Anticorrosive Agent Adhesion at High Temperatures
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Solution Overview
Problem
Existing anticorrosive agents for metal surfaces, such as those used in grease and surface treatment agents, exhibit poor adhesion at high temperatures, leading to leakage and instability, which compromises their protective properties, especially in heating-cooling environments.
Innovation Solution
An anticorrosive agent comprising a high-consistency material with a lubricant base oil and an amide compound, a phosphorus compound with specific structures, and a tackifier, formulated to maintain adhesion and protection at high temperatures, with a mass ratio of 50:50 to 98:2 and tackifier content of 2-20 parts by mass, ensuring stable metal surface protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If grease is used for corrosion resistance on metal surfaces, then lubrication and corrosion protection are provided, but adhesion to metal is poor and leakage occurs under high temperature conditions
Solution Approach 1:
The invention uses a composite material system consisting of grease, phosphorus compound, and metal powder. The phosphorus compound forms a chemical bond with the metal surface, while the grease provides lubrication and corrosion protection. This composite structure combines the advantages of both materials to achieve strong adhesion and effective corrosion protection at high temperatures.
Solution Approach 2:
The invention changes the chemical composition parameters by introducing phosphorus compounds with specific molecular structures (containing P=O, P-O-C, or P-S bonds) and metal powders. These compositional changes enable chemical bonding with the metal surface, fundamentally improving adhesion strength and preventing leakage under high temperature conditions.
2Reliability
If surface treatment agent is applied to metal, then corrosion resistance is provided, but adhesion is poor and peeling occurs in heating-cooling environments
Solution Approach 1:
The invention creates a composite protective layer combining phosphorus compound and metal powder that chemically bonds to the metal substrate. This composite structure maintains structural integrity during temperature cycling, preventing peeling while sustaining corrosion protection in heating-cooling environments.
Solution Approach 2:
The phosphorus compound and metal powder create a localized chemical bond at the metal surface interface, providing strong anchoring in critical areas. This localized chemical bonding ensures stable adhesion during temperature cycles while the grease phase provides continuous corrosion protection.
3Ease of operation
If material with poor adhesion is used, then application simplicity is maintained, but material peels from metal surface in heating-cooling environments
Solution Approach 1:
The composite formulation of grease, phosphorus compound, and metal powder provides simple application through conventional coating methods while the phosphorus-metal chemical bonding ensures long-term stability during temperature cycling. The simple three-component system is easy to manufacture and apply.
Solution Approach 2:
By changing the chemical composition to include phosphorus compounds and metal powders, the invention achieves both ease of application (through conventional grease application methods) and superior protective film stability (through chemical bonding). The compositional parameters are optimized to balance applicability and performance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The agent effectively maintains adhesion and anticorrosion properties even at high temperatures and in heating-cooling environments, preventing leakage and ensuring the stability of the protective film on metal surfaces.
Implementation Method 1
the grease of Patent Literature 1 does not chemically bond with the metal surface, but it merely adheres to the metal surface through the Van der Waals force
Implementation Method 2
a high-consistency material (A) containing a lubricant base oil and an amide compound
Implementation Method 3
a tackifier (C), wherein a mass ratio (A):(B) of the high-consistency material (A) and the composition (B) is within a range of 50:50 to 98:2, and a content of the tackifier (C) is 2 to 20 parts by mass
Implementation Method 4
In metal equipment and metal parts, grease is used for the purpose of lubrication and corrosion resistance
Data Source
AI summary
An anticorrosive agent including: a high-consistency material having a lubricant base oil and an amide compound, a composition of a phosphorus compound comprising one or more compounds represented by the general formulae (1) and (2) and a metal, and at least one kind of resin selected from a rosin-based resin, a terpene resin, a terpene phenol resin, a phenol resin, a coumarone-indene resin, and a petroleum resin, wherein a mass ratio of the high-consistency material and the composition is within a range of 50:50 to 98:2, and a content of resin is 2 to 20 parts by mass with respect to 100 parts by mass of the total of the high-consistency material and the composition.