rubber accelerator dptt(tra)
chemical name:dipentamethylene thiuramtetrasulfide
molecular formula:c12h20n2sn+2(n=4or6)
cas no:120-54-7
specification:
|
item |
powder |
oiled powder |
granule |
|
appearance (visual inspection) |
light yellow powder (granule) |
||
|
initial m.p. oc≥ |
110.0 |
109.0 |
109.0 |
|
heating loss %≤ |
0.30 |
0.40 |
0.30 |
|
ash%≤ |
0.30 |
0.30 |
0.30 |
|
residues on sieve(150μm), % ≤ |
0.10 |
0.10 |
\ |
|
residues on sieve(63μm), % ≤ |
0.50 |
0.50 |
\ |
|
oil content, % |
\ |
1.0-2.0 |
\ |
|
granule diameter, mm |
\ |
\ |
1.5-2.5 |
properties:light yellow powder (granule). no taste, no poison. the density is 1.5. soluble in chloroform, benzene, acetone, cs2, partly soluble in gasoline and ccl4 insoluble in water and alkali of lower concentration
application:dptt is used as primary/secondary accelerator or sulphur donor for iir, csm, epdm, nr, ir, sbr and cr. it can improver the heat resistance and anti-aging property of vulcanized rubbers; especially suitable for light-colored products.
packing:25kg plastic woven bag, paper with plastic film bag, kraft paper bag.
storage:the product should be stored in the dry and cooling place with good ventilation, avoiding exposure of the packaged product to direct sunlight. the validity is 2 years .