Typical Technical Properties of LS-M81 3-(Diethylamino)propyltrimethoxysilane
Silfluo Code: | LS-M81 |
Chemical Name: Synonyms: | [3-(Diethylamino)propyl]trimethoxysilane (N, N-Diethyl-3-aminopropyl)trimethoxysilane; Diethylaminopropyltrimethoxysilane |
CAS No. : EINECS No. : | 41051-80-3 255-192-0 |
Molecular Formula: | C10H25NO3Si |
Molecular Weight: | 235.4 |
Appearance: | Colorless to yellowish transparent liquid |
Purity (by GC, %): | 95min |
Density (25°C, g/cm3): | 0.95 |
Refractive Index (nD 25°C): | 1.4130~1.4330 |
Boiling Point: | 95~110°C |
Flash Point: | 53°C |
Features of LS-M81 3-(Diethylamino)propyltrimethoxysilane
1. Intrinsic Catalytic Activity: The basic tertiary amine group acts as an effective built-in catalyst, drastically accelerating the hydrolysis and condensation rates of the methoxy groups upon exposure to atmospheric moisture.
2. Low-Yellowing Profile: The fully substituted (tertiary) nitrogen atom prevents the formation of highly colored chromophores, making it a superior choice for formulating transparent or light-colored adhesives and coatings.
3. Fast-Curing Kinetics: Equipped with three hydrolyzable methoxy groups, it ensures extremely rapid crosslinking and the formation of a dense, highly durable siloxane network.
4. Robust Adhesion: Forms strong, moisture-resistant covalent bonds between demanding organic polymer matrices and inorganic substrates such as glass, aluminum, and cold-rolled steel.
Applications of Silfluo LS-M81 3-(Diethylamino)propyltrimethoxysilane
1. Neutral-Cure RTV Silicone Sealants: Extensively utilized as a highly effective autocatalytic crosslinker and adhesion promoter in one-part (1K) neutral-cure Room Temperature Vulcanizing (RTV) silicone sealants, simultaneously accelerating the deep-cure rate and improving unprimed substrate adhesion.
2. Advanced Adhesives & SPUR Systems: Acts as a critical performance additive in silyl-terminated polyurethanes (SPUR) and hybrid MS polymers, optimizing the curing profile and enhancing interfacial bonding without triggering premature yellowing.
3. High-Performance Coatings: Deployed as a surface primer and reactive additive in industrial coatings to significantly elevate wet adhesion and corrosion resistance on metallic surfaces.
4. Mineral Filler Treatment: Serves as an advanced surface modifier for inorganic fillers, effectively reducing matrix viscosity and improving filler dispersion in specialty composite compounding.
Packing of LS-M81 3-(Diethylamino)propyltrimethoxysilane
In 190kg drum and 950kg IBC.
Safety and Storage of LS-M81 3-(Diethylamino)propyltrimethoxysilane
Keep in a cool, strictly dry, and well-ventilated environment, aggressively avoiding direct sunlight, heat, sparks, and open flames. Classified and shipped as a hazardous substance (Class 3 Flammable Liquid due to its 53°C flash point). The shelf life is a minimum of 12 months from the date of manufacture when stored in tightly sealed, original unopened containers.
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