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| Aztec DCLBP-50-PSI |
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Aztec DCLBP-50-PSI is a white, stiff paste consisting of 50% Di(2,4-dichlorobenzoyl)peroxide, desensitized with silicone oil.
This halogenated diaroyl peroxide is used as a source of radicals in the crosslinking of polymers above 100'C, particularly silicone rubber.
Aztec DCLBP-50-PSI peroxide is used as a catalyst for crosslinking a variety of synthetic rubbers, primarily silicone, at temperatures above 100'C.(100-115'C cures should be done under pressure and then post-cured 12-24 hrs. at 150-250'C).
Typical usage level is 1-2% of product as supplied.
DCLBP-50-PSI has the lowest activation temperature and the highest rate of cure of any of the common peroxides used in crosslinking.
It is ideally suited for fast curing of thin cross-sections in continuous cures.
Special advantages of this peroxide: Not oxygen inhibited.
Can be used in hot air cures at atmospheric pressures at temperatures from 150-250'C.
Decomposition products have a very low vapor pressure so porosity does not normally occur.
Disadvantages: Caution must be used in dealing with the fast scorch times.
The peroxide is sensitive to carbon blacks.
Also, thick cross-sections may revert due to acid by-products of decomposition.
Another use of DCLBP-50-PSI is in combination with other peroxides.
This may allow de-molding of parts that would otherwise hot tear.
Cure is finished by post-curing. |
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Di(2,4-Dichlorobenzoyl)peroxide : 49.0 - 51.0%
Active Oxygen: 2.06 - 2.15%
Specific Gravity: 1.19
Color and Form: Stiff, white paste
One-hour Half-life Temperature: 72'C |
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