3-UREIDOPROPYLTRIETHOXYSILANE Chemical Properties

Boiling point:

68°C [760mmHg] (initial, methanol)

Density 

0.91 g/mL at 25 °C

refractive index 

n20/D 1.39

Flash point:

58 °F

EPA Substance Registry System

Urea, (3-silylpropyl)-, Si-(ethoxy and methoxy) derivs. (116912-64-2)

Safety Information

Hazard Codes 

F,T

Risk Statements 

11

Safety Statements 

16-23-45

RIDADR 

UN 1866 3/PG 2

MSDS

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3-UREIDOPROPYLTRIETHOXYSILANE Usage And Synthesis

Introduction

3-Ureidopropyltriethoxysilane is a bifunctional organosilane having a reactive organic ureido group and a hydrolyzable inorganic triethoxysilyl group. The dual nature of its reactivity allows 3-Ureidopropyltriethoxysilane to bind chemically to both inorganic materials (e.g. glass, metals, fillers) and organic polymers (e.g. thermosets, thermoplastics, elastomers), functioning as an adhesion promoter and as a surface modifier. 3-Ureidopropyltriethoxysilane is a 50% solution of silane in methanol; it is a colorless liquid with an alcohol-like odor and is soluble in alcohols, ketones, esters or aromatic hydrocarbons.

Applications:

• 3-Ureidopropyltriethoxysilane can be used with such polymers as epoxy, phenolic, furan and melamine resins, polyurethanes, PA, PBT, PE, EVA, PP, PVB, PVAC, acrylics and silicones.
• Used as a size constituent of finish for glass fiber/glass fabric composites.
• Used as an additive to phenolic, furan and melamine resins for foundry resins and abrasives.
• Used as an additive for sealants and adhesives.
• 3-Ureidopropyltriethoxysilane can be used as an additive and/or primer for paints and varnishes to improve adhesion to the substrate.

The most important effects which can be achieved using 3-Ureidopropyltriethoxysilane are improvements in product properties, such as:

• Improved mechanical properties: e.g. flexural strength, tensile strength, impact strength, modulus of elasticity.
• Improved resistance to moisture and corrosion.
• Higher temperature of deflection under load.

Chemical Properties

Colorless clear liquid with alcohol-like odor

3-UREIDOPROPYLTRIETHOXYSILANE(116912-64-2)Related Product Information

• Tetraethyl orthosilicate
• Triethylsilane
• Triethoxypropylsilane
• N-(Triethoxysilylpropyl)urea
• N,N-DIOCTYL-N'-TRIETHOXYSILYLPROPYLUREA
• N-3-(TRIETHOXYSILYLPROPYL)-N-3-(TRIMETHOXYSILYL-PROPYL)UREA
• Bis([3-triethoxysilyl)propyl]urea
• (S)-N-1-PHENYLETHYL-N'-TRIETHOXYSILYLPROPYLUREA
• N-OCTADECYL-N'-[3-(TRIETHOXYSILYL)PROPYL]UREA
• 3-UREIDOPROPYLTRIETHOXYSILANE