Features Of Evonik Dynasylan MEMO Silane Coupling Agent
Dual Reactivity - Combines hydrolyzable methoxy groups with polymerizable methacrylate
Excellent Adhesion - Significantly improves bonding to glass, metals and minerals
Enhanced Durability - Improves resistance to water, chemicals and environmental stress
Versatile Processing - Compatible with solvent, aqueous and direct addition methods
Typical Applications Of Evonik Dynasylan MEMO Silane Coupling Agent
Fiber Reinforced Plastics - Glass fiber sizing for unsaturated polyesters and acrylics
Composite Materials - Coupling agent for mineral-filled thermoplastic and thermoset systems
Coatings & Sealants - Adhesion promoter in protective coatings and sealant formulations
Rubber Compounds - Additive for peroxide-cured elastomer systems
Dental Materials - Surface modification for dental composites and restorative materials
Specifications Of Evonik Dynasylan MEMO Silane Coupling Agent
| Chemical Name | 3-Methacryloxypropyltrimethoxysilane |
| Functionality | Methacrylate Silane |
| Appearance | Colorless transparent liquid |
| Solubility | Alcohols, Hydrocarbons |
| Hydrolysis Requirement | Acid catalyst (pH 3-4) |
| Reactive Groups | Methacrylate, Methoxy |
| Solution Stability | 1-2 days (aqueous) |
| Shelf Life | 6 months |
Evonik Dynasylan MEMO Silane Coupling Agent – Frequently Asked Questions (FAQ)
Q1: What is the primary function of Dynasylan MEMO in composite formulations?
A: Dynasylan MEMO acts as a bifunctional coupling agent that enhances interfacial adhesion between inorganic fillers (e.g., silica, glass, minerals) and organic polymer matrices (e.g., epoxy, polyurethane, acrylics), improving mechanical strength, moisture resistance, and long-term durability of the final composite.
Q2: How is Dynasylan MEMO typically incorporated into a formulation?
A: It can be added directly to the resin phase, pre-treated onto filler surfaces via solution or neat application, or introduced during compounding—method selection depends on processing conditions, filler type, and desired dispersion quality. Pre-hydrolysis is generally not required due to its methoxy functionality offering good hydrolytic stability.
Q3: Is Dynasylan MEMO compatible with common epoxy curing agents?
A: Yes, Dynasylan MEMO is broadly compatible with amine-based, anhydride, and catalytic curing systems used in epoxy resins. Its epoxy-functional group participates in co-curing reactions, contributing to crosslink density without significantly inhibiting cure kinetics under standard processing conditions.
Q4: What storage conditions are recommended for optimal shelf life?
A: Store in tightly sealed original containers under cool, dry conditions, protected from moisture and direct sunlight. Under these conditions, unopened product typically maintains performance characteristics for at least 12 months from date of manufacture.
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