High density foams, filled (TDI)

Home
This is a formulation for a high density calcium carbonate filled foam. 
Formulation Low Density Foam Carbon dioxide blown

Polyether Glycerol PO, EO  85 % primary OH, MW 3500, OH # 48, (CAS # 9082-00-2)

100
Calcium carbonate, 40 micron particle size 63.5
Stannous octoate, 50 % active (CAS #  301-10-0) 0.45
Silicone surfactant L-520 0.75
Water 2.2
Triethylenediamine (CAS # 280-57-9) 0.3
N,N,N',N'-Tetramethyl-2,2'-oxybis(ethylamine) (CAS # 3033-62-3) 0.2
Dimethylformamid (CAS #68-12-2) 0.2
TDI  80 % (CAS # 26471-62-5) 32.6
Isocyanate Index 1.14
Processing temperature, F, (C) 82(28)

Test results of machine prepared foam (test methods) (Conversion factors)

Overall density kg/m ( lb/ft3),  (1 kg/m = 0.0624 lb/ft3 )

64.7(4.04)
Compression set 50% 4.8
Compression set 90% 10.6
ILD, lb/50 sq/in
       4", 25 % deflection 54
       4", 65 % deflection 114

Tensile strength kPa (PSI)  (1 kPa = 0.145 PSI)

12

Elongation, %

127
Tear, pli 1.8
Ball rebound, % 41
Breathability, cfm, (1 cfm = 1.699011 m3/h) 1.2
Humid aging (5 hrs, 250F)
    CLD loss, 50% 33.5
    Compression set, 50% 7.7
Cell opener

Last edited on:

November 16, 2006

Copyright, Design, Layout and Technical Content by: