From demolding to lubrication: Long-chain alkyl silicone oils continuously expand their application scenarios across multiple industries


Driven by the dual forces of "green manufacturing" and "cost reduction and efficiency improvement", long-chain alkyl silicone oils are evolving from a single role of assisting in demolding to becoming functional key additives in various scenarios such as coating leveling, plastic modification, fiber finishing, and oil blending, demonstrating a broad application depth.


1. Die-casting and rubber: Dual-modification silicone oil helps reduce costs and improve quality
By modifying the silicone oil with both alkyl and phenyl groups, the heat resistance and compatibility can be improved simultaneously. The resulting alkanaphenyl silicone oil performs exceptionally well in the aluminum die-casting demolding industry. Compared to dimethyl silicone oil, it has no residue after demolding and does not affect secondary printing, helping downstream enterprises reduce grinding rework and improve surface quality, meeting the demands of cost reduction and efficiency improvement in high-end rubber and plastic processing.


2. Lubrication and defoaming: New solutions in oil products and industrial media
The increase in carbon chain length enables the alkyl silicone oil molecules to easily entangle into a thick lubricating film, providing outstanding lubrication effects for soft metals such as aluminum, zinc, and steel, as well as rubber and plastic bearings and gears. In the defoaming of coatings and inks, due to its good affinity for organic materials, it can avoid the problems of shrinkage and silicon spots that often occur with dimethyl silicone oil. The solid defoaming agent with hexadecyl silicone oil as the active component can significantly reduce the foaming of laundry detergent, presenting a broad market prospect.


3. Textile and personal care: Making fabric finishing and skin care experiences smoother
As a fabric finishing agent, long-chain alkyl can enhance waterproof properties while also providing lubrication and softness, enabling multi-functional finishing. In personal care, the alkyl silicone oil has good compatibility with high-carbon alcohols and liquid paraffin, is easier to emulsify, and maintains the safety and smooth texture of polydimethylsiloxane while improving skin affinity, resulting in better formulation spreadability.


4. Frequently Asked Questions by Customers
**Question: What is the impact of carbon chain length on performance? **
Answer: When the number of carbon atoms in the side chain is approximately between 10 and 16, the lubrication and friction-reducing performance significantly improves. Among them, the anti-friction and anti-wear effect after hexadecyl modification is particularly remarkable.


**Question: How about the lubrication effect on soft metals? **
Answer: It has a good lubricating effect on metals with poor lubricity such as aluminum, zinc, and copper, and is also suitable for lubricating materials like rubber and plastic.


**Question: What should be noted when storing and using it? **
Answer: It should be avoided from coming into contact with strong acids or strong bases; if stored for a long time, the viscosity may increase. It is recommended to store it in a sealed manner in a cool and dry place.