Zusammenfassung der Ressource
Tech Materials
- Plastics
- Thermosetting
- Melamine
- Properties: Heat resistant polymer
- Uses: Tableware, Electrical
installations, Synthetic resin paints,
decorative laminates, Worktops.
- AD: Easily coloured, Odour free,
Good resistance to solvents
- DIS: Limited resistance to
concentrated acids and alkalis
- COST: Expensive
- Polyester Resin
- Properties: Resin and hardener mixed
together, polymerises at room temp,
often reinforced with glass fibre.
- Uses: Laminate to form GRP Castings,
Encapsulations, Car bodies, Boats
- AD: Long lasting, Durable
- DIS: Requires special
precautions when processing
- COST: Cheap
- Epoxy
Resin
- Properties: A resin and a
hardener mixed together
to produce a casting.
- Uses: Castings, PCB, Surface
Coating, Araldite glue.
- AD: Very strong, Sets in 2 hours, Will
join different materials together.
- DIS: Difficult to apply because its so thick,
Must be used inn a well ventalated are
- COST: Expensive
- Urea formaldehyde
- Properties: ColourlessPolymer,
Coloured with artificial pigments
to produce different colours.
- Uses: Door & cupboard handles,
electrical switches, electrical fittings
- AD
- DIS
- COST: Cheap
- Thermoplastic
- Acrylic
- Uses: Display signs, Baths, Roofs
Lights, Machine guards,used in
school workshops
- AD: Highly
transparent, Light,
Weather resistant
- DIS: Toxic during manufacturing,
Not easily recyclable
- COST: Expensive
- Properties: Flexible,
resistant to shock, UV and
Chemical damage, Easily cut,
can transmit/filter UV light
- PVC
- Properties: Stiff, Hard wearing, plasticiser added
to make a softer, more rubbery material.
- Uses: Air & Water Pipes, Chemical tanks,
Shoe soles, Floor and Wall Coverings
- AD: Light, Easy to handle and install
- DIS: It releases toxins during
manufacture, decomposition in
landfills and if exposed to fire.
- COST: Cheap
- ABS
- Properties: Opaque, Strong
Resistant to heat and chemicals,
Durable, Easy to process
- Uses, Toys, Telephones, Kitchen appliances, LEGO, 3D Printing
- AD: Good impact and heat resistance,
- DIS: Poor weather ability, Poor solvent resistance
- COST: Cheap
- Nylon
- Properties: Hard, Durable, Solid
nylon has low friction qualities
Resilient
- Uses: Curtain rail fittings,
Combs, Hinges, Bearings,
Clothes, Gear wheels
- AD: Light, Strong, Easy to wash,
Natural lubricant qualities
- DIS: Poor resistance to sunlight, Heat sensitive
- COST: Varies with type
- Rigid
Polystyrene
- Properties: Easy to machine,
paint and glue. Strong, Stiff
- Uses: Computer keys, Packaging
Power tool housing,
- AD: Easily Shaped, Comes in
a wide range of forms
- DIS: Flammable, Weak,
environmental pollutant
- COST: Cheap
- Wood
- Hardwood
- Mahogany
- Properties: Reddish-brown
in colour, Easy to work with
- Uses: Indoor furniture,
Shop fittings, Bars, Veneers
- AD: Wide range of availability, Easy to work with
- DIS: Warps, Hardness varies
- COST: Expensive
- Beech
- Properties: Straight grain, Fine
Texture, Light in Colour, Can be Steam Bent
- Uses: Furniture, tool handles, Toys
- AD: Polishes well, Strong, Tough
- DIS: Not suitable for permanent outdoor use
- COST: Varies
- Oak
- Properties: Very strong, Light brown,
Open-Grained, Hard but easy to work with
- Uses: High quality furniture, Beams
used in buildings, Veneeres
- AD: durable, widely available
- DIS:Very heavy, may appear
outdated in a room due to
traditional look
- COST: Expensive
- Ash
- Properties: Strong, Durable, Flexible, Open
Grained, Easy to machine, Well finished
- Uses: Furniture, Handles of Tools,
Sports Goods, Construction, Ladders
- DIS: Not weather resistant as is prone to rotting
- COST: Expensive
- Softwood
- Pine
- Parana
- Properties: Hard, Straight-grained, Almost
knot free, Pale yellow with Red/Brown streaks
- Uses: High quality Pine
furniture and fittings e.g. Doors
- AD: Attractive grain, wide
range of availability
- DIS: Lacks toughness, tends to warp
- COST: Can be expensive
- Scots Pine (red
deal/wood)
- Properties: Straight-Grained, Knotty,
fairly strong, easy to work with.
