Product Description of Silane Coupling Agent - Si75
CAS No.: 56706-10-6
Silane coupling agent Si75 is a commonly used bifunctional organosilicon additive in the rubber industry, mainly used to improve the adhesion between silica, fillers and rubber, and enhance the overall performance of the rubber compound. It is a transparent light yellow liquid with a mild odor, obtained by refining and purifying the mercapto silane as the core component. It can be directly added to the rubber compound and is suitable for rubber formulations filled with silica in tires, shoe soles, seals, etc., effectively solving production problems such as poor dispersion and agglomeration of fillers.
Product Parameters
|
Appearance |
Light yellow transparent liquid |
|
Effective Component |
≥95.0% |
|
Density (25℃) |
1.06–1.09 g/cm³ |
|
Refractive Index |
1.455–1.470 |
|
Sulfur Content |
12.5–13.5% |
|
Moisture |
≤0.5% |
Product Advantages
It can build a bridge between inorganic fillers and rubber molecules, making silica disperse more evenly and significantly reducing the Mooney viscosity of the rubber compound; it reduces rolling resistance and enhances the wear resistance and tear resistance of rubber products; it has good thermal stability and is not prone to premature decomposition during the mixing process; it has a high compatibility with the vulcanization system and does not interfere with the normal vulcanization process; it improves the processing fluidity of the rubber compound, enhances the stability of extrusion and calendering, and results in a finer appearance of the finished product.
Services
Standard 25kg plastic drum sealed packaging, small sample sizes available; stable supply, quick delivery; quality inspection reports provided, assist with formula adjustment; technicians can guide on practical points such as addition timing and mixing temperature.
FAQ
Q: What fillers is Si75 mainly used with?
A: It is mainly used with silica, and can also be used to modify inorganic fillers such as clay and silicon powder.
Q: What is the general addition amount?
A: The conventional dosage is 4%–8% of silica, and can be fine-tuned according to the formula.
Q: What are the storage requirements?
A: It should be stored in a sealed container away from light, moisture and alkaline substances to prevent hydrolysis and failure.
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