some of the properties required for polymer applications in agriculture
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Properties required for polymers in agricultureTRANSCRIPT
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Properties of Polymer in Agriculture
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Viscoelastic property Combination of
Viscosity
Elastic
Response
VE• under mechanical stress, of materials which are intermediate
between liquids and solids
VE• It depends upon Temperature and pressure
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PolymersUsed as basic material in soil conditioners etc., which is very important in
Agriculture
Pharmaceutical industry
Bio-technology
Textile industry
Automobile industry
Petroleum industry
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Transmission
Stability
Permeability
Principal requirements for a polymer
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Permeability
Permeation is the rate a which a gas or vapor passes
through a polymeric material.
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TRANSMISSION
Polymer- water vapor transmission
Polymer-soil surface
transmission
Inter layer transmission
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STABILITY
Polymer Stability deals with the degradation reactions and their control which are a major preoccupation of practitioners of the many and diverse aspects of modern polymer technology.
Stability is nothing but how polymer can withstand.
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POLYMERIC BIOCIDESAspects
It allows lower amounts than conventional biocides
It releases required amount of active agent over a long period
Reduction of toxicity
Reduction of evaporation and degradation
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MolluscicidesThe use of molluscicides is to combat various mollusks,
the applications of large quantities of these Chemicals are required
Chemical combination of Molluscicides with functionalized polymers
Enhancing the eradication of snails
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Polymeric soil conditioners The polymers were developed to improve the physical properties of soil in view of:
increasing their water-holding capacity increasing water use efficiency enhancing soil permeability and infiltration rates reducing irrigation frequency reducing compaction tendency stopping erosion and water run-off increasing plant performance (especially in structure-less soils
in areas subject to drought).
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Bio degradable polymers
Increasingly used as Plastics substitutes for several applications in agricultural field
Bio-degradable polymers disposed in bioactive environment
Conventional polymers, Polyethylene and Poly-propylene persist for many years after disposal
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Polymers in Agro-chemical
It supports Herbicides overcome the serious environmental problems of the
conventional herbicides
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Polymers in Heavy metal Removing
Major Problem in Agriculture Is Soil Pollution due to Heavy metals
The soil is long term sink for the group of toxic elements(heavy metals)
Say Zinc, copper, Nickel, Lead, Chromium, Cadmium
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Thank you