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GENIOSIL® BAPTM
3-(n-Butylamino)propyltrimethoxysilane
GENIOSIL® BAPTM is a transparent, colorless liquid with an amin-like odor
- CAS No. 31024-56-3
- Empirical formula C10H25NO3Si
- Molecular weight 235.45 g/mol
Properties
GENIOSIL® BAPTM is an alkoxysilane with an amino-functional group. It´s a clear, colorless liquid with a characteristic amine odor. Due to the nature of the amino group, this substance reacts as a strong base. The silane hydrolyzes autocatalytically in the presence of moisture (methanol is released) to form silanols, which can subsequently react with themselves to produce siloxanes or can bind to inorganic substrates. As a typical amine, GENIOSIL® BAPTM can also interact with numerous organic polymers and thus function as a molecular bridge between organic and inorganic substrates.
In addition to its application as an adhesion promoter in formulations and primers, GENIOSIL® BAPTM functions as a surface modifier for fillers and pigments, where it improves the dispersibility of the filler and the mechanical properties - such as flexural strength, tensile strength and modulus - of the composites. The silane also reduces the filler's sedimentation tendency in the uncured polymer. GENIOSIL® BAPTM also greatly increases water (vapor) and corrosion resistance.
1. General processing information:GENIOSIL® BAPTM is highly miscible with standard organic solvents such as ethers and hydrocarbons. Mixing with ketones results in imine formation, while mixing with alcohols other than methanol leads to an autocatalytic exchange of alkoxy groups until the system reaches thermodynamic equilibrium. GENIOSIL® BAPTM shows typical amine behavior when exposed to acids, epoxides or isocyanates. GENIOSIL® BAPTM is highly soluble in neutral water and undergoes hydrolysis. Caution: due to the enthalpy of solution, mixing GENIOSIL® BAPTM with water is exothermic. Due to the highly reactive nature of GENIOSIL® BAPTM, contact with moisture must be avoided during processing to prevent undesired hydrolysis.
2. GENIOSIL® BAPTM as a surface modifier:
Fillers are treated either with pure GENIOSIL® BAPTM or a solution thereof. It may be necessary to pretreat the substrate with water. The modified filler is preferably bonded to the organic material, e.g. an epoxy resin, by mixing it with a standard curing agent. In an alternative procedure referred to as "blending", GENIOSIL® BAPTM is added directly to the polymer - either before the organic materials is compounded with the filler or at the same time. A prerequisite for the blending process is that GENIOSIL® BAPTM and the polymer are compatible and that the resin and GENIOSIL® BAPTM do not react prematurely.
3. GENIOSIL® BAPTM as an adhesion promoter in formulations:
In silane crosslinking formulations (e.g. silane- terminated polyethers or polyurethanes and polysiloxanes), GENIOSIL® BAPTM may be added to the formulation as an adhesion promoter. Processing is effected by means of standard mixing methods. Usually, about 1 - 2 wt % silane is added to the formulation.
Packaging
GENIOSIL® BAPTM is available in different packaging units:
- 950 KG IBC
- 190 KG Drum
- 25 KG Can
Storage
The 'Best use before end' date of each batch is shown on the product label. Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.
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Ann Arbor, MI 48108
United States
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