High purity Rubber Accelerator ZDTP-1 with best quality CAS NO.68649-42-3

Chemical Name:

Zinc Dialkylphosphorodithiloate

Molecular Formula:

C 24 H 52O 4 S 4 P 2 Zn

Molecular Weight:

660.25

UPC ZDTP-1
Product form

Liq
Liquid

Pdr-70%
70% Powder on silica

Specification
Appearance
Ordor 
Assay  (%)
Sulfur       (%)
Zinc        (%)
Phosphorous       (%)
Insoluble in methanol (%)
(includes the carrier)
PH Value
Specific gravity at 15.6°C 

Properties
Density at 25°C (kg/m3)
Packing:

Clear liquid
No ordor
-
14.0-18.0
8.5-10.0
7.2-8.5
-

5.5
-
1080-1130
In 200kg drums

White powder 
-
68.5-71.5
-
-
5.0-6.0
28.5-31.5
-
1.21-1.31

1600
In 25kg paper bags

Test method
GB6540


GB/T388
SH/T0226
SH/T296


SH/T0394 

GB1884

Function:

UPC ZDTP-1 is a fast curing secondary accelerator for NR and EPDM

Major applicant and properties:

UPC ZDTP-1 is mainly used as a accelerator in non-blooming, relative low cost, fast curing systems for EPDM.
When used in combination with MBTS or sulfenamides in NR compounds, UPC ZDTP-1 dramatically improves reversion resistance. Because of its non-amine based structure, UPC ZDTP-1 can be used as a component in non-N-nitrosamine generating cure systems.
UPC ZDTP-1 is non-discoloring and non-staining.
UPC ZDTP-1 is regulated for use in articles in contact with food as specified under BgVV XXI, category 4, UPC ZDTP-1 is not regulated for use in FDA food contact applicants.

Compounding Information:

UPC ZDTP-1 can be used in NR and EPDM at levels of 1.0-5.0 phr(based on pdr-70%)as a secondary accelerator in combinations with sulfenamides, thiazoles and thiurams.
When used in NR to improve reversion resistance, care must be taken to select the level of UPC ZDTP-1 to obtain the best compromise between scorch and reversion resistance. Since ZDTP-1 is non-blooming and non-discoloring. It can be used in translucent, fast curing NR shoe sole comounds.

NR(phr)

EPDM(phr)

Sulfur
UPC ZDTP-1-pdr-70%
CBS
TBBS
TMTD

1.0
2.5
0.6
-
-

1.0
3.3
-
2.0
1.0