Hexadecyltrimethoxysilane

Product Overview

Hexadecyltrimethoxysilane is a premium long-chain alkyl silane coupling agent engineered for advanced industrial applications. As a key member of the organosilicon family, this compound features a sixteen-carbon alkyl chain attached to a reactive trimethoxysilyl group. This unique molecular structure provides exceptional hydrophobicity and compatibility with organic polymers, making it an indispensable additive for modifying surface properties in various manufacturing sectors.

Our manufacturing process ensures high chemical purity and consistent performance batch after batch. The product is supplied as a clear to straw-colored liquid, ready for immediate integration into formulation processes. It serves as a critical component for enhancing the performance of mineral fillers, polyolefins, and moisture-crosslinked systems.

Key Chemical Properties

The efficacy of Hexadecyltrimethoxysilane lies in its dual functionality. The methoxy groups undergo hydrolysis to form silanols, which can condense with hydroxyl groups on inorganic surfaces such as glass, minerals, or metals. Simultaneously, the long hexadecyl chain orientates outward, providing a robust water-repellent barrier. This mechanism significantly improves the dispersion of fillers within polymer matrices and reduces viscosity during processing.

• Superior water repellency and moisture resistance
• Enhanced compatibility with non-polar polymers
• Improved mechanical properties in filled compounds
• Thermal stability suitable for high-temperature processing

Industrial Applications

This silane is extensively used as a surface modifier for mineral fillers. When treated minerals are incorporated into polymers, the long-chain alkyl functionality results in unique functional filler properties, leading to better mechanical strength and reduced water absorption. In the wire and cable industry, it acts as an effective scorch retardant in moisture-crosslinked compounds. Typical additive loading levels range from 0.5 to 1.5 weight percent based on the overall compound, which improves processability and extends shelf life without compromising electrical properties.

Furthermore, it is utilized in polyolefin production to modify surface energy and improve release characteristics. Its versatility makes it a preferred choice for manufacturers seeking to upgrade product durability and environmental resistance.

Specifications and Quality

Packaging and Storage

To maintain optimal quality, Hexadecyltrimethoxysilane should be stored in a cool, ventilated place away from direct sunlight and moisture. Standard packaging includes 180 kg drums, though we offer flexible packaging solutions according to specific customer requirements. Each shipment is accompanied by a Certificate of Analysis (COA) to verify compliance with international quality standards. As a global manufacturer, we ensure reliable supply chains and competitive bulk pricing for long-term partnerships.