Dynasylan® HYDROSIL 1151 is an aqueous oligomeric amino-functional silane hydrolysate, which acts as an adhesion promoter between inorganic materials (for example glass, metals and fillers) and organic polymers (thermosets, thermoplastics and elastomers).
Dynasylan® HYDROSIL 1151 is a colorless to slightly yellowish aqueous solution with an amine-like odour, miscible with alcohols or water.
Dynasylan® HYDROSIL 1151 is a bifunctional organic compound in which the functional silanol groups can be bonded to an inorganic substrate; the organophilic amino group can interact with a suitable polymer. The particular advantage of Dynasylan® HYDROSIL 1151 compared with the corresponding aminofunctional alkoxysilanes is its nonflammability, the fact that no volatile organic constituents are released and the fact that no particular equipment safety precautions are necessary. Dynasylan® HYDROSIL 1151 can be diluted with water in all proportions. The hydrolysates are long-term stable.
Examples of suitable inorganic substrates are glass, glass fibres, glass wool, mineral wool, silicic acid, quartz, sand, cristobalite, wollastonite and mica; also suitable are aluminium trihydroxide, kaolin, talc, other silicate fillers, metal oxides and metals. Examples of particularly suitable polymers are epoxy resins, polyurethanes, phenolic resins, furane resins, melamine resins, PA, PBT, PC, EVA, PP, PVAC, acrylates and silicone.
Typical Applications
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 1151 finds application in many industries. Advantages arise in water-based systems.
Examples are:
- 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 a glass and metal primer
- 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
- Alcohol content of ≤ 1% guarantees nonflammability, safe handling and minimal volatile organic constituents emisssion.
- No hydrolysis chemistry is needed as Dynasylan® HYDROSIL 1151 is a ready-to-use aqueous silane hydrolysate.
- Easily diluted with water to adjust to target concentration.
- Adaptable to a broad pH range.
Important product effects that can be achieved by using Dynasylan® HYDROSIL 1151 are:
- Improved mechanical properties - flexural strength, tensile strength, impact strength and 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 1151 also helps 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
Technical Data Sheets
Further Information
Storage:
However, singular freezing does not influence the product quality. Frozen product is re-useable after complete thawing and homogenization. Just stirring is sufficient for homogenization.
Dynasylan® HYDROSIL 1151 has a flash point > =95°C and can be stored and transported advantageously according to different local requirements, compared to flammable liquids (Category 2, 3 and 4), as the most established monomeric alkoxysilane materials are.