Polymer Technology Alkyd resin e.g., glyptal resin formed by phthalic anhydride and glycerene is not used For film forming materials As plasticiser for PVC & nitrocellulose For surface coating of automobiles & air crafts For fibre making For film forming materials As plasticiser for PVC & nitrocellulose For surface coating of automobiles & air crafts For fibre making ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Reaction of dimethyl terephthalate (DMT) and ethylene glycol produces Nylon-6 Dacron Polyester PVC Nylon-6 Dacron Polyester PVC ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex? Potassium alum Neither A nor B Ammonium alum Both A & B Potassium alum Neither A nor B Ammonium alum Both A & B ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Silicone resins, which are highly water repellant and has good heat resistance can not be used Resin for lamination As grease & lubricant Hydraulic fluid for heat transfer As room temperature adhesive Resin for lamination As grease & lubricant Hydraulic fluid for heat transfer As room temperature adhesive 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? Ethylene glycol Stearic acid estors Tricresyl phosphate Esters of phthalic acid Ethylene glycol Stearic acid estors Tricresyl phosphate Esters of phthalic acid ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polycaprolactum (Nylon - 6) is produced by the condensation polymerisation of caprolactum at 240-280°C in which the conversion of caprolactum is about __________ percent. 50 90 99 75 50 90 99 75 ANSWER DOWNLOAD EXAMIANS APP
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