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Polymer Technology

Acrylonitrile-butadiene-styrene (ABS) copolymer, which is produced by blending styreneacrylonitrile copolymer with butadiene based elastomer, is a/an__________________?

Polymer Technology /
Acrylonitrile-butadiene-styrene (ABS) copolymer, which is produced by blending styreneacrylonitrile copolymer with butadiene based elastomer, is a/an__________________?

A. Rigid foam
B. Engineering plastic
C. Thermosetting polymer
D. Spongy rubber

Acrylonitrile-butadiene-styrene (ABS) copolymer, which is produced by blending styreneacrylonitrile copolymer with butadiene based elastomer, is a/an__________________? Read More »

Polymer Technology

Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxidant used in rubber ?

Polymer Technology /
Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxidant used in rubber ?

A. Carbon
B. Alkylated diphenyl amine
C. Thiokol
D. Magnesium

Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxidant used in rubber ? Read More »

Polymer Technology

Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butadiene rubber) are____________________?

Polymer Technology /
Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butadiene rubber) are____________________?

A. 50°C and 3 – 4 kg/cm2
B. 50°C and 1 kgf/cm2
C. 250°C and 10 kgf/cm2
D. 250°C and 1 kgf/cm2

Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butadiene rubber) are____________________? Read More »

Polymer Technology

Cross linked polymers formed from bi-and trifunctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer ______________ properties?

Polymer Technology /
Cross linked polymers formed from bi-and trifunctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer ______________ properties?

A. Thermoplastic
B. Thermosetting
C. Elastometric
D. Brittleness

Cross linked polymers formed from bi-and trifunctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer ______________ properties? Read More »

Polymer Technology