Chemical name:
Di-(3-ethoxy silane propyl)- tetrasulfide
Chemical structure:
(C2H5O)3SiCH2CH2CH2-S4-CH2CH2CH2Si(OC2H5)3
Abroad brand No
SI-69(Degussa), Z-6940(Dow Corning), A-1289(Compton), KBE-846(ShinEtsu)
Chemical CAN
40372-72-3
Properties
Canary transparent liquid with alcohol odor, flash point: 102℃, proportion: 1.08, dissolving in alcohol, acetone, benzene, toluol, etc. Insoluble in water, but deliquating with water or moisture.
Technical specification
| Appearance |
Canary transparent liquid |
Alcohol content |
≤0.5% |
R2 content |
≤3.0% |
Other impurity content |
≤1.0% |
Viscosity(25℃) |
≤19(CPS) |
Sulfur content |
22±1% |
Use
Difunctional polysulfide organic silane coupling agent that successfully used in plastic industry
It is fit for the perduren system with the strengthening agent of white carbon black, glass fiber, talcum powder, mica, clay, etc.
It can improve the stuffing strengthening characteristics and increase abrasive resistance of rubber.
As the rubber agent-- curing ingredient and promoting agent. It is fit for the types of rubber: NR, NBR, SBR, IR, BR, EPDM, etc. During the sulfidation, the coupling speed of 669 tetra sulfur alkyl group is nearly the same as curing behavior speed in sulfur cross-linking, which improves the heat generation of rubber and crackle extensibility. 4 S atoms can promote sulfurization.
It can be used in the products in dynamic and statistic working condition, such as tyre, hose, rubber roll, cable insulation and coating material, shoe, mechanical foundry, etc. It can increase their abrasive resistance, reduce hysteresis quality and hydroscopicity, improve their mechanical performance and splicing performance and increase their ageing performance, modulus and bending life-span.
Dosage
Dosage:1.0~4.0PHR.
Packing and storage
1,Packing:plastic drum, net weight 25 kg, 200 kg, 1000kg.
2,Sealing storage:storing in low temperature, ventilated and dry place.
3.Storage condition:at least 2 years at normal condition.
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