Amylphenol disulfide polymer VA-3
China [CN] Amylphenol disulfide polymer VA-3, the appearance Reddish-brown to dark brown pastilles and sulfur content is 27.0-29.0%. It's nitrosamine-free sulfur donor vulcanizing agent; Natural rubber and most synthetic rubbers; Amylphenol disulfide polymer 3 produces predominately monosulfide bridges. These bridges are stable and have excellent resistance to heat and ageing when compared with typical polysulfide bridges.
Composition:Amylphenol disulfide polymer(>95% )+sulfur(<2%)< p="">
Synonym:
Amylphenol disulfide polymer; Arkema Vultac 3 equivalent; Poly-amylphenol disulfide polymerMixture of Phenol, 4-(1,1-dimethylpropyl)-, polymer with sulfur chloride (S2Cl2) with sulfurCuring Resin
Specification:
| Item | Standard | Test Way |
| Appearance | Reddish-brown to dark brown pastilles | Visual |
| Sulfur content, % | 27.0-29.0 | Combustion |
| Softening point, ℃ | 78.0-93.0 | Ring & Ball |
| Specific gravity @ 25℃ | 1.2 | Typical |
| Flash point closed up | 644℉(340℃) | / |
Application: ● Description: Amylphenol disulfide polymer 3 is nitrosamine-free sulfur donor vulcanizing agent.● Polymers: Natural rubber and most synthetic rubbers. ● Crosslink Type: Amylphenol disulfide polymer 3 produces predominately monosulfide bridges. These bridges are stable and have excellent resistance to heat and ageing when compared with typical polysulfide bridges.
Advantages:● Non-nitrosamine● Lower tack to make it easier to stock and handle● Lower volatility● Lower volatile degradation products● Good compatibility with many rubber polymers● Very good antioxidant properties● Improve heat age properties of vulcanizates because of its generation of mono- and di-sulfic crosslinks● Increase the resinous plasticizer during processing● Increase the green tack in NBR,BR and SBR based compounds● Improve the dispersion of other compound ingredients into rubber
Package:25kgs/paper drum;25kgs/kraf or as customer’s request;
Storage: Store it in dry & cool environment(below 86 °F/30℃) in closed original containers.
Shelf Life:2 years if stored as indicated above
Click enlarge Image