Complaint
PE
Polyethylene can be divided into high density polyethylene, low density polyethylene and linear low density polyethylene according to the polymerization method, molecular weight and chain structure.
LOW DENSITY POLYETHYLENE (LDPE), commonly known as high-pressure POLYETHYLENE, is mainly used in plastic bags and agricultural film due to its LOW DENSITY and the softest material.
HIGH DENSITY POLYETHYLENE (HDPE) is commonly known as low pressure POLYETHYLENE. Compared with LDPE and LLDPE, it has higher temperature resistance, oil resistance, steam permeability resistance and environmental stress cracking resistance. In addition, it has good electrical insulation, impact resistance and cold resistance, which is mainly used in blow molding and injection molding fields.
Linear Low Density Polyethylene (LLDPE) is a copolymer of ethylene and a small amount of advanced olefin in the presence of catalyst.LLDPE is similar to LDPE in appearance, with poor transparency and good surface gloss. LLDPE has the advantages of low temperature toughness, high modulus, bending resistance and stress cracking resistance, and good impact strength at low temperature.
Performance of the project | Test condition [condition] | The test method | The test data | The data unit | |
Basic performance | Density mass index | GB/T 1033 | 0.948±0.002 | g/cm3 | |
Density test results | GB/T 1033 | 0.948 | g/cm4 | ||
Melt flow rate mass index | 190ºC/5.0kg | GB/T 3682 | 0.23±0.03 | g/10min | |
Melt flow rate test results | GB/T 3682 | 0.25 | g/10min | ||
Melt flow rate mass index | 190ºC/21.6kg | GB/T 3682 | 6.2±1.5 | g/10min | |
Melt flow rate test results | GB/T 3682 | 6.4 | g/10min | ||
Mechanical properties of | Tensile yield strength quality index | GB/T 1040 | ≥23 | MPa | |
Test results of tensile yield strength | GB/T 1040 | 27.6 | MPa | ||
Elongation at break quality index | GB/T 1040 | ≥600 | % | ||
Test results of elongation at break | GB/T 1040 | 804 | % | ||
Quality index of impact strength of simply supported beam | GB/T 1043 | ≥25 | KJ/m2 | ||
Test results of impact strength of simply supported beam | GB/T 1043 | 26.7 | KJ/m2 | ||
Other properties | Volatile matter quality index | GB/T 15658 1 | ≤350 | mg/kg | |
Volatile test results | GB/T 15658 1 | Did not check out | mg/kg | ||
Biochemical property | Cleanliness (color granule) quality index | SH/T 1541 | ≤20 | grain/kg | |
Cleanliness (color particle) test results | SH/T 1541 | 0 | grain/kg | ||
Cleanliness (impurities) quality index | SH/T 1541 | ≤60 | grain/kg | ||
Cleanliness (impurities) test results | SH/T 1541 | 0 | grain/kg | ||
