Dynasylan® HYDROSIL 2909 is an aqueous oligomeric aminoalkyl-functional silane hydrolysate. It is almost colorless aqueous solution with an amine-like odour, miscible with alcohols or water.
Dynasylan® HYDROSIL 2909 can be diluted with water in all proportions (stirring for at least 1 h at RT). During dilution, the oligomeric structure changes and the number of SiOH groups increases. The hydrolysates are long-term stable.
Typical Applications
Dynasylan® HYDROSIL 2909 is a trifunctional organic compound in which the silanol groups can be bonded to an inorganic substrate and the organophilic aminoalkyl group can interact with a suitable polymer or resin.
Examples of suitable inorganic substrates are:
Examples of suitable polymers or resins are:
Dynasylan® HYDROSIL 2909 finds application in many industries. Advantages arise in water-based systems.
Examples are:
Examples of suitable inorganic substrates are:
- glass, glass fibers, glass beads and glass wool
- mineral wool
- metals
- and various fillers like quartz, wollastonite or ATH.
Examples of suitable polymers or resins are:
- Thermosets like epoxy, phenolic, furanic and melaminic resins
- Thermoplastics like PA, PBT, EVA, PPS, MAPE, MAPP, PVB, acrylates
- Elastomere like silicones
Dynasylan® HYDROSIL 2909 finds application in many industries. Advantages arise in water-based systems.
Examples are:
- as a glass and metal primer
- as a size constituent of glass fiber/glass fabric composites or mineral wool insulating materials
- as an additive to foundry resins and abrasives
- as a pretreatment or an additive to mineral-filled thermoplastic compounds
- as an additive for adhesives and sealants to improve adhesion to the substrate
- as an additive and/or primer for paints and varnishes to improve adhesion to the substrate
Benefits at a glance
The particular advantage of Dynasylan® HYDROSIL 2909 compared with the corresponding monomeric amino- or alkyl-functional alkoxysilanes are:
Important product effects that can be achieved by using Dynasylan® HYDROSIL 2909 are:
Dynasylan® HYDROSIL 2909 helps as well to improve processing properties such as:
- Alcohol content of ≤ 1% garantees nonflammability, safe handling and minimal volatile organic constituents emisssion.
- No hydrolysis chemistry is needed as Dynasylan® HYDROSIL 2909 is a ready-to-use aqueous silane hydrolysate.
- Easily diluted with water to adjust to target concentration.
- Applicable in a broad pH range.
Important product effects that can be achieved by using Dynasylan® HYDROSIL 2909 are:
- Improved mechanical properties, e.g. flexural strength, tensile strength, impact strength, modulus of elasticity.
- Improved resistance to moisture and corrosion.
- Improved adhesion by excellent surface wetting of inorganic substrates and optimal reaction with organic polymers.
Dynasylan® HYDROSIL 2909 helps as well to improve processing properties such as:
- Nonflammability making almost no particular equipment safety precautions necessary.
- Better filler dispersion leading to increased filler content during compounding.
Product Details & Documents
Product Information
Certificate
Further Information
Storage:
It is recommended to store Dynasylan® HYDROSIL 2909 above 4 °C and below 40°C.
Dynasylan® HYDROSIL 2909 has a flash point >= 95°C and can be stored and transported accordingly with different local requirements, compared to flammable liquids (Category 2, 3 and 4), as the most established monomeric alkoxysilane materials are.
Dynasylan® HYDROSIL 2909 has a flash point >= 95°C and can be stored and transported accordingly with different local requirements, compared to flammable liquids (Category 2, 3 and 4), as the most established monomeric alkoxysilane materials are.
Packaging:
Dynasylan® HYDROSIL 2909 is supplied in 25 kg PE cans and 200 kg drums.
Shelf life:
Dynasylan® HYDROSIL 2909 has a shelf life of minimum 6 months from delivery in an originally sealed can or drum.