In the industrial fields such as silicone rubber processing and pressure-sensitive adhesive isolation layer preparation, functional intermediates with specific reactive properties and low viscosity characteristics are becoming key elements for enhancing product quality and processing efficiency. The product we have launched, low-viscosity ethoxy silicone oil 216, as a small molecule linear polydimethylsiloxane with an ethoxy end group, demonstrates significant industrial application value in applications such as silicone rubber structure control, pressure-sensitive adhesive isolation, and paper anti-adhesion treatment, providing efficient and flexible functional intermediates for customers in various industries.


I. Core Physical and Chemical Properties and Structural Characteristics


Product low-viscosity ethoxy silicone oil 216 is a colorless transparent liquid with a viscosity of two to five millipascal-seconds at 20 degrees Celsius and a flash point of no less than 61 degrees Celsius, providing basic safety guarantees for storage and use. This product is a small molecule linear polydimethylsiloxane with an ethoxy end group, belonging to low-molecular-weight siloxanes, with low molecular weight and low viscosity, and having good fluidity and wettability. Its molecular chain ends contain reactive ethoxy groups, which can undergo hydrolysis cross-linking and produce ethanol, enabling its use as an in-situ cross-linking agent and surface treatment agent in specific application scenarios. Its extremely high purity grade and stable physical indicators provide reliable quality assurance for downstream applications, while its low viscosity characteristic gives it excellent penetration and dispersion capabilities.


II. Core Reaction Characteristics and Application Value


The application value of product low-viscosity ethoxy silicone oil 216 stems from the water-soluble condensation reaction ability of the ethoxy groups at both ends of the molecular chain. When exposed to water or moisture, the ethoxy groups can hydrolyze to generate silanol groups, which then react with the active groups on the substrate surface or cross-link to form a polymer network structure.


In the field of silicone rubber processing, this product can be used as a structure control agent. During the mixing process of silicone rubber, the active silanol groups on the surface of silica fume fillers cause the rubber to gradually harden during storage, a phenomenon known as "structure formation". The ethoxy groups of this product can react with the hydroxyl groups on the filler surface, effectively preventing the structure formation process and improving the processing fluidity of the rubber.


In the fields of pressure-sensitive adhesives and paper anti-adhesion treatment, this product can form a uniform isolation layer on the substrate surface, effectively preventing the adhesion of adhesive or ink to the substrate. Its low viscosity characteristic makes it easy to apply and penetrate, and the reaction by-products are ethanol, which is environmentally friendly and does not require complex post-treatment.


III. Main Application Areas


Product low-viscosity ethoxy silicone oil 216, with its unique reactive properties and low viscosity characteristics, can play an important role in the following key application areas:


1. Structure control agent in silicone rubber processing. This product can effectively inhibit the structure formation phenomenon caused by reinforcing fillers such as silica fume, significantly reducing the Melt Flow Index (MFI) of the mixed rubber, extending the safe storage time of the rubber, and improving the processing fluidity. Compared to traditional hydroxyl silicone oil, the water-soluble reaction of ethoxy silicone oil is more controllable and less sensitive to humidity in the processing environment, suitable for various silicone rubber processing techniques.


2. Isolation agent for pressure-sensitive adhesives. In the production of pressure-sensitive adhesive tapes and labels, this product can be used as an isolation agent, applied to the surface of release paper or release film, forming a stable anti-adhesion coating, ensuring that the pressure-sensitive adhesive can be easily peeled without adhesion or transfer problems, while not affecting the initial adhesion and holding power of the adhesive layer.


3. Anti-adhesion treatment of paper and other materials. This product is suitable for anti-adhesion treatment of various release papers such as label base paper, asphalt packaging paper, box sealing paper base paper, and decoration paper base paper. After treatment, it gives the paper good anti-adhesion performance and also has certain waterproof and moisture-proof effects.


IV. Packaging Specifications and Storage Conditions


Product low-viscosity ethoxy siloxane oil 216 offers various packaging specifications such as IBC drums, 200-liter iron drums/plastic drums, and 25-liter plastic drums. Custom packaging can also be provided. This product is stored and transported as non-hazardous chemicals and is stable at room temperature. During storage, it must not come into contact with open flames or water. It should be kept in a ventilated and dry environment, protected from sunlight and rain. The original packaging should not be opened without opening the seal under the specified temperature. The storage period is one year from the date of production. After the expiration date, the product must be re-inspected to ensure all indicators are qualified before use.


V. Quality Assurance and Industrial Chain Value


During the production process of product low-viscosity ethoxy siloxane oil 216, a strict quality control system has been established. Key indicators such as product appearance, viscosity, and flash point are tested throughout the process to ensure consistency and reliability between batches. As the demand for functional active intermediates in downstream industries such as silicone rubber processing, pressure-sensitive adhesives, and special paper products continues to grow, this product, with its excellent flowability and permeability due to low viscosity, controllable reaction activity imparted by ethoxy groups, and stable quality performance, is becoming an important raw material option in the field of silicone rubber structure control and anti-adhesion treatment. It provides strong raw material support for promoting the product quality improvement and process optimization in related industries.