Dynasylan® GLYEO

Dynasylan® GLYEO is a bifunctional organosilane possessing a reactive organic epoxide and a hydrolyzable inorganic triethoxysilyl group. The dual nature of its reactivity allows Dynasylan® GLYEO to bind chemically to both inorganic materials (e.g. glass, metals, fillers) and organic polymers (e.g. thermosets, thermoplastics, elastomers), thus functioning as an adhesion promoter, crosslinking agent and/or surface modifier. Dynasylan® GLYEO is a colorless low­viscosity liquid with a slight terpentine­like odor. It is soluble in alcohols, ketones and aliphatic and aromatic hydrocarbons.

Principal: Evonik Corporation Silanes

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

Chemical Name: (3- Glycidyloxypropyl) triethoxysilane

Chemical Family: Alkoxysilanes

Compatible Polymers & Resins: Acrylates, Acrylonitrile Butadiene Styrene (ABS), Butyl Rubber (IIR), Epoxies (EP), Ethylene Propylene Diene Monomer (EPDM), Melamines & Melamine Formaldehydes (MF), Phenolics, Polybutylene Terephthalate (PBT), Polysulfide Rubber, Polyurethanes (PU), Polyvinyl Chloride (PVC)

End Uses: Foundry Resins, Phenolic Resins, Polyurethane Resins

Features: Corrosion Resistance, Good Electrical Properties, Good Moisture Resistance, High Impact Properties, High Modulus, High Tensile Strength, Improved Flexural Strength, Low Viscosity, Reduces Viscosity, Reduces Viscosity

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Chemical Name
Composite Materials Functions
Function
Adhesion Promoter, Coupling Agent, Crosslinking Agent, Surface Modifier, Sizing Agent
Plastics & Elastomers Functions
Product Code
MITM04168
Single Ingredient
Yes
Synonyms
[[3-(Triethoxysilyl)propoxy]methyl]oxirane, [3-(Glycidoxy)propyl]triethoxysilane, [3-(Glycidyoxy)propyl]triethoxysilane, 2-[[3-(Triethoxysilyl)propoxy]methyl]oxirane, 3-(2,3-Epoxypropoxy)propyltriethoxysilane, 3-(2,3-Epoxypropyloxy) propyl triethoxy silane, 3-(Glycidyloxypropyl)triethoxysilane, 3-(Triethoxysilyl)propyl glycidyl ether, 3-Glycydoxylpropyltriethoxysilane, Epoxypropoxypropyltriethoxysilane, Glycidyl 3-(triethoxysilyl)propyl ether, Triethoxy(3-glycidoxypropyl)silane, Triethoxy[3-(2-oxiranylmethoxy)propyl]silane, γ-(2,3-Epoxypropoxy)propyltriethoxysilane, γ-(Glycidyloxypropyl)triethoxysilane, γ-Glycidoxypropyltriethoxysilane, γ-Glycydoxypropyltriethoxysilane
Technologies
Product Families

Features & Benefits

Applications & Uses

Compatible Polymers & Resins
Compatible Substrates & Surfaces
Industrial Additives End Use
Markets
Applications
Product Applications

Dynasylan® GLYEO is an important or even essential ingredient in the products of many industries.

Examples are:­

  • Glass fiber/glass fabric composites: as a finish or a size ingredient
  • Foundry resins: as an additive to polyurethane resins
  • Sealants and adhesives: as a primer or additive
  • Mineral filled composites: for pretreatment of fillers and pigments or as an additive to the polymer
  • Paints and coatings: as an additive and as a primer for improving adhesion to the substrate, especially glass and metal

Important product effects that can be achieved through the use of Dynasylan® GLYEO include:

  • Improved mechanical properties, such as flexural strength,
  • Tensile strength, impact strength and modulus of elasticity
  • Improved moisture and corrosion resistance
  • Improved electrical properties, for example dielectric constant, volume resistivity

Dynasylan® GLYEO can also improve such processing properties as

  • Better filler dispersion
  • Rheological behavior (i.e. viscosity reduction) Newtonian behavior
  • Increased filler loading
Processing Information
  • For substrate pretreatment, Dynasylan® GLYEO can be used as a primer either as an approximately 0.5­2% solution in an organic solvent such as alcohol, as a constituent of an aqueous size, or neat.
  • It can also be added to the polymer matrix as an additive (1­10 wt.­%).
  • A chemical modification can be achieved by reaction with suitable functional monomers or polymers.

