End-chain vinyl silicone oils (such as end-vinyl polydimethylsiloxane) have shown unique application advantages in many fields due to the high reactivity of vinyl at both ends of the molecular chain. Their application scenarios can be summarized as the following core directions：


1. Silicone rubber field: preparation of high elasticity and high strength materials
High temperature vulcanized silicone rubber (HTV)：
As a crosslinking agent, end-chain vinyl silicone oil reacts with hydrogen-containing silicone oil under the action of a platinum catalyst, which significantly improves the crosslinking density of silicone rubber.This structure enables silicone rubber to maintain elasticity and stability in high temperature, high pressure or harsh chemical environments. It is widely used in automotive seals (such as engine seals), electronic and electrical seals (such as sensor packages) and other scenarios to ensure long-term sealing performance.
Thickened liquid silicone rubber：
Its low viscosity characteristics (due to the active groups at both ends of the molecular chain) make it an ideal raw material for injection thermoforming silicone rubber.By adjusting the vinyl content, the hardness and elasticity of silicone rubber after vulcanization can be controlled. It is suitable for the manufacture of complex-shaped products such as mobile phone buttons and remote control buttons to achieve efficient and accurate automated production.
2. Coatings and modified materials: key additives for performance improvement
Coating industry：
End-chain vinyl silicone oil can improve the leveling of the coating and make the coating surface smoother and smoother; at the same time, it enhances weather resistance and chemical resistance, and extends the service life of the coating.In building exterior wall coatings, it can resist ultraviolet rays and acid rain erosion; in automotive coatings, it can improve the gloss and scratch resistance of the paint surface.
Silicone modified material：
By reacting with organic materials such as polyurethane and acrylic acid, end-chain vinyl silicone oil can prepare a new type of composite material that combines the advantages of silicone rubber and organic materials.For example, the material obtained by reacting with polyurethane has both elasticity and wear resistance, and is widely used in elastomers, sealing materials and other fields.
3. Medical field: Innovative application of biocompatible materials
Medical device seals：
Specially formulated end-chain vinyl silicone oil is used in the manufacture of seals for medical devices such as catheters and implants due to its good biocompatibility and chemical stability.Its non-toxic and non-irritating properties ensure human safety, while meeting the strict requirements of medical operations for material flexibility and sealing.
Medical silicone tube：
In the manufacture of medical silicone tubes such as infusion tubes and catheters, end-chain vinyl silicone oil can give the product excellent flexibility and chemical stability, ensuring that no degradation or release of harmful substances occurs during long-term use.
4. Electronics industry: High-performance sealing and potting solutions
Potting of electronic components：
End-chain vinyl silicone oil is used to prepare potted silicone rubber to provide moisture-proof, dust-proof, and corrosion-proof protection for electronic components such as chips, resistors, and capacitors, while improving the accuracy and stability of components.Its low viscosity characteristics ensure that the potting glue fully fills the gap between the components and forms a dense protective layer.
LED package：
In the packaging of LED lamps, the addition of molded silicone gel (with end-chain vinyl silicone oil as the main raw material) can effectively protect the LED chip and improve the luminous efficiency and service life because of its softness, low elasticity, and good light transmittance.
5. Textile printing and dyeing industry: optimizer for fabric performance
Fabric finishing agent：
End-chain vinyl silicone oil can make the fabric soft and smooth to the touch, while improving washability and wrinkle resistance.In the treatment of clothing fabrics, it can reduce static electricity generation and improve wearing comfort; in industrial fabrics, it can enhance its wear resistance and durability.
6. Cosmetics and personal care: high-quality ingredients for lubrication and penetration
Cosmetic raw materials：
Because of its excellent lubricity and permeability, end-chain vinyl silicone oil is widely used in the manufacture of soap, shampoo, moisturizer and other products.It can improve the texture of the product, make the skin feel silky and non-greasy, and enhance the penetration effect of the active ingredients.