Silane Oligomer Diaminofunctional Silane Crosile®5246
Chemical Name: Diaminofunctional silane
Cas No.: 1067-25-0
Chemical Properties
Crosile® 5246 Silane is characterized by a random distribution of linear and cyclic Olig siloxanes, which meet the OECD polymer definition. Its low volatility and viscosity make compounding easy.
Crosile® 5246 Silane produces a significant reduction in by-products (VOCs) and a corresponding reduction in odor levels during application.
Specifications
Ash (SiO2) |
43±2% |
Refraction (25°C) |
1.4400±0.005 |
Physical form |
clear to light opaque |
Chloridion |
≤ 20ppm |
Flash point |
>50°C |
Tone |
70 |
Density (20°C) g/cm3 |
1.06±0.02 |
Amine Value |
6.8±0.5% |
Viscosity (25℃ mPa.s) | 38-80 |
Product Application
- As an additive or primer in the coatings, adhesives, and sealants industry;
- As an additive, 5246 can eliminate some special primer steps in multiple bonding applications.
- Crosile-5246 The usual recommended addition is 0.5~1.5 wt.% relative to the overall formulation.
- In particular, in photovoltaic/solar sealant, the use of Crosile-5246 can make it pass the double 85,95 test;
- It can be used for the treatment of inorganic fillers. When mixed with resin systems, the use of Crosile-5246 can yield functional inorganic fillers with unique properties.
- MS adhesive systems, RTV silicone rubber, and hybrid silane crosslinking systems, two-component polyurethane, and organic silicon-modified polyurethane, two-component epoxy resin, and other systems can also improve the adhesion of Crosile-5246.
Application Features
- For organic substrates (PVC)
- Improve tensile strength and modulus
- No yellowing in high elasticity formula
- Give the colloid better mechanical strength
- For inorganic substrates (concrete, aluminium product)
Functional Characteristics
- Migration
- Hydrophobicity
- Less VOC emission
- Less yellowing (white/translucent products)
- Compatibility with polar/non-polar polymers
- High flash point, low volatility (process/operation safety)
- Combine amino/alkyl functional groups in the same molecule
- Excellent bonding promotion for organic/inorganic substrates
Application comparison between Crosile-5246 and an Overseas brand competitor
Crosile-5246 compared with domestic products in appearance, solid content, amine value, The content of chloride ion and product stability are significantly better than those sold in China, but they are not much different from those of overseas competitors. The application of downstream scenarios plays a vital role;
Indicator | Overseas Brand |
Ecopower brand Crosile-5246 |
Other Peer Products |
Ash Content (SiO2) | 43.4% | 43-45% | 41-42% |
Density (20°C) | 1.061 | 1.064 | 1.058 |
Viscoity (25°C, CS) | 30-40 | 35-50 | 38-80 |
Refractive Index (25°C) | 1.442 | 1.443 | 1.443 |
Chloride | 6 ppm | 5 ppm | 20-100 ppm |
Amine Value | 6.81% | 6.89% | 6.20-6.52% |
Apperance | Light Yellow Transparent | Light Yellow to Colorless Transparent | Yellow to Light Transparent |
Flash Point | 55°C | 60°C | 40°C |
The table below is a comparison of some applications of Crosile-5246 and an overseas competitor, they are the bonding test, mechanical test, and aging test;
Experiment Number | Glass | Anodized Aluminum | SUS304 | SUS202 | Powder Spraying Red | Powder Spraying Ash | Yellow Electro Phoresis | White Electrophoresis |
Overseas Competitor | CF | CF | CF | CF | 5%AF | 70%AF | 60%AF | CF |
Crosile-5246 | CF | CF | CF | CF | 5%AF | 25%AF | CF | CF |
Item | Spec | Unit | SLT 6418TRS | SLT 6418TRS | |
Overseas Competitor | Crosile-5246 | ||||
Before Curing | Apperance | ≤2.5 | - | 2.5 | 2.5 |
Surface Drying Time | 1-10 | min | 3 | 2.5 | |
Extrusion Rate | 90-300 | g/min | 200 | 140 | |
After Curing (Curing 3d) |
Density | found | g/m3 | 1.012 | 1.011 |
Shore A | ≥23 | Shore A | 29 | 29 | |
Tensile Strength | ≥1.3 | Mpa | 1.62 | 1.99 | |
100% Modulus | found | Mpa | 0.57 | 0.57 | |
Elongation at Break | ≥300 | % | 369 | 448 | |
Aging (95°C/2d) | Extrusion Rate | found | g/min | 85 | 62 |
Shore A | found | SH.A | 26 | 25 | |
Tensile Strength | found | Mpa | 1.56 | 1.2 | |
100% Modulus | found | Mpa | 0.54 | 0.43 | |
Elongation at Break | found | % | 464 | 446 | |
Unaged | Consistency | found | cm | 8.5 | 8.7 |
Initial Strength | 6mm adhesive tape | 40min | 30min | ||
Deep Curing | 6mm adhesive tape | 1d | 1d | ||
Aging (95°C/2d) | Consistency | found | cm | 7.3 | 7.3 |
Initial Strength | 6mm adhesive tape | 5h | 4h 40min | ||
Deep Curing | 6mm adhesive tape | 2d |