myTechnical Documents
Dynasylan® 4148 is polythylene glycol-functional alkoxysilane. Used in adhesives.
Details
Product Type
Recommended for
Applications
Producer
Supplier
Chemical Composition
Polyethyleneglycolfunctional alkoxysilane
Advantages
- control rheological properties
- reduce viscosity in highly filled polymer systems, like aluminum trihydroxide filled polyesters or SMC pastes
- Contrary to most other organofunctional silanes, it features chemical polarity yet remaining chemically not reactive
Other Applications
as anti-settling agent for corrosion inhibitors in glycol based cooling agents
as a slipping agent to simply modify a surface
used for the pretreatment of the filler or pigment
as a hydrophilic compatibilizer
as a lubricant and wetting agent in the glass fibre industry in combination with silane coupling agents
Storage
The containers must remain tightly sealed and stored in a cool, well-ventilated place protected against moisture.
Handling
Dynasylan® 4148 is listed in DSL/NDSL PICCS TSCA IECSC ENCS ECL EINECS/ELINCS.
It permits workable viscosities at well over 250 phr aluminum trihydroxide loading in unsaturated polyester resins.
Technical data
| Quantity | Value | Unit | Comment |
|---|---|---|---|
| Appearance Properties | |||
| Appearance | light yellow | ||
| Physical state | Fluid | ||
| Physical Properties | |||
| Viscosity | 10 - 20 | cP | DIN53015 ;20°C |
| Density | 1.1 | g/ml | DIN51757 ;20°C |
| Thermal Properties | |||
| Freezing point | <-10 | °C | DIN ISO3016 |
| flash point | >95 | ºC | EN22719 |
| Chemical Properties | |||
| Shelf Life | >12 | month | |
| Solubility | |||
| Solubility | |||
| Solubility | Water | ||