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Chemically Resistant adhesives

Parker Chomerics PREMIER™ A240-ST EMI Shielding Plastic
Categories: Polymer; Thermoplastic; ABS Polymer; Polycarbonate/ABS Alloy, Carbon Fiber Filled; Polycarbonate (PC)

Material Notes: PREMIER™ is a versatile conductive thermoplastic for real world EMI shielding solutions. It is a blend of PC/ABS thermoplastic polymer alloys and conductive fillers engineered for stable electrical, mechanical, and physical performance. The conductive filler technology utilizes nickel plated carbon (Ni-C) fibers as the base filler. In the case of higher shielding versions, Nickel-Graphite (Ni-C) powder is blended with the fiber base to deliver enhanced performance. Combined with standard injection molding processes, PREMIER technology delivers evenly dispersed filler throughout a part’s geometry. PREMIER parts have no resin rich areas prone to EMI leaks, and no brittle, resin poor areas that can break under mechanical stress. PREMIER provides world class shielding effectiveness, requires no machining, plating, painting, vacuum coating, or other added processing steps. The elimination of secondary operations can reduce costs by up to 50% compared to die castings, bent formed metal, machined extrusions and plated.

Information provided by Chomerics

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.40 g/cc1.40 g/ccASTM D3763
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength at Break 91.0 MPa13200 psiASTM D638
Elongation at Break 0.50 %0.50 %ASTM D638
Tensile Modulus 15.6 GPa2260 ksiASTM D638
Flexural Strength 152 MPa22000 psiASTM D790
Flexural Modulus 11.9 GPa1730 ksiASTM D790
Izod Impact, Notched 1.20 J/cm2.25 ft-lb/inASTM D412
Izod Impact, Unnotched 2.34 J/cm4.38 ft-lb/inASTM D412
 
Electrical PropertiesMetricEnglishComments
Surface Resistance 0.030 ohm0.030 ohm
Surface Resistivity per Square 0.20 ohm0.20 ohm
 
Thermal PropertiesMetricEnglishComments
CTE, linear 13.0 µm/m-°C7.22 µin/in-°FASTM D696
Thermal Conductivity 0.700 W/m-K4.86 BTU-in/hr-ft²-°FASTM D5470
Deflection Temperature at 1.8 MPa (264 psi) 119 °C246 °FASTM D648
UL RTI, Mechanical without Impact 105 °C221 °FUl746B
 
Processing PropertiesMetricEnglishComments
Rear Barrel Temperature 260 - 275 °C500 - 527 °F
Middle Barrel Temperature 260 - 275 °C500 - 527 °F
Front Barrel Temperature 260 - 275 °C500 - 527 °F
Nozzle Temperature 260 - 275 °C500 - 527 °F
Melt Temperature 260 - 270 °C500 - 518 °F
Mold Temperature 41.0 - 49.0 °C106 - 120 °F
Dry Time  3 - 4 hour
@Temperature 95.0 - 100 °C
3 - 4 hour
@Temperature 203 - 212 °F
Typical
 8 hour
@Temperature 95.0 - 100 °C
8 hour
@Temperature 203 - 212 °F
Maximum
Moisture Content 0.040 %0.040 %Suggested Maximum
Back Pressure >= 2.07 MPa>= 300 psi
Clamp Pressure 40.0 - 70.0 MPa5800 - 10200 psi[MPa/cm2]
Screw Speed 95 - 130 rpm
@Diameter 25.0 mm
95 - 130 rpm
@Diameter 0.984 in
760 - 1000 cm/min

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PCHOME333 / 131043

Chemically Resistant adhesives

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