Polymer Technology In step growth polymerisation, generally only one type of reaction & some basic mechanism is involved. Step growth polymerisation reaction is not involved in the manufacture of Phenol formaldehyde resins Polyamides Cross linked polystyrene Polyesters Phenol formaldehyde resins Polyamides Cross linked polystyrene Polyesters ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Phosphates (e.g., triceresyl, tributyl, tetrabutyl, tripheyl etc.) are added to polymers to act as Anti-shrinkage agents Plasticisers Hardeners Transparency improver Anti-shrinkage agents Plasticisers Hardeners Transparency improver ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plastic articles are normally produced by __________ moulding. Injection Shell Green sand Dry sand Injection Shell Green sand Dry sand ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Tyres are made by Injection moulding Rotational moulding Compression moulding Extrusion Injection moulding Rotational moulding Compression moulding Extrusion ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Vinyl flooring is done using __________ sheets. PVC Polypropylene Polythene Polyvinyl acetate PVC Polypropylene Polythene Polyvinyl acetate ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their Magnitude of intermolecular forces Polymerisation mechanism Resistance to heat Molecular sizes Magnitude of intermolecular forces Polymerisation mechanism Resistance to heat Molecular sizes ANSWER DOWNLOAD EXAMIANS APP
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