Properties

Physical Form
Soluble In
Product Reactivity
  • In the presence of water, the ethoxy (­OCH₂CH₃ ) groups of Dynasylan® GLYEO hydrolyze to produce ethanol and reactive silanol (­Si­OH) groups which can bond to a variety of inorganic substrates.
  • The organophilic glycidyl end of Dynasylan® GLYEO can react with a suitable polymer.
  • Hydrolysis of Dynasylan® GLYEO is catalyzed by organic acids such as acetic acid.
  • Examples of suitable inorganic substrates are glass, glass fibers, glass wool, mineral wool, silicic acid, quartz, sand, cristobalite, wollastonite, mica as well as aluminum hydroxide, kaolin, talc, other silicate fillers, metal oxides and metals.
  • Dynasylan® GLYEO may be used with such polymers as epoxy, phenolic and melamine resins, polyurethanes, ABS, PBT, PS, PVAC, PVC, acrylates, polysulfides, EPDM and butyl rubber.

Regulatory & Compliance

Packaging & Availability

Packaging Type
Product Packaging
  • Dynasylan® GLYEO is supplied in 25 kg and 200 kg drums.

Storage & Handling

Storage Conditions
  • In the unopened container Dynasylan® GLYEO has a shelf life of least one year.

Other

Appearance
Colorless low ­viscosity liquid
Boiling Point
270.0 °C
Boiling Point (SDS)
270.0 °C
Color (SDS)
Colorless
Decomposition Temperature (SDS)
min. 276.0 °C
Density
1.01 g/cm³
Density (SDS)
1.006 g/cm³
Explosive Nature (SDS)
Vapors can form explosive mixtures with air
Flash Point
125.0 °C
Flash Point (SDS)
125.0 °C
Flash Point (SDS)
125.0 °C
Group Principal Number
S000006
Immiscible In (SDS)
Water
Item Number
Odor
Slight terpentine ­like odor
Partition coefficient n-octanol/water (SDS)
2.0
Principal
Self Ignition Temperature (SDS)
230.0 °C
Shelf Life
1.0 yr
Vapor Pressure (SDS)
1.05 hPa
Viscosity (SDS)
3.35 mPa.s
pH (SDS)
3.5-4.0
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life1.0 yryr
Physical Properties
ValueUnitsTest Method / Conditions
Boiling Point270.0 °C°CDIN 51356 at 0.7 hPa
Density1.01 g/cm³g/cm³DIN 51757 At 20°C
Flash Point125.0 °C°CEN 22719
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Boiling Point (SDS)270.0 °C°CDIN 51356 at 1013 hPa
Decomposition Temperature (SDS)min. 276.0 °C°C
Density (SDS)1.006 g/cm³g/cm³DIN 51757 at 20°C
Flash Point (SDS)125.0 °C°CDIN EN ISO 2719
Flash Point (SDS)125.0 °C°CPensky-Martens Closed Cup (PMCC)
Partition coefficient n-octanol/water (SDS)2.0-n-octanol/water
Self Ignition Temperature (SDS)230.0 °C°CEC Method A15
Vapor Pressure (SDS)1.05 hPahPaat 20°C
Viscosity (SDS)3.35 mPa.smPa.sDIN 53015 at 20°C
pH (SDS)3.5-4.0-at 20°C, 1000 g/L