3-(2-Aminoethylamino)propyl-dimethoxymethylsilane Censil 602 is is used to promote adhesion between inorganic an organic surface, fillers or reinforcements and resins that react with amino groups.
Silane Coupling Agent N-[3-(Dimethoxymethylsilyl)propyl]ethylenediamine Censil 602 in Sealants
A colorless or pale-yellow transparent liquid, soluble in many common organic solvents such as ethanol, aether, toluene, dimethylbenzene etc. Easily hydrolyzing after damped.
Censil 602 N(beta-aminoethyl) gamma-amino propyl methyl dimethoxy-silane, is diamino functional silans that may be used over a broad range of applications.
They are used to promote the adhesion of amino-reactive resins such as silicone, salivated polyurethane, two-part urethanes and two-part epoxies to inorganic surfaces, plastic surfaces, and inorganic fillers or reinforcements.
Silquest® A-2120(Momentive); 1411(Evonik); GENIOSIL® GF95(Wacker); Sila-Ace® S310(Chisso)
Colorless, transparent liquid
Specific Gravity (ρ20), g/cm3
Boiling Point (760mmHg), ℃
Soluble in water (with reaction), alcohol and aromatic and
aliphatic hydrocarbons. Ketones are not recommended diluents.
Censil 602 may be used as an additive, so eliminating the need for special primers in numerous bonding applications. Censil 602 can display a good adhesion in the following system:
1. RTV Silicones and Hybrid Silane-Crosslinked Sealants Censil 602 added to one and two-part silicone-crosslinked sealants improves adhesion to a variety of substrates, including glass, aluminum and concrete. 602 provides enhanced adhesion performance without negatively impacting elongation. It is added at a loading of 0.5 to 1.0 percent by weight.
2. Polysulfide Sealants When added to one and two-part polysulfide sealants, Censil 602 provides better adhesion to a variety of substrates, including glass, aluminum and steel. Censil 602 is typically used at a loading of 0.5 to 1.0 percent by weight of the sealant. It disperses well into the sealant and produces cohesive failure in the sealant rather than adhesive failure of the bond between the sealant and the substrate. Furthermore, the use of silane Censil 69 cannot use primers which enhance the adhesion strength between the coating.
3. Plastic Sealants Censil 602, as a replacement for Poly aminoamide adhesion promoters in plastic sealants, can improve bonding to metal substrates. In addition to increased strength, the silane-modified plastic sealant has a better appearance than a system that uses Poly aminoamide adhesion promoters. Censil 602 modified systems have a very light color, and the cured compound is bubble-free.
4. Additive in Phenolic and Epoxy Molding Compounds Censil 602, as an additive in phenolic and epoxy molding compounds, reduces the water absorption of molded composites. This, in turn, leads to improved wet electrical properties, particularly at low frequencies.