SPchem Si 69
| Chemical Name | Bis [3-(triethoxysilyl) propyl] tetrasulfide |
| CAS NO. | 40372-72-3 |
| Chemical Formula | (C2H5O)3SiCH2CH2CH2-S4-CH2CH2CH2Si(OC2H5)3 |
| Related Words | Coupling agent G-407;Silane coupler KH-858; Si-69 Silane coupling agent;si69; 3-triethoxy-silylpropyl-tetrasulfane; bis(triethoxysilylpropyl)tetrasulfide;bis(triethoxysililpropyl)tetrasulfane |
Product Introduction
A pale yellow clear liquid with light odor of ethyl alcohol and
soluble easily in ethyl alcohol, acetone, benzene, toluene etc. Insoluble in water.
soluble easily in ethyl alcohol, acetone, benzene, toluene etc. Insoluble in water.
Applications
1. SPsil 69 is a kind of multifunctional silane coupling agent that has been used successfully in the rubberindustry. It is used to improve physical and mechanical properties of vulcanizates.
2. It is able to markedly improve tensile strength, tearing strength and abrasive resistance and reducecompression set of vulcanizates. In addition, it can reduce the viscosity and improve the processability ofrubber products.
3. SPsil 69 is especially suitable to improve the reinforcing properties of fillers that contain hydroxyl groups inall unsaturated polymers having double bonds or their blends. Silica, talc powder, mica powder and claycan be used in combination with SPsil 69 in polymers such as NR, IR, SBR, BR, NBR and EPDM. Recommend dosage 1.0-4.0 PHR.
2. It is able to markedly improve tensile strength, tearing strength and abrasive resistance and reducecompression set of vulcanizates. In addition, it can reduce the viscosity and improve the processability ofrubber products.
3. SPsil 69 is especially suitable to improve the reinforcing properties of fillers that contain hydroxyl groups inall unsaturated polymers having double bonds or their blends. Silica, talc powder, mica powder and claycan be used in combination with SPsil 69 in polymers such as NR, IR, SBR, BR, NBR and EPDM. Recommend dosage 1.0-4.0 PHR.
SpecificationStandard
- Sulfur Content%(Wt)≥22.0%
- Density(20C g/cm3)1.08±0.01
- Refractive index1.4800 ~1.495
- Colour (Pt/Co)≤30
- By-products *(GC)≤4.0%
- Flash Point * (oC)≥100
- S2 Content HPLC17.0士3.0%
- S3 Content HPLC30.0士4.0%
- 9.S3 Content HPLC30.0士4.0%
- S4 Content HPLC24.0士3.0%
- S5-S8 Content HPLC27.0士3.0%
- 1Free Sulfur Content HPLC≤1.0%
- Average Sulfur Chain Length HPLC3.75士0.15%
- Chlorine Content ( % )≤0.6%