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PP Yanshan Petrochemical k1001 ultra-low melt index 1 homopolymer plastic sheet pipe grade
injection molding PP raw material
1. Drying: drying is not required if the storage is appropriate.
2. Melting temperature: the melting point of PP is 160-175 ℃, and the decomposition temperature is 350 ℃, but the temperature setting during injection processing cannot exceed 275 ℃. The temperature of the melting section should preferably be 240 ℃.
3. Mold temperature: the mold temperature is 50-90 ℃. For those with high size requirements, use high mold temperature. The core temperature is more than 5 ℃ lower than the cavity temperature.
4. Injection pressure: higher injection pressure (1500-1800bar) and pressure holding pressure (about 80% of the injection pressure) are used. Turn to pressure maintaining at about 95% of the full stroke, and use a longer pressure maintaining time.
5. Injection speed: In order to reduce internal stress and deformation, high-speed injection should be selected, but some grades of PP and mold are not applicable (bubbles and air wrinkles). If there are light and dark stripes diffused by the gate on the surface with patterns, low-speed injection and higher mold temperature shall be used.
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Model
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ZJ-PP023
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Brand Name
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YanShan Chemical
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Country Of Origin
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China
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Exterior
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Transparent Granules
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Texture Of Wood
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PP |
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Item
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Test data
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Units
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Test method
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Basic performance
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density
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0.905
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g/cm
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ASTM D-1505
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Melt flow rate
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1
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g/10min
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GB 3682
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Mechanical properties
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Cantilever beam impact strength (23°C)
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30
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J/m
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ASTM D-256
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Tensile yield strength
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700
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%
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GB 1040
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Rockwell hardness
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99
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R
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GB 9342
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Thermal performance
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Load heat deflection temperature
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100
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℃
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ASTM D-648
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other properties
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Yellow index
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2
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%
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GB 2049
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Main Product:
GPPS Resin,
HIPS Resin,
ABS Resin,
PP Resin ,
HDPE Resin,
PC Resin
