Description

N,N''-(Methylphenylene)Bis[N'-[3-(Triethoxysilyl)Propyl]Urea] is a high-performance organosilane coupling agent with a unique bis-urea structure. This compound is engineered to provide superior adhesion promotion and compatibility between organic polymers and inorganic substrates. It is essential for formulators and manufacturers seeking to enhance the mechanical properties, durability, and performance of composite materials. Key industries that rely on this advanced additive include advanced composites, specialty adhesives, and high-performance coatings.

Application

• Adhesion Promoter for Composites: Enhances the bond between glass, metal, or mineral fillers and polymer matrices such as epoxies, polyurethanes, and phenolics, improving mechanical strength and moisture resistance.
• Surface Modification Agent: Used to functionalize silica, glass fibers, and other inorganic surfaces to improve compatibility and dispersion in organic systems.
• Crosslinking Agent/Additive for Sealants and Adhesives: Imparts improved thermal stability, chemical resistance, and cohesive strength to high-performance formulations.
• Primer and Coating Component: Serves as a key ingredient in primers and specialty coatings to promote adhesion to difficult substrates like metals and treated plastics.
• Reinforcement in Rubber Compounds: Used in tire and technical rubber goods to improve filler-rubber interaction, reducing hysteresis and enhancing wear resistance.
• Fiber Sizing for Reinforced Plastics: Applied as a sizing or finish on glass or carbon fibers to optimize the interface in fiber-reinforced polymer (FRP) composites.

Basic Information

Product Name	N,N''-(Methylphenylene)Bis[N'-[3-(Triethoxysilyl)Propyl]Urea]
CAS No.	68845-12-5
Molecular Formula	C27H52N4O8Si2
Molecular Weight	617.0 g/mol
Synonyms	Bis(3-triethoxysilylpropyl)-m-phenylenediurea; 1,3-Bis[[3-(triethoxysilyl)propyl]ureido]benzene; m-Phenylene bis(propyltriethoxysilylurea); Silane coupling agent bis-urea; Ureido silane; N,N'-(1,3-Phenylene)bis[N''-[3-(triethoxysilyl)propyl]urea]; Organosilane bis-urea; Adhesion promoter 68845-12-5
EINECS	Contact for details

Quality Control

Our production of N,N''-(Methylphenylene)Bis[N'-[3-(Triethoxysilyl)Propyl]Urea] adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistency, purity, and performance. Certificates of Analysis (COA) detailing key parameters such as assay, silane content, and moisture levels are provided to guarantee the material meets your specific application requirements and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C / 59-77°F). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation from atmospheric moisture. Keep away from strong acids and bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Silane Content	Contact for details
Moisture (KF)	≤ 0.5%
Refractive Index (n20D)	1.440 - 1.450
Density (g/mL, 20°C)	1.05 - 1.10

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.