In the process of continuously upgrading polyurethane elastomers, high-performance coatings, and silicone-modified materials towards functionalization, functional intermediates with both reactive properties and the excellent characteristics of silicone are becoming the key elements for achieving breakthroughs in material performance. Our company's product, 2030 Bisendylpropyl Silicone Oil, as a reactive bisendylpropyl silicone, demonstrates significant industrial application value in the fields of synthesizing silicone-polyurethane/polyester block polymers, solvent-based anti-graffiti coatings, and release and demolding agents, providing precise modification solutions for the development of high-performance polymer materials.


I. Product Series Specifications and Core Physical Properties


Product 2030 Bisendylpropyl Silicone Oil is a linear organic functional poly siloxane, appearing as colorless or yellow transparent liquid with an active component of no less than 90%. This product offers multiple specifications to meet different application needs: IOTA2030-5 has a viscosity of 21 centipoise, a hydroxyl content of 4.5%, and a molecular weight of 500; IOTA2030-10 has a viscosity of 27 centipoise, a hydroxyl content of 2.5%, and a molecular weight of 1000; IOTA2030-20 has a viscosity of 39 centipoise, a hydroxyl content of 1.7%, and a molecular weight of 2000; IOTA2030-30 has a viscosity of 60 centipoise, a hydroxyl content of 1.1%, and a molecular weight of 3000; IOTA2030-40 has a viscosity of 80 centipoise, a hydroxyl content of 0.8%, and a molecular weight of 4300. The refractive index is between 1.4082 and 1.4192. The product's molecular chains have one end-prop hydroxyl active group at each end, which can participate in polymerization reactions as an active component in suitable polymers. Through gradient design of molecular weight and hydroxyl content, different specifications have different focuses in modification effects: the lower molecular weight and higher hydroxyl content specifications have higher cross-linking reaction activity and are suitable for systems requiring efficient chemical bonding; the higher molecular weight and lower hydroxyl content specifications are more focused on the flexibility and low surface energy characteristics of the silicone chain segments.


II. Core Reactivity Characteristics and Performance Advantages


The application value of product 2030 Bisendylpropyl Silicone Oil is rooted in its end-prop hydroxyl reactive groups. In polyurethane synthesis, these hydroxyl groups can undergo copolymerization reactions with isocyanate groups, introducing silicone chain segments chemically into the polyurethane main chain, generating silicone-polyurethane block copolymers. Compared to physical blending, the chemical bonding method fundamentally avoids the problem of modification agent migration and precipitation, giving the material a persistent and stable performance improvement. Academic research shows that when hydrocarbon-based polysiloxanes are introduced into the polyurethane main chain, the material's tensile elongation rate significantly increases, and its heat resistance and low-temperature resistance are significantly improved. After storage at minus eighteen degrees Celsius for seventy-two hours, the mechanical performance retention rate can reach 77% to 95%.


In terms of performance, this product can significantly enhance the performance of polymers in multiple dimensions. Firstly, it improves the low-temperature flexibility and toughness of the polymer, broadening the material's operating temperature range; secondly, it gives the polymer good processing fluidity, optimizing the molding process; thirdly, it utilizes the automatic surface attraction effect of silicone to produce good isolation and anti-sticking properties in polymers; fourthly, it improves the heat resistance and wear resistance, extending the product's service life. In anti-graffiti coatings, this product provides a coating with a scratch-resistant effect and a peelable property, and has good compatibility with ester, ketone, and alcohol types.


III. Wide Application Areas and Usage Methods


Product 2030 Bisendylpropyl Silicone Oil, with its precise reactivity and multiple specification options, can play an important role in the following key application areas, including:


I. Synthesizing silicone-polyurethane/polyester block polymers. This product is a key active intermediate for preparing high-performance block copolymers. Through the reaction of hydroxyl groups with isocyanate groups or carboxyl groups, the organic silicon segments are embedded in the polymer main chain.


II. Solvent-based graffiti-resistant coatings. The modified polydimethylsiloxane used for preparing solvent-based graffiti-resistant coatings has excellent performance in resisting marker pens and has a peelable effect.


III. Release agents and demolding agents. It can be used as release agents and demolding agents. The recommended addition amount is usually 3% to 20%, mainly applied in organic silicone rubber, polyurethane, and coating fields.


IV. Dosage suggestions and selection reference


According to specific performance requirements, the recommended addition amount is 3% to 30% of the amount of the polyol in the original formula. For different specifications, the suggestions are: IOTA2030-5 and IOTA2030-10 have higher hydroxyl content, suitable for polyurethane synthesis and crosslinking systems requiring efficient chemical bonding; IOTA2030-20 and IOTA2030-30 are suitable for graffiti-resistant coatings and release agent systems with high requirements for hand feel, softness, and low surface energy.


V. Packaging, storage, and safety information


The product is available in various packaging specifications such as 1 kilogram, 5 kilograms, 25 kilograms, and 200 kilograms per barrel. It should be stored in a sealed manner in a normal temperature environment. The storage period is 12 months. Contact with tin (such as metal containers) will shorten the stability of storage. This product is non-hazardous and the storage and transportation should follow the general chemical procedures.


VI. Quality assurance and industrial chain value


The product, 2-end hydroxypropyl silicone oil 2030, has established a strict quality control system during the production process. Key indicators such as product appearance, viscosity, hydroxyl content, molecular weight, and refractive index are tested throughout the process to ensure consistency and reliability between batches. As the polyurethane, coating, and organic silicone modified materials industry continues to develop towards high-performance and functionalization, this product, with its high reactivity imparted by the 2-end hydroxypropyl group, series design of multiple viscosity specifications, and wide adaptability to various systems, is becoming an important raw material option for block polymer synthesis, graffiti-resistant coatings, and release and demolding systems, providing strong raw material support for promoting product innovation and technological upgrading in related industries.