Hydroxyl Terminated Polyfluorosiloxane

Hydroxyl terminated polyfluorosiloxane is a low molecular weight polymer characterized by its terminal hydroxyl groups. The introduction of trifluoropropyl groups at the silicon atoms endows this compound with exceptional properties, including outstanding oil, solvent, and chemical resistance. Additionally, it exhibits remarkable antioxidative stability, low surface tension, and low refractive index, making it particularly valuable in a variety of industrial applications. The hydroxyl groups also allow for further chemical modification, enhancing the versatility of this compound in various formulations. Hydroxyl terminated polyfluorosiloxane is especially effective as a structural control agent in the processing of fluorosilicone rubber. It can passivate the hydroxyl groups on the surface of silica and plays a crucial role in preventing the structuring of the rubber matrix.

Technical Index

Product Name	Hydroxyl Terminated Polyfluorosiloxane
Composition	Low molecular weight polymer of hyroxyl terminated polyfluorosiloxane
CAS	68607-77-2
Catalog	OFC00102-1	OFC00102-2
Appearance	Colorless or light yellow transparent liquid	Colorless or light yellow transparent liquid
Viscosity at 25°C	80-200 mPa·s	1000-100000 mPa·s
pH	7.0-9.0	6.0-7.5
Flashing Point	≥240°C	≥240°C
Density at 25°C	1.25±0.03 g/cm3	1.15±0.03 g/cm3
Volatility (200°C/4hr)	<5%	<5%
Refractive Index	1.390±0.01	1.396±0.01

Features

• Exceptional Resistance to Oils, Solvents, and Chemicals: Hydroxyl terminated polyfluorosiloxane showcases outstanding resistance to a wide range of oils, solvents, and chemicals. This durability makes it an ideal choice for applications in harsh environments where exposure to aggressive substances is common.
• Superior Antioxidant Properties: This material exhibits remarkable antioxidant characteristics, effectively preventing degradation when exposed to oxidative conditions. Its ability to maintain stability and performance under oxidative stress enhances its longevity and reliability in various applications.
• Low Surface Tension and Refractive Index: Hydroxyl-terminated polyfluorosiloxane possesses a low surface tension and a low refractive index, which contribute to its unique performance. These properties facilitate superior wetting and spreading on surfaces, as well as transparent coatings, making it suitable for a wide range of industrial applications.