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(3-AMINOPROPYL)TRIETHOXYSILANE

CAS NUMBER: 13822-56-5

EC NUMBER: 237-511-5

MOLECULAR FORMULA: H2N(CH2)3Si(OCH3)3

MOLECULAR WEIGHT: 179.29


(3-Aminopropyl)triethoxysilane (APTS) is a surface treatment used to chemically couple various ligands to glass or silica surfaces such as glass slides. 
(3-aminopropy)ltriethoxysilane is first coupled to glass or silica through the silane. 
Compounds of interest are then coupled to the newly added amino groups directly, or additional chemistries are applied using the amino function prior to coupling.
(3-Aminopropyl)triethoxysilane (APTES) is used as an amino-silane which is mainly used as a dispersant. 
APTES attaches an amino group to the functional silane for bio-conjugation.

Aminopropyl)triethoxysilane (APTES) is an aminosilane frequently used in the process of silanization, the functionalization of surfaces with alkoxysilane molecules. 
(3-Aminopropyl)triethoxysilane can also be used for covalent attaching of organic films to metal oxides such as silica and titania.
APTES is a solution used for slide preparation to aide in tissue adhesion for immunohistochemistry.
(3-Aminopropyl)triethoxysilane is a silylation agent used to treat glass slides and create a reactive film (primary Amines). Treated surface can be used to crosslink and immobilize proteins and other molecules.

APTES is used to treat the glass slide before mounting tissue sections during immunohistochemistry (IHC).
(3-Aminopropyl)triethoxysilane is one of numerous organo-metallic compounds sold by American Elements under the trade name AE Organo-Metallics for uses requiring non-aqueous solubility such as recent solar energy and water treatment applications. Similar results can sometimes also be achieved with Nanoparticles and by thin film deposition. Note American Elements additionally supplies many materials as solutions. (3-Aminopropyl)triethoxysilane is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. 

(3-Aminopropyl)triethoxysilane (APTES) is a highly effective silane coupling agent that is used on both glass, mica and a host of other substrates to enhance adhesion. 
(3-Aminopropyl)triethoxysilane is the treatment of choice for those wanting to encourage adhesion of cells, self-assembled arrays, and other features on the nano scale destined for study by AFM or other nano-microsocopic methods.

(3-Aminopropyl)triethoxysilane (APTES) is an aminosilane frequently used in the process of silanization, the functionalization of surfaces with alkoxysilane molecules. 
(3-Aminopropyl)triethoxysilane can also be used for covalent attaching of organic films to metal oxides such as silica and titania.
(3-Aminopropyl)triethoxysilane is the earliest widely used coupling agent, so far has been more than 40 years of history. One end of the structure is provided with an active group, such as amino and vinyl, which can react with synthetic resin molecules such as epoxy, phenolic, polyester.

The other end is alkoxy (such as methoxy, ethoxy etc.) or chlorine atoms which connected with silicon, and these groups. These groups can react with the hydroxyl groups on the surface of glass, minerals, inorganic fillers and generate reactive silicon alcohol in the presence of water in the aqueous solution or air. Therefore, silane coupling agent is often used in silicate-filled epoxy, phenolic, polyester resin and so on.

In addition, (3-Aminopropyl)triethoxysilane can also be used in the production of glass fiber reinforced plastic, in order to improve (3-Aminopropyl)triethoxysilanes mechanical strength and resistance to wet environment. The organic group of the silane coupling agent has selectivity to the reaction of the synthetic resin. Generally, these organic groups are insufficiently reactive with synthetic resins such as polyethylene, polypropylene, polystyrene and so on, so that the coupling effect is poor. In recent years, new types of silane coupling agents have been developed which have a good coupling effect on polyolefins, but (3-Aminopropyl)triethoxysilane is not widely used in cost and other properties.

Silane coupling agent, also known as silane treatment agent, primer. The general formula is Y (CH2) nSiX3, (3-Aminopropyl)triethoxysilane is an organic silicon monomer with two or more different reactive groups in the molecule, which can be chemically bonded (coupled) with organic and inorganic materials, and increase the bonding property of the two materials.

