Molecular weight: 221.4
CAS No.: 919-30-2
Chemical name: γ-Aminopropyltriethoxysilane
Properties:
ZINCA-550 is a bifunctional silane possessing a reactive primary amino group and hydrolyz- able ethoxysilyl groups. The dual nature of its reactivity allows it to bind chemically to both inorganic materials (e.g. glass, metals, fillers) and organic polymers (e.g. thermoplastics, thermosets, elastomers) thus functioning as an adhesion promoter, crosslinker, and/or surface modifier. It also greatly increases water (vapor) and corrosion resistance.
ZINCA-550 is a clear, colorless low-viscosity liquid with a characteristic amine odor. It is soluble in alcohols, and aliphatic or aromatic hydrocarbons. In addition it is completely and immediately soluble in water (with reaction).
Reactivity：
In the presence of water, the ethoxy groups of ZINCA-550 hydrolyze and form reactive silanol (Si-OH) groups which can bond to a variety of inorganic substrates. Upon hydrolysis ethanol is released. The organophilic amino group can react with a suitable polymer. The hydrolysis takes place autocatalytically and the pH of the aqueous solution is about 11.
Examples of suitable inorganic substrates are glass, glass fibers, glass wool, mineral wool, silicic acid, cristobalite,
wollastonite, mica and aluminum trihydrate, magnesium dihydrate, kaolin, talc, other silicate fillers, metal oxides and metals.
In the presence of water, the ethoxy groups of ZINCA-550 hydrolyze and form reactive silanol (Si-OH) groups which can bond to a variety of inorganic substrates. Upon hydrolysis ethanol is released. The organophilic amino group can react with a suitable polymer. The hydrolysis takes place autocatalytically and the pH of the aqueous solution is about 11.
Examples of suitable inorganic substrates are glass, glass fibers, glass wool, mineral wool, silicic acid, cristobalite,
wollastonite, mica and aluminum trihydrate, magnesium dihydrate, kaolin, talc, other silicate fillers, metal oxides and metals.
