Download SGBAU B-Tech 5th Sem Chem Poly Plast Polymer Materials Question Paper

Download SGBAU (Sant Gadge Baba Amravati university) B-Tech/BE (Bachelor of Technology) 5th Sem Chem Poly Plast Polymer Materials Previous Question Paper

B.Tech. F i?h Semester (Che. Tech. (Poly) (Plas.) Tech.) (CGS)
11116 : Polymer Materials : 5 PP 02
P. Pages : 2 ?M?mlmmm AW - 3151
Time : Three Hours .. 0? 1.. 7?. Max. Marks : 80
Notes: 1. Answer three question from Section A and three question from Section B.
2. Due credit will be given to neatness and adequate dimensions.
3. Diagrams and chemical equations should be given wherever necessary.
4. Illustrate your answer necessary with the help of neat sketches.
5. Discuss the reaction, mechanism wherever necessary.
6. Use of pen Bluc/Black ink/re?ll only for vwiting the answer book.
SECTION - A
1. 21) Discuss basic raw materials for polymer and their availability. 7
b) Distinguish among the structure and properties of LDPE, LLDPE and HDPE. 6
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2. 3) Explain PP with respect to its different tacticity. 7
b) Explain important properties and applications ot'LDl?E. 6
3. :1) Explain the function and example of any six additives used in PVC compounding. 6
b) Discuss preparations of PVC by any one polymerization method with the help of ?ow sheet. 7
OR
4. :1) Explain preparation, properties and uses ofcellulose nitrate. 7
b) Explain preparation, properties and uses ofCAB. 6
5. 3) Explain important properties and uses ofPMMA. 6
b) Explain preparation, properties and uses of EPS. 8
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6. a) Explain important propenies and uses of SAN. V 6
b) Explain preparation, propcnics and uses of HIPS. 8
SECTION - B
7. a) Explain preparation. properties and uses ol?acctal resin. 8
b) Discuss important properties and uses of PFC. 6
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AW - 3151 1 P.T.O

10.
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12.
AW - 3151
a)
b)
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h)
b)
a)
b)
3)
b)
Explain preparation, properties and uses ofPET.
Discuss important properties and user; of PTFE. .
Expla'n chemistry and moulding p0? dcr preparation in cam: Of PF.
Discuss important properties and user; of U F .
OR
Explain chemistry of [IF and state the role of different ingredients used in UF moulding
compound.
Discuss important propertiw and uses? OI'MF.
Explain the preparation of epoxy resin.
Discuss important properties and use; nt~ unsaturated polyester resin.
OR
Discuss the preparation ofu'llyl resin.
Compare epoxy resin \\ ith unsaturated polyester resin with respect to curing characteristics
and uses.
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