In the general formula, N is an integer of 0 to 3; X is a hydrolyzable group, such as chlorine, methoxy, ethoxy, acetoxy and the like, and is easily hydrolyzed to form a silanol which can be combined with an inorganic substance; Y is an organic functional group, such as a vinyl group, an amino group, an epoxy group, a methacryloyloxy group, a mercapto group and the like, which can react with organic compounds and combine. The performance of typical silane coupling agent is as follows: For glass fiber, inorganic filler surface treatment.(3-Aminopropyl)triethoxysilane is used as a sealant, adhesive and paint thickener.

(3-Aminopropyl)triethoxysilane also can be used to the immobilized enzyme attached to the surface of glass substrate, to sand control in oil well drilling, to prevent sand from drilling, to brick surface with hydrophobic, to make the fluorescent lamp coating have high surface resistance, and to improve the moisture absorption properties of organic matter on the surface of glass in the medium of liquid chromatography. (3-Aminopropyl)triethoxysilane is catalyst in the platinum by the chloroform and alkene with the active group  and then obtained by alcoholysis.
The molecular structure and application information of silane coupling agent 3-aminopropyltriethoxysilane are edited and edited by chemcialbook andy.

USES of (3-Aminopropyl)triethoxysilane:

APTES can be used to covalently bond thermoplastics to poly(dimethylsiloxane) (PDMS).Thermoplastics are treated with oxygen plasma to functionalize surface molecules, and subsequently coated with an aqueous 1% by volume APTES solution. PDMS is treated with oxygen plasma and placed in contact with the functionalized thermoplastic surface.

A stable, covalent bond forms within 2 minutes.
APTES can be used to covalently bond thermoplastics to poly(dimethylsiloxane) (PDMS).Thermoplastics are treated with oxygen plasma to functionalize surface molecules, and subsequently coated with an aqueous 1% by volume APTES solution. PDMS is treated with oxygen plasma and placed in contact with the functionalized thermoplastic surface.

A stable, covalent bond forms within 2 minutes.
(3-Aminopropyl)triethoxysilane is a versatile amino-functional coupling agent used over a broad range of applications to provide superior bonds between inorganic substrates and organic polymers. The silicon-containing portion of the molecule provides strong bonding to substrates. The primary amine function reacts with a wide array of thermoset, thermoplastic, and elastomeric materials.

Silane coupling agent  (3-Aminopropyl)triethoxysilane is applied in plastic products (including cables, glassfiber-reinforcement plastics etc.), rubber products, adhesives, coatings, pigments dispersion, inks, magnetic materials (plastic magnet and rubber magnet), metallic casting resins and resins concrete, etc.

(3-Aminopropyl)triethoxysilane maximizes the physical and electrical properties of mineral-filled phenolics, epoxies, polyamides, polybutylene terephthalate, and a host of other thermoset and thermoplastic composites. Filler wetting and dispersibility in the polymer matrix are also improved.

(3-Aminopropyl)triethoxysilane improves adhesion between magnetic powder and organic resins and dispersion of magnetic powder inorganic resins. Also these magnetic appliances attain higher magnetic orientation and excellent magnetic properties, higher mechanical strength, good processability, excellent weathering resistance.

In glass-reinforced thermoset plastics, (3-Aminopropyl)triethoxysilane enhances the flexural, compressive, and interlaminar shear strengths before and after exposure to humidity. (3-Aminopropyl)triethoxysilane greatly improves wet electrical properties.
With nitrile, polysulfide, expoxy, urethane, and adhesives and sealants, (3-Aminopropyl)triethoxysilane improves pigment dispersion and maximizes adhesion to glass, aluminum, and steel.

When (3-Aminopropyl)triethoxysilane is used, glass-reinforced thermoplastics, polyamides, polyesters, and polycarbonates exhibit increased flexural and tensile strengths before and after wet exposure.
In glass fiber and mineral wool insulation, as a phenolics resin binder additive, 3-(3-Aminopropyl)triethoxysilane imparts moisture resistance and allows recovery after compression.

