PP Black

Polypropylene (PP) - This polyolefin is readily formed by polymerizing propylene with suitable catalysts, generally aluminum alkyl and titanium tetrachloride. Polypropylene properties vary according to molecular weight, method of production, and the copolymers involved. Generally polypropylene has demonstrated certain advantages in improved strength, stiffness and higher temperature capability over polyethylene. Polypropylene has been very successfully applied to the forming of fibers due to its good specific strength which is why it is the single largest use of polypropylene. Polypropylene also happens to be one of the lightest plastics available with a density of 0.905 g/cm².

Polypropylene (PP) was discovered in 1954 and grew a strong popularity very quickly. Because of extensive research, five main variations of Polypropylene have emerged as: homopolymers, impact (block) copolymers, random copolymers, rubber modified blends, and specialty copolymers.

Features

Homopolymers , Food Contact Acceptable , Good Process ability , Copolymer , Good Impact Resistance , High Flow , Good Stiffness , High Impact Resistance , High Stiffness, Chemically Coupled ,

Automotive Applications, Household Goods, Containers, Soft plastic Appliances, Film Carpet sheet, Packaging, Electrical/Electronic Applications, Automotive Interior Parts, Industrial Applications, and General Purpose

Disadvantages

- Degraded by UV

- Flammable, but retarded grades available

- Attacked by chlorinated solvents and aromatics

- Difficult to bond

- Several metals accelerate oxidative degrading

- Low temperature impact strength is poor

Applications

Product DescriptionThis data represents typical values that have been calculated from all products classified as: Generic PP Alloy

This information is provided for comparative purposes only.General  Material Status  Commercial: ActiveAvailability Physical Nominal Value Unit Test MethodSpecific Gravity 0,892 to 1,06   ASTM D792Mechanical Nominal Value Unit Test MethodFlexural Modulus (73°F) 25500 to 327000 psi ASTM D790Coefficient of Friction 0,25 to 0,40   ASTM D1894Films Nominal Value Unit Test MethodFilm Thickness - Tested 60 to 200 mil  Secant Modulus     ASTM D882MD 362000 to 435000 psi  TD 304000 to 522000 psi  Tensile Strength     ASTM D882MD : Yield 24700 to 34700 psi  TD : Yield 27400 to 30500 psi  Tensile Elongation     ASTM D882MD : Break 89 to 120 %  

TD : Break 80 to 130 %  Seal Strength 0,94 lbf/in ASTM F88Seal Initiation Temperature 223 to 269 °F  Oxygen Permeability (73°F) 0,39 to 100 cm³·mil/100in²/atm/24 hr ASTM D3985Water Vapor Transmission Rate

0,050 to 0,65 g/100 in²/24 hr ASTM F1249

Blocking Load 6,0 g ASTM D3354Optical Nominal Value Unit Test MethodGloss 95 to 140   ASTM D2457Haze 1,3 to 2,6 % ASTM D1003Notes1Typical properties: these are not to be construed as specifications.

Product DescriptionThis data represents typical values that have been calculated from all products classified as: Generic PP Copolymer - Mineral

This information is provided for comparative purposes only.General  Material Status  Commercial: ActiveFiller / Reinforcement  MineralPhysical Nominal Value Unit Test MethodSpecific Gravity      -- 0.962 to 2.11   ASTM D79273°F 0.975 to 1.17 g/cm³ ISO 1183Melt Mass-Flow Rate (MFR)      230°C/2.16 kg 4.7 to 35 g/10 min ASTM D1238230°C/2.16 kg 0.70 to 28 g/10 min ISO 1133Melt Volume-Flow Rate (MVR) (230°C/2.16 kg)

