Polypropylene
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Polypropylene is a semi-crystalline, thermoplastic engineering material with high toughness and good chemical resistance.
Key Features:
Tough
Very low water absorption
Resistant to dilute acids, cleaning agents, numerous solvents
Very good electrical insulation
Difficult to bond
Easily welded
Low density
Becomes brittle at low temperatures
Temperature Range:
-40ºC to +80ºC, +100ºC
Applications:
Chemical apparatus, water treatment components, seals, insulators, ventilation ducts, pallets, drip pans, crash doors and wall cladding
Polypropylene also offers good thermal and electrical insulation and is also resistant to many acid, alkalis and organic solvents making it an ideal choice for fabrication jobs in chemical and effluent treatment plants.
Availability:
Polypropylene Copolymer PPC
Offers slightly increased elongation at break compared with Homopolymer.
| Colour: |
Natural, black, white, grey and beige. Other colours available upon request. |
| Sheet size (mm): |
2440 x 1220, 2000 x 1000 |
| Thickness (mm): |
1 to 120. |
| Rod dia (mm): |
8 to 500. |
| Length (mm): |
2000. |
Polypropylene Homopolymer PPH
Homopolymer offers a higher rigidity and chemical stability than copolymer. It is easily machined and fabricated making it suitable for machined parts and rollers.
| Colours: |
Natural or beige. |
| Sheet size (mm): |
2000 x 1000. |
| Thickness (mm): |
1 up to 120. |
| Rod dia (mm): |
Up to 140. |
| Length (mm): |
2000. |
Technical Information:
Information to be used as a guide only. It corresponds with our current knowledge and indicates possible applications. We cannot guarantee suitability for a specific application. Unless otherwise stated these values represent averages taken from injection moulded samples.
| Properties |
Unit |
Test Method DIN ASTM |
Result |
| Mechanical |
- |
- |
- |
| Density |
g/cm³ |
53479 |
0.95 - 0.96 |
| Tensile strength at yield |
MPa |
53455 |
24-31 |
| Tensile strength at break |
MPa |
53455 |
36 |
| Elongation at Break |
% |
53455 |
400-800 |
| Modulus of elasticity in tension |
MPa |
53457 |
1000-1400 |
| Modulus of elasticity in flexure |
MPa |
53457 |
1000-1400 |
| Ball indentation hardness |
MPa |
53456 |
45-60 |
| Impact strength (Charpy) |
KJ/m² |
53453 |
no break |
| Creep rupture strength after 1000 hours with static load |
MPa |
- |
12.5 |
| Time yield limit for 1% elongation after 1000 hours |
MPa |
- |
3 |
| Coefficient of friction against hardened and ground steel p+0,05 N/mm2, v=0,6 m/s |
- |
- |
0.29 |
| Wear conditions as above |
µm/km |
- |
- |
| Thermal |
- |
- |
- |
| Crystalline melting point |
ºC |
53736 |
-128-133 |
| Glass transition temperature |
ºC |
53736 |
-95 |
| Heat distortion temperature method A |
ºC |
ISO 75 |
42-49 |
| Heat distortion temperature method B |
ºC |
ISO 75 |
70-85 |
| Max. service temperature short term |
ºC |
- |
120 |
| Max. service temperature long term |
ºC |
- |
90 |
| Coefficient of thermal conductivity |
W/(m K) |
- |
0.35-0.43 |
| Specific heat |
J/(g K) |
- |
1.7 - 2 |
| Coefficient of thermal expansion |
10-5/K |
- |
13 - 15 |
| Electrical |
- |
- |
- |
| Dielectric constant at 10 (5) Hz |
- |
53483 |
2.4 |
| Dielectric loss factor at 10(5) Hz |
- |
53483 |
0.0002 |
| Specific Volume Resistance |
Ωcm |
53482 |
>10 (16) |
| Surface Resistance |
O |
53482 |
>10 (14) |
| Dielectric strength 1mm |
kV/mm |
53481 |
>50 |
| Tracking resistance |
- |
53480 |
KA3c |
| Miscellaneous |
- |
- |
- |
| Moisture Absorption: Equilibrium in standard atmosphere (23ºC / 50% relative humidity) |
% |
53714 |
|
| Water absorption at saturation at 23ºC |
% |
53495 |
0.02 |
| Resistance to hot water, washing soda |
- |
- |
resistant |
| Flamability |
- |
UL 94 |
HB |
| Resistance to weathering |
- |
- |
Natural: not resistant
Black: resistance |
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