Download GTU B.Tech 2020 Winter 7th Sem 2172308 Speciality Plastics And Applications Question Paper

Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 7th Sem 2172308 Speciality Plastics And Applications Previous Question Paper

Seat No.: ________
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?VII (NEW) EXAMINATION ? WINTER 2020
Subject Code:2172308 Date:28/01/2021
Subject Name:Speciality Plastics & applications
Time:10:30 AM TO 12:30 PM Total Marks: 56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.


MARKS
Q.1
(a) Define high performance plastics with examples.
03

(b) Write down unique properties of thermotropic LCP.
04

(c) What do you mean by sterilization? Write down various types
07
sterilization method in brief.


Q.2
(a) Write down the properties and applications of polyamides (Nylon 6).
03

(b) Write down the structure, properties and applications of ABS.
04

(c) Write down preparation, properties and applications of PEEK.
07




m
Q.3
(a) Explain the term antimicrobial additives. Why they are used in medical
03
devices? Give examples of antimicrobial additives.

(b) Define the term bio compatibility. Why it is important in medical
04
device?
ty

(c) Write down structure, properties and applications of PAI.
07
types




Q.4
(a) What are the requirements of plastics to be used in aerospace
03
applications?

(b) What are nano additives? Write down the function of nano additives.
04

(c) Draw the structure, properties and applications of PES.
07



Q.5
(a) Define conductive filler with examples.
03

(b) Write short notes on joining and welding.
04

(c) Write down preparation, properties and applications of Poly carbonate
07
(PC).



Q.6
(a) Write down properties and applications of PVC.
03

(b) Write short notes on radio opaque additives.
04

(c) Write down the preparation, properties and applications of Polyurethane
07
(PU).



Q.7
(a) What is the function of stabilizer? Write few examples heat and UV
03
stabilizer.

(b) Write a short notes on i)USP class VI ii) ISO 10993.
04

(c) Write down preparation, properties and applications of Epoxy Resin
07



Q.8
(a) List the names of plastics and its applications in marine industry.
03
(b) Write down the properties and applications of polychlorotrifluoro
04
ethylene (PCTFE).
(c) Write down the structure, properties and applications of PPS.
07

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