1.2 Classifications Of Thermoplastics And Thermosettin Polymers

Question 1

Thermoplastics- uses, properties and uses

Answer 1

Low densitiy polyethylene (LDPE)- very tough, good chemical resistant, weatherproof
Uses= toys, carrier bags, bin liners , cling film

High density polyethylene (HDPE) - weather proof, tough, god chemical reistance
Uses= long life carrier bags, buckets, bowls, toys

Polyethylene (PP) - translucence, good chemical resistance, tough
Uses= rope, food containers, medical equipment

Question 2

2 Thermoplastics - examples, properties and uses

Answer 2

Nylon- tough, corrosion resistance, good temperature reistance,
Uses= bearings, curtain rales, cable ties

Flexible polyvinyl chloride (PVC)- can be translucent, tough, flexible, good weathering resistance
Uses= hose pipes, seat coverings, medical grade tubing

Question 3

Thermoset polymers- examples, properties and uses

Answer 3

Urea formaldehyde (UF)- hard, heat resistant, good electrical insulator, brittle
Uses- electrical fittings, adhesives

Polyester resin- rigid, heat resistant, chemical resistant, brittle
Uses= castings, car parts, chair seats

Epoxy reisn- rigid, clear, hard , tough, chemical resistant
Uses= surface coatings, electrical components