Carbonyl‑hydroxyl‑modified silicone oil: Effectively enhances polyurethane performance and drives material upgrades.

Polyurethane (PU) is a polymeric material whose main chain contains repeating urethane (-NHCOO-) structural units. Thanks to its unique soft–hard segment architecture, polyurethane exhibits excellent mechanical strength, wear resistance, oil resistance, solvent resistance, and chemical corrosion resistance; however, it suffers from limitations in heat resistance and water resistance, which to some extent constrain its broader application in high‑end sectors.

Carbon‑hydroxy silicone oil is an organosilicon compound in which carbon‑hydroxy groups (C–OH) are introduced into the main chain or side chains of a polysiloxane. It combines the heat resistance, weatherability, and low surface energy characteristic of silicone materials with the high reactivity of hydroxyl groups. This product can react with isocyanates to covalently link the polysiloxane via Si–C bonds into polymer systems, thereby effectively modifying polyurethane resins. This modification significantly enhances the material’s thermal stability, hydrolytic resistance, and stain resistance, while also improving its tactile feel and surface properties.

I. Main Methods for Modifying Polyurethane with Carbon-Hydroxyl Silicone Oil

The modification of polyurethane by carbon‑hydroxyl silicone oil is mainly categorized into two types: block copolymerization modification and graft copolymerization modification.

Block copolymer modification: By chemically bonding organosilicon groups to the polyurethane molecular chains, interphase compatibility is enhanced, resulting in more balanced and stable overall material performance.

Graft copolymerization modification: By grafting organosilicon side chains onto the polyurethane backbone, the issue of organosilicon migration is mitigated, and while preserving the original mechanical properties of polyurethane, the material’s surface characteristics are significantly enhanced.

II. Application Areas of Carbon-Hydroxyl Silicone Oil-Modified Polyurethane

Carbon‑hydroxyl silicone‑modified polyurethane exhibits outstanding performance and has been widely applied in numerous industries, including textiles and leather, coatings, adhesives, and elastomers.

Textile and Leather Industry: Enhances the softness and delicate hand feel of fabrics and leathers, improves water- and stain‑resistance, and boosts product durability and ease of cleaning.

Paint Industry: It improves the leveling of coatings, enhances their weatherability, chemical resistance, anti‑sticking properties, and stain resistance, and allows for flexible adjustment of coating gloss.

Adhesives field: Enhances the adhesive’s flexibility, elasticity, weather resistance, chemical resistance, and high-temperature performance.

Elastomer field: It enhances the elastomer’s elasticity, chemical resistance, oil resistance, and heat resistance, while allowing hardness and elastic modulus to be tailored as needed.

III. Cheerchem Advanced Material Cheersil 8300 Series Carbon-Hydroxy-Modified Silicone Oil

Cheerchem Advanced Material has launched the Cheersil 8300 series of carbon‑hydroxy‑modified silicone oils, offering a diverse product portfolio and consistently reliable quality, providing efficient, customized solutions for polyurethane modification.

IV. Regarding Cheerchem Advanced Material

Cheerchem Advanced Material is a high-tech enterprise specializing in the R&D, production, and sales of functional organosilicon materials, lithium‑battery electrolyte additives, and electrolytes. The company has four subsidiaries: Shandong Cheerchem Advanced Material Co., Ltd., Fuzhou Cheerchem New Energy Materials Co., Ltd., Suzhou Qizhu New Materials Co., Ltd., and Hangzhou Sulong Materials Technology Co., Ltd. Its functional organosilicon product line boasts an annual production capacity of nearly 30,000 tons, capable of meeting the diversified and large‑scale needs of a wide range of customers.

The company upholds the core values of “Integrity and Virtue, Dedication and Pragmatism, Excellence and Innovation,” and is committed to delivering high-end, premium, and innovative material products. By leveraging green technologies, we drive high-quality industrial development and continuously create value for our customers.