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
- MITM04201
- RTU Product Type
- Single Ingredient
- Yes
- Synonyms
- (3-Mercaptopropyl)trimethoxysilane, (3-Thiopropyl)trimethoxysilane, (γ-Mercaptopropyl)trimethoxysilane, 3-(Sulfanylpropyl)trimethoxysilane, 3-(Trimethoxysilyl)-1-propanethiol, 3-(Trimethoxysilyl)propanethiol, 3-(Trimethoxysilyl)propyl mercaptan, 3-Mercaptopropyl trimethoxylsilane, 3-MPTMS, Trimethoxy-3-mercaptopropylsilane, γ-Thiolpropyltrimethoxysilane
- Technologies
- Product Families
Features & Benefits
- CASE Ingredients Features
- Materials Features
Applications & Uses
- Compatible Substrates & Surfaces
- Markets
- Applications
- Product Applications
Dynasylan® MTMO is used in applications such as:
- Glass composites: as a finish or a size ingredient
- Glass and metal primer
- Sealants and adhesives: as a primer, additive, or for chemical modification of the polymer
- Mineral filled polymers: for pretreatment of fillers and pigments or as an additive
- Crosslinking of polymers
Important product effects that can be achieved through the use of Dynasylan® MTMO include:
- Compression set
- Improved mechanical properties, e.g. flexural strength, tensile strength, impact strength and modulus of elasticity, tear strength
- Improved moisture and corrosion resistance
- Improved electrical properties, e.g. dielectric constant, volume resistivity
- Increased thermal resistivity
Dynasylan® MTMO can also improve such processing properties as:
- Cure time
- Adhesion
- Filler dispersion
- Rheological behavior: (e.g. viscosity reduction)
- Higher filler loading
- Processing Information
- Dynasylan® MTMO can be used as a primer (i.e. a ca. 0.5-10 wt.%. solution in an organic solvent such as alcohol), as an ingredient in a solution, or neat.
- A chemical modification can be achieved by reaction of Dynasylan® MTMO with suitable functional monomers or polymers.
Properties
- Physical Form
- Soluble In
- Product Reactivity
- In the presence of water, the methoxy groups of Dynasylan® MTMO hydrolyze and form reactive silanol groups which can bond to a variety of inorganic substrates.
- The organophilic mercapto end of Dynasylan® MTMO can react with a suitable polymer.
- Hydrolysis of Dynasylan® MTMO is catalyzed by acids.
- Examples of suitable inorganic substrates are glass, glass fibers, silicia, quartz, sand, cristobalite, mica kaolin, talc, other silicate fillers and metals.
- Dynasylan® MTMO may be used with such polymers as polyurethanes, polysulfides, sulfurcured and metal oxidecured elastomers.
- Product modifications are possible by using Dynasylan® MTMO in addition or grafting reactions with suitable monomers or polymers (e.g. isocyanates, PVC etc.).
- An SiOSi crosslinking can take place via the silicon functional groups of the silane.
Regulatory & Compliance
Packaging & Availability
Storage & Handling
- Storage Conditions
- In the unopened container Dynasylan® MTMO has a shelf life of at least one year.
Other
- Appearance
- Clear colorless to light yellow liquid
- Boiling Point
- 85.0 °C
- Boiling Point (SDS)
- 85.0 °C
- Color (SDS)
- Colorless to yellowish
- Density
- 1.05-1.06 g/cm³
- Density (SDS)
- 1.06 g/cm³
- Flash Point
- 96.0 °C
- Flash Point (SDS)
- 85.0 °C
- IATA/ICAO Emergency Response Guide
- 9L
- IATA/ICAO Proper Shipping Name
- Environmentally hazardous substance, liquid, N.O.S. (3-mercaptopropyl-trimethoxysilane)
- IATA/ICAO UN Number
- UN 3082
- IMO/IMDG EmS Fire
- F-A
- IMO/IMDG EmS Spill
- S-F
- IMO/IMDG Proper Shipping Name
- Environmentally hazardous substance, liquid, N.O.S. (3-mercaptopropyl-trimethoxysilane)
- IMO/IMDG UN Number
- UN 3082
- Item Number
- Odor
- Slightly mercaptan odor
- Odor (SDS)
- Ester like
- Principal
- Refractive Index
- 1.445
- Shelf Life
- 1.0 yr
- USA/DOT Emergency Response Guide Number
- 128
- USA/DOT Proper Shipping Name
- Combustible liquid, N.O.S. (3-mercaptopropyl-trimethoxysilane)
- USA/DOT UN Number
- NA 1993
- Vapor Pressure (SDS)
- 0.2 hPa
- Viscosity
- 2.0 mPa.s
- Viscosity (SDS)
- 2.0 mPa.s
- Optical Properties
Value Units Test Method / Conditions Refractive Index 1.445 - DIN 51423 at 20°C, n20/D - Shelf Life & Stability
Value Units Test Method / Conditions Shelf Life 1.0 yr yr - Physical Properties
Value Units Test Method / Conditions Boiling Point 85.0 °C °C DIN 51356 at 4 hPa Density 1.05-1.06 g/cm³ g/cm³ DIN 51757 At 20°C Flash Point 96.0 °C °C DIN 51758 Viscosity 2.0 mPa.s mPa.s DIN 53015 At 20°C - SDS Physical and Chemical Properties
Value Units Test Method / Conditions Boiling Point (SDS) 85.0 °C °C At 4 Hpa Density (SDS) 1.06 g/cm³ g/cm³ DIN 51757 at 20°C Flash Point (SDS) 85.0 °C °C DIN 51758 Vapor Pressure (SDS) 0.2 hPa hPa at 20°C Viscosity (SDS) 2.0 mPa.s mPa.s DIN 53015 at 20°C