In shell molding foundry applications, (3-Aminopropyl)triethoxysilane strengthens the bond between the phenolics binder and foundry sand.
In grinding wheels, (3-Aminopropyl)triethoxysilane promotes an improved, water-resistant bond between the abrasive grit and phenolics resin binder.

(3-Aminopropyl)triethoxysilane is an excellent adhesion prompter in urethane, epoxy, and acrylic latex coatings, adhesives, and sealants.
Forms aminopropyl derivative of glass, an adsorbent for affinity chromatography. (3-Aminopropyl)triethoxysilane is used to prepare positively charged slides suitable for use with various immunohistochemical and in situ hybridization procedures.


-(3-Aminopropyl)triethoxysilane application of polymer with epoxy, phenolic, melamine, nylon, PVC, polyacrylic acid, polyurethane, polysulfide rubber, nitrile rubber etc.
-For glass fiber treatment agent and dental adhesives.
-(3-Aminopropyl)triethoxysilane is used in thermoplastic and thermosetting resins which with mineral filled phenolic, polyester, epoxy, PBT, polyamide, carbonate, can greatly improve the physical and mechanical properties and wet electrical performance, such as enhance the plastic wet and dry bending strength, compressive strength, shear strength, improve the wettability and dispersion of fillers in polymer.

(3-Aminopropyl)triethoxysilane is an excellent adhesion promoter and can be used in polyurethane, epoxy, nitrile, phenolic adhesive and sealing material and can improve the dispersibility of pigment and improve the adhesion to glass, aluminum and iron metal. (3-Aminopropyl)triethoxysilane is also suitable for polyurethane, epoxy and acrylic latex paint. In resin sand casting, (3-Aminopropyl)triethoxysilane can enhance the adhesion of resin silica sand, improve the sand strength and moisture resistance. In the production of glass fiber cotton and mineral cotton, (3-Aminopropyl)triethoxysilane can improve the moisture resistance and increase the compression resilience when be added to the phenolic resin binder.

(3-Aminopropyl)triethoxysilane contributes to the improvement of the adhesion and water resistance of phenolic resin adhesives for abrasion resistant self-hardening sand in the manufacture of grinding wheels. (3-Aminopropyl)triethoxysilane is used in thermoplastic and thermosetting resins which with mineral filled phenolic, polyester, epoxy, PBT, polyamide, carbonate, can greatly improve the physical and mechanical properties and wet electrical performance, such as enhance the plastic wet and dry bending strength, compressive strength, shear strength, improve the wettability and dispersion of fillers in polymer.

(3-Aminopropyl)triethoxysilane is an excellent adhesion promoter,used in acrylic coatings, adhesives and sealants. Aminosilanes improve pigment dispersion and improve adhesion to glass, aluminum and steel for sulfide, polyurethane, RTV, epoxy, nitrile, phenolic resin adhesives and sealants. In the production of glass fiber cotton and mineral cotton, (3-Aminopropyl)triethoxysilane can improve the moisture resistance and increase the compression resilience when be added to the phenolic resin binder. (3-Aminopropyl)triethoxysilane contributes to the improvement of the adhesion and water resistance of phenolic resin adhesives for abrasion resistant self-hardening sand in the manufacture of grinding wheels.

USAGE AND APPLICATION AREAS of (3-Aminopropyl)triethoxysilane:

-Coupling agent for plastics; 
-effects immobilization of enzymes; 
-sizing of glass fibers for making laminates; 
-filler for thermosets, thermoplastics; 
-as primer or additive, esp. in epoxy, phenolic, PU, vinyl plastisols and imide systems; 
-in food-pkg. adhesives

(3-Aminopropyl)triethoxysilane APPLICATIONS:

Forms aminopropyl derivative of glass, an adsorbent for affinity chromatography. (3-Aminopropyl)triethoxysilane is used to prepare positively charged slides suitable for use with various immunohistochemical and in situ hybridization procedures. Recently (3-Aminopropyl)triethoxysilane has been used to prepare dye-doped silica nanoparticles with minimal aggregation and minimal nonspecific binding with biomolecules.

