Polymer Technology Archives

Catalyst used in the production of high density polythene by low pressure Ziegler process is ____________________?

Catalyst used in the production of high density polythene by low pressure Ziegler process is ____________________?

A. Aluminium triethyl activated with TiCl4
B. Platinum
C. Molybdenum
D. Nickel

Catalyst used in the production of high density polythene by low pressure Ziegler process is ____________________? Read More »

Polymer Technology

Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is__________________?

Polymer Technology / admin

Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is__________________?

A. 7 kgf/cm2 and 70 °C
B. 1000 kgf/cm2 and 100°C
C. 7 kgf/cm2 and 700°C
D. 1 kgf/cm2 (gage) and 70°C

Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is__________________? Read More »

Polymer Technology

Elastomers are__________________?

Polymer Technology / admin

Elastomers are__________________?

A. Thermosetting material
B. Exemplified by protein derivatives
C. Having high flexural strength
D. Having very high tensile strength and heat resistance

Elastomers are__________________? Read More »

Polymer Technology

The generic chemical name for the class of polymers which are commercially known as nylons is______________________?

Polymer Technology / admin

The generic chemical name for the class of polymers which are commercially known as nylons is______________________?

A. Polyolefins
B. Polyamide
C. Polyacrylate
D. Polyurethane

The generic chemical name for the class of polymers which are commercially known as nylons is______________________? Read More »

Polymer Technology

Phthalic anhydride is used___________________?

Polymer Technology / admin

Phthalic anhydride is used___________________?

A. In making PVC
B. As plasticisers
C. In insecticides manufacture
D. For making nylon-6

Phthalic anhydride is used___________________? Read More »

Polymer Technology

The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is____________________?

Polymer Technology / admin

The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is____________________?

A. Polyvinyl alcohol
B. Polyvinyl acetate
C. Polyvinyl butyral
D. PVC

Polymer Technology

Polycaprolactam is also known as _________________?

Polymer Technology / admin

Polycaprolactam is also known as _________________?

A. Nylon-66
B. Nylon-6
C. Teflon
D. SBR

Polycaprolactam is also known as _________________? Read More »

Polymer Technology

Melt spinning of polymers involves the forcing of polymer melt through spinnerates (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the _____________ fibres?

Polymer Technology / admin

Melt sning of polymers involves the forcing of polymer melt through snerates (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt sning is not used in case of the _____________ fibres?

A. Acrylic
B. Polyester
C. Nylon 6:6
D. Polypropylene

Melt spinning of polymers involves the forcing of polymer melt through spinnerates (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the _____________ fibres? Read More »

Polymer Technology