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Monday, August 20, 2012

ALL ABOUT POLYMER ENGINEERING

POLYMER ENGINEERING:

->  IT IS DEFINED AS ENGINEERING FIELD WHICH DESIGNS, ANALYSES, AND/OR MODIFIES POLYMER MATERIALS.

->  POLYMER ENGINEERING ASPECTS OF PETROCHEMICAL INDUSTRY, POLYMERIZATION, STRUCTURE AND CHARACTERIZATION OF POLYMERS.



-> THIS TYPE OF POLYMER ENGINEERING ALSO COVERS THE TOPIC LIKE THE STUDYING OF PROPERTIES OF POLYMER, COMPOUNDING AND PROCESSING OF DIFFERENT TYPE OF POLYMERS , THEIR STRUCTURES AND THEIR RELATIONS AS WELL.

->POLYMER ENGINEERS USES THE PRINCIPLE OF PLANT DESIGN, PROCESS DESIGN,
THERMODYNAMICS, AND TRANSPORT PHENMENONA TO DEVELOP NEW PRODUCTS.

-> NOW THE QUESTION ARISES HOW THE POLYMER ARE DIVIDED ?
    THE DIVISION OF THE POLYMER INTO THE THERMOSETS AND THERMOPLASTICS HELP DEFINES THEIR AREAS OF APPLICATION.

-> THERMOSETS: IT IS THE POLYMER MATERIALS THAT IRREVERSIBLY CURES. THE CURE MAY BE DONE THROUGH HEAT THROUGH A CHEMICAL REACTION OR IRRADIATION SUCH AS ELECTRON PROCESSING BEAM.THERMOSETS BREAK UPON HEATING AND DO NOT REFORM AGAIN UPON COOLING.


-> THERMOPLASTICS: (ALSO KNOWN AS THERMOSOFTENING PLASTIC) IT IS THE POLYMER THAT BECOMES PLIABLE ABOVE A SPECIFIC TEMPERATURE, AND THEN IT RETURNS TO A SOLID STATE AFTER GETTING COOL. MOST THERMOPLASTICS HAVE HIGHER MOLECULAR WEIGHT , WHOSE CHAIN ASSOCIATES THROUGH INTERMOLECULAR FORCES.



-> APPLICATION OF THE POLYMER ENGINEERING:

1) AEROSPACE

2) AUTOMOBILES

3) FISHING RODS

4) BICYCLES

5) HELICOPTER RADAR BLADES

6) PROPELLER