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Dynasylan® MEMO

Dynasylan® MEMO is a revolutionary solution for enhancing polymer and resin performance. As a versatile surface modifier and coupling agent, it excels in various applications. This product boasts exceptional chemical resistance, improving filler dispersion and mechanical properties in plastics and elastomers. With features like acid and alkali resistance, low viscosity, and good wet adhesion strength, Dynasylan® MEMO transforms materials into high-performance wonders. Experience its benefits in cables, pipes, and more.

Brand: Dynasylan (42 products)

Chemical Name: 3- (Trimethoxysilyl) propyl methacrylate

CAS Number: 2530-85-0

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

Chemical Family: Methacrylates

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

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Features & Benefits

Base Chemicals Features
CASE Ingredients Features
Materials Features
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.

Applications & Uses

Markets
Applications
Applicable Processes
Compatible Polymers & Resins
Compatible Substrates & Surfaces
Base Chemicals End Uses
Industrial Additives End Use
Plastics & Elastomers End Uses
Application Characteristics
  • Dynasylan® MEMO is used as adhesion promoter in application 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
    • as a surface modifier for pigments and fillers for thermosets (unsaturated polyester, MMA), thermoplastics (polyesters and polyolefins)and elastomers
    • as an additive for filled, peroxide-crosslinked elastomers l as 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 turns 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 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 methacryl-functional monomers (usually 0.5-3%, but sometimes 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
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

Properties

Physical Form
Appearance
Clear colorless liquid.
Soluble in
Alcohols, Aliphatic and aromatic hydrocarbons
Technical Data
ValueUnitsTest Method / Conditions
Density (at 20°C)approx. 1.04g/cm³DIN 51757
Boiling Point (at 1013 hPa)approx. 255°CDIN 51356
Viscosity (at 20°C)approx. 2.8mPa.sDIN 53015
Flash Pointapprox. 110°CDIN 51758
Refractive Index (n 20, D)approx. 1.432-DIN 51423
Residual Moisture0.22%-
Evolved VOC (Methanol)387.0g/kg-

Regulatory & Compliance

Technical Details & Test Data

Couples Fillers and Polymers
  • An important characteristic of silanes is that they allow the coupling of inorganic mineral fi llers and organic polymers through a chemical bond.
  • As a conse-quence of the coupling, the mechanical properties of the fi lled compounds are significantly improved.
  • Examples include the use of silane-treated glass fi bers in polypropylene, quartz in unsaturated poly-ester, and aluminum trihydroxide in ethyl vinyl acetate.

  • Scanning electron microscope (SEM) images of the broken edge of a quartz-fi lled unsaturated polyester.
  • Silane coupling improves the adhesion of the fi ller to the polymer. The gap between the fi ller and the polymer is eliminated.

Packaging & Availability

Packaging Type
Packaging Information

Dynasylan® MEMO is supplied in 25 kg, 215 kg drums and 1.000 kg bulk containers.

Storage & Handling

Shelf Life
12 months