配方类型:

ELASTOMERS, PLASTICS AND RESINS

配方说明:

Natural Rubber Foam

配方组成:

Accelerator Dispersion (ZDEC)/2.0
The base mix A is foamed to the required volume. Mixture B is added
and the rate of agitation is reduced to refine the foam in the usual
manner. The foam is poured into a mold which has been preheated to
55-65 C and the mold is closed. After 5-10 min gelation will be complete
and the mold may be heated in steam or hot water at 100 C for
approximately 30 min to achieve vulcanization. After vulcanization the
product is stripped, washed, and dried.
FORMULA No.
Castor Oil Soap Solution/1.0
Accelerator Dispersion (ZMBT)/0.6-2.0
Sulfur Dispersion/5.0
B: Polypropylene Glycol 750 Sol'n./10.0
China Clay/70-100
Color Dispersion/2.0
B: Polypropylene Glycol 750 Sol'n./4.0
"Vulcastab"/6.0
Zinc Oxide Dispersion/6.0
"Vulcastab"/1.0
Accelerator dispersion (ZMBT)/2.0
Zinc Oxide Sol'n./6.0
Antioxidant Dispersion/2.0
Sulfur Dispersion/5.0
A: NR Latex Concentrate/167.0
A: NR L

配制方法:

The base mix A is placed in the bowl and foamed to approximately six times the original volume of latex. Mixture B is added and the rate of foaming is reduced to refine the foam. At this viscosity the foam is suitable for spreading operations, and thicknesses of up to 5 mm are readily gelled. Gelation is preferably carried out in a hot air stream at 90'C. Drying and vulcanizing may then be carried out at any convenient temperature.