Polymer Technology Which of the following polymers shows the highest anti-tacking properties? Phenolic resin Melamine formaldehyde resin Alkyd resin Epoxy resin Phenolic resin Melamine formaldehyde resin Alkyd resin Epoxy resin ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plasticisers are high boiling liquids added to plastic polymers to impart toughness and flexibility at ordinary temperature. Which of the following is not a plasticiser? Tricresyl phosphate Ethylene glycol Stearic acid estors Esters of phthalic acid Tricresyl phosphate Ethylene glycol Stearic acid estors Esters of phthalic acid ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition of plasticisers to polymers results in partial neutralisation of intermolecular forces of attraction between the macro-molecules thereby increasing its Flexibility Chemical resistance All of these Tensile strength Flexibility Chemical resistance All of these Tensile strength ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polycaprolactum is also known as Nylon-6 SBR Nylon-66 Teflon Nylon-6 SBR Nylon-66 Teflon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Synthetic rubber Is softer at higher temperature Is brittle at low temperature Deforms, if stretched to double of its original dimension Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases Is softer at higher temperature Is brittle at low temperature Deforms, if stretched to double of its original dimension Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Valcunisation of rubber decreases its Tensile strength Working temperature range Resistance to organic solvents Tackiness Tensile strength Working temperature range Resistance to organic solvents Tackiness ANSWER DOWNLOAD EXAMIANS APP
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