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Products

Makrolon? 1881

Makrolon? 1881

Manufacturer: Covestro
Produced At: Europe / China
Product Category: Polycarbonate（PC）
Product No: Makrolon 1881 
Product Quantity: 25KG / BAG
Product Features: Good Mold Release，Impact Modified，Low Viscosity，Ultrasonic Weldable

Makrolon? 1881

Polycarbonate
Product Description:
MVR (300 °C/1.2 kg) 19 cm3/10 min; impact modified; improved ultrasonic weldability; low viscosity; UV stabilized; easy release; injection molding - melt temperature 280 - 320 °C; available in opaque colors only
Additive 
  • Impact Modifier，UV Stabilizer 
Features 
  • Good Mold Release，Impact Modified，Low Viscosity，Ultrasonic Weldable 
RoHS Compliance 

  • RoHS Compliant

Appearance 
  • Colors Available，Opaque 
Processing Method 

  • Injection Molding

Physical
Nominal Value
Unit
Test Method
Density (73°F)
1.20
g/cm3
ISO 1183
Apparent (Bulk) Density 2
0.64
g/cm3
ISO 60
Melt Mass-Flow Rate (MFR) (300°C/1.2 kg)
20
g/10 min
ISO 1133
Melt Volume-Flow Rate (MVR) (300°C/1.2 kg)
1.16
in3/10min
ISO 1133
Molding Shrinkage



Across Flow
0.50 to 0.70
%
ISO 2577
Flow
0.50 to 0.70
%
ISO 2577
Across Flow : 0.0787 in 3
0.70
%
ISO 294-4
Flow : 0.0787 in 3
0.65
%
ISO 294-4
Water Absorption


ISO 62
Saturation, 73°F
0.30
%

Equilibrium, 73°F, 50% RH
0.12
%

Hardness
Nominal Value
Unit
Test Method
Ball Indentation Hardness
16400
psi
ISO 2039-1
Mechanical
Nominal Value
Unit
Test Method
Tensile Modulus (73°F)
334000
psi
ISO 527-2/1
Tensile Stress


ISO 527-2/50
Yield, 73°F
8700
psi

Break, 73°F
8700
psi

Tensile Strain


ISO 527-2/50
Yield, 73°F
5.8
%

Break, 73°F
110
%

Nominal Tensile Strain at Break (73°F)
> 50
%
ISO 527-2/50
Flexural Modulus 4 (73°F)
334000
psi
ISO 178
Flexural Stress 4


ISO 178
73°F
13500
psi

3.5% Strain, 73°F
10200
psi

Flexural Strain at Flexural Strength 5 (73°F)
6.8
%
ISO 178
Impact
Nominal Value
Unit
Test Method
Charpy Notched Impact Strength 6


ISO 7391
-22°F, Complete Break
6.7
ft·lb/in2

73°F, Partial Break
29
ft·lb/in2

Charpy Unnotched Impact Strength


ISO 179/1eU
-76°F
No Break


-22°F
No Break


73°F
No Break


Notched Izod Impact Strength 7


ISO 180/A
-22°F, Complete Break
6.7
ft·lb/in2

73°F, Partial Break
33
ft·lb/in2

Multi-Axial Instrumented Impact Energy


ISO 6603-2
-22°F
40.6
ft·lb

73°F
36.9
ft·lb

Multi-Axial Instrumented Impact Peak Force


ISO 6603-2
-22°F
1300
lbf

73°F
1100
lbf

Thermal
Nominal Value
Unit
Test Method
Heat Deflection Temperature



66 psi, Unannealed
277
°F
ISO 75-2/B
264 psi, Unannealed
253
°F
ISO 75-2/A
Vicat Softening Temperature



--
291
°F
ISO 306/B50
--
293
°F
ISO 306/B120
Ball Pressure Test (273°F)
Pass

IEC 60695-10-2
CLTE


ISO 11359-2
Flow : 73 to 131°F
3.6E-5
in/in/°F

Transverse : 73 to 131°F
3.6E-5
in/in/°F

Thermal Conductivity 8 (73°F)
1.4
Btu·in/hr/ft2/°F
ISO 8302


Products are widely used in plastic modification, automotive, construction, electrical and electronic, industrial, daily necessities and other fields


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