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Polymer Technology

Polymer Technology
Bristles of tooth brushes are made of

PVC
Polystyrene
Nylon-66
Nylon-6

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Polymer Technology
Which of the following is the most important rubber compounding ingradient which is used to improve wearing qualities of both natural rubber & SBR by imparting toughness?

Rosin
Carbon black
Pine oil
Phosphorous

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Polymer Technology
The organic acid monomer in nylon 66 is

Benzoic acid
Terephthalic acid
Sebasic acid
Adipic acid

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Polymer Technology
Polymethyl methacrylate, which is an acrylic resin, is also called

Teflon
Dacron
Thiokol
Plexiglass or lucite

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Polymer Technology
Which of the following types of polymers has the strongest inter particle forces?

Thermoplastics
Fibres
Thermosetting polymers
Elastomers

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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

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