- Uses: DIY Work, Constructional
work and Simple Joinery
- AD: Finishes well, Durable
- DIS: Knotty
- COST: Cheap
- Cedar
- Properties: Light, Knot free,
Reddish Brown, Weak, Naturally
oily, Easy to work with
- Uses: Outdoor uses e.g
Timber Cladding, Fencing
- AD: Knot free, Resistant to insect attacks
- DIS: Not that strong
- COST: More expensive
than some softwoods.
- Manufactured Boards
- MDF
- Properties: Smooth surface,
Easily Machined, Painted or
stained. Available in water or fire
resistant form, often veneered or
painted to improve appearance.
- Uses: Furniture and interior
- AD: Easy to cut, shape and Drill,
- DIS: Can be easily damaged,
can be harmful to health
when it being sanded or cut
- COST: Cheap
- Chipboard
- Properties: Made from chips
of wood glued together with
urea formaldehyde. Usually
Veneered with an attractive
hardwood or covered in
plastic laminate.
- Uses: Kitchen and bedroom
furniture, Shelving and
general DIY Work
- DIS:All except High Density tends to
soak up water and breakdown/swell
- COST: Cheap
- AD: Strong, Easy to use.
- Veneer
- Properties: Thin,Flexible
- Uses: Indoor and outdoor use. Is
stuck onto other manmade
products to improve aesthetics.
- AD
- DIS
- COST
- Metal
- Ferrous
- Mild Steel
- Cost: Cheap
- DIS: Weak, Cannot
be heat treated
- AD: Light, Affordable, Ductile
- Uses: Nuts, Bolts,
Screws, Stool legs,
Washing Machines
Car bodies.
- Properties: Common, Soft,
Strong, Rusts easily, Cannot be
hardened or tempered.
- Stainless
steel
- DIS: Very Expensive
- AD: Resistant to
rust and scratching
- Properties: Hard, Will not Rust
- Uses: Sinks, Kettles,
Medical Equipment, Cutlery
- Cost: Expensive
- Carbon
steel
- Properties: Strong, Difficult to Form, Weld
and Cut. Often hardened and tempered
using heat treatment.
- Uses: Nails and screws, Bicycle wheel
rims, metal chains wire ropes,
screwdriver blades, engine parts
- AD: Good wear resistance, affordable, ductile
- DIS: Low tensile strength
- Cost: Cheap
- Non-ferrous
- Aluminium
- Uses: Window frames,
Saucepans, Cooking Foil,
Airplanes
- Properties: Light, Soft, Easily shaped, silver
in colour, good conductor of heat and
electricity, corrosion resistant, polishes
well.
- AD: Abundant,good conducter
- DIS: Not very strong
- Cost Expensive
- Brass
- Cost Varies depending
on alloy properties.
- DIS: high maintenance
due to oxidation
- AD: High quality look
- Properties: Heavy, quite hard and
strong, Yellow in Colour,
Malleable, Ductile, Corrosion
Resistant
- Uses: Electrical Parts,
Door Handles, Bathroom
fittings, Accessories Instruments
- Copper
- Cost: Expensive
- DIS: Water acidity
sometimes effects the
use of copper pipes
- AD: Corrosion resistant, Light, Durable
- Uses: Water Pipes, Wires, Cisterns
- Properties: Tough, Easily Shaped and soldered,
relatively soft, malleable and ductile, Good
conductor of heat and electricity.