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Polypropylene (PP) resins are thermoplastic polymers, meaning they may be formed with heat and re-melted without losing their intrinsic characteristics. Thermoplastics differ in this way from thermosets, which undergo permanent change after hardening. Thermoplastics are generally recyclable for this reason. Other thermoplastics include polyethylene, polyvinyl chloride, polystyrene, polycarbonate, acrylic, acrylonitrile butadiene styrene, nylon, and polytetrafluoroethylene.
| Analyze the project | qualitative index | result | experimental method |
Granular appearance Colorparticles, individual/kg Large and small grains, g/kg | ≤10 ≤10 | 0 0 | SH/T 1541-2006 |
Melt mass flow rate(2.16kg),g/ 10min | 25-35 | 27 | Q/SY DS 0513 |
| Stretch-yield stress, MP a | ≥21.0 | 23.5 | Q/SY DS 0515 |
| Bending modulus,GPa | ≥1.0 | 1.401 | Q/SY DS 0516 |
| Izod Impact Strength of 23℃,J/m | ≥80 | 117 | Q/SY DS 0517 |
| Izod Impact Strength-20℃,J/m | actual measuremen | 75.5 | Q/SY DS 0517 |
| Yellow index | ≤4.0 | -4.6 | Q/SY DS 0514 |
| Grain ash,% | actual measurement | 0.0281 | GB/T 9345.1-2008 |
The main use of propylene can be divided into five categories: PP injection molding, PP drawing, PP fiber, PP film, PP pipe.
1. PP injection molding
PP plastic is mainly used in small household appliances, toys, washing machines, auto parts and so on.
2. PP wire drawing
Polypropylene wire drawing is mainly used in plastic woven products, the daily use of container bags, woven bags, food bags and transparent bags are PP wire drawing material products.
3. PP film
Polypropylene film is generally divided into BOPP film, CPP film, IPP film, PP film is mainly used in food packaging.
4. PP fibre
Polypropylene fiber is a kind of fiber product made from polypropylene by melt spinning. Mainly used in decoration, clothing and other fields, since the implementation of the two-child policy in 2011, downstream wet wipes, diapers and other maternal and infant products surge, domestic fiber material supply shortage phenomenon.
5. PP pipe
Due to the non-toxic and high temperature resistance of polypropylene, PP pipe material is mainly used in water supply and heating system, compared with PE pipe, PP pipe weight is light, convenient transportation, and environmental protection performance is better, can be recycled.
The packing is in 25kg plastic bags, which can be transported by rail or sea and stored in a dry warehouse.
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