SCA-A64M N-(3-(Trimethoxysilyl)propyl)butylamine (CAS No. 31024-56-3) CAS NO.31024-56-3

abstract

sca-a64m is a versatile amino functional coupling agents used over a broad range of applications to provide superior bonds between inorganic substrates and organic polymers. the secondary amine function reacts with a wide array of thermoset, thermoplastic and elastomeric materials.

identification
name:n-(3-(trimethoxysilyl)propyl)butylamine
synonyms: n-(3-trimethoxysilylpropyl)butan-1-amine
molecular formula: c₁₀h₂₅no₃si
molecular weight:235.40
cas registry number: 31024-56-3
einecs:250-437-8

equivalents

evonik degussa 1189

properties
appearance: yellowish, transparent liquid
specific gravity (ρ₂₀), g/cm³: 0.950
boiling point(760mmhg), ℃: 238
viscosity(20℃), mpa.s: 2.5
solubility :soluble in alcohol and aromatic and aliphatic hydrocarbons. react with water.

application
n-(n-butyl)-3-aminopropyltrimethoxysilane (cas no. 31024-56-3), silane coupling agent sca-a64m, is a bifunctional secondary amino-functional silane. it is an important additive for many applications. examples are:
1. silane-endcapped polyurethanes: silane-terminated polyurethanes can be prepared by reacting traditional nco-terminated urethane prepolymers with sca-a64m. it can react very fast with free isocyanate groups and lead to a high converted silane-endcapped product. side reactions can be significantly reduced. sca-a64m is the most recommended silane for endcapping polyurethanes. it leads to colorless low-viscosity pu prepolymers with improved uv stability and reduced yellowing tendency of sealants. another benefit of sca-a64m is that it does not contain traces of toxic aniline.
examples of applications where sca-a64m used include polyurethanes for structural adhesives, parquet adhesives and over-paintable hybrid sealant.
2. glass fiber/glass fabric composites: as a finish or size constituent
3. mineral fiber insulating materials and abrasives: as an additive to phenolic resin binders
4. foundry resins: as an additive to phenolic, furan and melamine resins
5. sealants and adhesives: as a primer or additive and for chemical modification
6. mineral-filled polymers (composites) or hffr cables: for pretreatment of fillers and pigments
7. paints and coatings: as an additive and primer for improving adhesion to the substrate.
8. as a primer for glass and metal.