GTU BE 8th Semester 2183611 Recycling and Packaging of Polymer and Rubber(Department Elective – X) Summer 2018 Question Paper

1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE – SEMESTER ?VIII (NEW) – EXAMINATION ? SUMMER 2018
Subject Code: 2183611 Date: 02/05/2018
Subject Name: Recycling and Packaging of Polymer and
Rubber(Department Elective ? X)
Time: 10:30 AM to 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

MARKS
Q.1 (a) Write Major sources of plastic waste 03
(b) Write structure of : PET, PU, PVC, Nylon 6 04
(c) Write a note on Diff. technology used for devalcunization of end of life
tyre
07

Q.2 (a) Write about handling of E-waste 03
(b) Write chemistry of polystyrene and it?s Recycling 04
(c) How do we identify the plastic waste and also mention their separation
technique
07
OR
(c) Write about general techniques used for recycling of scrap tyres 07
Q.3 (a) Write brief note on the comparison of Thermoset & thermoplastic
compounds
03
(b) Explain the pyrolysis of scrap tyres with the help of diagram 04
(c) Write a note on the recycling of nylon-6 from waste tyres 07
OR
Q.3 (a) Write any TWO industries working on the recycling of polymer and give
their information.
03
(b) Write in detail about thermo chemical technique for devalcunisation of
scrap rubber
04
(c) Write a note on recycling of PET 07
Q.4 (a) Write Principle behind 3 R 03
(b) Write a note on different grinding techniques for polymer 04
(c) Describe various flexible packaging surfaces used for different purposes.
How, the printing of these is done?
Discuss the details of any one of the processes of printing used on this.
07
OR
Q.4 (a) Compare recycling of Industrial and consumer plastic waste. 03
(b) Write a note on reclaiming process via twin screw extruder 04
(c) Explain in detail :- Lamination technique 07

1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE – SEMESTER ?VIII (NEW) – EXAMINATION ? SUMMER 2018
Subject Code: 2183611 Date: 02/05/2018
Subject Name: Recycling and Packaging of Polymer and
Rubber(Department Elective ? X)
Time: 10:30 AM to 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

MARKS
Q.1 (a) Write Major sources of plastic waste 03
(b) Write structure of : PET, PU, PVC, Nylon 6 04
(c) Write a note on Diff. technology used for devalcunization of end of life
tyre
07

Q.2 (a) Write about handling of E-waste 03
(b) Write chemistry of polystyrene and it?s Recycling 04
(c) How do we identify the plastic waste and also mention their separation
technique
07
OR
(c) Write about general techniques used for recycling of scrap tyres 07
Q.3 (a) Write brief note on the comparison of Thermoset & thermoplastic
compounds
03
(b) Explain the pyrolysis of scrap tyres with the help of diagram 04
(c) Write a note on the recycling of nylon-6 from waste tyres 07
OR
Q.3 (a) Write any TWO industries working on the recycling of polymer and give
their information.
03
(b) Write in detail about thermo chemical technique for devalcunisation of
scrap rubber
04
(c) Write a note on recycling of PET 07
Q.4 (a) Write Principle behind 3 R 03
(b) Write a note on different grinding techniques for polymer 04
(c) Describe various flexible packaging surfaces used for different purposes.
How, the printing of these is done?
Discuss the details of any one of the processes of printing used on this.
07
OR
Q.4 (a) Compare recycling of Industrial and consumer plastic waste. 03
(b) Write a note on reclaiming process via twin screw extruder 04
(c) Explain in detail :- Lamination technique 07

2
Q.5 (a) Describe the product characteristics and packaging requirements as well
suggest suitable materials for milk and dairy products.
03
(b) Explain how recycling of post consumer polymer is carried out. Enlist
the types of plastic containers that should not be recycled.
04
(c) Write detail note on the recycling classification 07
OR
Q.5 (a)Describe the properties and application of PVDC polymer films
03
(b) Explain ? Use of Nanotechnology for reclaim rubber? 04
(c) Write note on Meaning, Function, Types, Importance & Features of
Packaging
07
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