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HD-70 Silane

Model No.︰KH-570、A-174
Brand Name︰HAIDA
Country of Origin︰China
Unit Price︰-
Minimum Order︰10 pc
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Product Description

 

HD-70 Silane

H2C=C(CH3)CO2(CH2)3Si(OCH3)3

Introduction

 

HD-70 is a methacry1-functional silane, it is a clear, light and heat sensitive liquid with a faintly sweet odour.

 

HD-70 is used as adhesion promoter at organic interfaces, as surface modifier (e.g. imparting water repellency, organophilic surface adjustment or as crosslinking of polymers). It is used as a coupling agent to improve the physical and electrical properties of glass-reinforced and mineral-filled thermosetting resins under exposure to heat and/or moisture. It is typically employed as a blend additive in resin systems that cure via a free radical mechanism (e.g. polyester, acrylic) and in filled or reinforced thermoplastic polymers, including polyolefins and polyurethanes. It is also used to functionalize resins via radical initiated processes – copolymerization or grafting – and to modify surfaces.

 

Typical Physical Properties

         _____________________________________________________________

          Chemical Name           gamma-Methacryloxypropyltrimethoxysila

          Empirical Formula         C10H20O5Si

          Molecular Weight          248.4

          Color and Appearance      Colorless transparent liquid

          Density 25/25             1.045

          Boiling Point             255 760mmHg

          Refractive Index           1.4202+/-0.0005 25

          Viscosity 25              2 cSt

          Flash Point               108

          CAS No.                 2530-85-0

          EINECS No.              219-785-8

          Min. Purity               96.0%

         _____________________________________________________________

 

 

 

          Solubility

        HD-70 is soluble in methanol, ethanol, isopropano1, acetone, benzene,

          toluene, and xylene. After hydrolysis, it is soluble in water with adequate

          stirring if the pH is adjusted to 4.0. Hydrolysis releases methanol.

         

          HD-70 shows copolymerization or grafting reactions when catalyzed by

          (organic) initiator systems, e.g. peroxides or by radiation (e.g. UV).

 

Applications

 

    Improves strength as glass fiber size composite in reinforced polyester composites.

 

    Enhances initial and wet strength of reinforced polyester resin composites.

 

    Enhances the wet electrical properties of many mineral filled and reinforced composites.

 

    Crosslinks acrylic type resins improving adhesion and durability of adhesives and coatings.  

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