Polypropylene Key Properties
Polypropylene is available in homopolymer, co-polymer, heat stabilized grades and other formulations.
Polypropylene provides excellent resistance to organic solvents, degreasing agents and electrolytic attack. It has a lower impact strength, but its working temperatures and tensile strength are superior to low or high density polyethylene. It is light in weight, resistant to staining, and has a low moisture absorption rate. This is a tough, heat-resistant, semi-rigid material, ideal for the transfer of hot liquids or gases. It is recommended for vacuum systems and where higher heats and pressures are encountered. It has excellent resistance to acids and alkalines, but poor resistance to aromatic, aliphatic and chlorinated solvents.
Polypropylene Homopolymer - resists most acids, alkalis and solvents. It is the most widely used Polypropylene grade and is noted a high strength-to-weight ratio, excellent chemical resistance and high performance in thermoforming and corrosion environments.
Polypropylene Co-Polymer - is a copolymer that combines ethylene, a second monomer, during the polymerization process which results in improved impact strength over homopolymer. Co-Polymer offers higher impact strength, good chemical resistance and is more pliable than hompolymer.
Heat Stabilized Polypropylene - grades are available which offer improved thermal performance and is often used in medical autoclave applications.
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- High compressive strength
| - Excellent dielectric properties
| - Resists most alkalis and acids
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