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WorksheetsPOLYMERS AND COMPOSITES - II
Total questions: 15
Worksheet time: 8mins
Bulk polymerization is used to prepare -------------------------
Nylon 6,6
PVC
Polythene
Polycarbonate
Which among the following is a synthetic polymer?
proteins
polysaccharides
natural rubber
Nylon 6,6
Which of the following contains isoprene units?
Polythene
Natural rubber
Nylon 6,6
PVC
----------------------- technique is exclusively used to produce polymers from water insoluble monomer.
Bulk polymerization
Solution polymerization
Suspension polymerization
Emulsion polymerization
------------ is a binder or polymer material which holds the different constituents together.
Plasticizer
Resin
Pigments
Fillers
------------------ are additives which are added to resins to increase their plasticity and flexibility.
Resins
Fillers
Pigments
Plasticizers
Why fillers are used in polymer fabrication process?
To impart colour
To provide flexibility
To reduce making cost
To provide long life to polymer
------------- are added mainly to thermosetting resins to accelerate the polymerisation
Fillers
Pigments
Catalysts
Plasticizers
----------------- are added to make the moulding of plastic easier and to impart flawless, glossy finish to the products.
Plasticizers
Lubricants
Fillers
Pigments
--------- added to increase the thermal stability during processing.
Stabilizers
Fillers
Catalysts
Pigments
----------------------are added to impart desired colour to plastics.
Plastizicers
Pigments
Fillers
Lubricants
----------- are added to protect the plastics against oxidative degradation so as to preserve its quality.
Fillers
Pigments
Anti-oxidants
Plasticizers
-------------- method is applicable mainly to the thermoplastic resins.
Compression moulding
Injection moulding
Blow moulding
Extrusion moulding
------- moulding is used to fabricate hollow bottles.
Injection
Compression
Blow
Extrusion
--------------------- materials are used in compression moulding
Thermosetting
Thermoplastic
Commodity
High polymers
