performance characteristics of Polymers 3.1.2

Question 1

What is a synthetic Polymer?

Answer 1

Synthetic Polymers are made from crude oil and take a long time to degrade

Go into
- Thermoplastic
- Thermoset Polymer
- Elastomer

Question 2

What is a self finishing Polymer?

Answer 2

Can be pigmented during manufacture to give colour, therefore no additional secondary finishing process

Question 3

WHat is a Thermoplastic ?

Answer 3

A thermoplastic is a material that can be reheated and reshaped repeatedly allowing it to be recycled.

Question 4

What is a Thermoset Polymer?

Answer 4

A thermoset polymer are material that cannot be reheated or reshaped

Question 5

What is an Elastomer?

Answer 5

A material that at room temperature can be deformed under pressure, and when the pressure is released it will return to its original shape.

Question 6

What are the properties and uses of
Low Density Polyethene (LDPE)?
(THERMOPLASTIC)

Answer 6

Very tough, good chemical resistance, weatherproof, can be translucent (food safe )

USES - toys detergent bottles, carrier bags, bin liners, general packaging, clin film

Question 7

What are the properties and uses of
High Density Polyethene (HDPE)
(THERMOPLASTIC)

Answer 7

Can be translucent, weatherproof, good chemical resistance. Stronger than LDPE (food safe)
USES - toys, buckets, carrier bags

Question 8

What are the properties and uses of
Polypropylene (PP)?
(THERMOPLASTIC)

Answer 8

Can be translucent, has good chemical resistance, tough (food safe)
USES - food container, medical equipment, Bottle lids

Question 9

What are the properties and uses of
High Impact Polystyrene (HIPS)?
(THERMOPLASTICS)

Answer 9

Hard, tough, can be translucent, (food safe )

USES - Yogurt pots, refrigerator linings, toilet seats, single-use drink cups.

Question 10

What are the properties and uses of
(ABS)?
(THERMOPLASTIC)

Answer 10

Tough, hard, can be Opaque
USES - calculator casings

Question 11

What are the properties and uses of
(PMMA)?
(THERMOPLASTIC)

Answer 11

Tough, good chemical resistnace, can be trnaslucent
USES - baths , lighting covers

Question 12

What are the properties and uses of
(Nylon)?
(THERMOPLASTIC)

Answer 12

New york - London , durable plastic
Tough, corrosion resistant, low friction

USES - ropes , textiles, cable ties

Question 13

What are the properties and uses of
(Rigid polyvinyl chloride (uPVC)?
(THERMOPLASTIC)

Answer 13

Rigid, opaque, tough , hard, weather resistant

USES - window frames , guttering , pipes , water pipes

Question 14

What are the properties and uses of
Flexible PVC (PVC)?
(THEROPLASTIC)

Answer 14

can be translucent, tough , flexible, good weathering resistance, good chemical resistance
USES - hose pipes , seat covering, inflatable products

Question 15

What are the properties and uses of Urea Formaldehyde (UF)?
(THERMOSET POLYMERS)

Answer 15

Hard, heat resistant, good electrical insulator, brittle
USES - electrical fitting adhesives

Question 16

What are the properties and uses of Melamine formaldehyde?
(THERMOSET POLYMERS)

Answer 16

Hard, opaque, tough, heat resistant, food safe, chemical resistant,

USES - Picnic ware, buttons, decorative laminates.

Question 17

What are the properties and uses of Polyester resin?
(THERMOSET POLYMERS)

Answer 17

Rigid, heat resistant, chemical resistant and brittle

USES - Used in lay up process for glass reinforced plastic (GRP), car parts , chair seats.

Question 18

What are the properties and uses of Expoxy resin?
(THERMOSET POLYMERS)

Answer 18

rigid clear , hard , tough , chemical resistant
USES - adhesives, surface coatings , aerospace applications

Question 19

What are the properties and uses of Natural rubber?
(ELASTOMER)

Answer 19

High tensile strength, good hardness and toughness. electrical insulator.
USES - Tyres, balloons, toys, footwear.

Question 20

What are the properties and uses of Neoprene?
(ELASTOMER)

Answer 20

Good thermal resistance, tough, good weather resistance, and an electrical insulator.
USES - wetsuits, laptop case

Question 21

What are the properties and uses of Silicone?
(ELASTOMER)

Answer 21

Good flexibility at low temperatures, good weather resistance, good lubricant

USES - seals, cooking utensils