In the process of continuous upgrading of UV-curable coatings, inks, and high-performance resins towards higher performance and functionality, functional additives with both reactive properties and excellent silicone characteristics are becoming key elements for achieving breakthroughs in coating performance. Our company's product, acrylic silicone oil 2240, as a compound of polydimethylsiloxane with acrylate groups as the terminal functional groups, demonstrates significant industrial application value in UV-curable coatings, inks, and the modification of high-performance resins due to its unique dual-terminal functional structure, high-purity quality, and cross-linking reaction characteristics in the UV curing system. It provides an efficient organic silicone modification solution for the development of UV-curable materials.


I. Core Structural Characteristics and Physical Properties of the Product


Product acrylic silicone oil 2240 is a colorless viscous liquid with an active ingredient content of up to 99.9% and a molecular weight of approximately 4000. This product has acrylate groups as the terminal functional groups, with both ends of the molecular chain containing acrylate reactive groups, belonging to a typical dual-terminal (dual-functional) reactive silicone material. The dual-terminal structure means that it can simultaneously participate in cross-linking reactions in two directions under UV light initiation, making the silicone-oxygen chain segments truly become part of the resin network rather than merely being grafted on the outside of the network. Its main chain is a flexible polydimethylsiloxane structure, with low surface energy, weather resistance, and flexibility. The nearly 100% active ingredient content ensures efficient utilization in the formulation and avoids interference from solvents or diluents during the reaction process.


II. Core Reaction Characteristics and Performance Advantages


The application value of product acrylic silicone oil 2240 is rooted in its cross-linking reaction mechanism in the UV-curable system. The acrylate groups it carries can undergo free radical cross-linking reactions with the unsaturated double bonds in the UV resin system, introducing organic silicone components in the resin system, especially on the surface. The essential difference brought by the dual-terminal structure mainly lies in stronger network stability, lower migration risk, and more significant durability improvement. Unlike single-terminal or side-chain type reactive silicone oils, the dual-terminal structure permanently fixes the silicone-oxygen chain segments in the cross-linked network rather than merely as side chains, thus avoiding surface performance degradation due to chain segment migration over time.


In terms of performance improvement, this product can demonstrate outstanding performance in multiple dimensions: Firstly, significantly improve the weather resistance of the paint film, as the organic silicone-oxygen bonds themselves have excellent UV and oxidation resistance, significantly extending the service life of the coating in outdoor environments and effectively avoiding problems such as loss of gloss, flaking, and cracking; Secondly, optimize the resistance to dirt, as the silicone-oxygen chain segments can significantly reduce the surface tension of the coating, increase the contact angle with water, and make dust, fingerprints, and oil stains less likely to adhere, achieving outstanding self-cleaning effects; Thirdly, significantly enhance the resistance to low temperatures, as the flexible structure of the polydimethylsiloxane main chain enables the coating to maintain good extensibility and crack resistance in low-temperature environments, preventing brittle cracking and detachment under low-temperature conditions.


III. Main Application Areas and Dosage References


Product acrylic silicone oil 2240, with its precise cross-linking modification ability, can play an important role in the following key application areas:


1. UV-curable coating systems. In UV plastic paints, UV wood coatings, UV metal coatings, and architectural coatings, this product can be used as a reactive organic silicone cross-linking modifier. It participates in polymerization under UV light initiation and accumulates in the surface layer after curing, forming a structurally stable and durable silicone-modified coating. The recommended dosage is 2% to 6% for anti-staining and 1% to 6% for resin modification.


2. UV-curable inks and pressure-sensitive adhesives. In UV printing inks and screen printing inks, this product can enhance the smoothness, scratch resistance and stain resistance of the ink film, and improve the surface quality of printed products.


III. High-performance UV resin modification. This product can be used for the modification of UV resin systems such as polyester acrylate, polyurethane acrylate and epoxy acrylate. Through copolymerization, organic silicon segments are introduced into the resin network to improve the weather resistance, stain resistance and low-temperature resistance of the resin.


IV. Protection coatings for electronic and optical components. This product can be used as a protection coating for electronic components, providing waterproof, oxidation-proof and high-temperature protection, and extending the service life of electronic products.


IV. Packaging specifications and storage conditions


Product acrylic silicone oil 2240 is packaged in 25-kilogram plastic drums or 200-kilogram iron drums, and is placed in clean and dry containers. It is stored in a ventilated and dry warehouse. This product is transported as a non-hazardous item and has a shelf life of one year under the conditions of compliance with storage requirements and unopened.


V. Quality Assurance and Application Value


Product acrylic silicone oil 2240 has established a strict quality control system during production. Key indicators such as product appearance, active ingredients and molecular weight are tested throughout the process to ensure consistency and reliability between batches. As UV light curing technology continues to develop towards high-performance and functionalization, the demand for dual-terminal acrylate functional additives with both reactive activity and excellent organic silicon properties is steadily increasing. This product, with its network construction ability provided by the dual functional groups, precise molecular weight specification design and wide adaptability to UV systems, is becoming an important raw material option in UV curing coatings, inks and high-performance resin modification fields, providing strong raw material support for promoting product innovation and technological upgrading of UV curing materials.