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Product Design > Polymers > Flashcards

Polymers Flashcards

1
Q

What are the properties of Urea Formaldehyde?

A
  1. White plastic
  2. Thermosetting
  3. Good insulator so wont short circuit good for safety
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2
Q

What is Urea Formaldehyde used for?

A
  1. Adhesives for regenerated timbers
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3
Q

What are some properties of acrylic?

A
  1. High strength,
  2. Optical clarity
  3. Bonds well with adhesives and solvents,
  4. Easy to thermoform
  5. High resistance to weathering
  6. High chemical resistance
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4
Q

What are some properties of cellophane?

A
  1. Transparent,
  2. Odour-resistant,
  3. Tough,
  4. Grease-proof,
  5. Impermeable to gases
  6. available in many colours,
  7. Can be coated in polyvinylidene chloride to be made moisture-proof and heat-sealing.
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5
Q

What are properties of epoxy resin?

A
  1. High chemical resistance
  2. high heat resistance
  3. Adhesion
  4. High tensile, compression, and bend strengths
  5. High electrical insulation
  6. Corrosion resistance
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6
Q

What are some uses of epoxy resins?

A
  1. Laminating in construction
  2. Paints and coatings (primers/seals)
  3. Forming (moulds, casting, fixtures)
  4. Wind turbine blades
  5. Electrical equipment
  6. Aerospace engineering for structural glue
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7
Q

What are the properties of kevlar?

A
  1. High tensile strength,
  2. High toughness,
  3. Poor compressive strength
  4. Low density
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8
Q

What are properties of polyamide (nylon)?

A
  1. Elastic
  2. High strength and hardness
  3. High chemical resistance
  4. Durable
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9
Q

What are some uses of polyamide?

A
  1. Textiles and clothing
  2. Fishing line
  3. Guitar strings and picks
  4. Electrical connectors
  5. Medical implants
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10
Q

What are some properties of polyester?

A
  1. Durable
  2. Strong,
  3. Moisture-resistant and quick drying
  4. It retains its shape
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11
Q

What are some uses of polyester?

A
  1. Air filters
  2. Carpets
  3. Ropes
  4. Films
  5. Fishing nets
  6. Bottles
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12
Q

What are some uses of PTFE (Teflon)

A
  1. Non stick cookware

2. Medical uses

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13
Q

What are some properties of PTFE?

A
  1. Chemical resistance
  2. Heat resistance
  3. Great insulators
  4. Resistance to weathering
  5. Low coefficient of friction
  6. Flexibility
  7. Food grades available
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14
Q

What are some properties of Polypropylene?

A
  1. Translucent
  2. Good chemical resistance
  3. Tough
  4. Good heat resistance
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15
Q

What are some uses of polypropylene (PP)?

A
  1. Plastic packaging (most common)
  2. Machinery parts
  3. Fibres and textiles
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16
Q

What are some properties of PVC?

A
  1. High impact strength
  2. Easy to extrude or mould
  3. Low temperature resistance
  4. Low resistant to chemicals
  5. Low ultimate tensile strength

Product Design (11 decks)

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