0.284 to 1.12 in³/10min ISO 1133

Molding Shrinkage      Flow : 73°F 0.0010 to 0.012 in/in ASTM D95573°F 0.81 to 1.2 % ISO 294-4Water Absorption (73°F, 24 hr) 0.020 to 0.050 % ISO 62Mechanical Nominal Value Unit Test MethodTensile Modulus      73°F 145000 to 447000 psi ASTM D63873°F 179000 to 379000 psi ISO 527-2Tensile Strength      Yield, 73°F 1450 to 4450 psi ASTM D638Yield, 73°F 2470 to 3990 psi ISO 527-2Break, 73°F 2470 to 6530 psi ASTM D638Break, 73°F 2100 to 3630 psi ISO 527-273°F 2450 to 3530 psi ASTM D63873°F 2880 to 4350 psi ISO 527-2Tensile Elongation      Yield, 73°F 3.0 to 5.0 % ASTM D638Yield, 73°F 2.8 to 8.1 % ISO 527-2

Break, 73°F 2.3 to 200 % ASTM D638Break, 73°F 2.5 to 100 % ISO 527-2Flexural Modulus      73°F 116000 to 509000 psi ASTM D79073°F 183000 to 365000 psi ISO 178Flexural Strength      73°F 2900 to 7600 psi ASTM D79073°F 2890 to 7320 psi ISO 178Impact Nominal Value Unit Test MethodCharpy Notched Impact Strength (73°F) 1.1 to 12 ft·lb/in² ISO 179Charpy Unnotched Impact Strength (73°F) 18 to 46 ft·lb/in² ISO 179Notched Izod Impact      73°F 0.56 to 4.7 ft·lb/in ASTM D25673°F 1.8 to 22 ft·lb/in² ISO 180Unnotched Izod Impact Strength (73°F) 8.6 to 38 ft·lb/in² ISO 180Hardness Nominal Value Unit Test MethodRockwell Hardness      73°F 40 to 90   ASTM D78573°F 70 to 76   ISO 2039-2Shore Hardness (73°F) 59 to 71   ISO 868Ball Indentation Hardness 7250 to 10400 psi ISO 2039-1Thermal Nominal Value Unit Test MethodDeflection Temperature Under Load      66 psi, Unannealed 219 to 308 °F ASTM D64866 psi, Unannealed 162 to 259 °F ISO 75-2/B264 psi, Unannealed 131 to 159 °F ASTM D648264 psi, Unannealed 119 to 150 °F ISO 75-2/AVicat Softening Temperature      -- 122 to 287 °F ASTM D1525-- 118 to 306 °F ISO 306Melting Temperature (DSC) 329 °F ISO 3146CLTE - Flow      -- 0.000028 to

0.000040in/in/°F ASTM D696

-- 0.000026 to 0.000044

in/in/°F ISO 11359-2

Electrical Nominal Value Unit Test MethodSurface Resistivity 7.5E+13 to 1.0E+15 ohm IEC 60093Volume Resistivity (73°F) 1.0E+13 to 1.0E+15 ohm·cm IEC 60093Comparative Tracking Index 595 to 600 V IEC 60112Flammability Nominal Value Unit Test MethodGlow Wire Flammability Index 1560 to 1760 °F IEC 60695-2-

12Glow Wire Ignition Temperature 1020 to 1390 °F IEC 60695-2-

13Injection Nominal Value Unit  Drying Temperature 176 to 190 °F  Drying Time 3.0 hr  Rear Temperature 401 to 410 °F  Middle Temperature 408 to 438 °F  Front Temperature 408 to 457 °F  

Processing (Melt) Temp 409 to 473 °F  Mold Temperature 104 to 141 °F  Injection Pressure 12700 to 14500 psi  Holding Pressure 7610 to 7670 psi  Back Pressure 43.5 to 76.1 psi  Screw Speed 50 to 75 rpm  Clamp Tonnage 3.3 tons/in²  Injection NotesThis data represents typical values that have been calculated from all products classified as: Generic PP Copolymer - Mineral

This information is provided for comparative purposes only.Notes1Typical properties: these are not to be construed as specifications.