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Formulation to obtain a biodegradable polymerfrom
yucca starch, variety MBRA 383
AbstractPlastic is the main industrial product causing high
volumes of non-biodegradable aste due tothe strongchemical lin!ages
that result during its preparation and to the fact that its ra
materials arederived frompetroleum" #his article presents an option
to minimi$e this problem through the preparation of
abiodegradablepolymer from isocyanate %alcoholic compound& and
its reinforcement or substitution by usingyucca starch,ra material
of vegetable origin that provides the same chemical characteristics
to obtain abiodegradablepolymer ithout altering or increasing the
polymeric e'pansion
BA()*R+.
#he man, from the earliest stages of social development, has
used resources
land for survival and progress ithout the aste has raised it a
signi/cant
problem, as the orld population as sparse and the land available
very
e'tensive" 0oever, indiscriminate aste generation and the
current level of
aareness that society has on the ecology have forced it to see!
ne
technologies that provide more environmentally benign
products
ambiente"Aun1ue industrial development is relatively recent
-only too! place, a
ma2or scale at the beginning of last the /rst applications of
plastic ere made
in the /rst half of the nineteenth century"
and *ermany ere the /rst to develop and mar!et products such as
P4(5
%567-569&" ntil 569: the industriali$ation process as
characteri$ed by
plastic a precarious commercial scale production and use of ra
materials of
origin natural, from hich as obtained celluloid"
#oday, countries li!e ;apan and *ermany, among others, are
pioneers in the
production of biodegradable materials"
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developing biodegradable products, as is the case of polymers
derived
cassava-starch having similar industrial 1ualities as ell as
being ra material
of lo cost and good 1uality
ynthetic Polymers
)non generically as plastic, they are obtained from various
substances
vegetable and mineral origin" From the simplest to the most
comple' they have
0e had a vast !noledge and have been used in almost all areas of
human
activity, due to its multiple applications and the ide range of
properties
e'hibited?
for e'ample, food preservation have been used directly and
pac!aging,
containers and pac!aging"
Also, in combination ith other materials, they have been used
successfully in
structures @e'ible comple', hich have as their fundamental
ob2ective the best
features barrier against the agents of deterioration"
#he plastic is produced from basic ra materials, called
monomers, 7 sub2ect
speci/c chemical reactions %polymeri$ation, polyaddition and
policonden$acin&
in particular conditions" (ommerciali$ation is in the form of
poders, granules,
@a!es, li1uids or suspensions, hich ill then be processed to
obtain materials
intermediate %/lms, sheets, tubes, etc"& or fully /nished
products %bags,
containers, bottles&"
Among the polymer prepared by the producer and the material
reaches the
processor or converter, there is a step hich includes adding
modi/ers serve to
impart properties to the polymers or improve e'isting ones? ie
ma!e plastics
more @e'ible %ith the use of plastici$ers&, lightfastness
and heat %ith the useof stabili$ers&, strong and impact
resistant, colored by pigments, etc"
(ompanies that provide additives #hey are generally the same
polymer
production"
#he formulation of the base resin %polymer blend ith
additives& is usually
performed by the producer" 0oever, there are many inverters that
are in
ability to carry out their on formulations from certain
elements"
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