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easier textiles flashcards > composite and smart materials and modern materials > Flashcards

composite and smart materials and modern materials Flashcards

1
Q

what is a smart material?

A

a material that reacts to environmental changes

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2
Q

what 5 things can a smart material react to?

A

heat, light, stress, moisture, or PH

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3
Q

what are shape memory alloys?

A

alloys that will return to their original shape when heated

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4
Q

what is goretex?

A

laminated membrane

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5
Q

what are the properties of gore-tex?

A

-breathable
-lightweight
-waterproof

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6
Q

what is gore-tex used for?

A

used on jackets and shoes

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7
Q

how can smart materials be incorporated?

A

by embroidering or priming them on

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8
Q

what are properties of electro-textiles?

A

-wearable
-soft, washable fabric with optical and electrical fibres in it

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9
Q

what are memory textiles?

A

shape memory polymers

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10
Q

what are thermochromatic alloys?

A

pigments that change colour depending on temp

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11
Q

what are some uses for thermochromatic alloys?

A

used for novelty products and medical uses ( like wound dressings)

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12
Q

what are photochromic alloys?

A

pigments that change colour depending on how much light is present

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13
Q

what can photochromic alloys be used for?

A

novelty products to measure sen exposure

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14
Q

what is a composite material?

A

a material made up of two or more materials and is designed to enhance properties

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15
Q

what are technical textiles?

A

textiles manufactured for function rather than aesthetic

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16
Q

what are conductive fabrics?

A

fabrics that have conductive fibres and can allow electrical currents to pass through them

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17
Q

what do fire-resistant materials use to stay fire resistant?

A

meta-aramid

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18
Q

what does CRP stand for?

A

carbon reinforced plastic

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19
Q

what are the properties of CRP?

A

-lightweight
-high strength to weight ratio
-rigid
-tough

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20
Q

how are composite materials formed?

A

by combining two or more materials that have different properties

21
Q

what does GRP stand for?

A

glass reinforced plastic

22
Q

what are properties of GRP?

A

strong
light
mouldable

23
Q

what are nano-fibres?

A

tiny molecules (smaller than 100 nanometers) that are added to fibres. they can be used to make the fabric repel water

24
Q

what are microfibres?

A

polyester or nylon microfibres that can be blended with synthetic or natural fibres

25
Q

what can microfibres be used for?

A

outdoor and sportswear

26
Q

what are the 4 properties of microfibres?

A

-durable
-crease resistant
-easy to care for
-breathable

27
Q

what is GRP?

A

a mixture of glass fibre and thermosetting plastic

28
Q

what is CRP a mixture of?

A

carbon fibres and thermosetting plastic

29
Q

what is graphene?

A

a thin layer of graphite

30
Q

what can graphene be used for?

A

aeroplanes and sports rackets

31
Q

what are the 6 properties of graphene?

A

-clear
-flexible
-stretchable
-strong
-lightweight
-imperable

32
Q

what are nano materials?

A

tiny particles woven into fabrics to solve several issues (e.g teflon to keep school uniforms clean)

33
Q

what is kelvar?

A

synthetic fibre which can be woven to create super strength and lightweight fabric.

34
Q

what can kevlar be used for?

A

used in bullet proof vests

35
Q

what is normex?

A

fire resistant fabric with resistance built into the fibres

36
Q

what are some uses of normex?

A

used in fire-fighter uniforms

37
Q

what is liquid crystal display? (LCD)

A

flat screen display which uses liquid crystals to create the shape formed by an image on a screen and it is used in calculators, and flat screen TVs

38
Q

what are the properties of LCD?

A

-flexible
-high definition
-energy efficient

39
Q

what are the 5 modern materials?

A

-kevlar
-normex
-LCD
-graphene
-nano materials

40
Q

how are kevlar fibres arranged?

A

in layers

41
Q

what is an example of a technical textile?

A

kevlar

42
Q

what are some uses for nanomaterials?

A

coating glass and fabric- nanomaterials can repel dirt or water which gives them ‘self cleaning’ properties

43
Q

what are the properties of titanium?

A

-high strength to weight ratio
-resistant to corrosion

-used in medicine like replacing hip joints and surgical instruments and is also used in sports equipment

44
Q

what are metal foams?

A

metal structures made from allumininium and titanium

45
Q

what are the properties of metal foams?

A

-strong
-lightweight
-conduct heat and electricity
-recyclable

they are used for soundproofing in cars and crash protection safety features

46
Q

what are constarch polymers?

A

natural organic polymers that come from vegetables

they are renewable and biodegradable and are used in things like disposable cutlery

47
Q

what is PTFE?

A

non stick coating which is applied to surfaces to make them slippery like kitchen utensils

48
Q

why is plating done?

A

to prevent corrossion

easier textiles flashcards (32 decks)

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