Polymer Enhancement Flashcards
Lubricants
Reduces the viscosity of the molten polymer, making it less sticky and allowing more intricate shapes to be formed. Lubricants also allow the moulding temperature to be lowered saving energy.
Thermal antioxidants
Prevent the polymer oxidising or discolouring due to excessive heat during processing
Pigments
Tiny particles that are mixed into the polymer in its molten state to give colour to the final processed product
Antistatics
Reduce the likelihood of the polymer building up static charge
Flame retardants
Reduce the likelihood of combustion or the spread of fire
Plasticisers
Allow plastics to become less hard and brittle at normal temperature use. They can also also help in processing because they allow polymers to be easily formed at higher temperatures.
Fillers
Sawdust and wood flower provide bulk to the product meaning that less polymer is required.
Biodegradable plasticisers
Please make the polymer more flexible softer and easier to breakdown which means faster degradation time
Antioxidants
Reduce the mental deterioration of the polymer from exposure to oxygen in the air.
Also help prevent increased brittleness surface cracks and pigment discolouration
Uv stabilisers
Prevent the polymer chains being broken down by sunlight. UV attack causes colour loss and brittleness.