Performance Characteristics Of Polymers

Question 1

What are the key properties of LDPE (Low-density polyethylene)?

Answer 1

Flexible, tough, good chemical resistance, translucent.

Question 2

What are some common uses of LDPE?

Answer 2

Squeezy detergent bottles, bin liners, carrier bags, tubing.

Question 3

What are the properties of HDPE (High-density polyethylene)?

Answer 3

Hard, stiff, excellent chemical resistance.

Question 4

What are common uses of HDPE?

Answer 4

Chemical drums, jerry cans, kitchenware, toys.

Question 5

Give 2 properties of polypropylene (PP).

Answer 5

Tough, good fatigue resistance.

Question 6

Name 2 uses of polypropylene.

Answer 6

Rope, folders, food containers.

Question 7

What makes HIPS (High impact polystyrene) a popular choice for packaging?

Answer 7

Hard, rigid, tough, translucent.

Question 8

What is HIPS used for?

Answer 8

Yoghurt pots, refrigerator linings, single-use cups.

Question 9

What are the characteristics of ABS (Acrylonitrile butadiene styrene)?

Answer 9

Tough, hard, impact resistant.

Question 10

Give 2 uses of ABS.

Answer 10

Safety helmets, remote control casings.

Question 11

Why is PMMA (Acrylic) useful for display signs?

Answer 11

Tough, hard, good chemical resistance, translucent.

Question 12

What are two applications of PMMA?

Answer 12

Car light casings, CNC laser cut items.

Question 13

What are two properties of Nylon (polyamide)?

Answer 13

Tough, corrosion resistant, good wear resistance.

Question 14

What products are made from Nylon?

Answer 14

Bearings, gears, curtain rails.

Question 15

Describe the properties of rigid PVC.

Answer 15

Rigid, tough, good chemical and weather resistance.

Question 16

What is rigid PVC used for?

Answer 16

Window frames, guttering, water service pipes.

Question 17

Give a product that uses flexible PVC and why.

Answer 17

Hose pipes — flexible, good weather resistance.

Question 18

What are the key properties of Urea Formaldehyde?

Answer 18

Hard,Heat Resistant,Good electrical insulator,brittle

Question 19

What is UF commonly Used for?

Answer 19

Electrical fittings and adhesives

Question 20

What are the properties of melamine formaldehyde (MF)?

Answer 20

Hard, opaque, good resistance to heat and scratches.

Question 21

Common uses of MF?

Answer 21

Decorative laminates, kitchenware.

Question 22

What are the characteristics of polyester resin?

Answer 22

Brittle, rigid, good heat/electrical insulator.

Question 23

What is polyester resin used for?

Answer 23

Casting, boat hulls, car parts

Question 24

Describe epoxy resin’s properties.

Answer 24

Rigid, clear, tough, chemical resistant.

Question 25

Name two uses of epoxy resin

Answer 25

Adhesives, circuit boards

Question 26

What are the characteristics of natural rubber?

Answer 26

High tensile strength, good wear resistance, low elongation.

Question 27

Where is natural rubber commonly used?

Answer 27

Tyres, rubber bands, footwear

Question 28

What are properties of butadiene rubber (BR)?

Answer 28

Tough, excellent wear resistance, good against friction.

Question 29

What is BR used for?

Answer 29

Tyres, conveyor belts.

Question 30

What makes neoprene suitable for outdoor use?

Answer 30

Tough, oil/chemical/weather resistant.

Question 31

What are the key properties of silicone?

Answer 31

Flexible at low temps, poor abrasion resistance, good thermal/electrical insulator

Question 31

What are two uses of neoprene?

Answer 31

Wetsuits, laptop cases

Question 32

What is silicone used for?

Answer 32

Bakeware, sealants, tubing for medical use