Typical Technical Data

The below values are not intended for use in preparing specifications. Please confirm with us prior to writing specifications on this product.

CAS NO.:  1067-53-4

EINECS NO.:  213-934-0

Appearance:  Colorless transparent liquid

Colour (Pt-Co):  25 max

Specific Gravity (ρ20°C,g/cm^{3):  1.033~1.035}

Refractive Index ( ):  1.4275~1.4295

Purity (by GC, %):  98.0 min

Properties

Silane AC-521 acts as an adhesion promoter for various mineral-filled polymers improving their mechanical and electrical properties, especially after exposure to moisture. once bonded to an inorganic filler.

Silane AC-521 hydrophobises the filler surface. This effect improves the compatibility of fillers with the polymer matrix, leading to a better dispersibility, reduced melt viscosity and easier processing of filled plastics.

Polymer dispersion, modified with silane AC-521 show improved adhesion strength in wet conditions and wet scrub resistance.

Applications

Silane AC-521 is an vital additive  in many industries such as:

Enhances electric property and mechanical strength:  As the surface treating agent for the pottery clay and siliceous inorganic filler

Enhances mechanical strength of composite materials: It can reduce the water absorbability, electric property and mechanical strength of the cross-linked polyester mould pressing materials.

In the glass fiber application:  It enhances the binding power of resins

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