(3-Aminopropyl)triethoxysilane is used in a preparation of a series of tenary composite films of polyimide/SiO/polydiphenylsiloxane with good optical transparency.
Self-assembled monolayer (SAM) of APTES can be used to improve the adhesion of graphene flakes and SiO2 to enable better contact with the metal electrodes. These electrodes may be used as electro-responsive tools for bio-sensing applications. (3-Aminopropyl)triethoxysilane can be used to functionalize silane diazirine for fiber optic biosensor application. Hollow microcarriers (HMCs) can be surface modified with APTES which may be used for regenerative medicines and recombinant cells in biopharmaceutical industries.
(3-Aminopropyl)triethoxysilane is used to prepare positively charged slides suitable for use with various immunohistochemical and in situ hybridization procedures.


-Coatings, Adhesives and Sealants:

The aminosilane is an excellent adhesion promoter in acrylic coatings, adhesives and sealants. With polysulfide, urethane, RTV silicones, epoxy, nitrile, phenol formaldehyde resin, adhesives and sealants, (3-Aminopropyl)triethoxysilane improves pigment dispersion and maximizes adhesion to glass, aluminum and steel.

-Fiber glass Reinforcement:

In fiberglass reinforced thermosetting plastics and thermoplastics, the gamma-aminopropyltriethoxysilane enhances the flexural, tensile and interlaminar shearing strengths before and after exposure to humidity. (3-Aminopropyl)triethoxysilane greatly improves wet electrical properties. Fiberglass reinforced thermoplastics, polyamides, polyesters and polycarbonates exhibit increased flexural and tensile strengths before and after wet exposure when this silane is used.

-Glass Fiber and Mineral Wool Insulation:

As a phenolic resin binder additive, the gamma-aminopropyltriethoxysilane  imparts moisture resistance and allows recovery after compression

-Mineral Filler and Resin Systems:

The aminosilane maximizes the physical and electrical properties of mineral-filled phenolics, polyester resin, epoxies, polyamides, polycarbonate and a host of other thermoset and thermoplastic composites. Wettability and dispersibility of filler in the polymer matrix are also improved.

-Foundry Application of (3-Aminopropyl)triethoxysilane:

In shell molding, the aminosilane strengthens the bond between the phenolic binder and foundry sand.

-Grinding Wheel Manufacture:

The aminosilane promotes an improved, water resistant bond between the abrasive grit and phenolic resin binder.

-Wood plastic composite production:

The mechanical properties of (3-Aminopropyl)triethoxysilane composites made of wood meal, such as impact strength, bending strength and bending modulus, will be improved after these composites are processed with (3-Aminopropyl)triethoxysilane.

FEATURES of (3-Aminopropyl)triethoxysilane:

-Crosslinking agents such as BS3, EDC and Sulfo-SMCC can be used to immobilize proteins, peptides, modified DNA, etc., to the treated surface
-Coats certain plastic surfaces noncovalently to create a reactive film
-Chemically adheres tissue sections to glass slides for immunohistochemistry


PROPERTIES of (3-Aminopropyl)triethoxysilane:

-Appearance: Colorless transparent liquid
-Color(Pt-Co): ≤25
-Molecular Weight: 221.4
-Specific Gravity (ρ20°C, g/cm3): 0.946
-Refractive Index (nD25)    1.420
-Boiling Point (°C): 217
-Flash Point (°C): 98
-Purity (%): ≥97.0


CHEMICAL PROPERTIES:

Colorless transparent liquid


SYNONYM:

(3-Aminopropyl)triethoxysilane
APTES
3-(TRIETHOXYSILYL)PROPYLAMINE
1-Propanamine, 3-(triethoxysilyl)-
3-(triethoxysilyl)propan-1-amine
gamma-(3-Aminopropyl)triethoxysilane
Silicone A-1100
Propylamine, 3-(triethoxysilyl)-
(3-Aminopropyl)triethoxysilane
3-Triethoxysilylpropylamine
Nuca 1100
Triethoxy(3-aminopropyl)silane
3-(Triethoxysilyl)-1-propanamine
Uc-A 1100

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