3-Aminopropyltriethoxysilane 919-30-2

3-Aminopropyltriethoxysilane (APTES) is a colorless, clear, odorless liquid with a molecular weight of 221.37 g/mol. It is a silane coupling agent that is used in a variety of applications, including:

  • Surface modification: APTES can be used to modify the surface of a variety of materials, such as glass, metal, and plastic. This can improve the wettability, adhesion, and durability of the surface.
  • Coatings: APTES is used in a variety of coatings, such as paints, varnishes, and adhesives. It can improve the water resistance, durability, and adhesion of the coating.
  • Cosmetics: APTES is used in a variety of cosmetics, such as hair care products, skin care products, and nail polish. It can improve the hold, shine, and durability of the product.
  • Biotechnology: APTES is used in a variety of biotechnology applications, such as DNA cloning and protein purification. It can improve the binding, separation, and detection of biomolecules.

Safety: APTES is a mild irritant to the skin and eyes. It is also flammable and can be harmful if inhaled. It is important to follow safety precautions when handling APTES, such as wearing gloves, goggles, and a respirator.

Product number PR-550
English name: 3-Aminopropyltriethoxysilane
Alias: 3-Aminopropylmethyldimethoxysilane;
Molecular Structure:
Molecular formula: C9H23NO3Si
Molecular weight: 221.37
CAS : 919-30-2
EINECS : 213-048-4
InChI: 1S/C9H23NO3Si/c1-4-11-14(12-5-2,13-6-3)9-7-8-10/h4-10H2,1-3H3
Physical and chemical properties
Melting point: -70ºC
Boiling point: 217ºC
Water Solubility: to react
Refractive index: 1.42-1.422
Flash point: 96ºC
Density: 0.942

Features and uses :

  1. Amino groups and ethoxy groups are used to couple organic polymers and inorganic fillers to enhance their cohesiveness and improve the mechanical, electrical, water resistance, and anti-aging properties of the product. PBT, polyamide, carbonate and other thermoplastics applied to mineral filling can greatly improve the physical and mechanical properties of reinforced plasticssuch as wet and dry flexural strength, compressive strength, shear strength and wet electrical properties, and improve the filler in Wettability and dispersibility in polymers.
  2. Excellent adhesion promoter, can be used in nitriles, adhesivesand sealing materials, improve the dispersion of pigments and improve the adhesion to glass, aluminum, iron metal, and also suitable for acrylic latex paint.
  3. In resin sand casting, it can enhance the adhesion of resin silica sand, improve the strength and moisture resistance of molding sand.
  4. In the production of glass fiber cotton and mineral wool, adding it to the phenolic binder can improve moisture resistance and increase compression resilience.
  5. Used in the synthesis of amino silicone oil and its emulsion
  6. In the manufacture of grinding wheels, it helps to improve the adhesion and water resistance of the phenolic resin adhesive of wear-resistant self-setting sand.

Packaging and storage :
1. Packed in plastic drum, net weight 25 kg or 200 kg per drum.
2. This product should be airtight and stored in a cool and ventilated place.