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Quality 3-AMINOPROPYLTRIS(TRIMETHYLSILOXY)SILANE (CAS NO. 25357-81-7) factory
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Quality 3-AMINOPROPYLTRIS(TRIMETHYLSILOXY)SILANE (CAS NO. 25357-81-7) factory
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3-AMINOPROPYLTRIS(TRIMETHYLSILOXY)SILANE (CAS NO. 25357-81-7)

Specifications
Highlight:

C12H35NO3Si4 Amino Silanes

,

High Flexibility 3-aminopropyltris(trimethylsiloxy)silane

,

cas 25357-81-7
Product Name:
3-AMINOPROPYLTRIS(TRIMETHYLSILOXY)SILANE
Appearance:
Clear Liquid
MF:
C12H35NO3Si4
MW:
353.75
M.P:
<0°C
B.P:
152 °C
Density:
0.891 G/mL At 20 °C(lit.)
Flash point:
>110°C
Tags:

ethyltrimethoxysilane

methylsilane

silane
Key Attributes
Brand Name: SISO
Model Number: 25357-81-7
Place of Origin: China
Payment Terms: T/T
Product Description

1. High-Efficiency Interface Compatibility Modifier for Organic-Inorganic Composites

3-Aminopropyltris(trimethylsiloxy)silane is a high-performance branched amino-functional siloxane monomer integrating flexible trisiloxy saturated skeleton and active terminal amino groups. The ultra-flexible multi-trimethylsiloxy branched structure provides excellent molecular ductility and low surface tension, while the active primary amino group enables strong chemical interaction and covalent grafting with epoxy, polyurethane, phenolic resin and other polar polymer matrices. It effectively improves the interfacial wetting ability and bonding strength between inorganic fillers and organic resins, eliminates interfacial voids, delamination and stress concentration defects of composite systems, and significantly enhances the mechanical toughness, structural compactness and long-term service stability of composite materials.

2. High-Flexibility & Low-Stress Silicone Resin Modified Precursor

Different from conventional rigid linear aminosilanes, this branched siloxane possesses a multi-branched fully methylated siloxy skeleton with ultra-high molecular flexibility and low internal stress characteristics. It can participate in copolymerization and crosslinking curing of silicone resin systems through active amino sites. The introduced flexible branched siloxane segments effectively balance the structural rigidity of traditional silicone resins, optimize molecular chain stacking state, reduce curing shrinkage and internal stress, and improve the low-temperature toughness and anti-cracking performance of cured films. It is an ideal functional precursor for the preparation of high-flexibility, high-transparency and low-stress modified silicone resin coatings and adhesive systems.

3. Functional Carrier Modifier & Catalyst Immobilization Medium

The uniformly distributed terminal amino active sites on the molecular surface provide excellent metal coordination and adsorption capabilities. This branched aminosiloxane modifier can be stably grafted on the surface of silica gel, glass and porous inorganic carriers, forming dense and uniform amino-functionalized modified layers. The exposed amino groups can effectively anchor transition metal ions and noble metal active components, prevent catalyst agglomeration and shedding, and improve the dispersion uniformity and cyclic service life of catalytic active centers. It is widely applicable to the surface functionalization of catalytic carriers, the preparation of supported heterogeneous catalysts and the research of adsorption separation materials.

4. High-Stability Hydrophilic & Anti-Fouling Functional Material Intermediate

Combining the low surface energy hydrophobic characteristics of fully methylated siloxane branched chains and the hydrophilic polar adjustment performance of amino groups, this monomer achieves controllable hydrophilic-hydrophobic balance modification effect. The inert branched siloxane skeleton endows the material with excellent weather resistance, solvent resistance and anti-aging performance, while the polar amino groups optimize surface hydrophilicity and antifouling adhesion resistance. It overcomes the defects of single hydrophobicity of traditional silicone modifiers and the poor weather durability of pure hydrophilic modifiers, and can be used for the preparation of self-cleaning coatings, breathable functional films and high-stability hydrophilic protective materials.
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