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Polymer Science and Engineering

Biopolymers such as PLA, PHA/PHB

Exams

GATE XE

Subjects

Polymer Science and Engineering

Topics

Biopolymers such as PLA, PHA/PHB
Analysis of polymers using IR, XRD, thermal (DSC, DMTA, TGA), optical and electronic techniques
Choice of polymers for blending, blend miscibility-miscible and immiscible blends
Concept of intermolecular order (morphology)
Concept of molecular weight distribution and its significance
Copolymerization
Cross-linking and vulcanization
Crystalline transition
Different compounding ingredients for rubber and plastics and their function
Extrusion
Glass transition
Injection molding
Kinetics of polymerization
Measurements of rheological parameters by capillary rotating parallel plate, cone-plate rheometer
Mechanical-static and dynamic tensile
Melting transition
Molecular/segmental deformations at different zones and transitions
Natural and synthetic rubbers
Particulate, long and short fibre reinforced composites
Polymer Science
Polymer crystallinity
Polymer processing
Polymer reinforcement
Recycling of thermoplastics, thermosets and rubbers
Solubility and swelling
Techniques for polymerization
Thermodynamics
Twin screw extruder
Visco-elasticity- creep and stress relaxations
Viscosity and rheology
Vulcanization kinetics
X-ray Diffraction

List of top Polymer Science and Engineering Questions on Biopolymers such as PLA, PHA/PHB

Which one of the following is an example of a biodegradable polymer?

GATE XE - 2021
GATE XE
Polymer Science and Engineering
Biopolymers such as PLA, PHA/PHB