Introduction
Polypropylene is a synthetic resin made by polymerization of propylene (CH3-CH=CH2) with H2 as the molecular weight modifier. There are three stereomers of PP-isotactic, atactic and syndiotactic.
PP contains no polar groups and has excellent electrical insulation properties. Its water absorption rate is less than 0.01%, PP is a semi-crystalline polymer with good chemical stability. It is stable to most chemical except strong oxidizers. Inorganic acid, alkali and salt solutions have almost no damaging effect on PP.
PP has good heat resistance and low density. Its melting point is at around 165℃. It has high tensile strength, surface hardnessand good environmental stress crack resistance. It can withstand 120℃ continuously.
Both Clustering
| Grades | S1003 | HP550J | S2040 | HP500N | HP500P | HA612M | HP462R | |
| (MFR2.16kg) | g/10min | 3 | 3 | 37 | 12 | 17 | 8 | 26 |
| Tensile strength at yield | Mpa≥ | 30 | 29 | 29 | 30 | 29 | 28 | 29 |
| Flexural modxilus | Mpa≥ | 1000 | 1200 | 1000 | 1200 | 1200 | 1200 | 1000 |
| Charpy impact strength(23℃) | KJ/m2≥ | 2 | 3 | 1 | 2 | 1.7 | 1 | |
| Isotactic index | % | 95.0～99.0 | 95.0～99.0 | - | 95.0～99.0 | 95.0～99.0 | 95.0～99.0 | 95.0～99.0 |
| Ash | %≤ | - | - | 0.022 | - | - | - | - |
| Applications | Extruded filaments, Carpet backing cloth, Color band cloth, Polypropylene(PP) knitted bag | Ultra-fine staple fibers, Non-woven febrics | Injection Molding | Injection Molding | CPP | Ultra-fine Staple Fibers, BCF Filament | ||
Random Copolymerization
| Grades | T4401 | K4912 | K4826 | RP220M | |
| (MFR2.16kg) | g/10min | 0.275 | 12 | 25 | 8 |
| Tensile strength at yield | MPa≥ | 20 | 26 | 24 | 19 |
| Stretching broken column nominal strain | %≥ | 300 | - | - | - |
| Flexural modulus | MPa≥ | 620 | 900 | 800 | 600 |
| Charpy impact strength(23℃) | KJ/m2≥ | 3.5 | 3.5 | 3 | 2 |
| Heat deflection temperature(0.45MPa) | ℃≥ | 60 | - | - | |
| Applications | Cold water pipes | Transparent material | Transparent material | Binary Heat Seal Layer | |
Block Copolymers
| Grades | K8003 | K8009 | EP300H | K9928H | |
| (MFR2.16kg) | g/10min | 2.5 | 10 | 1.8 | 30 |
| Tensile strength at yield | MPa≥ | 22 | 17 | 20 | 21 |
| Flexural modulus | MPa≥ | 1000 | 900 | 850 | 1000 |
| Charpy impact strength(23℃) | KJ/㎡≥ | 9 | 8 | ||
| Charpy impact strength(-20℃) | KJ/㎡≥ | 5 | 6 | ||
| Applications | Toys, Shells of storage batteries, Household appliances, Automotive parts | Household Appliances,Packages | High-impact, Devices, Automotive Partsmachine barrel and parts | High-impact devices, Automotive and Household appliances parts, Washing machine barrel and parts | |
