Stock Forms Types Examples Biopolymers Polymer Processes
Name 3 stock forms of polymers.
Granules
Sheet
Film
Rods
Foam
Powder
What does self-finishing mean?
Self-finishing refers to a material or product that does not require any additional finishing processes after production.
What is a thermoplastic?
A type of polymer that becomes soft and moldable when heated and hardens when cooled, allowing it to be reshaped multiple times.
What is a thermoset polymer?
Material that, once set, cannot be remolded by heat. It undergoes a chemical change during the curing process, forming a rigid and durable structure.
What is an elastomer?
A material at room temperature, that can be deformed under pressure and return to its original shape.
Name 4 examples of thermoplastics.
Low-density Polyethylene. (LDPE)
High-density Polyethylene. (HDPE)
Polypropylene (PP)
High-impact polystyrene (HIPS)
Acrylonitrile Butadiene Styrene (ABS)
Polymethylmethacrylate (PMMA)
Nylon
Rigid Polyvinyl Chloride (uPVC)
Flexible Polyvinyl Chloride (PVC)
Name 2 examples of thermoset polyers.
Urea Formaldehyde (UF).
Melamine Formaldehyde (MF)
Polyester Resin
Epoxy Resin
Name 3 examples of elastomers.
Natural Rubber
Butadiene Rubber (BR)
Neoprene
Silicone
What does biodegradable mean?
A material can break down using natural processes over a certain time period.
Photodegradable
A product can degrade when exposed to UV light, breaking the bonds between particles.
Oxydegradable
A product can breakdown when exposed to oxygen breaking the bonds between molecules.
Hydrodegradable
A product can break down when exposed to water, breaking the molecules between molecules.
Name 3 examples of biodegradable polymers.
Corn starch polymer
Potatopak
Biopol
Polylactic Acid (PLA)
Vacuum Forming
Thermoforming
Calendering
Line bending
Laminating
Injection Moulding
Blow moulding
Rotational Moulding
Extrusion
Compression Moulding