RODRUN LC-5020CF    
    
Liquid Crystal Polymer    
    
UNITIKA Plastics Division   
     
 Technical Data    
     

Product Description

Unitika Rodrun is a thermoplastics for percision injection classified into semi-aromatic liquid crystal polyesters (LCPs). LC-5000 series has a excellent moldability (high flow without flash, using a mold of low temperature) and precision (low warpage).

LC-5000 series are suitable for almost all dipping soldering conditions and partial reflow soldering (low warpage).

LCP has stiff molecular structure to form liquid crystal at molten stage. The archeological properties of low viscosity under shear stress gives high flow without flash problems. Rodrun which use a standard mold temperature of 40°C shows the rheological merit of LCP clearly.

Out shape of a LCP seem to be just like a normal plastics, however, the solid LCP consists of crystal and glasified liquid crystal. Rodrun has a low crystalinity in the mold. This property yields low shrinkage and low warpage. Rodrun is a suitable resin for precision parts.

General

Material Status • Commercial: Discontinued     
Literature 1 •  Technical Datasheet (English)
    
UL Yellow Card 2 •  E47924-239941
    
Search for UL Yellow Card •  UNITIKA Plastics Division
    
 • RODRUN     
       
Availability • Asia Pacific     
Filler / Reinforcement • Glass Fiber Reinforcement, 20% Filler by Weight   
 • Gas Barrier • High Flow • Low Warpage 
Features • Good Chemical Resistance • Low Shrinkage   
     • Semi Crystalline 
 • Good Moldability • Low Viscosity   
       
Uses • Engineering Parts     
Processing Method • Injection Molding     
       
Physical    Nominal Value Unit  Test Method 
Specific Gravity    1.46 g/cm³  ASTM D792 
Water Absorption (23°C, 24 hr)    0.020 %  ASTM D570 
Mechanical    Nominal Value Unit  Test Method 
Tensile Strength (Yield, 3.20 mm)    157 MPa  ASTM D638 
Tensile Elongation (Break)    3.5 %  ASTM D638 
Flexural Modulus      ASTM D790 
1.60 mm    23500 MPa   
3.20 mm    18600 MPa   
Flexural Strength      ASTM D790 
Yield, 1.60 mm    235 MPa   
Yield, 3.20 mm    216 MPa   
Impact    Nominal Value Unit  Test Method 
Unnotched Izod Impact    74 J/m  ASTM D256 
Thermal    Nominal Value Unit  Test Method 
Deflection Temperature Under Load      ASTM D648 
0.45 MPa, Unannealed    240 °C   
1.8 MPa, Unannealed    205 °C   
Flammability    Nominal Value Unit  Test Method 
Flame Rating      UL 94 
0.800 mm    HB   
3.20 mm    V-0   
       
Injection    Nominal Value Unit   
Drying Temperature    130 °C   
Drying Time    4.0 hr   
Hopper Temperature    120 °C   
Rear Temperature    270 °C   
1 of 3 Form No. TDS-120041-en
 
RODRUN LC-5020CF      
Liquid Crystal Polymer      
      
UNITIKA Plastics Division  ides.com/prospector 
     
  Injection Nominal Value Unit 
    
  Middle Temperature 280 °C 
  Front Temperature 290 °C 
  Nozzle Temperature 290 °C 
  Mold Temperature 40.0 °C