
Which natural fibers are obtained,appropriate atmospheric carbon dioxide during their growth,which is released during the
combustion of natural fibers.hence incineration of natural fibers reinforced composites lead to positive carbon credits and
lower global warming effect [7].the properties of natural fibers we want determine,keep in mind that one is dealing with
natural producat with properties that are strongly influenced by their growing environment.temperature, humidity, the
composition of the soil and the air all affect the height of the plant,strength of its fibers density, etc.and the way by which
palnts, are harvested and processed result in a variation of propertied [8].’’ Crotalaria burhia’ is fount in desert of western
rajasthan the fibers obtained in these have many advantages like eco-friendly, easy process-able, low cost,non
toxic,abundance in nature, low density high srengh etc.
Leptadenia comprises 4 species occurring from Africa to India. Leptadenia pyrotechnica is most of the time leafless, whereas
the other 3 species, Leptadenia hastata (Pers.) Decne., Leptadenia arborea (Forssk.) Schweinf. (synonym: Leptadenia
heterophylla (Del.) Decne.) and Leptadenia reticulata (Retz.) Wight & Arn. (synonym: Leptadenia madagascariensis Decne.)
are leafy, twining shrubs. These 3 species form a species complex, and further taxonomic research might reveal that they
should be considered as a single species.
Leptadenia arborea occurs from West Africa east to Arabia. In Sudan a root decoction is drunk to treat gonorrhoea,
constipation and colic. The roots are given to cattle and horses to treat flatulence. The plant is considered excellent forage for
all livestock. Children eat the ripe fruits. The plant can be cultivated as an ornamental by training it as a vine over a pergola
or wall. From the leaves, stems and fruits β-amyrin, α-amyrin, a mixture of campesterol and stigmasterol, pinoresinol,
syringaresinol, leucanthemitol and ferulaldehyde were isolated. Syringaresinol has shown an inhibitory effect against
acetylcholinesterase. The IC50 of syringaresinol was 200 μg/ml.