company tower banner
Evonik Company Logo

Dynasylan® SIVO 214

Dynasylan® SIVO 214 is an aminofunctional silane composition with enhanced crosslinking activity. It serves as an adhesion promoter, facilitating bonding between inorganic materials (such as glass, metals, fillers) and organic polymers (including thermosets, thermoplastics, elastomers). Additionally, it functions as a surface modifier and supports chemical modification of various substances.

Brand: Dynasylan (42 products)

Functions: Adhesion Promoter, Coupling Agent, Crosslinking Agent, Sizing Agent, Surface Modifier

Enhanced TDS

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Features & Benefits

CASE Ingredients Features
Industrial Additives Features
Materials Features
Ready-to-Use Product Features
Product Highlights
  • Dynasylan® SIVO 214 contains primary and secondary aminoalkylethoxysilanes.
  • The components are bifunctional organic compounds in which the silicon-functional ethoxy groups hydrolyze in the presence of water to give ethanol and the corresponding reactive silanols, which can be bonded to an inorganic substrate; the organophilic amino group can interact with a suitable polymer.
  • The composition contains partly six hydrolyzable substituents in one molecule.
  • Thus Dynasylan® SIVO 214 is exceptionally suitable to form highly crosslinked networks on and between substrates and in organic matrices.
  • 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 hydroxide, kaolin, talc, other silicate fillers, metal oxides and metals.
  • Examples of suitable polymers are phenolic resins, furan resins, melamine resins, PA, PBT, PC, EVA, modified PP, PVB, PVAC, PVC.
  • The secondary amino group in Dynasylan® SIVO 214 provides high basicity at somewhat lower reactivity compared to the primary amino groups.
  • This is of major advantage in e.g. HFFR cables where the silane is added to the polymer matrix: Homogeneous distribution and bonding/networking of Dynasylan® SIVO 214 to the inorganic filler can commence unless bonding to organic materials (e.g. polymers) will proceed.
  • Excellent crosslinking properties make Dynasylan® SIVO 214 a preferred component in the silylation of inorganic filler surfaces and in corrosion-resistant primer systems for metal pretreatment. In foundry resins Dynasylan® SIVO 214 is suited as adhesion promoter between sand and resin.
  • This is especially valid for phenolic resins cured by isocyanates. Moreover, Dynasylan® SIVO 214 can be used as a component in aqueous PA- and PU-sizes for glass fibers.

Applications & Uses

Markets
Applications
Compatible Polymers & Resins
Compatible Substrates & Surfaces
Coating Type
Industrial Additives End Use
Plastics & Elastomers End Uses
Application Characteristics
  • Dynasylan® SIVO 214 contains primary and secondary aminoalkylethoxysilanes.
  • The components are bifunctional organic compounds in which the silicon-functional ethoxy groups hydrolyze in the presence of water to give ethanol and the corresponding reactive silanols, which can be bonded to an inorganic substrate; the organophilic amino group can interact with a suitable polymer.
  • The composition contains partly six hydrolyzable substituents in one molecule.
  • Thus Dynasylan® SIVO 214 is exceptionally suitable to form highly crosslinked networks on and between substrates and in organic matrices.
  • Examples of suitable inorganic substrates are glass, glass fibers, glass wool, mineral wool, silicic acid, quartz, sand, cristobalite, wollastonite and mica; also suitable are aluminum hydroxide, kaolin, talc, other silicate fillers, metal oxides and metals.
  • Examples of suitable polymers are phenolic resins, furan resins, melamine resins, PA, PBT, PC, EVA, modified PP, PVB, PVAC, PVC.
  • The secondary amino group in Dynasylan® SIVO 214 provides high basicity at somewhat lower reactivity compared to the primary amino groups.
  • This is of major advantage in e.g. HFFR cables where the silane is added to the polymer matrix: Homogeneous distribution and bonding/networking of Dynasylan® SIVO 214 to the inorganic filler can commence unless bonding to organic materials (e.g. polymers) will proceed.
  • Excellent crosslinking properties make Dynasylan® SIVO 214 a preferred component in the silylation of inorganic filler surfaces and in corrosion-resistant primer systems for metal pretreatment. In foundry resins Dynasylan® SIVO 214 is suited as adhesion promoter between sand and resin.
  • This is especially valid for phenolic resins cured by isocyanates. Moreover, Dynasylan® SIVO 214 can be used as a component in aqueous PA- and PU-sizes for glass fibers.
Processing
  • For substrate pretreatments, for example as a primer (as an approximately 0.5-2 percent solution).
  • Dynasylan® SIVO 214 can advantageously be employed in organic solvents, such as alcohols, as constituent of aqueous sizes or solutions, as pure substance or added to the polymer as an additive.
  • In higher concentrations (1-5 wt.-%) chemical modification can be achieved by reaction with suitable functional monomers or polymers, for example those containing epoxy groups.
Substrate Recommendations

Recommended for : 

  • Steel: cold rolled steel (CRS). abraded surface 0.3 –0.6% Mn / 0.08 – 0.13% C / 0.05% S / 0.04% P
  • Aluminum: alloy (3105 H 24) 96.8 – 97.4% Al / 1.0– 1.5% Mn / 0.6% Si / 0.05 –0.2% Cu
  • Copper
  • Glass

Properties

Appearance
Colorless to yellowish liquid
Odor
Amine - like odor
Soluble in
Alcohols, Aliphatic and aromatic hydrocarbons
Technical Data
ValueUnitsTest Method / Conditions
Density (at 20°C)approx. 0.95g/cm³DIN 51757
Viscosity (at 20°C)2.0mPa.sDIN 53015
Flash Pointmin. 95°CDIN EN 22719
Boiling Point (at 4 hPa)min. 68Mass %DIN 51356
pH (at 20°C, 1:1 in H₂O)11.0--
Residual Moisture0.25%-
Evolved VOC (Methanol)630.0g/kg-

Regulatory & Compliance

Technical Details & Test Data

Melt Flow Ratio

Melt flow ratio of magnesium hydroxide (MDH) – filled polypropylene compounds.

  • Reduced agglomeration is a consequence of improved dispersion of the inorganic in the organic matrix.
  • Also the melt flow ratio of the compound is signifi cantly increased.
  • The better the choice of silane, the better the compatibilizing effect in the final compound (see diagram).

Melt flow ratio of a MDH / PP / PP-MAH compound with different silanes

Improved Mechanical Properties:

Melt flow ratio of a MDH / PP / PP-MAH compound with different silanesMechanical properties can be improved by chemically coupling the polymer to the filler.

  • The chemical bond between the inorganic and the organic part of the compound is crucial to achieve improved mechanical properties.
  • The elongation at break of magnesium hydroxide-filled PP based cable compound, for instance, improves significantly, without any adverse effects onto the tensile strength.

The elongation at break of a magnesium hydroxide-filled polypropylene (PP) compound with additional maleic anhydride as coupling agent.

Packaging & Availability

Packaging Type
Packaging Information

Dynasylan® SIVO 214 is supplied in 25 kg pails, 180 kg inner coated drums and 900 kg bulk containers.

Storage & Handling

Shelf Life
12 months