Polymer Technology Low pressure Zeigler process of polythene manufacture Employs a pressure of 30 kgf/cm² Achieves an yield of 95-98% based on ethylene Does not use any catalyst for polymerisation Produces very low density polythene Employs a pressure of 30 kgf/cm² Achieves an yield of 95-98% based on ethylene Does not use any catalyst for polymerisation Produces very low density polythene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Vulcanisation of raw rubber makes it Less elastic Tacky Plastic Soft Less elastic Tacky Plastic Soft ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Buna-N is also called Neoprene Butyl rubber Nitrile rubber Thiokol Neoprene Butyl rubber Nitrile rubber Thiokol ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ polythene is most prone to stress-cracking Low density Cross-linked High density Linear low density Low density Cross-linked High density Linear low density ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Synthetic rubber Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases Deforms, if stretched to double of its original dimension Is brittle at low temperature Is softer at higher temperature Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases Deforms, if stretched to double of its original dimension Is brittle at low temperature Is softer at higher temperature ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Tyres are made by Injection moulding Extrusion Compression moulding Rotational moulding Injection moulding Extrusion Compression moulding Rotational moulding ANSWER DOWNLOAD EXAMIANS APP
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