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Parylene N 聚对二甲苯 (PPX)

Parylene N 聚对二甲苯 (PPX)

2023-01-26

Parylene N 聚对二甲苯 (PPX) 
Polyparaxylylene
Product Description
Parylene is the name for members of a unique polymer series. The basic member of the series, Parylene N, is poly(para-Xylylene), a completely linear, highly crystalline material. Parylene N is a primary dielectric, exhibiting a very low dissipation factor, high dielectric strength, and a low dielectric constant invariant with frequency. The crevice-penetrating ability of Parylene N is second only to that of Parylene HT®.
General
UL Yellow Card 2  E358476-101637285
Features  Biocompatible Highly Crystalline Radiation (Gamma) Resistant
Good Chemical Resistance Linear Polymer Structure
Uses  Aerospace Applications Electrical/Electronic Applications Printed Circuit Boards
Automotive Applications Medical/Healthcare Applications
Coating Applications Military Applications
Agency Ratings  ISO 10993 MIL I-46058C USP Class VI
RoHS Compliance  RoHS Compliant
Appearance  Clear/Transparent Colorless

Physical Nominal Value Unit Test Method
Density 1.10 to 1.12 g/cm³ ASTM D1505
Water Absorption (24 hr) < 0.10 % ASTM D570
Hardness Nominal Value Unit Test Method
Rockwell Hardness (R-Scale) 85   ASTM D785
Mechanical Nominal Value Unit Test Method
Coefficient of Friction     ASTM D1894
Dynamic 0.25    
Static 0.25    
Films Nominal Value Unit Test Method
Secant Modulus - MD  2410 MPa ASTM D882
Tensile Strength - MD      ASTM D882
Yield 42.1 MPa  
Break 48.3 MPa  
Tensile Elongation - MD      ASTM D882
Yield 2.5 %  
Break < 250 %  
Oxygen Permeability (25°C) 15 cm³·mm/m²/atm/24 hr ASTM D1434
Water Vapor Transmission Rate (37°C, 90% RH) 0.59 g·mm/m²/atm/24 hr ASTM E96
Carbon Dioxide Permeability (25°C) 84 cm³·mm/m²/atm/24 hr ASTM D1434
Nitrogen Permeability (25°C) 3.0 cm³·mm/m²/atm/24 hr ASTM D1434
Thermal Nominal Value Unit Test Method
Continuous Use Temperature 60.0 °C  
Melting Temperature 420 °C DSC
CLTE - Flow (25°C) 6.9E-5 cm/cm/°C TMA
Specific Heat (20°C) 837 J/kg/°C  
Thermal Conductivity (25°C) 0.13 W/m/K ASTM C177
Service Temperature - Short-Term  80 °C  
Electrical Nominal Value Unit Test Method
Surface Resistivity 3 1.0E+13 ohms ASTM D257
Volume Resistivity 4 (23°C) 1.4E+17 ohms·cm ASTM D257
Dielectric Strength 280 kV/mm ASTM D149
Dielectric Constant     ASTM D150
60 Hz 2.65    
1 kHz 2.65    
1 MHz 2.65    
Dissipation Factor     ASTM D150
60 Hz 2.0E-4    
1 kHz 2.0E-4    
1 MHz 6.0E-4    
Optical Nominal Value    
Refractive Index 5 1.661    
Additional Information Nominal Value Unit Test Method
Hydrogen (H2) Gas Permeation (25°C) 210 cm³·mm/m²/atm/24 hr ASTM D1434
Notes      
323°C, 50% RH      
450% RH      
5Abbe Refractometer      


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