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Textiles > 1.1 - 1.2 - 1.3 > Flashcards

1.1 - 1.2 - 1.3 Flashcards

1
Q

What is design obsolescence?

A

Where a company specifically design products to not last long to there is a constant demand for new products, to increase sales

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2
Q

Example of design obsolescence

A

A laptop/phone - designed to slow down after new models are released

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3
Q

What is designing for maintenance?

A

Companies design products which can be repaired or with removable parts which can be replaced

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4
Q

To keep prices low, manufacturers…. 1)

A

Automating factories, replacing human workforce = workers paid less and in poor conditions, less jobs for people

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5
Q

To keep prices low, manufacturers… 2)

A

Making products in a country where labour and resources are cheaper = transport of products between countries increases carbon emissions

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6
Q

To keep prices low, manufacturers… 3)

A

Using inferior materials and components that won’t last = water scarcity and pollution can be caused by excessive farming, or irresponsible disposal of due effluent and toxic chemicals

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7
Q

What could happen to a product once someone has Finnished using it?

A

Burnt, dumped in ocean, landfill, thrown away, recycled, reused, repared

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8
Q

Impact of some disposal practices

A

Waste takes up space and toxic chemicals leech out of products, polluting people, the air and waterways

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9
Q

What is a co-operative?

A

A business that is owned and managed by its workers

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10
Q

What is true about industry?

A

And increased use of robotics has let to a reduction in manual jobs

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11
Q

Technology push, 3 stages and examples

A

Research + development
New product
Introduce to public
Eg. Mobile phones, 3D TV, ipad, robotic vacuum cleaner

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12
Q

Market pull, 3 stages and examples

A

Need/requirement identified
Product development
New product
Eg. Digital computers, reusable shopping bags, gluten free products

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13
Q

What to consider making your design inclusive:

A 
Colour
Name and sound (pronunciation) for brand names
Layout of text
Materials
Accessible/accessibility
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14
Q

Advantages of fossil fuels

A 
Efficient amounts of energy
Already set up = low running costs
Provides jobs
Easier to transport
Can build power stations anywhere
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15
Q

Disadvantages of fossil fuels

A 
Going to run out
Green House gases = global warming
Scaring landscapes (mining)
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16
Q

Advantages of nuclear power

A 
Abundant
Reliable clean source of energy
Lack of carbon emissions
Not going to run out soon
Easy to use
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17
Q

Disadvantages of nuclear power

A 
Radiation
Destructive
Bad reputation
Energy and money to build power plant
Uranium mining causes damage to environment
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18
Q

Types of renewable energy sources

A 
Wind turbines
Tidal power
Solar power
Hydroelectric power
Biomass / biofuels
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19
Q

Advantages of renewable energy sources

A

Won’t run out

Sources are clean

20
Q

Disadvantages of renewable energy sources

A

Location of source and where nergy is needed
Lack of technology to capture energy efficiently
Energy intermittent
Expensive to set up
Impact on wildlife

21
Q

What is a composit material?

A

2 or more materials combined, these produce a material with enhanced properties

22
Q

What is microencapsulation?

A 
Solids, liquids or gases which are sealed in tiny microscopic capsules or bubbles. These can break with friction by the wearer to release different chemicals such as:
Thermochromis dyes
Antibacterial maferials
Pesticides
Perfumes
Pharmaceuticals
23
Q

What is Gore-tex?

A

Textile material with a special plastic membrane which contains lots of tiny breathable pores which can evaporate perspiration water proof and windproof (rainwear)

24
Q

What is kevlar?

A

Textile materials made from Aramides which are particularly tough modifies polyamide (Nylon) fibres. Kevlar fibres are woven into a fabric and then layered with resin.

25
Q

Properties of kevlar and end uses:

A

Lightweight, but incredibly strong
Resistant to chemicals and extreme heat
Durable and abrasion resistant

Bullet proof vests
Helmets
Face masks
Motor cycle clothing

26
Q

What is a microfiber?

A

An extremely fine synthetic fibre (polyester or nylon) which is one 1/5 the width of a human hair

27
Q

Properties of microfibres:

A

Creates an electrostatic charge that attracts particles of dust
Easy care
Fast drying

28
Q

What are conductive fabrics and threads?

A

Electrical circuits can be integrated into textile materials using metal fibres which conduct electricity such as carbon, silver and nickel. A circuit of metal stands and electronic components are woven or sewn into the material.

29
Q

End uses of conductive fabrics and threads:

A

Clothing with electronic sensors to monitor body temp and pulse
Military clorhing with comminucation, sat navigation or tracking devices.

30
Q

What is a modern material?

A

Materials that have been produced through the invention or discovery of new processes. A designer will make use of these to make new and improved products.

31
Q

Metal foam - properties and potential uses

A

Very lightweight
Hight compressive strength
Excellent energy = absorbing properties =reduces impact/absorb shock

  • cars
  • planes
  • joint replacements
  • building structures
32
Q

LCD (liquid crystal displays) - properties and potential uses

A

Opaque when an electrical current is applied to the liquid core

  • TVs
  • thermometers
  • clocks
33
Q

Titanium - properties and potential uses

A

Lightweight
High strength to weight ratio
Resistant to corrosion
Does not react with the human body

-hip replacements

34
Q

Graphene - properties and potential uses

A 
Very lightweight
Transparent
Flexible
Tough
Very good conductor of electricity
  • touch screen in devices
  • water filtration
  • electronic devices
  • medical sensors + drug delivery
  • energy storage + composites
35
Q

What is a smart material?

A

A material that reacts to environmental change, such as heat or light

36
Q

Stimulus = UV light, what is the smart material?

A

Photochromic pigments (colour change with UV livht)

37
Q

Stimulus = moisture, what is the smart material?

A

Hydochromic pigments (colour change with water)

38
Q

Stimulus = Temperature (heat), what is the smart material?

A

Shape memory alloys (return to original shape when heated)

Thermochromic pigments (colour change when heated)

39
Q

Stimulus = PH levels, what is the smart material?

A

Litmus paper (colour change depending on PH levels)

40
Q

Stimulus = stress, what is the smart material?

A

Piezoelectric matetial (create electricity when sibjectified to mechanical stress)

41
Q

What does GRP stand for?

A

Glass re-I forced plastic

42
Q

Properties of GRP

A

Lightweight
Good thermal insulation properties
Hight strength to weight ratio

43
Q

Uses of GRP

A 
Water tanks
Surfboards
Canoes
Small boat hulls
Bathtubs
44
Q

What does CRP stand for?

A

Carbon fibre re-inforced plastic

45
Q

Properties of CRP

A 
Exceptionally lightweight
Incredible tensile strength
Very strong
Best strength to weight ratio of all construction materials
Much more expensive than GRP
46
Q

Uses of CRP

A 
High end products
Competition bicycles
Motorbikes
Sports cars
Aeroplane parts

Textiles (6 decks)

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