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CNSL-based Diols: Outstanding Hydrophobicity and Chemical Resistance in Polyurethane Adhesives

Published on 2015-06-02. Author : SpecialChem

Monmouth Junction, NJ -- Diols derived from Cashew Nutshell Liquid (CNSL) have unique characteristics compared to widely known polyester, polyether, and polybutadiene diols. Hydrophobicity is one key advantage provided by the long aliphatic side chain present in the CNSL backbone. This hydrophobicity reduces water absorption and contributes to greater hydrolytic stability in polyurethane systems. Different from other well-known renewable polyols obtained from soy and castor oil, CNSL-based diols have an aromatic structure along with an aliphatic chain that combined provide excellent chemical resistance in acid and alkaline solutions.

CNSL-based diols can be formulated into coatings, adhesives and sealants as a binder or as a building block for polyurethane pre-polymers. Their excellent compatibility with polybutadiene and polyether diols offers formulators greater latitude to make polyurethane systems curable by different mechanisms that are cost effective and deliver improved properties. The presentation that follows contains performance data of CNSL-based diols for polyurethane adhesives and sealants systems.

About Cardolite
Cardolite is one of the world's largest producers and developer of specialty chemical products originating from cashew nutshell liquid (CNSL). CNSL is a non-food chain, renewable chemical having a unique structure suitable for use as a building block of advanced materials. Cardolite epoxy products are the backbone of paint formulations that protect assets from the most demanding environments, and Cardolite friction products are used in brake pad formulations that help stop millions of vehicles every day. With a heavy emphasis on research and development, Cardolite continues to develop innovative materials that can improve today's products. Coupled with global support and manufacturing, Cardolite strives to provide the highest quality service to the most demanding customers worldwide.

Source: Cardolite
 


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