A side chain type long chain modified silicone oil, a preparation method and application thereof, and an application method

By designing a side-chain type long-chain modified silicone oil to form a strong intermolecular interaction with the porous substrate surface, the problem of easy lubricant loss was solved, and the long-term stability and excellent anti-icing performance of the ultra-lubricating anti-icing surface were achieved.

CN122127602APending Publication Date: 2026-06-02SOUTHEAST UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHEAST UNIV
Filing Date
2026-03-17
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing fluid-filled smooth porous surfaces are prone to lubrication loss in harsh outdoor environments, leading to a rapid decline in anti-icing performance and making it difficult to meet long-term durability requirements.

Method used

By designing side-chain type long-chain modified silicone oil, the long-chain substituents form strong intermolecular interactions with the porous substrate surface, thus preparing a lubricating oil with super strong interfacial bonding force and constructing a durable and stable super-lubricating and anti-icing surface.

Benefits of technology

It achieves long-term stability of the lubricating layer, significantly delays freezing time, reduces ice adhesion, enables low-stress de-icing, reduces de-icing energy consumption, and improves lubricant retention rate.

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Abstract

This invention discloses a side-chain type long-chain modified silicone oil, its preparation method, and its application. This side-chain type long-chain modified silicone oil has a polysiloxane backbone, with multiple long-chain substituents -R linked to its side chains via silicon atoms. Its specific structure is shown below, where the long-chain substituents -R are straight-chain alkyl groups containing 8-16 carbon atoms, m is 10-20, and n is 50-76. Through precise design of the silicone oil's molecular structure, this invention enables its long-chain hydrocarbon side chains to generate a strong intermolecular "interlocking anchoring" effect with the porous substrate surface modified with long-chain alkylsilanes. This fundamentally solves the problem of easy lubrication layer loss when applied to smooth porous surfaces after fluid injection. Aluminum-based anti-icing surfaces prepared using this lubricant exhibit extremely low ice adhesion strength (<20 kPa), ultra-long freezing delay time, and excellent lubrication durability, making it particularly suitable for long-term passive anti-icing of outdoor equipment such as power transmission lines.
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