Enhanced TDS
Identification & Functionality
- Base Chemicals Functions
- Blend
- No
- CASE Ingredients Functions
- Chemical Family
- Chemical Name
- Composite Materials Functions
- Country of Origin
- Function
- Coupling Agent, Surface Modifier, Adhesive Modifier, Adhesion Promoter, Sizing Agent
- Industrial Additives Functions
- Plastics & Elastomers Functions
- Product Code
- MITM04172
- Single Ingredient
- Yes
- Synonyms
- (3-Methacryloxypropyl)trimethoxysilane, (γ-Methacryloxypropyl)trimethoxysilane, [γ-(Methacryloyloxy)propyl]trimethoxysilane, 2-Methyl-2-propenoic acid 3-(trimethoxysilyl)propyl ester, 3-(Methylacryloxy)propyltrimethoxysilane, 3-(Trimethoxysilyl)propyl methacrylate, 3-(Trimethyoxysilyl)propyl methacrylate, 3-Methacryloxypropyltrimethoxisilane, 3-Methacryloyloxypropyltrimethoxysilane, 3-Trimethoxysilylpropyl 2-methylprop-2-enoate, Methacryloyloxypropyltrimethoxysilane, NSC 93591, Trimethoxy(3-methacryloxypropyl)silane, Trimethoxy(3-methacryloyloxypropyl)silane, γ-Methacryloxy propyl trimethoxyl silane
- Technologies
- Product Families
Features & Benefits
- CASE Ingredients Features
- Labeling Claims
- Materials Features
Applications & Uses
- Applicable Processes
- Compatible Polymers & Resins
- Industrial Additives End Use
- Markets
- Applications
- Product Applications
Dynasylan® MEMO is used as an adhesion promoter in applications such as:
- A constituent of glass fiber sizes (glass fiber fillers for unsaturated polyester resins and polyolefins).
- A finish for glass fabrics used in unsaturated polyester resins.
- A surface modifier for pigments and fillers for thermosets (unsaturated polyester, MMA), thermoplastics (polyesters and polyolefins) and elastomers.
- An additive for filled, peroxide-crosslinked elastomers.
- An additive for casting resins (unsaturated polyester, MMA).
Dynasylan® MEMO is either applied to the inorganic substrate as a pretreatment by dipping, spraying, or coating, or it may be added directly to the resin matrix (additive process). For pretreatment, the silane may be used:
- Neat
- Dissolved in an organic solvent
- Dissolved in a mixture of organic solvent and water for partial hydrolysis
- Completely hydrolyzed in aqueous solution.
To prepare an aqueous pretreatment solution, approx. 1-5 wt.% Dynasylan® MEMO is dissolved in water that has been adjusted to pH 3-4 with acetic acid. The solution will turn clear when the silane has fully hydrolyzed. The clear solution of Dynasylan® MEMO hydrolysate must be used within 1-2 days, if it turns cloudy again it may no longer be used. In the additive process, Dynasylan® MEMO is mixed with the resin or polymer before or together with the filler. A prerequisite for this method is the compatibility of the silane with the resin since the silane must not react prematurely with the resin.
When used correctly, Dynasylan® MEMO can achieve the following properties, for example in a highly-filled unsaturated resin system:
- Optimum dispersion of the fillers/pigments.
- Reduction in settling of the fillers/pigments.
- A reduction in viscosity and improved flow properties of the resin.
- Improved mechanical properties of the molded products.
- Improved resistance of the molded products to boiling water, acids, and alkalis.
Dynasylan® MEMO can be used as monomer during resin synthesis (e.g. latex dispersions). It may partially replace the methacrylf-functional monomers (usually 0.5-3%), but the quantities can go up to 20%. The thus incorporated silane functionality can lead to improved properties in the final application (e.g. coating or sealant) of such resins:
- Wet adhesion strength.
- Chemical resistance.
- Mar resistance.
Properties
- Physical Form
- Soluble In
- Product Reactivity
The alkoxy group of Dynasylan® MEMO hydrolyzes in the presence of water (and a suitable catalyst such as acetic acid) to produce methanol and reactive silanol (Si-OH) groups which can bond to a variety of inorganic substrates. The methacryl groups interacts with the polymer. 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 include unsaturated polyester, acrylates and vinyl esters.
Regulatory & Compliance
- Quality Standards
Packaging & Availability
Principal Information
- Group Principal Number
- S000006
- Principal
Storage & Handling
- Storage Conditions
In the unopened container Dynasylan® MEMO has a shelf life of min. 12 months from delivery.
Other
- Appearance
- Clear colorless liquid
- Color (SDS)
- Colorless to yellowish
- Immiscible In (SDS)
- Water
- Item Number
- Odor (SDS)
- Slightly aromatic
- Temperature Control
- No
- USA/DOT UN Number
- Not Applicable
- Optical Properties
Value Units Test Method / Conditions Refractive Index 1.432 - DIN 51423 at 20°C, n20/D - Physical Properties
Value Units Test Method / Conditions Boiling Point 255.0 °C °C DIN 51356 at 101.3kPa Density 1.04 g/cm³ g/cm³ DIN 51757 at 20°C Flash Point 110.0 °C °C DIN 51758 Viscosity 2.8 mPa.s mPa.s DIN 53015 at 20°C - SDS Physical and Chemical Properties
Value Units Test Method / Conditions Autoignition Temperature (SDS) 527.0 °F °F EC Method A15 at 1.013.5 - 1.030.7 hPa Boiling Point (SDS) 491.0 °F °F DIN 51356 at 101.3kPa Density (SDS) 1.05 g/cm³ g/cm³ OECD 109 at 20°C Flash Point (SDS) 230.0 °F °F DIN EN ISO 2719 Freeze Point (SDS) max. -20.0 °C °C Lower Explosion Limit (SDS) 0.9 %(V/V) %(V/V) Partition coefficient n-octanol/water (SDS) 2.1 - OECD 107 at 21°C, n-Octanol/Water Specific Gravity (SDS) 1.05 - OECD 109 Upper Explosion Limit (SDS) 5.4 %(V/V) %(V/V) Vapor Pressure (SDS) max. 0.1 hPa hPa at 20°C Viscosity (SDS) 2.8 mPa.s mPa.s DIN 53015 at 20°C - Shelf Life & Stability
Value Units Test Method / Conditions Shelf Life 12.0 mo mo