Polymer Technology Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxident used in rubber? Alkylated diphenyl amine Thiokol Carbon Magnesium Alkylated diphenyl amine Thiokol Carbon Magnesium ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Epoxy resins (i.e., epoxide polymers) Contain an epoxy group ( ##### ) at the ends of the polymer Are made by addition polymerisation reaction only Are cross-linked polymers only Use emulsion polymerisation methods Contain an epoxy group ( ##### ) at the ends of the polymer Are made by addition polymerisation reaction only Are cross-linked polymers only Use emulsion polymerisation methods ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Nylon 6 as compared to nylon 6, 6 has lower Abrasion resistance Adhesion to rubber Hardness Thermal stability Abrasion resistance Adhesion to rubber Hardness Thermal stability ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Due to its excellent permeability to air/gas and oxidation resistance, the tubes of automobile tyres is made of Butyl rubber Cold SBR Bunai N Buna S Butyl rubber Cold SBR Bunai N Buna S ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Vulcanisation of raw rubber makes it Plastic Less elastic Soft Tacky Plastic Less elastic Soft Tacky ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosetting resins/polymers as compared to thermoplastic ones are Formed by addition polymerisation only More brittle Easily reshaped & reused Soluble in all organic solvents Formed by addition polymerisation only More brittle Easily reshaped & reused Soluble in all organic solvents ANSWER DOWNLOAD EXAMIANS APP
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