Give the Nomenclature of Organo silicone Compounds.
[3 marks]Write the definition of silicones according to their general structural principles.
[4 marks]Discuss in detail about the Direct synthesis process.
[7 marks]Give the general properties of silicone rubber.
[3 marks]Write the Syntheses by the Reaction of Hydrocarbons with Silanes.
[4 marks]Discuss in detail about Grignard Syntheses.
[7 marks]Explain the syntheses with organic compounds of the alkali metals.
[7 marks]Draw chemical structures of the following: (i) Ashby catalyst, (ii) Dimethyl fumarate
[3 marks]List out chemical names of 5 peroxides that can be used to cure silicones for a molding process and explain any one in detail.
[4 marks]Formulate a 30kg compound to manufacture silicone hot water bags and justify the reasons for including every ingredient you choose. Explain the mixing process – machinery, sequence and process.
[7 marks]Draw chemical structures of the following: (i) Karstedt catalyst, (ii) Dimethyl maleate
[3 marks]Write the hydrolysis process of dimethyl dichlorosilane.
[4 marks]Explain the mechanism of platinum curing using chemical equations and describe them in your own words. Also trace out the pros and cons of platinum curing over peroxide curing.
[7 marks]Describe the functions of these compounding ingredients in silicone: (i) BaZrO , (ii) TiO , (iii) PTFE2
[3 marks]List out silicone products manufactured using blow molding and explain blow molding process in brief.
[4 marks]Explain the complete injection molding process of silicone rubber.
[7 marks]Describe the functions of these compounding ingredients in silicone: (i) BaSO , (ii) ZnO, (iii) MDH
[3 marks]What is mold shrinkage? Explain mold shrinkage adjustment for silicone in case of compression molding assuming any suitable example.
[4 marks]Explain the manufacturing of a fabric wrapped silicone hose in detail.1
[7 marks]List out the applications of silicone rubber in textile and apparel industry.
[3 marks]Explain the types of silicone water-based elastomers based on curing mechanism.
[4 marks]Differentiate RTV-1 silicones & RTV-2 silicones.
[7 marks]Explain the function of silicone rubber used in paints and architectural coatings.
[3 marks]List out the process for preparing silicone water-based elastomers and explain in brief.
[4 marks]Differentiate addition curing RTV-2 silicones and condensation curing RTV-2 silicones.
[7 marks]