PVC - Polyvinylchloride
A widely used material, its application is under regulation in many
countries for ecological reasons and it is often substituted by PP or
other polymers. It is chosen for its chemical resistance.
FEATURES
- high chemical resistance
- higher stiffness compared to polyolefins
- easy machinability on mechanical tools. It can be hot welded
- colour: grey, ivory, red
WEAK POINT
Compared to PP it has lower shock and temperature resistance. The high
gravity reduces its cheapness.
APPLICATION
- chemical: the main application of PVC is in the chemical
industry, thanks to its high resistance to acids and alkali and to its
rigidity. It is used for components such as valves, flanges, gears,
etc. in the chemical, galvanic and petrochemical industries
- food contact: it cannot be used in contact with food
- electrical: good dielectric properties and weather
resistance make it suitable for these applications
- mechanical: it is also used for mechanical components
in corrosive environments. Compared to polyolefins, it has a higher
tensile stress
Temperature resistance of the "anti-acid materials"