配方类型:

ELASTOMERS, POLYMERS, AND RESINS

配方说明:

Unreinforced Casting Compounds (Soft)

配方组成:

Modulus (10^3 psi)/20
unsaturated isopolyester polyol and diisocyanate were thoroughly
mixed using a Cowles high-shear mixer. Moisture scavenger and catalysts
were added separately. Castings were cured for 16 h at 57 C and
post-cured for 2 h at 80 C.
Physical Properties
Methyl Ethyl Ketone Peroxide/0.30
Modulus (GPa)/0.14
Urethane Catalyst/0.04
Elongation (%)/9.0
Flexural Properties, ASTM D 790
Strength (psi)/320
Isocyanate Index/80
Strength (MPa)/2.2
Modulus (10^3 psi)/20
Modulus (GPa)/0.14
Izod Impact Resistance, ASTM D 256,
0.125 in. notched sample (ft-lb/in.)/1.5
(J/m)/8.0
Durometer Hardness, ASTM D 2240 Shore D rating/15
glass Transition Temperature ('C)/-23
Diisocyanate/18.50
Benzoyl Peroxide/-
Diethylaniline/0.20
Moisture Scavanger/5.00
Tensile Properties, ASTM D 638
Isopolyester Polyol A/100.00
Strength (psi)/350
Cobalt Octoate (6%)/0.30
Strength (MPa)/2.4

配制方法: