Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

DT > Polymers > Flashcards

Polymers Flashcards

1
Q

Polymers

A

Plastics from crude oil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Two categories of polymers

A

Thermoforming or Thermosetting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Thermoforming

A

Have a “plastic memory” - goes back to original shape when heated
Melt at low temperatures
Recyclable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Examples of thermoforming Plastics

A

ABS
HDPE
nylon
PMMA (Acrylic)
UPVC
PP
PVC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

ThermoSetting plastics

A

Rigid Links
Cannot be reformed due to chemical reactions
Can take high temperatures
Cannot be softened when heated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Thermoforming Setting plastics examples

A

Polyester resin
Epoxy resin
Urea formaldehyde
Melamine formaldehyde

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Elastomers

A

Any rubbery material

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Examples of elastomers

A

Neoprene, silicone, buradiene, natural rubber

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Polymers Enhancement:

A

Something that is added to polymers stock form that enhances the product to improve performance or decrease cost

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Polymer enhancement examples

A

Fire retardants, bulkers, colourings, plasticiser, biodegradable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Plastic Recycling

A

Polymer identification symbols to identify what plastic it is

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is a biodegradable polymer

A

Bio polymers can be designed to degrade in a shorter time than usual

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

How is polymer biodegraded

A

Light, oxygen or water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Natural bio-polymer

A

Made from natural materials such as cellulose, starch and polysaccharide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Synthetic bio polymer

A

Made from renewable resources but chemically engineered to break down quicker

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Stock forms for polymers

A

Granules
Sheet
Tube
Film
Foam
Powder

17
Q

Name all polymer processes

A

Vacuum forming
Thermoforming
Blow moulding

DT (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions