Description

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

Application

• Adhesion Promoter for Composites: Enhances the interfacial bond between glass, mineral, or metal fillers and polymer resins like epoxy, polyurethane, and nylon, significantly improving mechanical strength.
• Surface Modification Agent: Used to functionalize silica, glass fibers, and other inorganic surfaces to improve their dispersion and compatibility in organic systems.
• Crosslinking Agent for Polymers: Acts as a coupling and crosslinking component in silicone-modified polymers and hybrid organic-inorganic materials.
• Primer for Coatings and Adhesives: Applied as a primer layer on metals, glass, or plastics to dramatically improve the adhesion and longevity of subsequent coatings or adhesive bonds.
• Rubber Reinforcement: Used in tire and technical rubber goods to strengthen the bond between silica filler and the rubber matrix, reducing rolling resistance and improving wear.
• Fiber Sizing: A critical component in sizing formulations for glass and carbon fibers used in reinforced plastics, protecting fibers and ensuring optimal resin wetting.

Basic Information

Product Name	N,N''-(Methylenedi-p-Phenylene)Bis[N'-[3-(Triethoxysilyl)Propyl]Urea]
CAS No.	85586-48-7
Molecular Formula	C31H52N4O8Si2
Molecular Weight	664.93 g/mol
Synonyms	Bis(3-triethoxysilylpropyl)urea bridged with methylenediphenylene; Ureido silane coupling agent; N,N'-[Methylenebis(1,4-phenylene)]bis[N-(3-(triethoxysilyl)propyl)urea]; MDI-based bis-ureido silane; Ureidosilane; 1,1'-[Methylenebis(4,1-phenylene)]bis[3-(3-(triethoxysilyl)propyl)urea]; Silane coupling agent 85586-48-7
EINECS	Contact for details

Quality Control

Our production of N,N''-(Methylenedi-p-Phenylene)Bis[N'-[3-(Triethoxysilyl)Propyl]Urea] adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot undergoes comprehensive analytical testing, including assay by titration or HPLC, identity confirmation via FT-IR and NMR, and control of key impurities. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and regulatory compliance needs.

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). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent hydrolysis and degradation upon contact with atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Refractive Index (n20D)	1.460 - 1.480
Density (g/mL, 20°C)	1.05 - 1.15
Moisture (KF)	≤ 0.5%

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