The material selection platform
Polymer Additives
by SpecialChem
Cette page a bien été ajoutée à vos favoris

Niax™ Silicone L-5440

Niax™ silicone L-5440/SR-321 by Momentive is a non-hydrolyzable silicone surfactant which may be an excellent candidate for use in difficult-to stabilize rigid foam formulations, such as those having very low reactivities. In these types of formulations, Niax silicone L-5440/SR-321 helps effectively maintain the compatibility of the foaming ingredients before the onset of the reaction. This results in increased fluorocarbon efficiency, i.e., density reduction, and the formation of fine, uniform, closed cells, i.e., lower k-factors. In addition, Niax silicone L-5440/SR-321 may be an effective stabilizer for rigid foam formulations incorporating reduced levels of auxiliary blowing agent, for example, high-water/reduced-CFC systems. The foams contained a narrow distribution of small, fine, closed cells that contribute to excellent k-factor performance. Niax™ silicone L-5440/SR-321 by Momentive may also be suitable for HCFC-141b systems with excellent dimensional stability and compressive strength. Can be used with excellent results in such formulations as refrigeration, pour-in-place, boardstock or froth. It can be used in other formulations where polyol-soluble product is desired and should be evaluated in any formulation where standard surfactants are inadequate.
Product Type
Other Additives for Liquid Systems > Wetting Agents
Physical Form
Help us improve the Universal Selector

You can’t find what you are looking for? Please report missing products / suppliers, point out errors, or simply tell us how we could make the Universal Selector better.

Access Reliable
Product Information

Database of 48764 Polymer Additives,
reviewed and updated daily

Improve your Product
Selection Experience

Open your choices, compare products,
ask for samples, contact suppliers

Keep-up with latest
Technical Solutions

Be inspired and never miss again crucial
innovations with our weekly email updates

Back to Top